Removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process
A green and efficient method for removing arsenic (As), lead (Pb) and bismuth (Bi) from copper anode slime by a one-step vacuum carbothermal reduction process was proposed. In this paper, the Gibbs free energy and saturation vapor pressure for the reduction process were analyzed theoretically. The e...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Li, Baole [verfasserIn] Deng, Juhai [verfasserIn] Jiang, Wenlong [verfasserIn] Zha, Guozheng [verfasserIn] Yang, Bin [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Separation and purification technology - Amsterdam [u.a.] : Elsevier Science, 1997, 310 |
|---|---|
| Übergeordnetes Werk: |
volume:310 |
| DOI / URN: |
10.1016/j.seppur.2022.123059 |
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ELV06130767X |
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| 245 | 1 | 0 | |a Removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process |
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| 520 | |a A green and efficient method for removing arsenic (As), lead (Pb) and bismuth (Bi) from copper anode slime by a one-step vacuum carbothermal reduction process was proposed. In this paper, the Gibbs free energy and saturation vapor pressure for the reduction process were analyzed theoretically. The effects of temperature and holding time on the reduction and removal ratios for As, Pb and Bi were investigated experimentally. The results showed that the weight loss ratio of the feedstock was 48.28 %, and Pb and Bi decreased to levels below the lower limits for detection with inductively coupled plasma atomic emission spectrometry (ICP–AES), i.e., from 4.81 % and 7.32 %; these values were determined for the optimal vacuum carbothermal reduction conditions, which included a reaction temperature of 1073 K, a holding time of 2 h and a system pressure of 10 Pa. 81.81 % of the As and all of the Pb and Bi were removed. The amounts of Ag and Au recovered in the residue increased from 10.64 % and 510 (g/t) to 15.61 % and 742 (g/t), and the recovery efficiencies were 99.76 % and 99.9 %, respectively. The innovative process proposed in this paper thoroughly separated As, Pb, Bi and precious metals. Volatiles such as As2O3, PbS, and BiSe were placed in lead smelting plants, and the Ag and Au in the residue were placed in copper anode slime for extraction of precious metals, which greatly improved the efficiencies for recovering valuable metals from anode slime and avoided emission of arsenic-containing waste gas and wastewater. | ||
| 650 | 4 | |a Copper anode slime | |
| 650 | 4 | |a Selective separation | |
| 650 | 4 | |a Vacuum thermal decomposition | |
| 650 | 4 | |a Sustainable process | |
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| 700 | 1 | |a Jiang, Wenlong |e verfasserin |4 aut | |
| 700 | 1 | |a Zha, Guozheng |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Bin |e verfasserin |4 aut | |
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10.1016/j.seppur.2022.123059 doi (DE-627)ELV06130767X (ELSEVIER)S1383-5866(22)02616-8 DE-627 ger DE-627 rda eng 540 VZ 58.11 bkl 58.13 bkl Li, Baole verfasserin aut Removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A green and efficient method for removing arsenic (As), lead (Pb) and bismuth (Bi) from copper anode slime by a one-step vacuum carbothermal reduction process was proposed. In this paper, the Gibbs free energy and saturation vapor pressure for the reduction process were analyzed theoretically. The effects of temperature and holding time on the reduction and removal ratios for As, Pb and Bi were investigated experimentally. The results showed that the weight loss ratio of the feedstock was 48.28 %, and Pb and Bi decreased to levels below the lower limits for detection with inductively coupled plasma atomic emission spectrometry (ICP–AES), i.e., from 4.81 % and 7.32 %; these values were determined for the optimal vacuum carbothermal reduction conditions, which included a reaction temperature of 1073 K, a holding time of 2 h and a system pressure of 10 Pa. 81.81 % of the As and all of the Pb and Bi were removed. The amounts of Ag and Au recovered in the residue increased from 10.64 % and 510 (g/t) to 15.61 % and 742 (g/t), and the recovery efficiencies were 99.76 % and 99.9 %, respectively. The innovative process proposed in this paper thoroughly separated As, Pb, Bi and precious metals. Volatiles such as As2O3, PbS, and BiSe were placed in lead smelting plants, and the Ag and Au in the residue were placed in copper anode slime for extraction of precious metals, which greatly improved the efficiencies for recovering valuable metals from anode slime and avoided emission of arsenic-containing waste gas and wastewater. Copper anode slime Selective separation Vacuum thermal decomposition Sustainable process Deng, Juhai verfasserin aut Jiang, Wenlong verfasserin aut Zha, Guozheng verfasserin aut Yang, Bin verfasserin aut Enthalten in Separation and purification technology Amsterdam [u.a.] : Elsevier Science, 1997 310 Online-Ressource (DE-627)320620123 (DE-600)2022535-0 (DE-576)259485349 nnns volume:310 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.11 Mechanische Verfahrenstechnik VZ 58.13 Thermische Verfahrenstechnik VZ AR 310 |
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10.1016/j.seppur.2022.123059 doi (DE-627)ELV06130767X (ELSEVIER)S1383-5866(22)02616-8 DE-627 ger DE-627 rda eng 540 VZ 58.11 bkl 58.13 bkl Li, Baole verfasserin aut Removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A green and efficient method for removing arsenic (As), lead (Pb) and bismuth (Bi) from copper anode slime by a one-step vacuum carbothermal reduction process was proposed. In this paper, the Gibbs free energy and saturation vapor pressure for the reduction process were analyzed theoretically. The effects of temperature and holding time on the reduction and removal ratios for As, Pb and Bi were investigated experimentally. The results showed that the weight loss ratio of the feedstock was 48.28 %, and Pb and Bi decreased to levels below the lower limits for detection with inductively coupled plasma atomic emission spectrometry (ICP–AES), i.e., from 4.81 % and 7.32 %; these values were determined for the optimal vacuum carbothermal reduction conditions, which included a reaction temperature of 1073 K, a holding time of 2 h and a system pressure of 10 Pa. 81.81 % of the As and all of the Pb and Bi were removed. The amounts of Ag and Au recovered in the residue increased from 10.64 % and 510 (g/t) to 15.61 % and 742 (g/t), and the recovery efficiencies were 99.76 % and 99.9 %, respectively. The innovative process proposed in this paper thoroughly separated As, Pb, Bi and precious metals. Volatiles such as As2O3, PbS, and BiSe were placed in lead smelting plants, and the Ag and Au in the residue were placed in copper anode slime for extraction of precious metals, which greatly improved the efficiencies for recovering valuable metals from anode slime and avoided emission of arsenic-containing waste gas and wastewater. Copper anode slime Selective separation Vacuum thermal decomposition Sustainable process Deng, Juhai verfasserin aut Jiang, Wenlong verfasserin aut Zha, Guozheng verfasserin aut Yang, Bin verfasserin aut Enthalten in Separation and purification technology Amsterdam [u.a.] : Elsevier Science, 1997 310 Online-Ressource (DE-627)320620123 (DE-600)2022535-0 (DE-576)259485349 nnns volume:310 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.11 Mechanische Verfahrenstechnik VZ 58.13 Thermische Verfahrenstechnik VZ AR 310 |
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10.1016/j.seppur.2022.123059 doi (DE-627)ELV06130767X (ELSEVIER)S1383-5866(22)02616-8 DE-627 ger DE-627 rda eng 540 VZ 58.11 bkl 58.13 bkl Li, Baole verfasserin aut Removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A green and efficient method for removing arsenic (As), lead (Pb) and bismuth (Bi) from copper anode slime by a one-step vacuum carbothermal reduction process was proposed. In this paper, the Gibbs free energy and saturation vapor pressure for the reduction process were analyzed theoretically. The effects of temperature and holding time on the reduction and removal ratios for As, Pb and Bi were investigated experimentally. The results showed that the weight loss ratio of the feedstock was 48.28 %, and Pb and Bi decreased to levels below the lower limits for detection with inductively coupled plasma atomic emission spectrometry (ICP–AES), i.e., from 4.81 % and 7.32 %; these values were determined for the optimal vacuum carbothermal reduction conditions, which included a reaction temperature of 1073 K, a holding time of 2 h and a system pressure of 10 Pa. 81.81 % of the As and all of the Pb and Bi were removed. The amounts of Ag and Au recovered in the residue increased from 10.64 % and 510 (g/t) to 15.61 % and 742 (g/t), and the recovery efficiencies were 99.76 % and 99.9 %, respectively. The innovative process proposed in this paper thoroughly separated As, Pb, Bi and precious metals. Volatiles such as As2O3, PbS, and BiSe were placed in lead smelting plants, and the Ag and Au in the residue were placed in copper anode slime for extraction of precious metals, which greatly improved the efficiencies for recovering valuable metals from anode slime and avoided emission of arsenic-containing waste gas and wastewater. Copper anode slime Selective separation Vacuum thermal decomposition Sustainable process Deng, Juhai verfasserin aut Jiang, Wenlong verfasserin aut Zha, Guozheng verfasserin aut Yang, Bin verfasserin aut Enthalten in Separation and purification technology Amsterdam [u.a.] : Elsevier Science, 1997 310 Online-Ressource (DE-627)320620123 (DE-600)2022535-0 (DE-576)259485349 nnns volume:310 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.11 Mechanische Verfahrenstechnik VZ 58.13 Thermische Verfahrenstechnik VZ AR 310 |
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10.1016/j.seppur.2022.123059 doi (DE-627)ELV06130767X (ELSEVIER)S1383-5866(22)02616-8 DE-627 ger DE-627 rda eng 540 VZ 58.11 bkl 58.13 bkl Li, Baole verfasserin aut Removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A green and efficient method for removing arsenic (As), lead (Pb) and bismuth (Bi) from copper anode slime by a one-step vacuum carbothermal reduction process was proposed. In this paper, the Gibbs free energy and saturation vapor pressure for the reduction process were analyzed theoretically. The effects of temperature and holding time on the reduction and removal ratios for As, Pb and Bi were investigated experimentally. The results showed that the weight loss ratio of the feedstock was 48.28 %, and Pb and Bi decreased to levels below the lower limits for detection with inductively coupled plasma atomic emission spectrometry (ICP–AES), i.e., from 4.81 % and 7.32 %; these values were determined for the optimal vacuum carbothermal reduction conditions, which included a reaction temperature of 1073 K, a holding time of 2 h and a system pressure of 10 Pa. 81.81 % of the As and all of the Pb and Bi were removed. The amounts of Ag and Au recovered in the residue increased from 10.64 % and 510 (g/t) to 15.61 % and 742 (g/t), and the recovery efficiencies were 99.76 % and 99.9 %, respectively. The innovative process proposed in this paper thoroughly separated As, Pb, Bi and precious metals. Volatiles such as As2O3, PbS, and BiSe were placed in lead smelting plants, and the Ag and Au in the residue were placed in copper anode slime for extraction of precious metals, which greatly improved the efficiencies for recovering valuable metals from anode slime and avoided emission of arsenic-containing waste gas and wastewater. Copper anode slime Selective separation Vacuum thermal decomposition Sustainable process Deng, Juhai verfasserin aut Jiang, Wenlong verfasserin aut Zha, Guozheng verfasserin aut Yang, Bin verfasserin aut Enthalten in Separation and purification technology Amsterdam [u.a.] : Elsevier Science, 1997 310 Online-Ressource (DE-627)320620123 (DE-600)2022535-0 (DE-576)259485349 nnns volume:310 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.11 Mechanische Verfahrenstechnik VZ 58.13 Thermische Verfahrenstechnik VZ AR 310 |
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10.1016/j.seppur.2022.123059 doi (DE-627)ELV06130767X (ELSEVIER)S1383-5866(22)02616-8 DE-627 ger DE-627 rda eng 540 VZ 58.11 bkl 58.13 bkl Li, Baole verfasserin aut Removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A green and efficient method for removing arsenic (As), lead (Pb) and bismuth (Bi) from copper anode slime by a one-step vacuum carbothermal reduction process was proposed. In this paper, the Gibbs free energy and saturation vapor pressure for the reduction process were analyzed theoretically. The effects of temperature and holding time on the reduction and removal ratios for As, Pb and Bi were investigated experimentally. The results showed that the weight loss ratio of the feedstock was 48.28 %, and Pb and Bi decreased to levels below the lower limits for detection with inductively coupled plasma atomic emission spectrometry (ICP–AES), i.e., from 4.81 % and 7.32 %; these values were determined for the optimal vacuum carbothermal reduction conditions, which included a reaction temperature of 1073 K, a holding time of 2 h and a system pressure of 10 Pa. 81.81 % of the As and all of the Pb and Bi were removed. The amounts of Ag and Au recovered in the residue increased from 10.64 % and 510 (g/t) to 15.61 % and 742 (g/t), and the recovery efficiencies were 99.76 % and 99.9 %, respectively. The innovative process proposed in this paper thoroughly separated As, Pb, Bi and precious metals. Volatiles such as As2O3, PbS, and BiSe were placed in lead smelting plants, and the Ag and Au in the residue were placed in copper anode slime for extraction of precious metals, which greatly improved the efficiencies for recovering valuable metals from anode slime and avoided emission of arsenic-containing waste gas and wastewater. Copper anode slime Selective separation Vacuum thermal decomposition Sustainable process Deng, Juhai verfasserin aut Jiang, Wenlong verfasserin aut Zha, Guozheng verfasserin aut Yang, Bin verfasserin aut Enthalten in Separation and purification technology Amsterdam [u.a.] : Elsevier Science, 1997 310 Online-Ressource (DE-627)320620123 (DE-600)2022535-0 (DE-576)259485349 nnns volume:310 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.11 Mechanische Verfahrenstechnik VZ 58.13 Thermische Verfahrenstechnik VZ AR 310 |
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Li, Baole @@aut@@ Deng, Juhai @@aut@@ Jiang, Wenlong @@aut@@ Zha, Guozheng @@aut@@ Yang, Bin @@aut@@ |
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540 VZ 58.11 bkl 58.13 bkl Removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process Copper anode slime Selective separation Vacuum thermal decomposition Sustainable process |
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Removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process |
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removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process |
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Removal of arsenic, lead and bismuth from copper anode slime by a one-step sustainable vacuum carbothermal reduction process |
| abstract |
A green and efficient method for removing arsenic (As), lead (Pb) and bismuth (Bi) from copper anode slime by a one-step vacuum carbothermal reduction process was proposed. In this paper, the Gibbs free energy and saturation vapor pressure for the reduction process were analyzed theoretically. The effects of temperature and holding time on the reduction and removal ratios for As, Pb and Bi were investigated experimentally. The results showed that the weight loss ratio of the feedstock was 48.28 %, and Pb and Bi decreased to levels below the lower limits for detection with inductively coupled plasma atomic emission spectrometry (ICP–AES), i.e., from 4.81 % and 7.32 %; these values were determined for the optimal vacuum carbothermal reduction conditions, which included a reaction temperature of 1073 K, a holding time of 2 h and a system pressure of 10 Pa. 81.81 % of the As and all of the Pb and Bi were removed. The amounts of Ag and Au recovered in the residue increased from 10.64 % and 510 (g/t) to 15.61 % and 742 (g/t), and the recovery efficiencies were 99.76 % and 99.9 %, respectively. The innovative process proposed in this paper thoroughly separated As, Pb, Bi and precious metals. Volatiles such as As2O3, PbS, and BiSe were placed in lead smelting plants, and the Ag and Au in the residue were placed in copper anode slime for extraction of precious metals, which greatly improved the efficiencies for recovering valuable metals from anode slime and avoided emission of arsenic-containing waste gas and wastewater. |
| abstractGer |
A green and efficient method for removing arsenic (As), lead (Pb) and bismuth (Bi) from copper anode slime by a one-step vacuum carbothermal reduction process was proposed. In this paper, the Gibbs free energy and saturation vapor pressure for the reduction process were analyzed theoretically. The effects of temperature and holding time on the reduction and removal ratios for As, Pb and Bi were investigated experimentally. The results showed that the weight loss ratio of the feedstock was 48.28 %, and Pb and Bi decreased to levels below the lower limits for detection with inductively coupled plasma atomic emission spectrometry (ICP–AES), i.e., from 4.81 % and 7.32 %; these values were determined for the optimal vacuum carbothermal reduction conditions, which included a reaction temperature of 1073 K, a holding time of 2 h and a system pressure of 10 Pa. 81.81 % of the As and all of the Pb and Bi were removed. The amounts of Ag and Au recovered in the residue increased from 10.64 % and 510 (g/t) to 15.61 % and 742 (g/t), and the recovery efficiencies were 99.76 % and 99.9 %, respectively. The innovative process proposed in this paper thoroughly separated As, Pb, Bi and precious metals. Volatiles such as As2O3, PbS, and BiSe were placed in lead smelting plants, and the Ag and Au in the residue were placed in copper anode slime for extraction of precious metals, which greatly improved the efficiencies for recovering valuable metals from anode slime and avoided emission of arsenic-containing waste gas and wastewater. |
| abstract_unstemmed |
A green and efficient method for removing arsenic (As), lead (Pb) and bismuth (Bi) from copper anode slime by a one-step vacuum carbothermal reduction process was proposed. In this paper, the Gibbs free energy and saturation vapor pressure for the reduction process were analyzed theoretically. The effects of temperature and holding time on the reduction and removal ratios for As, Pb and Bi were investigated experimentally. The results showed that the weight loss ratio of the feedstock was 48.28 %, and Pb and Bi decreased to levels below the lower limits for detection with inductively coupled plasma atomic emission spectrometry (ICP–AES), i.e., from 4.81 % and 7.32 %; these values were determined for the optimal vacuum carbothermal reduction conditions, which included a reaction temperature of 1073 K, a holding time of 2 h and a system pressure of 10 Pa. 81.81 % of the As and all of the Pb and Bi were removed. The amounts of Ag and Au recovered in the residue increased from 10.64 % and 510 (g/t) to 15.61 % and 742 (g/t), and the recovery efficiencies were 99.76 % and 99.9 %, respectively. The innovative process proposed in this paper thoroughly separated As, Pb, Bi and precious metals. Volatiles such as As2O3, PbS, and BiSe were placed in lead smelting plants, and the Ag and Au in the residue were placed in copper anode slime for extraction of precious metals, which greatly improved the efficiencies for recovering valuable metals from anode slime and avoided emission of arsenic-containing waste gas and wastewater. |
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| score |
7.398096 |