An investigation of the mechanism of using iron chelate as a collector during scheelite flotation

The use of lead ions in combination with benzohydroxamic acid (BHA) as a collector is commonly adopted to modify the surface properties of tungsten minerals to improve their floatability. However, the dosage of lead ions is difficult to precisely control, causing excess dissociative lead ions in the...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Zhao, Chen [verfasserIn] Sun, Chuanyao [verfasserIn] Yin, Wanzhong [verfasserIn] Luo, Binbin [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Schlagwörter:	Fe-BHA chelate Scheelite flotation Chemical adsorption Electrostatic adsorption

Übergeordnetes Werk:	Enthalten in: Minerals engineering - Amsterdam [u.a.] : Elsevier Science, 1988, 131, Seite 146-153
Übergeordnetes Werk:	volume:131 ; pages:146-153

DOI / URN:	10.1016/j.mineng.2018.11.009

Katalog-ID:	ELV001719688

Internformat


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520			\|a The use of lead ions in combination with benzohydroxamic acid (BHA) as a collector is commonly adopted to modify the surface properties of tungsten minerals to improve their floatability. However, the dosage of lead ions is difficult to precisely control, causing excess dissociative lead ions in the pulp that can consume BHA and lead to a reduction of flotation efficiency. This paper develops a new iron chelate reagent that consists of ferric chloride (FeCl3) and BHA by changing the conventional dosing sequence of FeCl3. The individual mineral flotation results showed that the Fe-BHA chelate had a better scheelite collecting ability compared to the Pb-BHA or Al-BHA chelate, and it proved to be superior to the BHA using Fe3+, Pb2+, and Al3+ as activators. The Fe-BHA chelate also showed a good separation performance in the artificially mixed mineral flotation tests of scheelite and calcite at pH 8.0, as well as of scheelite and fluorite at pH 11.0. The zeta potential measurement results showed that the Fe-BHA chelate altered the zeta potential of scheelite to more positive values compared to the BHA with Fe3+ ions as activators at pH 8.0–12.0. The FTIR analysis verified the chemical adsorption of the Fe-BHA chelate on the scheelite surface. By conducting Freundlich fitting of the adsorption isotherm of the Fe-BHA chelate on scheelite, the adsorption of Fe-BHA is demonstrated to be an ion-molecule co-adsorption. The potential of the Fe-BHA chelate as a scheelite collector is also proven.
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700	1		\|a Yin, Wanzhong \|e verfasserin \|4 aut
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publishDate	2018
allfields	10.1016/j.mineng.2018.11.009 doi (DE-627)ELV001719688 (ELSEVIER)S0892-6875(18)30482-5 DE-627 ger DE-627 rda eng 660 DE-101 620 660 DE-600 57.50 bkl 58.41 bkl Zhao, Chen verfasserin (orcid)0000-0002-6165-9701 aut An investigation of the mechanism of using iron chelate as a collector during scheelite flotation 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The use of lead ions in combination with benzohydroxamic acid (BHA) as a collector is commonly adopted to modify the surface properties of tungsten minerals to improve their floatability. However, the dosage of lead ions is difficult to precisely control, causing excess dissociative lead ions in the pulp that can consume BHA and lead to a reduction of flotation efficiency. This paper develops a new iron chelate reagent that consists of ferric chloride (FeCl3) and BHA by changing the conventional dosing sequence of FeCl3. The individual mineral flotation results showed that the Fe-BHA chelate had a better scheelite collecting ability compared to the Pb-BHA or Al-BHA chelate, and it proved to be superior to the BHA using Fe3+, Pb2+, and Al3+ as activators. The Fe-BHA chelate also showed a good separation performance in the artificially mixed mineral flotation tests of scheelite and calcite at pH 8.0, as well as of scheelite and fluorite at pH 11.0. The zeta potential measurement results showed that the Fe-BHA chelate altered the zeta potential of scheelite to more positive values compared to the BHA with Fe3+ ions as activators at pH 8.0–12.0. The FTIR analysis verified the chemical adsorption of the Fe-BHA chelate on the scheelite surface. By conducting Freundlich fitting of the adsorption isotherm of the Fe-BHA chelate on scheelite, the adsorption of Fe-BHA is demonstrated to be an ion-molecule co-adsorption. The potential of the Fe-BHA chelate as a scheelite collector is also proven. Fe-BHA chelate Scheelite flotation Chemical adsorption Electrostatic adsorption Sun, Chuanyao verfasserin aut Yin, Wanzhong verfasserin aut Luo, Binbin verfasserin aut Enthalten in Minerals engineering Amsterdam [u.a.] : Elsevier Science, 1988 131, Seite 146-153 Online-Ressource (DE-627)320529088 (DE-600)2015542-6 (DE-576)259484881 nnns volume:131 pages:146-153 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-GGO 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_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_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_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_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 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 57.50 Aufbereitung von Bodenschätzen 58.41 Hüttenwesen AR 131 146-153
spelling	10.1016/j.mineng.2018.11.009 doi (DE-627)ELV001719688 (ELSEVIER)S0892-6875(18)30482-5 DE-627 ger DE-627 rda eng 660 DE-101 620 660 DE-600 57.50 bkl 58.41 bkl Zhao, Chen verfasserin (orcid)0000-0002-6165-9701 aut An investigation of the mechanism of using iron chelate as a collector during scheelite flotation 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The use of lead ions in combination with benzohydroxamic acid (BHA) as a collector is commonly adopted to modify the surface properties of tungsten minerals to improve their floatability. However, the dosage of lead ions is difficult to precisely control, causing excess dissociative lead ions in the pulp that can consume BHA and lead to a reduction of flotation efficiency. This paper develops a new iron chelate reagent that consists of ferric chloride (FeCl3) and BHA by changing the conventional dosing sequence of FeCl3. The individual mineral flotation results showed that the Fe-BHA chelate had a better scheelite collecting ability compared to the Pb-BHA or Al-BHA chelate, and it proved to be superior to the BHA using Fe3+, Pb2+, and Al3+ as activators. The Fe-BHA chelate also showed a good separation performance in the artificially mixed mineral flotation tests of scheelite and calcite at pH 8.0, as well as of scheelite and fluorite at pH 11.0. The zeta potential measurement results showed that the Fe-BHA chelate altered the zeta potential of scheelite to more positive values compared to the BHA with Fe3+ ions as activators at pH 8.0–12.0. The FTIR analysis verified the chemical adsorption of the Fe-BHA chelate on the scheelite surface. By conducting Freundlich fitting of the adsorption isotherm of the Fe-BHA chelate on scheelite, the adsorption of Fe-BHA is demonstrated to be an ion-molecule co-adsorption. The potential of the Fe-BHA chelate as a scheelite collector is also proven. Fe-BHA chelate Scheelite flotation Chemical adsorption Electrostatic adsorption Sun, Chuanyao verfasserin aut Yin, Wanzhong verfasserin aut Luo, Binbin verfasserin aut Enthalten in Minerals engineering Amsterdam [u.a.] : Elsevier Science, 1988 131, Seite 146-153 Online-Ressource (DE-627)320529088 (DE-600)2015542-6 (DE-576)259484881 nnns volume:131 pages:146-153 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-GGO 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_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_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_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_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 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 57.50 Aufbereitung von Bodenschätzen 58.41 Hüttenwesen AR 131 146-153
allfields_unstemmed	10.1016/j.mineng.2018.11.009 doi (DE-627)ELV001719688 (ELSEVIER)S0892-6875(18)30482-5 DE-627 ger DE-627 rda eng 660 DE-101 620 660 DE-600 57.50 bkl 58.41 bkl Zhao, Chen verfasserin (orcid)0000-0002-6165-9701 aut An investigation of the mechanism of using iron chelate as a collector during scheelite flotation 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The use of lead ions in combination with benzohydroxamic acid (BHA) as a collector is commonly adopted to modify the surface properties of tungsten minerals to improve their floatability. However, the dosage of lead ions is difficult to precisely control, causing excess dissociative lead ions in the pulp that can consume BHA and lead to a reduction of flotation efficiency. This paper develops a new iron chelate reagent that consists of ferric chloride (FeCl3) and BHA by changing the conventional dosing sequence of FeCl3. The individual mineral flotation results showed that the Fe-BHA chelate had a better scheelite collecting ability compared to the Pb-BHA or Al-BHA chelate, and it proved to be superior to the BHA using Fe3+, Pb2+, and Al3+ as activators. The Fe-BHA chelate also showed a good separation performance in the artificially mixed mineral flotation tests of scheelite and calcite at pH 8.0, as well as of scheelite and fluorite at pH 11.0. The zeta potential measurement results showed that the Fe-BHA chelate altered the zeta potential of scheelite to more positive values compared to the BHA with Fe3+ ions as activators at pH 8.0–12.0. The FTIR analysis verified the chemical adsorption of the Fe-BHA chelate on the scheelite surface. By conducting Freundlich fitting of the adsorption isotherm of the Fe-BHA chelate on scheelite, the adsorption of Fe-BHA is demonstrated to be an ion-molecule co-adsorption. The potential of the Fe-BHA chelate as a scheelite collector is also proven. Fe-BHA chelate Scheelite flotation Chemical adsorption Electrostatic adsorption Sun, Chuanyao verfasserin aut Yin, Wanzhong verfasserin aut Luo, Binbin verfasserin aut Enthalten in Minerals engineering Amsterdam [u.a.] : Elsevier Science, 1988 131, Seite 146-153 Online-Ressource (DE-627)320529088 (DE-600)2015542-6 (DE-576)259484881 nnns volume:131 pages:146-153 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-GGO 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_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_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_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_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 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 57.50 Aufbereitung von Bodenschätzen 58.41 Hüttenwesen AR 131 146-153
allfieldsGer	10.1016/j.mineng.2018.11.009 doi (DE-627)ELV001719688 (ELSEVIER)S0892-6875(18)30482-5 DE-627 ger DE-627 rda eng 660 DE-101 620 660 DE-600 57.50 bkl 58.41 bkl Zhao, Chen verfasserin (orcid)0000-0002-6165-9701 aut An investigation of the mechanism of using iron chelate as a collector during scheelite flotation 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The use of lead ions in combination with benzohydroxamic acid (BHA) as a collector is commonly adopted to modify the surface properties of tungsten minerals to improve their floatability. However, the dosage of lead ions is difficult to precisely control, causing excess dissociative lead ions in the pulp that can consume BHA and lead to a reduction of flotation efficiency. This paper develops a new iron chelate reagent that consists of ferric chloride (FeCl3) and BHA by changing the conventional dosing sequence of FeCl3. The individual mineral flotation results showed that the Fe-BHA chelate had a better scheelite collecting ability compared to the Pb-BHA or Al-BHA chelate, and it proved to be superior to the BHA using Fe3+, Pb2+, and Al3+ as activators. The Fe-BHA chelate also showed a good separation performance in the artificially mixed mineral flotation tests of scheelite and calcite at pH 8.0, as well as of scheelite and fluorite at pH 11.0. The zeta potential measurement results showed that the Fe-BHA chelate altered the zeta potential of scheelite to more positive values compared to the BHA with Fe3+ ions as activators at pH 8.0–12.0. The FTIR analysis verified the chemical adsorption of the Fe-BHA chelate on the scheelite surface. By conducting Freundlich fitting of the adsorption isotherm of the Fe-BHA chelate on scheelite, the adsorption of Fe-BHA is demonstrated to be an ion-molecule co-adsorption. The potential of the Fe-BHA chelate as a scheelite collector is also proven. Fe-BHA chelate Scheelite flotation Chemical adsorption Electrostatic adsorption Sun, Chuanyao verfasserin aut Yin, Wanzhong verfasserin aut Luo, Binbin verfasserin aut Enthalten in Minerals engineering Amsterdam [u.a.] : Elsevier Science, 1988 131, Seite 146-153 Online-Ressource (DE-627)320529088 (DE-600)2015542-6 (DE-576)259484881 nnns volume:131 pages:146-153 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-GGO 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_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_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_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_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 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 57.50 Aufbereitung von Bodenschätzen 58.41 Hüttenwesen AR 131 146-153
allfieldsSound	10.1016/j.mineng.2018.11.009 doi (DE-627)ELV001719688 (ELSEVIER)S0892-6875(18)30482-5 DE-627 ger DE-627 rda eng 660 DE-101 620 660 DE-600 57.50 bkl 58.41 bkl Zhao, Chen verfasserin (orcid)0000-0002-6165-9701 aut An investigation of the mechanism of using iron chelate as a collector during scheelite flotation 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The use of lead ions in combination with benzohydroxamic acid (BHA) as a collector is commonly adopted to modify the surface properties of tungsten minerals to improve their floatability. However, the dosage of lead ions is difficult to precisely control, causing excess dissociative lead ions in the pulp that can consume BHA and lead to a reduction of flotation efficiency. This paper develops a new iron chelate reagent that consists of ferric chloride (FeCl3) and BHA by changing the conventional dosing sequence of FeCl3. The individual mineral flotation results showed that the Fe-BHA chelate had a better scheelite collecting ability compared to the Pb-BHA or Al-BHA chelate, and it proved to be superior to the BHA using Fe3+, Pb2+, and Al3+ as activators. The Fe-BHA chelate also showed a good separation performance in the artificially mixed mineral flotation tests of scheelite and calcite at pH 8.0, as well as of scheelite and fluorite at pH 11.0. The zeta potential measurement results showed that the Fe-BHA chelate altered the zeta potential of scheelite to more positive values compared to the BHA with Fe3+ ions as activators at pH 8.0–12.0. The FTIR analysis verified the chemical adsorption of the Fe-BHA chelate on the scheelite surface. By conducting Freundlich fitting of the adsorption isotherm of the Fe-BHA chelate on scheelite, the adsorption of Fe-BHA is demonstrated to be an ion-molecule co-adsorption. The potential of the Fe-BHA chelate as a scheelite collector is also proven. Fe-BHA chelate Scheelite flotation Chemical adsorption Electrostatic adsorption Sun, Chuanyao verfasserin aut Yin, Wanzhong verfasserin aut Luo, Binbin verfasserin aut Enthalten in Minerals engineering Amsterdam [u.a.] : Elsevier Science, 1988 131, Seite 146-153 Online-Ressource (DE-627)320529088 (DE-600)2015542-6 (DE-576)259484881 nnns volume:131 pages:146-153 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-GGO 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_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_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_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_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 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 57.50 Aufbereitung von Bodenschätzen 58.41 Hüttenwesen AR 131 146-153
language	English
source	Enthalten in Minerals engineering 131, Seite 146-153 volume:131 pages:146-153
sourceStr	Enthalten in Minerals engineering 131, Seite 146-153 volume:131 pages:146-153
format_phy_str_mv	Article
bklname	Aufbereitung von Bodenschätzen Hüttenwesen
institution	findex.gbv.de
topic_facet	Fe-BHA chelate Scheelite flotation Chemical adsorption Electrostatic adsorption
dewey-raw	660
isfreeaccess_bool	false
container_title	Minerals engineering
authorswithroles_txt_mv	Zhao, Chen @@aut@@ Sun, Chuanyao @@aut@@ Yin, Wanzhong @@aut@@ Luo, Binbin @@aut@@
publishDateDaySort_date	2018-01-01T00:00:00Z
hierarchy_top_id	320529088
dewey-sort	3660
id	ELV001719688
language_de	englisch
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author	Zhao, Chen
spellingShingle	Zhao, Chen ddc 660 ddc 620 bkl 57.50 bkl 58.41 misc Fe-BHA chelate misc Scheelite flotation misc Chemical adsorption misc Electrostatic adsorption An investigation of the mechanism of using iron chelate as a collector during scheelite flotation
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topic_title	660 DE-101 620 660 DE-600 57.50 bkl 58.41 bkl An investigation of the mechanism of using iron chelate as a collector during scheelite flotation Fe-BHA chelate Scheelite flotation Chemical adsorption Electrostatic adsorption
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title	An investigation of the mechanism of using iron chelate as a collector during scheelite flotation
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title_full	An investigation of the mechanism of using iron chelate as a collector during scheelite flotation
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title_sort	an investigation of the mechanism of using iron chelate as a collector during scheelite flotation
title_auth	An investigation of the mechanism of using iron chelate as a collector during scheelite flotation
abstract	The use of lead ions in combination with benzohydroxamic acid (BHA) as a collector is commonly adopted to modify the surface properties of tungsten minerals to improve their floatability. However, the dosage of lead ions is difficult to precisely control, causing excess dissociative lead ions in the pulp that can consume BHA and lead to a reduction of flotation efficiency. This paper develops a new iron chelate reagent that consists of ferric chloride (FeCl3) and BHA by changing the conventional dosing sequence of FeCl3. The individual mineral flotation results showed that the Fe-BHA chelate had a better scheelite collecting ability compared to the Pb-BHA or Al-BHA chelate, and it proved to be superior to the BHA using Fe3+, Pb2+, and Al3+ as activators. The Fe-BHA chelate also showed a good separation performance in the artificially mixed mineral flotation tests of scheelite and calcite at pH 8.0, as well as of scheelite and fluorite at pH 11.0. The zeta potential measurement results showed that the Fe-BHA chelate altered the zeta potential of scheelite to more positive values compared to the BHA with Fe3+ ions as activators at pH 8.0–12.0. The FTIR analysis verified the chemical adsorption of the Fe-BHA chelate on the scheelite surface. By conducting Freundlich fitting of the adsorption isotherm of the Fe-BHA chelate on scheelite, the adsorption of Fe-BHA is demonstrated to be an ion-molecule co-adsorption. The potential of the Fe-BHA chelate as a scheelite collector is also proven.
abstractGer	The use of lead ions in combination with benzohydroxamic acid (BHA) as a collector is commonly adopted to modify the surface properties of tungsten minerals to improve their floatability. However, the dosage of lead ions is difficult to precisely control, causing excess dissociative lead ions in the pulp that can consume BHA and lead to a reduction of flotation efficiency. This paper develops a new iron chelate reagent that consists of ferric chloride (FeCl3) and BHA by changing the conventional dosing sequence of FeCl3. The individual mineral flotation results showed that the Fe-BHA chelate had a better scheelite collecting ability compared to the Pb-BHA or Al-BHA chelate, and it proved to be superior to the BHA using Fe3+, Pb2+, and Al3+ as activators. The Fe-BHA chelate also showed a good separation performance in the artificially mixed mineral flotation tests of scheelite and calcite at pH 8.0, as well as of scheelite and fluorite at pH 11.0. The zeta potential measurement results showed that the Fe-BHA chelate altered the zeta potential of scheelite to more positive values compared to the BHA with Fe3+ ions as activators at pH 8.0–12.0. The FTIR analysis verified the chemical adsorption of the Fe-BHA chelate on the scheelite surface. By conducting Freundlich fitting of the adsorption isotherm of the Fe-BHA chelate on scheelite, the adsorption of Fe-BHA is demonstrated to be an ion-molecule co-adsorption. The potential of the Fe-BHA chelate as a scheelite collector is also proven.
abstract_unstemmed	The use of lead ions in combination with benzohydroxamic acid (BHA) as a collector is commonly adopted to modify the surface properties of tungsten minerals to improve their floatability. However, the dosage of lead ions is difficult to precisely control, causing excess dissociative lead ions in the pulp that can consume BHA and lead to a reduction of flotation efficiency. This paper develops a new iron chelate reagent that consists of ferric chloride (FeCl3) and BHA by changing the conventional dosing sequence of FeCl3. The individual mineral flotation results showed that the Fe-BHA chelate had a better scheelite collecting ability compared to the Pb-BHA or Al-BHA chelate, and it proved to be superior to the BHA using Fe3+, Pb2+, and Al3+ as activators. The Fe-BHA chelate also showed a good separation performance in the artificially mixed mineral flotation tests of scheelite and calcite at pH 8.0, as well as of scheelite and fluorite at pH 11.0. The zeta potential measurement results showed that the Fe-BHA chelate altered the zeta potential of scheelite to more positive values compared to the BHA with Fe3+ ions as activators at pH 8.0–12.0. The FTIR analysis verified the chemical adsorption of the Fe-BHA chelate on the scheelite surface. By conducting Freundlich fitting of the adsorption isotherm of the Fe-BHA chelate on scheelite, the adsorption of Fe-BHA is demonstrated to be an ion-molecule co-adsorption. The potential of the Fe-BHA chelate as a scheelite collector is also proven.
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title_short	An investigation of the mechanism of using iron chelate as a collector during scheelite flotation
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score	7.4027834

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An investigation of the mechanism of using iron chelate as a collector during scheelite flotation

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