Minerals Engineering
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publication venue for: Carboxymethylcellulose (CMC) as PbS depressant in the processing of Pb-Cu bulk concentrates. Adsorption and floatability studies

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RDF description of Carboxymethylcellulose (CMC) as PbS depressant in the processing of Pb-Cu bulk concentrates. Adsorption and floatability studies - http://orbis.uaslp.mx/vivo/individual/scopus5303
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date: 2026-08-25T07:02:30
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Carboxymethylcellulose (CMC) as PbS depressant in the processing of Pb-Cu bulk concentrates. Adsorption and floatability studies
volume: 112
e iscopus: 2-s2.0-85025625195
doi: 10.1016/j.mineng.2017.07.012
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type: Article
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related by: authorship_33006
related by: authorship_33005
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origen: scopus
page end: 83
crisid: 5304
has publication venue: Minerals Engineering
page start: 77
most specific type: Article
related by: authorship_33003
has funding vehicle: Universidad Nacional de San Luis, UNSL
abstract: Adsorption of CMC on galena (PbS) was investigated through electrokinetic, adsorption and ATR-FTIR spectroscopic studies. In addition, CMC adsorption on chalcopyrite (CuFeS2) was carried out to compare it to that on PbS. The effect of CMC on the floatability of PbS and CuFeS2 was assessed by microflotation using PbS and CuFeS2 crystals and ethyl xanthate as collector. Furthermore, the effect of oxidation of the minerals on the floatability and CMC adsorption was studied. CMC adsorption on PbS took place within a pH range of significant concentration of the hydroxo-complex species PbOH%2b wherein the COOH group of the CMC is as COO−. It is proposed that CMC adsorbs through intramolecular electrostatic and acid/base interactions between the COO− and PbOH%2b at the PbS/aqueous solution interface. Adsorption of ethyl xanthate on PbS is more stable than that of CMC. Oxidation creates SO4 species on the PbS surface promoting co-adsorption of CMC, through which the PbS surface becomes hydrophilic on top of the hydrophobicity due to adsorbed ethyl xanthate. Upon oxidation, the high PbS floatability was largely hindered by CMC while that of CuFeS2 was not affected. Flotation strategies are presented for the application of the non-toxic polysaccharide CMC as a depressant of PbS in the separation of Pb-Cu bulk concentrates while floating CuFeS2. © 2017
related by: authorship_33004
most specific type: Document
estado: published
freetext keyword: Adsorption; Carboxymethylcellulose; Chalcopyrite; Electrokinetics; Flotation; Galena Adsorption; Binary alloys; Copper alloys; Electrodynamics; Electrohydrodynamics; Electromagnetic fields; Flotation; Iron alloys; Oxidation; Spectroscopic analysis; Carboxy methylcellulose; Chalcopyrite; Electro-kinetic; Electrokinetics; Galena; Hydroxo complexes; Solution interface; Spectroscopic studies; Lead alloys
type: Document
date time value: article date 5304
type: Generically Dependent Continuant
abstract: Adsorption of CMC on galena (PbS) was investigated through electrokinetic, adsorption and ATR-FTIR spectroscopic studies. In addition, CMC adsorption on chalcopyrite (CuFeS2) was carried out to compare it to that on PbS. The effect of CMC on the floatability of PbS and CuFeS2 was assessed by microflotation using PbS and CuFeS2 crystals and ethyl xanthate as collector. Furthermore, the effect of oxidation of the minerals on the floatability and CMC adsorption was studied. CMC adsorption on PbS took place within a pH range of significant concentration of the hydroxo-complex species PbOH wherein the COOH group of the CMC is as COO−. It is proposed that CMC adsorbs through intramolecular electrostatic and acid/base interactions between the COO− and PbOH at the PbS/aqueous solution interface. Adsorption of ethyl xanthate on PbS is more stable than that of CMC. Oxidation creates SO4 species on the PbS surface promoting co-adsorption of CMC, through which the PbS surface becomes hydrophilic on top of the hydrophobicity due to adsorbed ethyl xanthate. Upon oxidation, the high PbS floatability was largely hindered by CMC while that of CuFeS2 was not affected. Flotation strategies are presented for the application of the non-toxic polysaccharide CMC as a depressant of PbS in the separation of Pb-Cu bulk concentrates while floating CuFeS2. © 2017
has funding vehicle: 281812, CB 155148-2010-01
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Universidad Nacional de San Luis, UNSL
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type: BFO_0000020
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type: Thing
type: Grant
type: Continuant
funding vehicle for: Carboxymethylcellulose (CMC) as PbS depressant in the processing of Pb-Cu bulk concentrates. Adsorption and floatability studies

Information Content Entity
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281812, CB 155148-2010-01
type: Relationship
type: BFO_0000020
type: Entity
type: Thing
type: Grant
type: Continuant
funding vehicle for: Carboxymethylcellulose (CMC) as PbS depressant in the processing of Pb-Cu bulk concentrates. Adsorption and floatability studies