FTIR and flotation investigation of adsorption of diethyl dithiophosphate on sulfide minerals

Jaakko Leppinen

Research output: Book/ReportReport

Abstract

The interaction between aqueous sodium diethyl dithiophosphate and the sulfide minerals pyrite, pyrrhotite, chalcopyrite and sphalerite has been studied using FTIR spectroscopy and microflotation. The effect of pH, collector concentration and copper sulfate addition was examined. Iron-DTP surface compounds were formed on non-activated pyrite and pyrrhotite and copper-DTP was found on chalcopyrite. Copper-DTP was the surface product on the activated sulfide minerals. Adsorption of DTP on non-activated minerals was strongest at low pH, whereas activation lead to strong adsorption at neutral pH, too. The microflotation data agreed well with the adsorption data.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages23
ISBN (Print)951-38-3844-7
Publication statusPublished - 1991
MoE publication typeD4 Published development or research report or study

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports
Number726
ISSN0358-5077

Fingerprint

sulfide
pyrrhotite
copper
adsorption
chalcopyrite
pyrite
mineral
sphalerite
FTIR spectroscopy
sodium
sulfate
iron
flotation
effect
product

Keywords

  • flotation
  • activation
  • flotation reagents
  • sulfide minerals
  • pyrite
  • adsorption
  • surface chemistry
  • pyrrhotite
  • chalcopyrite
  • sphalerite
  • copper sulfates
  • concentration
  • (composition)
  • pH
  • spectroscopy

Cite this

Leppinen, J. (1991). FTIR and flotation investigation of adsorption of diethyl dithiophosphate on sulfide minerals. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, No. 726
Leppinen, Jaakko. / FTIR and flotation investigation of adsorption of diethyl dithiophosphate on sulfide minerals. Espoo : VTT Technical Research Centre of Finland, 1991. 23 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 726).
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abstract = "The interaction between aqueous sodium diethyl dithiophosphate and the sulfide minerals pyrite, pyrrhotite, chalcopyrite and sphalerite has been studied using FTIR spectroscopy and microflotation. The effect of pH, collector concentration and copper sulfate addition was examined. Iron-DTP surface compounds were formed on non-activated pyrite and pyrrhotite and copper-DTP was found on chalcopyrite. Copper-DTP was the surface product on the activated sulfide minerals. Adsorption of DTP on non-activated minerals was strongest at low pH, whereas activation lead to strong adsorption at neutral pH, too. The microflotation data agreed well with the adsorption data.",
keywords = "flotation, activation, flotation reagents, sulfide minerals, pyrite, adsorption, surface chemistry, pyrrhotite, chalcopyrite, sphalerite, copper sulfates, concentration, (composition), pH, spectroscopy",
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Leppinen, J 1991, FTIR and flotation investigation of adsorption of diethyl dithiophosphate on sulfide minerals. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, no. 726, VTT Technical Research Centre of Finland, Espoo.

FTIR and flotation investigation of adsorption of diethyl dithiophosphate on sulfide minerals. / Leppinen, Jaakko.

Espoo : VTT Technical Research Centre of Finland, 1991. 23 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 726).

Research output: Book/ReportReport

TY - BOOK

T1 - FTIR and flotation investigation of adsorption of diethyl dithiophosphate on sulfide minerals

AU - Leppinen, Jaakko

PY - 1991

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AB - The interaction between aqueous sodium diethyl dithiophosphate and the sulfide minerals pyrite, pyrrhotite, chalcopyrite and sphalerite has been studied using FTIR spectroscopy and microflotation. The effect of pH, collector concentration and copper sulfate addition was examined. Iron-DTP surface compounds were formed on non-activated pyrite and pyrrhotite and copper-DTP was found on chalcopyrite. Copper-DTP was the surface product on the activated sulfide minerals. Adsorption of DTP on non-activated minerals was strongest at low pH, whereas activation lead to strong adsorption at neutral pH, too. The microflotation data agreed well with the adsorption data.

KW - flotation

KW - activation

KW - flotation reagents

KW - sulfide minerals

KW - pyrite

KW - adsorption

KW - surface chemistry

KW - pyrrhotite

KW - chalcopyrite

KW - sphalerite

KW - copper sulfates

KW - concentration

KW - (composition)

KW - pH

KW - spectroscopy

M3 - Report

SN - 951-38-3844-7

T3 - Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports

BT - FTIR and flotation investigation of adsorption of diethyl dithiophosphate on sulfide minerals

PB - VTT Technical Research Centre of Finland

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ER -

Leppinen J. FTIR and flotation investigation of adsorption of diethyl dithiophosphate on sulfide minerals. Espoo: VTT Technical Research Centre of Finland, 1991. 23 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 726).