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X‐ray photoelectron study of surface compounds formed during flotation of minerals
Author(s) -
Nefedov V. I.,
Salyn Ya. V.,
Solozhenkin P. M.,
Pulatov G. Yu.
Publication year - 1980
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740020503
Subject(s) - reagent , chemistry , x ray photoelectron spectroscopy , nuclear chemistry , inorganic chemistry , chemical engineering , engineering
The compounds formed on the surface of minerals under the action of flotation reagents have been studied by ESCA. On a ZnS surface treated with CuSO 4 solution, Cu 2 S and SO 4 2−were identified. The quantity of Cu 2 S increased and that of SO 4 2−decreased with increased Fe content in ZnS. After treatment of PbS with K 2 Cr 2 O 7 solution, a combination of Cr 2 O 3 and Pb(OH) 2 , or PbCr 2 O 4 was formed on the surface. The action of Pb(NO 3 ) 2 solution on Sb 2 S 3 led to the formation of PbSb 2 S 4 type compounds. HgO or HgS were formed on an Sb 2 S 3 surface after treatment with (C 2 H 5 ) 2 NC 6 H 4 HGOCOCH 3 solution. In all cases excluding the PbS and K 2 Cr 2 O 7 system the quantity of products formed on the surface increased with reagent concentration.