NDLI: Separation of sulfide lead-zinc-silver ore under low alkalinity condition

Content Provider	Springer Nature Link
Author	Sun, Wei Su, Jian fang Zhang, Gang Hu, Yue hua
Copyright Year	2012
Abstract	A complex lead-zinc-silver sulfide ore containing 2.98% Pb, 6.49% Zn and 116.32×10$^{−4}$ % Ag (mass fraction) from Yunnan Province, China, was subjected to this work. Research on mineral processing was conducted according to the properties of the lead-zinc-silver ore. Under low alkalinity condition, the lead minerals are successfully separated from the zinc minerals with new reagent YZN as zinc depressant, new reagent BPB as lead collector, CuSO$_{4}$ as zinc activator and ethyl xanthate as zinc collector. The associated silver is mostly concentrated to the lead concentrate. With the process utilized in this work, a lead concentrate of 51.90% Pb with a recovery of 82.34% and a zinc concentrate of 56.96% Zn with a recovery of 81.98% are produced. The silver recovery in the lead concentrate is 80.61%. Interactions of flotation reagents with minerals were investigated, of which the results indicate that the presence of proper amount of Na$_{2}$S can precipitate Pb$^{2+}$ and has a sulfidation on oxidized lead minerals. The results also show that Na$_{2}$CO$_{3}$ and YZN used together as combined depressants for sphalerite can signally improve the depressing effect of new reagent YZN on sphalerite.
Starting Page	2307
Ending Page	2315
Page Count	9
File Format	PDF
ISSN	20952899
Journal	Journal of Central South University of Technology
Volume Number	19
Issue Number	8
e-ISSN	22275223
Language	English
Publisher	Central South University
Publisher Date	2012-08-03
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	lead-zinc-silver sulfide low alkalinity new flotation reagents lead-zinc separation silver recovery Metallic Materials Engineering
Content Type	Text
Resource Type	Article
Subject	Metals and Alloys Engineering

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