STUDY ON THE AMMONIA AUTOCLAVE LEACHING APPLIED TO SUBSTANDARD COPPER CONCENTRATES IN THE ZHEZKAZGAN DEPOSIT

2018 ◽  
Vol 10 (2) ◽  
pp. 270-280
Author(s):  
Andrei SOLODENKO ◽  
◽  
Vladimir VASILIEV ◽  
Alexander SOLODENKO ◽  
Maxim SEREBRYAKOV ◽  
...  
Keyword(s):  
Autoclave Leaching

Autoclave leaching of activated pyrhotite concentrate

1981 ◽  
Vol 17 (6) ◽  
pp. 566-569 ◽  
Author(s):  
V. G. Kulebakin ◽  
V. N. Fedorov ◽  
A. L. Sirkis ◽  
Yu. T. Mazurov ◽  
V. A. Mikhin ◽  
...  
Keyword(s):  
Autoclave Leaching

Oxidation Sulfuric Acid Autoclave Leaching of Copper Smelting Production Fine Dust

Metallurgist ◽  
2019 ◽  
Vol 62 (11-12) ◽  
pp. 1244-1249 ◽  
Author(s):  
K. A. Karimov ◽  
S. S. Naboichenko ◽  
A. V. Kritskii ◽  
M. A. Tret’yak ◽  
A. A. Kovyazin
Keyword(s):  
Sulfuric Acid ◽  
Copper Smelting ◽  
Fine Dust ◽  
Autoclave Leaching

Investigation of Flotation Separation of Elemental Sulfur and Sulfides from Lead Sulfate from Low-Temperature Leaching of Lead Concentrates

2020 ◽  
Vol 989 ◽  
pp. 537-542
Author(s):  
Kirill A. Karimov ◽  
Aleksei V. Kritskii ◽  
Sergey E. Polygalov
Keyword(s):  
Low Temperature ◽  
Filter Cake ◽  
Elemental Sulfur ◽  
Lead Sulfate ◽  
Raw Material ◽  
Granulation Process ◽  
Flotation Concentrate ◽  
Autoclave Leaching ◽  
Sulfate Lead ◽  
Concentrate Yield

Monometallic ore that is mostly lead found in nature is extremely rare. The main natural raw material for the lead production is sulfide polymetallic ores. In this study the filter cake processing after the low-temperature autoclave leaching of the lead concentrate to produce a sulphide concentrate and lead tailings was investigated The study of component separation was carried out using the methods of mathematical planning of the second order experiment. The following optimal costs of reagents, g/t: 140-200 potassium xanthate, 70-100 foaming agent, 100 copper sulfate; the concentrate yield is 41-43 %; it is extracted to, %: 95 Fe, 49 Cu, 96 Zn, 98 S0, 18-19 Pb. At flotation 18,7% of lead goes into flotation concentrate and 80.5% is lead sulfate. The rectification of the obtained concentrate by flotation did not give acceptable results, since the yield of the foam product in all experiments was 93-96%. For the separation of lead sulphate from sulphur-sulfide concentrate was used in the granulation of sulfur in the following conditions: t = 145 °C, Po2 = 0,0-0,5 MPa, τ = 60 to 120 min. In the granulation process of the flotation concentrate is a division of lead sulfate and elemental sulfur, the sulfate lead content in sulphur-sulfide phase is decreased from 28.44 % to 3.5 %, its recovery in a sulfate filter cake has reached 90.6 %

Autoclave leaching kinetics of a leucoxene concentrate with alkaline solutions

2015 ◽  
Vol 2015 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Yu. V. Zablotskaya ◽  
G. B. Sadykhov ◽  
T. V. Gocharenko
Keyword(s):  
Alkaline Solutions ◽  
Leaching Kinetics ◽  
Autoclave Leaching ◽  
Kinetics Of

Study of the autoclave leaching of a tetrahedrite concentrate

1993 ◽  
Vol 6 (11) ◽  
pp. 1117-1125 ◽  
Author(s):  
M.J. Neiva Correia ◽  
J.R. Carvalho ◽  
A.J. Monhemius
Keyword(s):  
Autoclave Leaching

One-stage autoclave leaching of zinc concentrates in the presence of potassium-containing reagents

2007 ◽  
Vol 41 (5) ◽  
pp. 734-736
Author(s):  
V. M. Piskunov ◽  
S. B. Sadykov ◽  
S. S. Naboichenko
Keyword(s):  
Autoclave Leaching ◽  
One Stage

Study on the New Combined Technology of Tungsten Dressing and Metallurgy and its Economic Feasibility Analysis

2014 ◽  
Vol 694 ◽  
pp. 321-326
Author(s):  
Hai Ling Zhu ◽  
Hai Bo Deng ◽  
Chen Chen
Keyword(s):  
New Technology ◽  
Economic Feasibility ◽  
Feasibility Analysis ◽  
Original Process ◽  
Autoclave Leaching ◽  
Existing Problems ◽  
High Alkali ◽  
Break Even Point ◽  
Polymetallic Ore ◽  
Analysis Point

Based on the existing problems in the tungsten beneficiation of Shizhuyuan polymetallic ore, we present a new combined technology of “iron removal by magnetic separation—desliming by flotation—scheelite and wolframite bulk flotation—high alkali autoclave leaching of tungsten rough concentrate” to increase the comprehensive utilization of tungsten resource. The results show that the tungsten flotation operation obtains the better indexes than the original process at the same point, and the WO3 recovery increases to 73% when the WO3 grade of rough concentrate is 30%. In hydrometallurgical operation, the leaching rate of WO3 is above 94%, decomposing tungsten mineralsa effectively and realizing the recycle of sodium hydroxide in the high alkali tungsten solution. The economic feasibility analysis point out this technology is recommended to be adopted when the WO3 grade of bulk concentrate is 30%, and the economic benefit of the new technology will reach the break-even point when the price of metallurgical products WO3 reaches 95,000 RMB/t.

Autoclave leaching of boehmite-kaolinite bauxites by hydrochloric acid

2016 ◽  
Vol 7 (2) ◽  
pp. 272-277 ◽  
Author(s):  
D. V. Valeev ◽  
Yu. A. Lainer ◽  
V. I. Pak
Keyword(s):  
Hydrochloric Acid ◽  
Autoclave Leaching
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