Processing of Sb-Pb-Sn-Containing Materials

KnE Materials Science ◽

10.18502/kms.v6i1.8070 ◽

2020 ◽

Author(s):

Konstantin L. Timofeev ◽

Alexey A. Korolev ◽

Gennady I. Maltsev

Keyword(s):

Vacuum Distillation ◽

Smelting Furnace ◽

Tin Oxides ◽

Lead Production ◽

Lead Bullion ◽

Tin Slag ◽

Oxidation Refining

During the processing of lead containing products and polymetallic alloys the recovery of tin and antimony from technology of lead production is carried out by oxidation refining of decopperized lead with rich oxides (Sn, Sb ≥ 20%).Tin oxides are melted in a short-drum furnaces to lead bullion (> 96% Pb) and tin-rich (> 20% Sn) slag. The slag is melted in an ore-smelting furnace to obtain a Sn-Pb alloy of next composition, %: 56.1 Sn, 18.2 Pb, 14.6 Sb, 6.9 As, which is refined by vacuum distillation with production of rough tin (Sn ≥ 90%). The additional profit of rough tin obtainment (∼310 tons/year), compared with sales of tin slag, is about ∼1.3 million $/year. Keywords: lead, tin, antimony, melting, vacuum distillation

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The influence of technological parameters of smelting on the durability of the lining of an arc steel-smelting furnace under the conditions of Ural Steel JSC

NOVYE OGNEUPORY (NEW REFRACTORIES) ◽

10.17073/1683-4518-2019-7-3-7 ◽

2019 ◽

pp. 3-7

Author(s):

E. A. Shevchenko ◽

A. N. Shapovalov ◽

R. R. Dema ◽

A. V. Koldin

Keyword(s):

Service Life ◽

Steel Production ◽

Smelting Furnace ◽

Arc Furnace ◽

Technological Parameters ◽

Steel Smelting ◽

Steel Smelting Arc Furnace ◽

The Cost ◽

Lining Resistance ◽

Oxidation Refining

The results of the study of the influence of the main technological parameters of steel smelting (composition of charge materials, duration of smelting and furnace downtime, oxidation refining intensity and metal temperature at the outlet) on the lining resistance of a small arch of a steel-smelting arc furnace in the Ural Steel JSC are presented. Recommendations have been developed for optimizing the technological and energetic regimes of steel smelting, which make it possible to prolong the service life of the lining of a small vault and reduce the cost of steel production. Ill. 5. Ref. 20. Tab. 1.

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Studying Kinetics of Arsenic Recovery from Copper Dross by Alkaline Sulfide Leaching

Materials Science Forum ◽

10.4028/www.scientific.net/msf.946.547 ◽

2019 ◽

Vol 946 ◽

pp. 547-551

Author(s):

A.A. Nabiyeva ◽

N.A. Kulenova ◽

S.V. Mamyachenkov

Keyword(s):

Arsenic Removal ◽

Precious Metals ◽

Production Cycle ◽

Arsenic Content ◽

Destructive Effect ◽

Lead Production ◽

Lead Bullion ◽

Removal Of Arsenic ◽

Kinetics Of ◽

Alkaline Sulfide

Copper dross are produced by rough decopperizing of blast furnace lead bullion. During liquation separation of copper dross from lead bullion most of arsenic and copper are concentrated in copper dross, arsenic content is approximately 4% As. Currently the processes for arsenic recovery from copper dross are understudied. In this work the focus is given to studying kinetics of the process for recovering arsenic from copper dross by alkaline-sulfide leaching. Alkaline sulfide leaching allows carrying out selective removal of arsenic into solution, keeping at this non-ferrous and precious metals in leaching residue. The studied method of alkaline sulfide leaching of copper dross provides backgrounds for developing technology that would allow processing of copper dross with selective arsenic removal from lead production cycle. By minimizing circulation of this harmful impurity in lead production it is possible to lessen destructive effect of its aggressive compounds on smelting-units refractory. Kinetics of alkaline sulfide leaching of copper dross was understudied up to date. This work is an attempt to fill the gap.

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