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Method for separating lead and antimony from lead antimony crude alloy

A crude alloy and lead separation technology is applied in the field of separation and extraction of lead-antimony alloys, which can solve the problems of inability to form industrialization, low lead-antimony direct yield, and difficulty in removing impurities, etc., so as to improve the quality of crude lead and improve furnace Bed capacity, effect of less smelting flue gas

Inactive Publication Date: 2003-03-26
广西华锡集团股份有限公司
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AI Technical Summary

Problems solved by technology

Although these processes have their own characteristics, except for the most primitive pyrotechnic process, other processes cannot be industrialized due to various factors.
However, in the fire process, in the process of high-temperature blowing of lead-antimony crude alloy to produce crude lead and antimony-oxygen smelting and refining to produce high-lead-antimony ingot or No. 2 antimony ingot, there are large equipment investment, long production cycle, low bed capacity, high cost, Crude lead has low lead content, high copper content, poor quality of antimony and oxygen, difficulty in impurity removal, low yield of lead and antimony, high labor intensity, poor production environment, etc.

Method used

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  • Method for separating lead and antimony from lead antimony crude alloy
  • Method for separating lead and antimony from lead antimony crude alloy
  • Method for separating lead and antimony from lead antimony crude alloy

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Embodiment Construction

[0025] (1) Lead-antimony crude alloy undergoes one-step or two-step smelting to produce crude lead

[0026] The lead-antimony crude alloy is melted in one or two steps in a melting furnace to produce crude lead containing 78-84% lead suitable for electrolysis requirements and secondary melting slag that can be used to remove impurities and produce high-lead-antimony ingots and energy Combined with the secondary melting slag, blowing, smelting and refining produce the primary melting slag of No. 2 antimony ingot.

[0027] The specific implementation steps are as follows:

[0028] One-step smelting is to raise the temperature of the smelting furnace to 750°C in the high-temperature smelting zone, and then put the crude alloy containing Pb≥62% lead and antimony into the furnace from the feeding port (4). The melting zone is 350-440°C for 80-120 minutes per furnace, and the melting rate is 15-23 kg / min. After the material in the furnace is completely melted, most of the molten sl...

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Abstract

The invention is a method of liquating plumbum and stibium from their rough alloy. Its character lies in that the rough alloy adopt the liquating furnace to make one or two-step liquation to produce rough plumbum. The one-step liquation is making the rough alloy of Pb>=62% further liquate to produce rough Pb of Pb<=78% adapted to electrolysis requirement. The two-step liquation is as follows: placing the alloy of 50%= C22B 13 / 00 C22B 30 / 02 4 5 1 2002 / 9 / 16 1405341 2003 / 3 / 26 1203198 2005 / 5 / 25 2005 / 5 / 25 2005 / 5 / 25 Huaxi Group LLC, Liuzhou Guangxi 545006 Wei Yuanji Lu Yongzhuang Wei Mingfang huang yongjiao 45104 The Patent Service Centre of Guangxi Zhuang Autonomous Region Shaoma Village, Xinghu Road, the City of Nanning, Guangxi Zhuang Autonomous Region 530002

Description

(1) Technical field [0001] The invention relates to a nonferrous metal pyrometallurgy method, which is especially suitable for the separation and extraction of lead-antimony alloys. (two), background technology [0002] Brittle-Pb-Sb ore is a rare polymetallic composite sulfide ore in the world. It has not been found in other places except Dachang ore field in my country and a certain mine in Australia. Although the brittle sulfur-lead-antimony ore is only an auxiliary recovery product of the tin ore beneficiation process of the main body of the Dachang ore field, its reserves rank first in the country. Due to the complex composition of the brittle sulfur-lead-antimony concentrate, it has caused great difficulties in smelting. Since the early 1960s, many domestic research institutes and production units have conducted a lot of research work on the selection of smelting methods for this mine. From the initial concentrate boiling roasting-calcining smel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B13/00C22B30/02
Inventor 韦元基陆永壮韦明芳宾仕华陈家荣欧家才何勇
Owner 广西华锡集团股份有限公司
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