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Method for preparing enriched precious lead from precious antimony

A technology of rich and noble lead and electrolytic lead, applied in the direction of improving process efficiency, etc., can solve the problems of cumbersome process, high antimony content, and limited application range, and achieve the effect of short process flow

Active Publication Date: 2018-08-28
广西万仕智稀贵金属科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high antimony content of this kind of rich antimony, it is common to use the chlorination method to extract precious metals in China. The process is cumbersome and the application range is not wide, which hinders the development of blast furnace treatment of antimony gold concentrate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The weight percent of the main chemical components of the treated precious antimony raw material is: Sb72.73%, Pb2.06%, Cu1.34%, Fe12.36%, Au content is 158.00g / t, Ag content is 2321.50g / t, It is processed through the following steps:

[0016] (1) Noble antimony smelting: According to the size of the reverberatory furnace, the noble antimony raw materials are added to the reverberatory furnace in batches, and the slag is removed after being filled; the reverberatory furnace is a commonly used antimony reverberatory furnace with a size of 12m 2 , the particle size of the noble antimony raw material is 50-100mm, and the weight added in each batch is 1.5-2.0t;

[0017] (2) Noble antimony impurity removal: add quartz sand to remove iron, the addition of the quartz sand is 2 to 4 times the total amount of iron impurities, and the iron content after the impurity removal is required to be <0.01%;

[0018] (3) Precious antimony ash blowing: After the iron content test meets th...

Embodiment 2

[0022] The weight percent of the main chemical components of the processed precious antimony raw material is: Sb65.38%, Pb2.60%, Cu1.88%, Fe21.54%, Au content is 356.00g / t, Ag content is 4321.15g / t, It is processed through the following steps:

[0023] (1) Noble antimony smelting: According to the size of the reverberatory furnace, the noble antimony raw materials are added into the reverberatory furnace in batches, and the slag is removed after filling up; the reverberatory furnace is a commonly used antimony reverberatory furnace with a size of 16m 2 , the particle size of the noble antimony raw material is 50-100mm, and the weight added in each batch is 1.5-2.0t;

[0024] (2) Noble antimony impurity removal: add quartz sand to remove iron, the addition of the quartz sand is 2 to 4 times the total amount of iron impurities, and the iron content after the impurity removal is required to be <0.01%;

[0025] (3) Precious antimony ash blowing: After the iron content test meets ...

Embodiment 3

[0029] The weight percent of the main chemical components of the processed precious antimony raw material is: Sb67.39%, Pb2.48%, Cu1.27%, Fe20.52%, Au content is 326.58g / t, Ag content is 3988.14g / t, It is processed through the following steps:

[0030] (1) Noble antimony smelting: According to the size of the reverberatory furnace, the noble antimony raw materials are added to the reverberatory furnace in batches, and the slag is removed after filling up; the reverberatory furnace is a commonly used antimony reverberatory furnace with a size of 16m 2 , the particle size of the noble antimony raw material is 50-100mm, and the weight added in each batch is 1.5-2.0t;

[0031] (2) Noble antimony impurity removal: add quartz sand to remove iron, the addition of the quartz sand is 2 to 4 times the total amount of iron impurities, and the iron content after the impurity removal is required to be <0.01%;

[0032] (3) Precious antimony ash blowing: After the iron content test meets th...

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Abstract

The invention discloses a method for preparing enriched precious lead from precious antimony. The method comprises the following steps: (1) smelting precious antimony; (2) removing impurities from precious antimony; (3) performing cupellation on the precious antimony; (4) adding lead and further performing cupellation. The method has a short technological process, and the whole process only needs8-12 days; enriched precious lead, not precious antimony, is prepared from precious antimony, and the recovery rate can reach 99% and above; the enriched precious lead is more convenient to smelt thanprecious antimony; the precious metal can be extracted by multiple ways such as electrolysis; therefore, the method is worthy of large-range popularization.

Description

【Technical field】 [0001] The invention belongs to the technical field of metal smelting, and in particular relates to a method for preparing rich and noble lead from noble antimony. 【Background technique】 [0002] According to the fire antimony smelting process, in the process of using blast furnace to treat antimony-gold concentrate, rough antimony is often used to capture gold, silver and other precious metals in the raw materials, so as to obtain precious antimony containing antimony, gold, silver and other impurities. At present, reverberatory furnaces are usually used to treat noble antimony to improve the taste of gold and silver and obtain rich antimony. However, due to the high antimony content of this kind of rich and precious antimony, it is common to use the chlorination method to extract precious metals in China. The process is cumbersome and the application range is not wide, which hinders the development of blast furnace processing antimony gold concentrate. ...

Claims

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Application Information

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IPC IPC(8): C22B5/12C22B5/04C22B13/02
CPCC22B5/04C22B5/12C22B13/02Y02P10/20
Inventor 姚广生赵俊华温勇光田毕宏
Owner 广西万仕智稀贵金属科技有限公司