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One-step technique for separating antimony from gold and lead in gold-containing antimony oxide smoke dust

An antimony oxide and process technology, applied in the field of gold smelting, can solve the problems of loss of precious metals, which have not yet appeared, and achieve the effects of efficient recovery, reduced incorporation of impurities, and good reduction effect.

Active Publication Date: 2014-10-29
HUNAN CHENZHOU MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the prior art, there are simple antimony smelting process and the process of separating lead in single antimony oxide by using lead remover, but there is no method for treating gold-containing antimony oxide and simultaneously separating antimony, gold and lead in one step, resulting in massive loss of precious metals

Method used

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  • One-step technique for separating antimony from gold and lead in gold-containing antimony oxide smoke dust

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Add anthracite with 8% soot mass to gold-containing antimony oxide fume containing 9.0g / t of gold, 1.89 mass% of lead, and 71.2 mass% of antimony to carry out reduction smelting, control the reduction smelting temperature to 1100-1150°C, Finally remove the scum, use the blower to blow air into the blowing, control the flow of blowing to 185m 3 / min, and the blowing temperature is controlled to be 700-750°C, the concentration ratio is controlled to be 7%, and the output contains 0.33g / t of gold, 0.37% by mass of lead, 74.5% by mass of antimony, and 85g / t of gold. t. High lead and noble antimony containing 11.4% by mass of lead and 85.3% by mass of antimony.

Embodiment 2

[0039] Add anthracite with a mass of soot of 11% to gold-containing antimony oxide fume containing 13.33g / t of gold, 2.93% by mass of lead, and 68.9% by mass of antimony to carry out reduction smelting, control the reduction smelting temperature to 1100-1150°C, Finally, remove the scum, use the fan to blow air into the blowing, and control the blowing flow to 155m 3 / min, and the blowing temperature is controlled to be 750-850°C, the concentration ratio is controlled to be 10%, and the output contains 0.33g / t of gold, 0.32% by mass of lead, and 73.6% by mass of antimony, and 108g / t of gold. t. High lead and noble antimony containing 13.8% by mass of lead and 84.1% by mass of antimony.

Embodiment 3

[0041] Add 10% anthracite to gold-containing antimony oxide containing 21.33g / t of gold, 1.02 mass% of lead, and 72.5 mass% of antimony for reduction smelting, control the reduction smelting temperature to 1100-1150°C, and remove scum after reduction smelting , use the blower to blow air into the blowing, control the flow of blowing to 200m 3 / min, and the blowing temperature is controlled to be 700-750°C, the concentration ratio is controlled to be 8%, and antimony oxide containing 0.50g / t of gold, 0.34% by mass of lead, and 76.8% by mass of antimony is produced, and 142g / t of gold is produced. t. High lead and noble antimony containing 9.6% by mass of lead and 87.3% by mass of antimony.

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Abstract

The invention discloses a one-step technique for separating antimony from gold and lead in gold-containing antimony oxide smoke dust, which comprises the following steps: adding a reducer into antimony oxide smoke dust with the gold content of 30g / t, carrying out reduction smelting at 1000-1250 DEG C, removing scum, blowing air or oxygen from the side of a reverberatory furnace at the rate of 50-250 m<3> / minute, converting at the converting temperature of 700-700 DEG C so that the antimony is oxidated and volatilized in the form of antimony oxide and the gold and lead are settled in a concentrated bottom water antimony solution, and obtaining the antimony oxide (in which the gold content is at most 0.5g / t, the lead content is at most 0.5 wt% and the antimony content is at least 73 wt%) and the bottom water antimony solution (in which the gold content is 80-150g / t, the lead content is 8-15 wt% and the antimony content is 84-89 wt%), thereby implementing one-step separation of the antimony from the gold and lead. The technique implements one-step separation of gold and lead in the antimony smelting process, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of gold smelting, and in particular relates to a process for one-step separation of antimony, gold and lead from gold-containing antimony oxide dust. Background technique [0002] Metal antimony and gold are important metals. They are not only mainly used in metallurgical manufacture of alloys, currency storage and other aspects, but also widely used in other aspects such as chemical industry and military affairs. With the shortage of mineral resources, it is necessary to make rational and comprehensive utilization of antimony-gold mineral resources, which can not only create profits for enterprises, but also create wealth for the country. [0003] At present, in the prior art, there are simple antimony smelting process and the process of separating lead in a single antimony oxide by using a lead removal agent, but there is no method for treating gold-containing antimony oxide and simultaneously separating antimony, g...

Claims

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Application Information

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IPC IPC(8): C22B7/02C22B11/02C22B13/02C22B30/02
CPCY02P10/20
Inventor 李光裕杨雅历邝江华张忠国肖世大王国辉韩旭梁志军刘浩
Owner HUNAN CHENZHOU MINING CO LTD
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