Process for preliminarily separating antimony from gold in antimony-gold material

A technology for preliminary separation and material, applied in the field of gold metallurgy, can solve the problems of unreported antimony-gold symbiotic ore process and other problems, and achieve the effects of high recovery rate, large processing capacity and strong adaptability

Active Publication Date: 2011-07-27
HUNAN CHENZHOU MINING CO LTD
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  • Process for preliminarily separating antimony from gold in antimony-gold material

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Embodiment 1

[0024] The antimony-gold raw material below 5mm is pressed into pellets and dried, then mixed with 16% iron ore and 7.3% limestone, the coke ratio is 28%. 43Hz, feed interval time is 13min, material column height is 750-800mm before feeding. The reaction temperature is 1200°C, the reaction time is 4 hours, and the temperature of the front bed reverberatory furnace is 1200°C. The produced antimony oxide contains 77.4% antimony, and the precious antimony contains 816.13g / t gold.

Embodiment 2

[0026] After the antimony gold raw material below 5mm is pressed into pellets and dried, it is mixed with 16% iron ore, 6.6% limestone, and the coke ratio is 25.3%. 42Hz, feed interval time is 14min, material column height is 800-850mm before feeding. The reaction temperature is 1200°C, the reaction time is 4 hours, and the temperature of the front bed reverberatory furnace is 1200°C. The produced antimony oxide contains 79.8% antimony, and the precious antimony contains 843.87g / t gold.

Embodiment 3

[0028] After pressing antimony gold raw materials below 5mm into pellets and drying them, add 17.3% iron ore, 4% limestone, and the coke ratio is 28%. The gold trapping agent put into the front bed reverberatory furnace is 345kg gross antimony, and the blower frequency is 42Hz, feed interval time is 13min, material column height is 800-850mm before feeding. The reaction temperature is 1200°C, the reaction time is 4 hours, and the temperature of the front bed reverberatory furnace is 1200°C. The produced antimony oxide contains 79.8% antimony, and the precious antimony contains 843.87g / t gold.

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Abstract

The invention discloses a process for preliminarily separating antimony from gold in an antimony-gold material, comprising the steps of: adding a percentage of lime in the antimony-gold material with diameter of less than 5mm and pressing the antimony-gold material to be spherical; drying the antimony-gold material and inputting blocky antimony-gold material in a blast furnace; adding iron ore, lime stone and coke into the blocky antimony-gold material, and volatilizing and smelting the blocky antimony-gold material with the blast furnace, wherein most of the antimony is oxidized into antimony oxide including 75-78% of antimony to be volatilized and a small part of the antimony enters an external crucible through throat port with other sulfides and gold to be separated so that waste slag,antimony matte and expensive antimony including 800-1000g/t of gold grade are obtained and the preliminary separation of the antimony and the gold is realized. By means of the process, the problem that the antimony and the gold in the antimony-gold material cannot be separated perfectly is solved; and production proves that both the direct yields of the antimony and the gold are above 90%.

Description

technical field [0001] The invention belongs to the field of gold and metallurgy and relates to a process for the preliminary separation of antimony and gold in an antimony-gold symbiotic ore. Background technique [0002] Metal antimony and gold are important metals. They are not only mainly used in metallurgical manufacture of alloys, currency storage, etc., but also widely used in other aspects such as chemical industry and military affairs. With the shortage of mineral resources, rational and comprehensive utilization of antimony-gold mineral resources can not only create profits for enterprises, but also create wealth for the country. [0003] At present, there is a domestic process of using a blast furnace to treat a single antimony ore. During the blast furnace smelting process, the antimony sulfide in the antimony-containing material volatilizes and oxidizes, and at the same time, the gangue slag is released from the furnace hearth, and the main product is antimony ...

Claims

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Application Information

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IPC IPC(8): C22B11/02C22B30/02
Inventor 崔文杨雅历张忠国邝江华
Owner HUNAN CHENZHOU MINING CO LTD
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