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A carbon inhibitor and its application in the flotation of molybdenum and nickel from high carbon molybdenum-nickel ore

A technology of inhibitor and molybdenum-nickel ore, which is applied in flotation, solid separation, etc., can solve the problems of large dosage of molybdenum-nickel flotation agents, complex ore properties, and long flotation time, etc., and achieves easy industrial implementation and large-scale The effects of promotion, simple process and high sorting efficiency

Active Publication Date: 2016-08-31
纳雍县汇丰矿业有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] High-carbon molybdenum-nickel ore has high carbon content, complex ore properties, and very difficult ore dressing. Currently, the beneficiation and smelting process for recycling high-carbon molybdenum-nickel ore is manual selection, roasting, and alkali leaching to recover molybdenum to obtain ammonium molybdate. The efficiency is low, and only high-grade molybdenum ore containing more than 3% molybdenum can be recovered
Low-grade molybdenum ore contains less than 1.5% molybdenum. The traditional dressing and smelting process loses money and cannot be recycled. The only way to enrich the low-grade high-carbon molybdenum-nickel ore to more than 3% is through ore dressing for smelting and recycling.
[0004] In the beneficiation process of high-carbon molybdenum-nickel ore, due to the adsorption of carbonaceous substances, the dosage of molybdenum-nickel flotation reagents will increase first, which is more than twice the conventional dosage of flotation reagents. increase; secondly, in the beneficiation process, the carbonaceous matter will desorb the flotation agent adsorbed on the surface of the target mineral, and the flotation agent must be added during the beneficiation process, resulting in a decrease in the concentrate grade and an increase in the amount of beneficiation agents; thirdly, containing The carbonaceous surface of mechanical carbon is extremely hydrophobic, which is difficult to be suppressed, resulting in lower grades of molybdenum and nickel concentrates, higher silicon and aluminum contents, and increased smelting costs
[0005] The ore properties of high-carbon molybdenum-nickel ore are complex, and flotation is extremely difficult. There are few researches on flotation of high-carbon molybdenum-nickel ore at home and abroad. The method of selecting nickel and molybdenum, the method takes a long time for flotation, and the beneficiation index is poor

Method used

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  • A carbon inhibitor and its application in the flotation of molybdenum and nickel from high carbon molybdenum-nickel ore
  • A carbon inhibitor and its application in the flotation of molybdenum and nickel from high carbon molybdenum-nickel ore

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Effect test

Embodiment 1

[0016] The carbon content of high-carbon molybdenum-nickel ore in a certain place in Cili, Hunan Province is about 6%. It has good floatability and strong adsorption, and the existence of carbonaceous matter greatly affects the flotation of the mine.

[0017] (1) Grinding: Grinding high-carbon molybdenum-nickel ore until the particle size is less than 200 mesh accounts for 72%;

[0018] (2) Molybdenum-nickel flotation: Molybdenum concentrate and molybdenum-nickel flotation tailings are obtained after 1 molybdenum roughing, 3 molybdenum-nickel beneficiation and 2 molybdenum-nickel scavenging; gram of sodium carbonate, 1500 grams of water glass, 240 grams of carbonaceous inhibitors, 90 grams of kerosene, and 96 grams of MIBC. In molybdenum concentration, 60 g / t, 30 g / t and 10 g / t of carbonaceous inhibitors are added to the selection 1, selection 2 and selection 3 respectively; kerosene is added to the molybdenum and nickel selection 1 and scavenging 2 respectively 36 g / t and 1...

Embodiment 2

[0025] The carbon content of high-carbon molybdenum-nickel ore in a certain place in Guizhou is about 10%. The minerals are closely combined and the carbonaceous content is high.

[0026] (1) Grinding: Grinding high-carbon molybdenum-nickel ore until the particle size is less than 200 mesh accounts for 85%;

[0027] (2) Molybdenum-nickel flotation: Molybdenum-nickel concentrate and molybdenum-nickel flotation tailings are obtained after 2 times of molybdenum-nickel roughing, 3 times of molybdenum-nickel concentration and 2 times of molybdenum sweeping; 600 grams of sodium carbonate, 1800 grams of water glass, 320 grams of carbonaceous substance inhibitors, 120 grams of kerosene, 120 grams of MIBC, and 60 grams of kerosene and 40 grams of MIBC for each ton of raw ore of molybdenum and nickel. In molybdenum and nickel selection, selection 1, selection 2 and selection 3 add carbonaceous inhibitors 80 g / t, 20 g / t and 10 g / t respectively; molybdenum and nickel sweep 1 and sweep 2 ...

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Abstract

The invention discloses a carbonaceous substance inhibitor and its application in the flotation of molybdenum-nickel ore with high carbon molybdenum-nickel ore. The inhibitor contains the following components in parts by weight: 40-120 parts of acid orange, 20-60 parts Parts of ethyl tert-butyl ether and 60 to 180 parts of CMC. The invention also discloses a flotation method using the inhibitor, the flotation method includes three steps of grinding, molybdenum flotation and nickel flotation, each of the molybdenum flotation and nickel flotation undergoes 1 to 2 roughing , 2 to 4 selections and 1 to 3 sweeps. Finally, molybdenum concentrate and nickel concentrate are obtained. Compared with the prior art, the new inhibitor and its flotation method of the present invention have high separation efficiency, can effectively realize the separation of molybdenum-nickel minerals and carbonaceous substances, improve the grade of molybdenum and nickel concentrates, and have low ore dressing cost, The technological process is simple and reliable, and the operation is easy.

Description

technical field [0001] The invention relates to a mineral flotation separation method, in particular to a method for flotation high-carbon nickel-molybdenum ore. Background technique [0002] High-carbon molybdenum-nickel ore is a unique layered molybdenum deposit discovered in the Lower Cambrian black shale in the ancient basin along the southern Yangtze River in the 1960s. It is different from traditional nickel sulfide and molybdenum sulfide ores. The main feature of high-carbon molybdenum-nickel ore is high carbon content. In addition to containing molybdenum, it contains associated rare and precious metals such as vanadium, phosphorus, copper, lead, zinc, uranium, platinum and palladium. It has very high development and utilization value, and high carbon molybdenum Nickel ore reserves are very rich, mainly distributed in Hunan, Guizhou, Yunnan and other places. Only the high-carbon molybdenum-nickel ore reserves in Xiangxi, Hunan Province are more than 10 million tons. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03D1/016B03D101/06
Inventor 李晓东韦可利陈代雄牟邦杨建文董艳红祁忠旭
Owner 纳雍县汇丰矿业有限公司
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