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Process for the separation of molybdenum-bismuth mineral

A separation method and mineral technology, applied in solid separation, flotation and other directions, can solve problems such as inconvenient operation, and achieve the effects of reducing pollution, less dosage, and improving production conditions

Inactive Publication Date: 2008-08-20
BEIJING GENERAL RES INST OF MINING & METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using sodium sulfide, the operator must wear protective clothing and a protective mask, which is inconvenient to operate

Method used

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  • Process for the separation of molybdenum-bismuth mineral

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Experimental program
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Effect test

specific Embodiment 1

[0019] Mineral Type 1: The raw ore is subjected to molybdenum-bismuth mixed flotation to obtain molybdenum-bismuth mixed concentrate, containing 10.34% molybdenum and 18.25% bismuth. Add BK510, sodium silicate, and kerosene to the molybdenum-bismuth mixed concentrate, and after one roughing, three-times beneficiation, and two sweepings, the molybdenum concentrate containing 46.32% molybdenum and 0.67% bismuth can be obtained.

specific Embodiment 2

[0020] Mineral Type 2: The molybdenum-bismuth mixed concentrate is obtained after the raw ore undergoes molybdenum-bismuth mixed flotation, containing 5.14% molybdenum and 8.32% bismuth. Add BK510, sodium silicate, and kerosene to the molybdenum-bismuth mixed concentrate, and after one roughing, three-times beneficiation, and two sweepings, the molybdenum concentrate containing 45.42% molybdenum and 0.53% bismuth can be obtained.

specific Embodiment 3

[0021] The third type of ore is molybdenum-bismuth mixed concentrate, which contains 16.54% molybdenum and 7.75% bismuth. Add BK510, sodium silicate, and kerosene to the molybdenum-bismuth mixed concentrate, and after one roughing, three-times beneficiation, and two sweepings, the molybdenum concentrate containing 48.52% molybdenum and 0.43% bismuth can be obtained.

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Abstract

The invention discloses a separation method of koechlinite mineral, which adopts BK510 reagent as inhibitor; wherein, the BK510 reagent comprises a component of sodium thioglycolate; BK510 reagent, econolite and coal oil are added to the koechlinite bulk concentrate and stirred; roughing of one time, choiceness of three times and scavenging of two times are processed and the molybdenum concentrate with molybdenum above 45% and bismuth below 0.70% is acquired; the BK510 reagent has the advantages of resolving the problems of large amount of sodium sulfide, abominable operating environment and serious pollution, convenient addition and safe use. The separation method of koechlinite mineral has the advantages of low amount of inhibitor, reducing pollution, and improving the production condition.

Description

technical field [0001] The invention relates to an ore dressing and separation process, in particular to a method for separating molybdenum-bismuth minerals. Background technique [0002] In the existing mineral processing industry, sodium sulfide is generally used as an inhibitor for the separation of molybdenum-bismuth sulfide minerals. When sodium sulfide is used as the inhibitor of molybdenum-bismuth minerals, generally 30kg / t of ore is required. [0003] The shortcoming of above-mentioned prior art is: [0004] The amount of sodium sulfide is large; sodium sulfide is a strong base, highly corrosive, and will cause burns when it touches the skin and hair; the aqueous solution of sodium sulfide emits a pungent odor, which is mainly due to H 2 S gas is continuously released from the water. After being absorbed in a large amount, people will feel nausea and vomiting immediately, and even have difficulty breathing, suffocation, etc., resulting in a strong sense of poisonin...

Claims

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Application Information

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IPC IPC(8): B03D1/012B03D1/00B03D101/06B03D103/04
Inventor 王中明程新朝尚衍波杨仕勇肖婉琴肖巧斌于传兵
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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