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Method for separating molybdenum and bismuth sulfide minerals

A separation method and mineral technology, applied in the direction of solid separation, flotation, etc., can solve problems such as inconvenient operation, achieve the effects of improving production conditions, less consumption, and reducing environmental pollution

Active Publication Date: 2009-09-16
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 should wear protective clothing and a protective mask, the operation is very inconvenient

Method used

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  • Method for separating molybdenum and bismuth sulfide minerals

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Experimental program
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Effect test

Embodiment 1

[0027] Mineral Type 1: The molybdenum-bismuth mixed concentrate is obtained after the raw ore undergoes molybdenum-bismuth mixed flotation, containing 7.54% molybdenum and 15.35% bismuth. The molybdenum-bismuth mixed concentrate is added in the order of water glass, new inhibitor, and kerosene respectively. And stirring, after one roughing, three times of beneficiation, and two sweepings, the molybdenum concentrate containing 46.12% molybdenum and 0.63% bismuth can be obtained. (The water glass consumption of adding is 620g / t, and the consumption of the new inhibitor of adding is 600g / t, and the kerosene consumption of adding is 120g / t.)

Embodiment 2

[0029] Mineral type 2, the molybdenum-bismuth mixed concentrate is obtained after the raw ore undergoes molybdenum-bismuth mixed flotation, containing 8.36% molybdenum and 12.55% bismuth. And stirring, after one roughing, three times of beneficiation, and two sweepings, the molybdenum concentrate containing 45.82% molybdenum and 0.53% bismuth can be obtained. (The water glass consumption of adding is 800g / t, and the consumption of the new inhibitor of adding is 650g / t, and the kerosene consumption of adding is 130g / t.)

Embodiment 3

[0031] Mineral Type 3: The molybdenum-bismuth mixed concentrate is obtained after molybdenum-bismuth mixed flotation, which contains 9.59% molybdenum and 15.05% bismuth. The molybdenum-bismuth mixed concentrate is added in the order of water glass, new inhibitor, and kerosene respectively. And stirring, after one roughing, three times of beneficiation, and two sweepings, the molybdenum concentrate containing 46.52% molybdenum and 0.68% bismuth can be obtained. (The water glass consumption of adding is 850g / t, and the consumption of the new inhibitor of adding is 700g / t, and the kerosene consumption of adding is 130g / t.)

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Abstract

A method for separating molybdenum and bismuth sulfide collective concentrate minerals relates to a mineral separation process, in particular to a method for separating the molybdenum and bismuth sulfide collective concentrate minerals to obtain molybdenum concentrate and bismuth concentrate. The invention is characterized in that the floatation separation process adopts bi-hydroxyethyl group amino sodium formate or bi-hydroxyethyl group amino potassium formate as the inhibitor of the bismuth sulfide mineral. The method of the invention efficiently overcomes the defects of large use amount ofcommon sodium sulfide, bad operation environment and heavy pollution, and has the characteristics of convenient adding, safe usage and the like. The invention provides an effective method featuring small medicament use amount, convenient usage and little environment pollution for the separation of molybdenum and bismuth sulfide minerals.

Description

technical field [0001] The invention discloses a method for separating molybdenum-bismuth sulfide minerals, which relates to a mineral separation process, in particular to a method for separating molybdenum-bismuth sulfide mixed concentrates to obtain molybdenum concentrates and bismuth concentrates. Background technique [0002] At present, the separation process of molybdenum-bismuth sulfide minerals usually adopts flotation separation method, and sodium sulfide is used as the inhibitor of bismuth sulfide minerals in the flotation process. The dosage of sodium sulfide as the inhibitor of bismuth sulfide minerals generally needs to be about 30kg / t. [0003] The shortcoming of above-mentioned prior art is: [0004] Sodium sulfide is used in a large amount; sodium sulfide is a strong alkali and has strong corrosiveness, and it will cause burns when it touches the skin or hair; the aqueous solution of sodium sulfide will emit unpleasant poisonous gas after a certain period of...

Claims

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Application Information

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IPC IPC(8): B03D1/004B03D101/06B03D103/02
Inventor 陈定洲周高云陈述一
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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