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Preparation method of sulfide mineral collector

A collector and sulfide ore technology, applied in solid separation, flotation, etc., can solve the problems of polluted environment ore dressing cost, unsatisfactory collection effect, weak xanthate collection ability, etc., and achieve good low temperature resistance , good mud resistance, and the effect of reducing production costs

Inactive Publication Date: 2009-12-23
广西华锡集团股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the mixed flotation of sulfide ores at home and abroad generally adopts sulfuric acid or copper sulfate to activate first, and then adds xanthate for flotation collection. The flotation recovery rate of sulfide ores is between 70% and 85%, and the collection effect is not very good. Ideal, especially for polymetallic sulfide ores associated with oxidized minerals and sulfide minerals and oxidized minerals are suitable for re-election, such as tin-tungsten-containing polymetallic sulfide ores, first mixed flotation sulfide ores and then re-selected oxidized minerals, due to the capture of xanthate The collection capacity is not strong, it is necessary to add a large amount of sulfuric acid or copper sulfate to activate the sulfide minerals, and then collect them
Nevertheless, some sulfide minerals are still not recovered, causing the sulfide minerals to enter the gravity separation process of oxidized minerals, which in turn affects the concentrate grade and recovery rate of oxidized minerals
In addition, for some low-grade precious metal minerals with sulfur-containing minerals as the carrier, sulfuric acid or copper sulfate is used for activation and then xanthate is used for harvesting, which not only pollutes the environment but also has high beneficiation costs, which affects the economic benefits of the beneficiation plant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Present embodiment is a kind of preparation method of sulfide ore collector, comprises the steps:

[0014] Take sodium sulfide by molar ratio: phosphoric acid=2: 3, put into gas generator, collect the gas that produces, pass in the autoclave that 10 C fatty alcohols and thorium oxide catalyst are housed, the mol ratio of alcohol and gas= 1:1.2, under the conditions of pressure 12Mpa and temperature 300°C, react for 6 hours to obtain a liquid mixture, distill and collect fractions between 180 and 300°C under normal pressure according to different carbon numbers, and measure the corresponding refractive index to obtain A transparent, colorless, viscous liquid substance with a special odor is a collector of sulfide minerals.

Embodiment 2

[0016] Take sodium sulfide by molar ratio: phosphoric acid=1: 2, put into gas generator, collect the gas that produces, pass in the autoclave that 13 C aliphatic alcohols and strongly acidic cationic resin catalyst are housed, the mole of alcohol and gas Ratio = 1:1.25, react at a pressure of 15Mpa and a temperature of 450°C for 8 hours to obtain a liquid mixture, collect fractions between 180 and 300°C by distillation under normal pressure according to different carbon numbers, and measure the corresponding refractive index after passing the test , Obtain a transparent, colorless, viscous liquid substance with a special odor, which is a collector of sulfide minerals.

Embodiment 3

[0018] This embodiment is an application example of the collector of sulfide minerals prepared in Example 1.

[0019] 1. Mineral raw materials

[0020] The raw ore has a lead grade of 0.7%, a zinc grade of 1.34%, and a tin polymetallic sulfide ore with a sulfur grade of 8.65%.

[0021] 2. Flotation process: 1 roughing, 2 sweeping.

[0022] 3. Pharmaceutical system and operating conditions:

[0023] The collector is 80g / t, No. 2 oil 100g / t. During flotation, after adjusting the pH value of the slurry to 8-9.5, the sulfide ore collector is directly added to adjust the slurry, and the sulfide ore that has been subjected to slurry adjustment is put into a flotation machine for aerated flotation to obtain a concentrate.

[0024] 4. Flotation index

[0025] The zinc recovery rate reached 92.57%, the concentrate grade was 8.87%, the tailings zinc content was 0.15%, the lead recovery rate reached 93.75%, the concentrate grade was 2.69%, the tailings lead content was 0.06%, and the...

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Abstract

The invention relates to a preparation method of sulfide mineral collector. The method comprises the following steps: sodium sulfide and phosphoric acid are weighed according to the mol ratio of 2 to 3:3 to 6 and added into a gas generator; generated gas is collected and charged into a high-pressure reactor charged with 10 to 13 C of fatty alcohol, thorium oxide catalyst or strongly acid cation resin; the mol ratio of the alcohol to gas is kept to be 1 to 2:1.2 to 2.5; the reaction is performed for 6 to 8 h under the condition that the pressure is 12 to 15 MPa and the temperature is 300 to 450 DEG C to obtain liquid mixture; distillate is collected by distillation under normal pressure at 180 to 300 DEG C according to different carbon numbers, and after the refracting index is detected to be qualified, transparent, colorless and adhesive liquid substance with peculiar odor is obtained, which is the sulfide mineral collector. By adopting the sulfide mineral collector, sulphide ore can be efficiently recovered without active agent, the overall recovery of the sulphide ore reaches larger than 89 percent, and the production cost is reduced.

Description

1. Technical field [0001] The invention relates to a mineral flotation collector, in particular to a polymetallic sulfide mineral collector which is associated with oxidized minerals and sulfide minerals and is suitable for re-election of oxidized minerals. 2. Background technology [0002] At present, the mixed flotation of sulfide ores at home and abroad generally adopts sulfuric acid or copper sulfate to activate first, and then adds xanthate for flotation collection. The flotation recovery rate of sulfide ores is between 70% and 85%, and the collection effect is not very good. Ideal, especially for polymetallic sulfide ores associated with oxidized minerals and sulfide minerals and oxidized minerals are suitable for re-election, such as tin-tungsten-containing polymetallic sulfide ores, first mixed flotation sulfide ores and then re-selected oxidized minerals, due to the capture of xanthate If the collection capacity is not strong, it is necessary to add a large amount o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/002B03D101/02B03D103/02
Inventor 陈锦全周德炎唐凤玲陈建华魏宗武陈志文穆枭兰丽红
Owner 广西华锡集团股份有限公司
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