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Separation mineral processing method for molybdenite and galena

A beneficiation method and galena technology, applied in solid separation, flotation and other directions, can solve the problems of heavy metal ions not easily degraded, serious environmental pollution, single effect of pharmaceutical agents, etc., to avoid environmental pollution, simple process, high economic and technical indicators Effect

Inactive Publication Date: 2015-12-16
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the flotation process of non-ferrous polymetallic ore, the beneficiation method of separating molybdenite and galena mainly uses sodium sulfide and dichromate to inhibit galena. This method mainly has the following problems: (1) heavy metal ions are not easy to degrade , which seriously pollutes the environment; (2) the effects of various agents are single, and they can only inhibit specific minerals

Method used

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  • Separation mineral processing method for molybdenite and galena
  • Separation mineral processing method for molybdenite and galena
  • Separation mineral processing method for molybdenite and galena

Examples

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Effect test

Embodiment 1

[0014] Embodiment A pair of molybdenum-lead polymetallic sulfide ore is subjected to flotation separation of molybdenum and lead. In the molybdenum-lead mixed concentrate, the grade of molybdenum is 17.5%, and the grade of lead is 17%. Wherein the separation and dressing steps of molybdenite and galena are:

[0015] 1) Rough separation: Grind molybdenum-lead polymetallic sulfide ore, that is, the raw ore to -0.044 mm, accounting for 90%, adjust the pulp concentration to 30%, add pulp pH regulator and galena combined inhibitor to make the pulp pH = 10, add The galena combination inhibitor is calculated per ton of raw ore: ammonium sulfide 2000g / t, sodium sulfite 1000g / t, sodium metabisulfite 1000g / t, collector kerosene 30g / t, stirring, and molybdenum-lead separation and flotation operation to obtain crude molybdenum Concentrate and lead rougher tailings.

[0016] 2) Sweeping: add galena combination inhibitor to the tailings slurry of roughing lead selection, that is, add ammon...

Embodiment 2

[0020] Raw ore is the same as embodiment one, and the separation ore dressing steps of molybdenite and galena are:

[0021] 1) Rough separation: Grind the molybdenum-lead polymetallic sulfide ore to -0.044 mm to account for 95%, adjust the pulp concentration to 25%, add the pulp pH regulator and galena combined inhibitor to make the pulp pH > 10, add The galena combination inhibitor is calculated per ton of raw ore: ammonium sulfide 1000g / t, sodium sulfite 500g / t, sodium metabisulfite 500g / t, collector kerosene 50g / t, stirring, and molybdenum-lead separation flotation operation to obtain crude molybdenum Concentrate and lead rougher tailings.

[0022] 2) Sweeping: the amount of galena combined inhibitor added to the tailings slurry of the lead roughing is shown in Table 1, and the rest of the steps are the same as in Example 1.

[0023] 3) Concentration: See Table 1 for the addition amount of galena combination inhibitor for each molybdenum concentrating operation, and the re...

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Abstract

The invention provides a separation mineral processing method for molybdenite and galena. The method is characterized in that molybdenum lead mixed ore, that is, raw ore is ground to be in the certain fineness, and the concentration and the PH of the slurry are adjusted; a galena combined inhibitor is added to restrain the galena, and a molybdenite collecting agent is added to achieve separation of the molybdenite and the galena; and the galena combined inhibitor is composed of ammonium sulfide, sodium sulfite and sodium pyrosulfite. A medicine agent used in the method is environment-friendly, and finally-obtained molybdenum concentrates and lead concentrates are high in grade. The mineral processing method is simple in technology, management and operation on site are easy, and the higher economic and technical indexes can be obtained through the technology.

Description

technical field [0001] The invention belongs to the technical field of mineral separation and beneficiation, and in particular relates to a beneficiation method for separating refractory molybdenite and galena. Background technique [0002] my country is rich in molybdenum resources, and lead is a harmful element in molybdenum concentrates. The technology of suppressing lead is adopted in the process of molybdenum beneficiation. In the flotation process of non-ferrous polymetallic ore, the beneficiation method of separating molybdenite and galena mainly uses sodium sulfide and dichromate to inhibit galena. This method mainly has the following problems: (1) heavy metal ions are not easy to degrade , serious environmental pollution; (2) various medicaments have a single effect and can only have an inhibitory effect on specific minerals. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides a beneficiation method for s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/004B03D1/012B03D101/02B03D101/06B03D103/04
Inventor 李福兰胡保栓袁艳孙运礼包玺琳刘斯佳沈光坤
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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