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Beneficiation method for recovering molybdenum from tungsten tin associated sulfide ore bulk concentrate

A technology of mixed concentrate and ore dressing method, applied in flotation, solid separation, etc., can solve the problems of large environmental impact, complex molybdenum recovery process, high input cost, etc., achieve small dosage, expand the difference of floatability, and completely remove the drug Effect

Inactive Publication Date: 2016-05-04
GUANGZHOU RES INST OF NON FERROUS METALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide an environmentally friendly beneficiation method for recovering molybdenum in view of the complex recovery process of molybdenum in the mixed concentrate of tungsten-tin associated sulfide ore, high input cost, and relatively large environmental impact.

Method used

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  • Beneficiation method for recovering molybdenum from tungsten tin associated sulfide ore bulk concentrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The ore feed is a mixed concentrate of tin-associated sulfide ore obtained by multiple floating operations of a tin-associated polymetallic sulfide ore, of which the molybdenum grade is 1.28%.

[0032] Stir and heat the mixed concentrate with a concentration of 50% at 90°C for 90 minutes, add water to the mixed concentrate of the sulfide ore after heating and de-drugging to a slurry concentration of 34%, add quicklime to adjust the slurry pH to 12, and stir for 3 minutes ; Add sodium humate 200g / t and starch 200g / t, stir for 3 minutes, add kerosene 110g / t, stir for 2 minutes, perform a roughing operation, get a roughing concentrate and a roughing tailings; Add kerosene 40 / t to the tailings, stir for 2 minutes, do a sweeping, get a sweeping concentrate and a sweeping tailings; a sweeping concentrate enters a roughing; in a sweeping tailings Add kerosene 20g / t, stir for 2 minutes, do the second sweeping, get the second sweeping concentrate and the second sweeping tailings; t...

Embodiment 2

[0034] The feed is a mixed concentrate of tungsten-associated sulfide ore obtained from a tungsten ore-associated polymetallic sulfide ore after multiple floating operations, of which the molybdenum grade is 0.95%.

[0035] Stir and heat the mixed concentrate with a concentration of 60% at 80°C for 100 minutes, add water to the mixed concentrate of the sulfide ore after heating to remove the drug to a slurry concentration of 35%, add quicklime to adjust the slurry pH to 12.5, and stir for 3 minutes ; Add dextrin 450g / t, stir for 3 minutes; add diesel 150g / t, stir for 2 minutes, perform a roughing operation, get a roughing concentrate and a roughing tailing; add diesel to the roughing tailings 50 / t, stirring for 2 minutes; do one sweep, get one sweep concentrate and one sweep tailings; one sweep concentrate enters a rough selection; add 30g / t diesel to the one sweep tailings, Stir for 2 minutes; do the second sweeping to get the second sweeping concentrate and the second sweeping ...

Embodiment 3

[0037] The feed ore is a mixed concentrate of tungsten-associated sulfide ore obtained through mixed flotation of a tungsten ore associated polymetallic sulfide ore, of which the molybdenum grade is 0.82%.

[0038] Stir and heat the mixed concentrate with a concentration of 55% at 90°C for 60 minutes, add water to the mixed concentrate of the sulfide ore after heating and de-agent to adjust the slurry to 33%, add quicklime to adjust the slurry pH to 12, stir for 3 minutes, add Carboxymethyl cellulose 200g / t and sodium humate 250g / t, stir for 3 minutes, add kerosene 120g / t, stir for 2 minutes, perform a roughing operation to obtain a roughing concentrate and a roughing tailing; Add kerosene 45 / t to the tailings of one roughing, stir for 2 minutes, do one sweeping, get one sweeping concentrate and one sweeping tailings; one sweeping concentrate enters one roughing; after one sweeping tailings Add 30g / t of kerosene to the ore, stir for 2 minutes, and do the second sweeping to obtain...

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Abstract

The invention discloses a beneficiation method for recovering molybdenum from a tungsten tin associated sulfide ore bulk concentrate. The beneficiation method is characterized by comprising the following steps: after the heating reagent removal is performed for a sulfide ore bulk concentrate obtained from a tungsten tin associated sulfide ore; water is added for mixing pulp; quicklime is added for stirring to adjust the pulp; an inhibitor and a collecting agent are added for primary roughing to obtain a primary roughing concentrate and a primary roughing tailing; the collecting agent is added in the primary roughing tailing for secondary selection to obtain a secondary selection concentrate and a secondary selection tailing; and three times of blank selection are performed for the secondary selection concentrate to obtain a molybdenum concentrate. The method obtains the molybdenum concentrate with a molybdenum grade of 48-52% and a molybdenum recovery rate of 87-93%, reduces the molybdenum selection cost, generates no waste water and other substances harmful to the environment, and is an environment-friendly beneficiation method. The method is suitable for recovering molybdenum from the tungsten tin associated sulfide ore bulk concentrate.

Description

Technical field [0001] The invention belongs to the technical field of mineral processing, and relates to a beneficiation method for recovering molybdenum from a mixed concentrate of tungsten-tin associated sulfide ore, in particular to a high-efficiency environmentally friendly demedication of the mixed concentrate of tungsten-tin associated sulfide ore and the use of an environmentally friendly inhibitor The beneficiation method. Background technique [0002] With the development of the national economy, the demand for molybdenum metal is gradually increasing, and easy-to-select molybdenum resources are gradually decreasing, and complex and difficult-to-select low-grade molybdenum resources are gradually becoming the object of development and utilization, effectively improving the current comprehensive level of development and utilization of molybdenum resources Become a top priority. In addition, with the continuous reduction of mineral resources, the use of mines is often no...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03B1/02B03B1/04B03D101/06B03D103/02
CPCB03B1/02B03B1/04B03D1/018B03D2201/06B03D2203/02
Inventor 胡真李汉文叶富兴邹坚坚杨凯志汤玉和汪泰李沛伦王成行宋宝旭陈福南易金武崔泽奇龚乃锐罗仁贵张学艺林永生彭桂华王晨亮胡佛明武鲁庆
Owner GUANGZHOU RES INST OF NON FERROUS METALS
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