A kind of beneficiation method for recovering molybdenum from tungsten-tin associated sulfide ore mixed concentrate

A technology of mixed concentrate and ore dressing method, which is applied in flotation, solid separation, etc., can solve the problems of high input cost, large environmental impact, and complicated molybdenum recovery process, and achieve complete drug removal, small dosage, and expanded floatability difference effect

Inactive Publication Date: 2018-01-19
GUANGZHOU RES INST OF NON FERROUS METALS +1
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  • 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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  • A kind of beneficiation method for recovering molybdenum from tungsten-tin associated sulfide ore mixed concentrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The ore feed is the mixed concentrate of tin-associated sulfide ore obtained from a tin ore-associated polymetallic sulfide ore after several flotation operations, in 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 sulfide ore after heating and demedication to adjust the pulp concentration to 34%, add quicklime to adjust the pH of the pulp 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, carry out a roughing operation, obtain a roughing concentrate and a roughing tailings; Add kerosene 40 / t to the dressing tailings, stir for 2 minutes, and do a sweep to obtain a sweep concentrate and a sweep tailing; a sweep concentrate enters a rougher; in a sweep tailings Add 20g / t of kerosene, stir for 2 minutes, and do the second scavenging to obtain the second scavenging conce...

Embodiment 2

[0034] The ore feed is a mixed concentrate of tungsten-associated sulfide ore obtained from a tungsten ore-associated polymetallic sulfide ore after several flotation operations, in 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 sulfide ore after heating and demedication to adjust the pulp concentration to 35%, add quicklime to adjust the pH of the pulp to 12.5, and stir for 3 minutes Add dextrin 450g / t and stir for 3 minutes; add diesel oil 150g / t and stir for 2 minutes to perform a roughing operation to obtain a roughing concentrate and a roughing tailings; add diesel oil to the roughing tailings 50 / t, stirring for 2 minutes; do a sweep to get a sweep concentrate and a sweep tailings; a sweep concentrate enters a rough separation; add diesel oil 30g / t to a sweep tailings, Stir for 2 minutes; do secondary sweeping to obtain secondary sweeping concentra...

Embodiment 3

[0037] The ore feed is a tungsten-associated sulfide ore mixed concentrate obtained from a tungsten ore-associated polymetallic sulfide ore through mixed flotation operations, in 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 sulfide ore after heating and demedication to adjust the slurry to 33%, add quicklime to adjust the pH of the slurry to 12, stir for 3 minutes, add 200g / t of carboxymethyl cellulose and 250g / t of sodium humate, stirred for 3 minutes, added 120g / t of kerosene, stirred for 2 minutes, and carried out a roughing operation to obtain a roughing concentrate and a roughing tailing; Add 45 / t of kerosene to the tailings of the first roughing, stir for 2 minutes, and do a sweep to obtain the concentrate of the first sweep and the tailings of the first sweep; the concentrate of the first sweep enters the first rougher; Add 30g / t of kerosene to ...

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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 tungsten-tin associated sulfide ore mixed concentrate, in particular to an efficient and environment-friendly drug removal for tungsten-tin associated sulfide ore mixed concentrate and the use of an environmental inhibitor mining method. Background technique [0002] With the development of the national economy, the demand for molybdenum metal is gradually increasing, the easy-to-select molybdenum resources are gradually decreasing, and the complex and difficult-to-select low-grade molybdenum resources are gradually becoming the target of development and utilization, effectively improving the comprehensive level of the existing development and utilization of molybdenum ore resources become a priority. In addition, with the continuous reduction of mineral resources, the use of mines is often not limited to the recover...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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