Beneficiation method for producing low-phosphorous molybdenum concentrate by utilizing ultrasonic waves

A mineral processing method, ultrasonic technology, applied in flotation, solid separation, etc., can solve the problems of soluble metal mineral dissolution, high cost, and agglomeration of molybdenum sulfide mineral oil, achieving significant economic and environmental benefits, low production costs, and increased Hydrophilic effect

Inactive Publication Date: 2016-03-23
INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] In the existing technology represented by the above-mentioned patent documents, since polar oil collectors are usually used for flotation in the molybdenum beneficiation process, it is easy to cause oil agglomeration of molybdenum sulfide minerals, so that some fine-grained phosphorus-containing minerals are wrapped In the agglomeration of molybdenum sulfide minerals, resulting in high phosphorus content in mineral processing products
For flotation molybdenum concentrates with excessive phosphorus content, concentrators usually use them together wi

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  • Beneficiation method for producing low-phosphorous molybdenum concentrate by utilizing ultrasonic waves

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Embodiment 1

[0033] With Mo content being 41.87%, the unqualified molybdenum concentrate of P content 0.11% is raw material, utilizes technology of the present invention, carries out following steps, as figure 1 :

[0034] (1) Ultrasonic treatment: The high-phosphorus molybdenum concentrate is subjected to ultrasonic dispersion cleaning treatment in an ultrasonic cleaning machine, the ultrasonic frequency is 40KHz, the ultrasonic intensity is 350W, and the processing time is 10 minutes. At the same time, the binary copolymer of low molecular weight acrylic acid and maleic anhydride is added to inhibit the dispersion of phosphorus-containing minerals, and the dosage is 4000g / t.

[0035] (2) Rough selection by flotation: the processed molybdenum concentrate is used as raw material, and then put into the flotation machine for rough separation operation to obtain rough separation concentrate and rough separation tailings, which are used as raw materials for further selection , roughing tailin...

Embodiment 2

[0039] With Mo content being 45.27%, P content 0.065% phosphorus-containing molybdenum concentrate exceeding the standard as raw material, utilizing the process technology of the present invention, carry out following steps, as figure 1 :

[0040] (1) Ultrasonic treatment: The high-phosphorus molybdenum concentrate is subjected to ultrasonic dispersion cleaning treatment in an ultrasonic cleaning machine, the ultrasonic frequency is 30KHz, the ultrasonic intensity is 200W, and the processing time is 8 minutes. At the same time, the binary copolymer of low molecular weight acrylic acid and maleic anhydride is added to inhibit the dispersion of phosphorus-containing minerals, and the dosage is 3000g / t.

[0041] (2) Rough selection by flotation: the processed molybdenum concentrate is used as raw material, and then put into the flotation machine for rough separation operation to obtain rough separation concentrate and rough separation tailings, which are used as raw materials for...

Embodiment 3

[0045] With Mo content as 48.45%, P content 0.092% phosphorus-containing molybdenum concentrate exceeding the standard as raw material, utilize the technology of the present invention, carry out following steps, as figure 1 :

[0046] (1) Ultrasonic treatment: The high-phosphorus molybdenum concentrate is subjected to ultrasonic dispersion cleaning treatment in an ultrasonic cleaning machine, the ultrasonic frequency is 80KHz, the ultrasonic intensity is 250W, and the treatment time is 6 minutes. At the same time, low molecular weight sodium polyacrylate is added to inhibit the dispersion of phosphorus-containing minerals, and the dosage is 3000g / t.

[0047] (2) Rough selection by flotation: the processed molybdenum concentrate is used as raw material, and then put into the flotation machine for rough separation operation to obtain rough separation concentrate and rough separation tailings, which are used as raw materials for further selection , roughing tailings as raw mater...

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Abstract

The invention discloses a beneficiation method for producing low-phosphorous molybdenum concentrate by utilizing ultrasonic waves. The beneficiation method comprises the following steps: (1) carrying out ultrasonic treatment: carrying out ultrasonic dispersing and cleaning on medium-grade and high-grade high-phosphorous molybdenum concentrate obtained by flotation for 3-20 minutes at ultrasonic frequency of 28-80KHz and ultrasonic strength of 200-400W, simultaneously adding a phosphate mineral inhibitor with amount of 1500-7000g/t to carry out dispersion inhibition on phosphor-containing minerals; (2) carrying out primary flotation; (3) carrying out flotation scavenging; and (4) carrying out flotation concentration. According to the beneficiation method, by utilizing ultrasonic means and adding the efficient phosphor inhibitor, phosphor content in a molybdenum concentrate product generated by flotation is reduced to be below the standard, so that qualified low-phosphorous molybdenum concentrate is obtained. According to the method, a chemical phosphorus removal process of a beneficiation plant is cancelled, production cost and generation of waste liquor are reduced, and economic benefits and environmental benefits are remarkable.

Description

technical field [0001] The present invention relates to the technical field of new dephosphorization flotation technology for medium and high-grade molybdenum concentrates with relatively high phosphorus content, in particular to a beneficiation method for producing low-phosphorus molybdenum concentrates. The medium and high-grade molybdenum concentrates produced by ultrasonic pretreatment are dephosphorized by mineral processing to produce low-phosphorus qualified molybdenum concentrates. Background technique [0002] my country is very rich in molybdenum ore resources. As of the end of 2014, the resource reserves reached 28.26 million tons, which is one of the six dominant mineral resources in my country. The available molybdenum ore resources tend to be poor, fine and miscellaneous. Harmful impurities called interstitial elements such as S, P, and Si in ore resources are embedded with fine particles of molybdenum sulfide minerals, resulting in difficult separation of ore ...

Claims

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Application Information

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IPC IPC(8): B03D1/02B03D1/08B03B1/00
CPCB03B1/00B03D1/02B03D1/08
Inventor 毛益林杨进忠陈晓青严伟平王秀芬
Owner INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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