Unlock instant, AI-driven research and patent intelligence for your innovation.

Beneficiation method of white tungsten tailing

A beneficiation method and tailings technology, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of low recovery rate and grade of tungsten ore, and achieve the effect of improving the recovery rate and grade

Inactive Publication Date: 2013-11-27
HUNAN RES INST FOR NONFERROUS METALS +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for beneficiation of scheelite tailings to solve the technical problem of low recovery rate and grade of tungsten ore during beneficiation of tungsten ore

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Beneficiation method of white tungsten tailing
  • Beneficiation method of white tungsten tailing
  • Beneficiation method of white tungsten tailing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1) Take 500g of scheelite tailings, add water to the tungsten ore, adjust the tungsten ore into a tungsten slurry with a mass concentration of 33%, add 4g of a dispersant solution with a mass concentration of 5%, that is, take the amount at 400g / t.

[0041] 2) Take 5g of cornstarch, 60°C, 100ml of distilled water, stir at a constant temperature for 40min to form a cornstarch slurry; cool down the cornstarch slurry to 50°C, add 1mmol of cerium ammonium nitrate and 1mmol of potassium persulfate as a composite initiator, and continue stirring 5min; add 10ml of oleic acid, stir and make it react for 3 hours to form a water-soluble flocculant; add absolute ethanol to the water-soluble flocculant, suction filter and wash the water-soluble flocculant to obtain a starch graft copolymer; The crude product of the starch graft copolymer that obtains is as in Soxhlet extractor, with acetone as solvent, after it is extracted 24 hours, removes homopolymer, then it is dried to constant...

Embodiment 2

[0046] 1) Take 500g of scheelite tailings, add water to the tungsten ore, adjust the tungsten ore into a tungsten slurry with a mass concentration of 35%, add 6.5g of a dispersant solution with a mass concentration of 5%, that is, take the amount at 650g / t.

[0047] Take 10g of cornstarch, 70°C, 125ml of distilled water, stir at a constant temperature for 50min to form a cornstarch slurry; cool the cornstarch slurry to 50°C, add 1.5mmol of cerium ammonium nitrate and 1.5mmol of potassium persulfate as a composite initiator, and continue stirring 8min; add 15ml of oleic acid, stir and make it react for 3 hours to form a water-soluble flocculant; add absolute ethanol to the water-soluble flocculant, suction filter and wash the water-soluble flocculant to obtain a starch graft copolymer; The crude product of the starch graft copolymer that obtains is as in Soxhlet extractor, with acetone as solvent, after it is extracted 24 hours, removes homopolymer, then it is dried to constant ...

Embodiment 3

[0052] 1) Take 500g of scheelite tailings, add water to the tungsten ore, adjust the tungsten ore into a tungsten slurry with a mass concentration of 38%, add 9g of a dispersant solution with a mass concentration of 5%, that is, take the amount at 900g / t.

[0053] Take 15g of cornstarch, 90°C, 150ml of distilled water, and stir at a constant temperature for 70min to form a cornstarch slurry; cool the cornstarch slurry to 50°C, add 2mmol of cerium ammonium nitrate and 2mmol of potassium persulfate as a composite initiator, and continue stirring for 10min; Add the oleic acid of 20ml, make it react 3 hours after stirring, form water-soluble flocculant; Add dehydrated alcohol to water-soluble flocculant, suction filter and wash water-soluble flocculant, obtain starch graft copolymer; Will obtain The crude product of the starch graft copolymer was placed in a Soxhlet extractor, with acetone as a solvent, after it was extracted for 24 hours, the homopolymer was removed, and then it w...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
modulusaaaaaaaaaa
Login to View More

Abstract

The invention provides a beneficiation method of white tungsten tailings. The beneficiation method comprises the following steps of: blending the white tungsten tailings into tungsten ore slurry, and adding a dispersing agent to the tungsten ore slurry; then preparing a reunion reagent, and adding the reunion reagent to the tungsten ore slurry; finally sorting the tungsten ore slurry. A preparation method of the reunion reagent comprises the following steps of: firstly blending corn starches into corn starch slurry; then adding a compound initiator of cammonium ceric nitrate and potassium peroxydisulfate, stirring, and then adding oleic acids to form a water-soluble flocculating agent; finally adding absolute ethanol to the water-soluble flocculating agent, extracting and filtering to obtain the reunion reagent. According to the beneficiation method of the white tungsten tailings, multiple tungsten ore granules are reunited into larger granular tungsten ore pellets through the reunion reagent and then placed on a belt-type separator for separation, and therefore, the recovery rate and the grade of tungsten ores can be enhanced.

Description

technical field [0001] The invention relates to the field of recovering fine-grained minerals, in particular to a beneficiation method of scheelite tailings. Background technique [0002] In my country, the reserves of scheelite are relatively large, but the grade of scheelite is low, and the embedded particle size is uneven. Scheelite is a well-known ore that is difficult to separate and process. At present, there are mainly three kinds of sorting scheelite that are relatively mature. The process method: single flotation, single re-election, combination of re-election and flotation. [0003] It is difficult to achieve the effective separation of fine-grained scheelite and gangue ore by a single gravity separation and the combination of gravity separation and flotation. Enrichment is formed in the ore, resulting in a low total recovery rate of scheelite flotation. Therefore, there is an urgent need to provide a sorting method for fine-grained scheelite. Contents of the in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B03B5/48B03B1/04
Inventor 陈述明邓家军薛峰黄建旗黄顺红王杨唐瑜徐勇曹哓平乐毅王铁刚刘岳军
Owner HUNAN RES INST FOR NONFERROUS METALS