Method for reverse flotation of enriched zinc silicate mineral in acidic condition

An acid condition, zinc silicate technology, applied in flotation, solid separation and other directions, can solve the problems of complex process structure, high recovery cost, large amount of consumption, etc., achieve simple process structure, less chemical dosage, high recovery rate Effect

Active Publication Date: 2014-03-26
GUANGXI UNIV
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the conventional flotation process of zinc silicate minerals, after adding gangue mineral inhibitors, fatty acid direct flotation, high-carbon long-chain SH-based collector flotation and other methods are used. These flotation methods are not only compatible with zinc silicate The amount of slime produced during the crushing and grinding process of ore is related to the type and content of gangue minerals, and it is also directly related to the buoyancy of gangue minerals. In this way, not only the recovery process of zinc silicate minerals The process structure is complicated, there are many kinds of chemicals and large dosage, the recovery cost is high, and the recovery rate of zinc silicate minerals is low, which affects the recovery and utilization of zinc silicate mineral resources; currently only high-grade zinc silicate minerals are directly reduced by pyrometallurgy Zinc powder is recycled, and lower-grade zinc silicate minerals have no economic value for recycling

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
  • Method for reverse flotation of enriched zinc silicate mineral in acidic condition
  • Method for reverse flotation of enriched zinc silicate mineral in acidic condition
  • Method for reverse flotation of enriched zinc silicate mineral in acidic condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The first example of the method for enriching zinc silicate minerals by reverse flotation under acidic conditions according to the present invention includes the following steps

[0020] 1. Mineral raw materials:

[0021] The content of zinc in the ore used is 11.27%, calcium 15.60%, iron 12.24%, phase analysis shows that zinc mainly exists in the form of zinc silicate, gangue minerals mainly exist in the form of carbonate, and some limonite.

[0022] 2. Total dosage of flotation reagents and operating conditions:

[0023]

[0024] In the flotation process, after grinding the ore until the mineral monomer dissociates, adding sulfuric acid to adjust the pH value of the pulp to 5.5-6.5, then adding acidified water glass and sodium thioglycolate to inhibit the zinc silicate minerals, and finally adding oxidized paraffin soap and Sodium dodecyl sulfonate flotation gangue minerals, the flotation foam is directly discarded, and the flotation tank is zinc silicate concentr...

example

[0026] The second example of the method for enriching zinc silicate minerals by reverse flotation under acidic conditions according to the present invention includes the following steps

[0027] 1. Mineral raw materials:

[0028] The content of zinc in the ore used is 14.56%, the content of calcium is 13.13%, and the content of iron is 10.44%. The phase analysis shows that zinc mainly exists in the form of zinc silicate, gangue minerals mainly exist in the form of carbonate, and some brown iron ore.

[0029] 2. Total dosage of flotation reagents and operating conditions:

[0030]

[0031] In the flotation process, after grinding the ore until the mineral monomer dissociates, adding sulfuric acid to adjust the pH value of the pulp to 5.5-6.5, then adding acidified water glass and sodium thioglycolate to inhibit the zinc silicate minerals, and finally adding oxidized paraffin soap and Sodium dodecyl sulfonate flotation gangue minerals, the flotation foam is directly discard...

Embodiment 3

[0033] The third example of the method for enriching zinc silicate minerals by reverse flotation under acidic conditions according to the present invention includes the following steps

[0034] 1. Mineral raw materials:

[0035] The content of zinc in the ore used is 17.80%, the content of calcium is 10.38%, and the content of iron is 7.11%. The phase analysis shows that zinc mainly exists in the form of zinc silicate, gangue minerals mainly exist in the form of carbonate, and some brown iron ore.

[0036] 2. Total dosage of flotation reagents and operating conditions:

[0037]

[0038] In the flotation process, after grinding the ore until the mineral monomer dissociates, adding sulfuric acid to adjust the pH value of the pulp to 5.5-6.5, then adding acidified water glass and sodium thioglycolate to inhibit the zinc silicate minerals, and finally adding oxidized paraffin soap and Sodium dodecyl sulfonate flotation gangue minerals, the flotation foam is directly discarded...

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

No PUM Login to view more

Abstract

A method for reverse floatation of an enriched zinc silicate mineral in an acidic condition comprises the following steps: using sulfuric acid as a pH value regulator, using acidified sodium silicate and sodium thioglycollate as an inhibitor for the zinc silicate mineral, and using oxidized paraffin soap and sodium dodecyl sulfate as a collector for the zinc silicate mineral. By the adoption of the method, the zinc silicate mineral can be effectively recycled, and under the condition that the feeding zinc grade is 11.27-17.80%, the zinc silicate concentrate with the grade being 39.24-44.90% and the recycling rate being 82.55-88.20% can be obtained after three-time reverse floatation.

Description

1. Technical field [0001] The invention relates to a method for reverse flotation enrichment of oxidized minerals, in particular to a method for reverse flotation enrichment of zinc silicate minerals under acidic conditions. 2. Background technology [0002] In the conventional flotation process of zinc silicate minerals, after adding gangue mineral inhibitors, the direct flotation of fatty acids, the flotation of high-carbon long-chain SH-based collectors and other methods are used. These flotation methods are not only compatible with zinc silicate. The amount of sludge produced in the process of crushing and grinding of ore is related to the type and content of gangue minerals, and it is also directly related to the floatability of gangue minerals. This is not only the process of recovering zinc silicate minerals. The process structure is complex, there are many types of chemicals and large dosages, and the recovery cost is high. Moreover, the recovery rate of zinc silicat...

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 Applications(China)
IPC IPC(8): B03D1/00B03D1/018B03D101/02B03D101/06
Inventor 魏宗武
Owner GUANGXI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap