Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for recovering garnet and omphacite from eclogite ore

A technology for garnet and omphacite, applied in the field of recycling garnet and omphacite in eclogite mines, can solve the problem of poor effect, high garnet and omphacite concentrate products, and omphacite concentrate indicators To achieve the effect of simple process flow, stable sorting index and increased yield

Pending Publication Date: 2019-06-25
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as a single gravity separation process is concerned, it is difficult to obtain garnet and omphacite concentrate products with high mineral content (>90%). The main reason is that the separation accuracy of gravity separation equipment such as spiral chutes and shakers is not high, and Interference between coarse and fine ore particles is serious in the process of full-size gravity separation of grinding products
The separation accuracy of the flotation process is higher than that of the single gravity separation and magnetic separation process, but the cost of the flotation process is high, the flotation conditions are strictly controlled and difficult to implement on site, the flotation reagents pollute the environment, and the fine garnet and omphacite There are defects such as chemical residues on the surface of the mine
Garnet has weak magnetism. If a single magnetic separation is used for separation, the effect will be poor due to the small magnetic difference between garnet and other minerals.
[0005] Experimental study on the roughing of an eclogite-type rutile ore [J], Nonmetallic Minerals, Huang Junwei et al., 2017.1, 40(1), discloses a roughing test method for rutile ore, after gravity separation by shaking table, light The mineral is directly used as omphacite concentrate, but the index of omphacite concentrate is poor, the yield rate is 26.06%, the mineral content is greater than 85%, and the mineral recovery rate is 70%. In addition, the garnet concentrate in this method Yield 26.05%, mineral content 90%, mineral recovery 70%

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 recovering garnet and omphacite from eclogite ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The eclogite ore in this embodiment is mined from Rizhao, Shandong. Analysis of the raw ore shows that the mineral content of garnet in the ore is 51.60%, and that of omphacite is 28.50%. The beneficiation technological process of present embodiment refers to attached figure 1 As shown, the -2mm raw ore is obtained by crushing and then ground, the grinding fineness is -0.074mm and the content is 35% (mass content, the same below). Sieve and classify the grinding products and divide them into three grades of +0.3mm, 0.1~0.3mm and -0.1mm; pulp the +0.3mm grade into a pulp with a concentration of 20%, adjust the 0.1~0.3mm grade Pulp into a pulp with a concentration of 25%, and pulp with a particle size of -0.1mm into a pulp with a concentration of 25%.

[0035]Gravity separation of +0.3mm pulp (gravity separation equipment is a spiral chute) to obtain +0.3mm heavy mineral products, +0.3mm intermediate products and +0.3mm light mineral products, +0.3mm light mineral produc...

Embodiment 2

[0043] Embodiment 2 is basically the same as Embodiment 1, the difference is that the eclogite ore of the present embodiment is mined from Donghai, Jiangsu, and the analysis of the raw ore shows that the mineral content of garnet in the ore is 45.60%, and the mineral content of omphacite is 45.60%. is 35.30%. The strength of the weak magnetic separation magnetic field for heavy mineral products and intermediate products of each particle size is 0.35T, and the strength of the strong magnetic separation magnetic field is 0.8T.

[0044] The separation indexes of each garnet and omphacite concentrate in this embodiment are shown in Table 2.

[0045] Table 2 embodiment 2 each garnet and omphacite concentrate sorting index / %

[0046] product name

[0047] The total yield of garnet concentrate (the garnet concentrates of all sizes are combined) is 42.70%, the mineral content is 91.73%, and the mineral recovery rate is 85.89%; ) The yield is 32.97%, the mineral content is ...

Embodiment 3

[0049] Example 3 is basically the same as Example 1, the difference is that the eclogite ore of this example is collected from Ulan, Qinghai, and the analysis of the raw ore shows that the mineral content of garnet in the ore is 50.70%, and the mineral content of omphacite The content is 23.68%. The strength of the weak magnetic separation magnetic field for heavy mineral products and intermediate products of each particle size is 0.30T, and the strength of the strong magnetic separation magnetic field is 0.75T. The separation indicators of each garnet and omphacite concentrate in this embodiment are shown in Table 3.

[0050] Table 3 embodiment 3 each garnet and omphacite concentrate selection index / %

[0051] product name

Yield

mineral content

Mineral Recovery

+0.3mm garnet concentrate

4.33

87

7.43

0.1~0.3mm garnet concentrate

34.21

92

62.08

-0.1mm garnet concentrate

9.17

90

16.28

+0.3mm omphacite c...

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

The invention provides a method for recovering garnet and omphacite from eclogite ore. The method comprises the following steps that raw ore samples are subjected to grinding through a rod mill; ground mineral products are screened and classified so as to be divided into a plurality of grain grades; grain products of each grain grade are subjected to pulp mixing to obtain ore pulp, and reselectingis carried out correspondingly; three products are obtained through reselecting of the grain products of each grain grade, namely heavy mineral products, intermediate products and light mineral products, and the light mineral products are taken as tailings; the heavy mineral products of each grain grade and the intermediate products of each grade are dried correspondingly; and the dried heavy mineral products and the intermediate products are subjected to primary dry magnetic separation and secondary dry magnetic separation respectively, wherein the primary dry type magnetic separation is weak magnetic separation, and the secondary dry type magnetic separation is strong magnetic separation. According to the method for recovering the garnet and the omphacite from the eclogite ore, the quality of the garnet and the eclogite ore concentrate can be effectively improved, specifically, the garnet mineral content is more than 91%, the garnet mineral recovery rate is more than 85%, the eclogite ore mineral content is more than 90%, the eclogite ore mineral recovery rate is more than 84.50%, the production cost is reduced, and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of mineral processing, and relates to a method for recovering garnet and omphacite in eclogite ore. Background technique [0002] Eclogite is a high-temperature and high-pressure metamorphic rock. There are a large number of ultra-high pressure eclogite bodies in the Sulu ultra-high pressure metamorphic belt extending eastward from the Qinling-Dabie ultra-high pressure metamorphic belt in my country. The mineral composition of eclogite mines in different origins is different, mainly composed of garnet, omphacite, chlorite and other minerals, of which the total mineral content of garnet and omphacite can generally reach more than 80%, and some The eclogite ore in the place of origin also contains rutile, kyanite, mica and other minerals that can be used comprehensively. [0003] The main beneficiation products of eclogite ore are garnet and omphacite. Garnet has the characteristics of sharp particle edges a...

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
IPC IPC(8): B03B1/00B03B7/00B03B9/00
Inventor 黄俊玮杨楠李洪潮雷晴宇刘磊
Owner ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com