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Beneficiation process of medium and low grade mixed collophanite

A hybrid, colloidal phosphate rock technology, applied in flotation, solid separation and other directions, can solve the problems of energy saving and consumption reduction, large consumption of chemicals, and high energy consumption of grinding, so as to reduce the processing capacity of grinding and improve the quality of grinding. Selectivity and the effect of improving beneficiation efficiency

Active Publication Date: 2020-07-28
INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution requires finer particle size, higher energy consumption for grinding, and large consumption of reagents, which is not a green beneficiation technology for energy saving and consumption reduction.
[0006] To sum up, there are problems such as high cost and large dosage of medicaments in the beneficiation of flotation mixed type glenite in the prior art

Method used

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  • Beneficiation process of medium and low grade mixed collophanite
  • Beneficiation process of medium and low grade mixed collophanite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A medium and low grade mixed collophosite, taken from a dressing plant in Mabian area, P 2 o 5 The grade is 22%, and its beneficiation process is as follows figure 1 shown, including the following steps:

[0047] S1. Crushing the raw ore to obtain crushed ore with a particle size ≤ 60mm;

[0048] S2. Screen the broken ore to obtain fine-grained ore with a particle size of ≤8mm and coarse-grained ore with two different particle sizes of +8-30mm and +30-60mm;

[0049] S3. Carry out photoelectric separation to two coarse-grained ores respectively to obtain their respective photoelectric separation concentrates and photoelectric separation tailings;

[0050] S4. Return the photoelectric separation tailings of the two particle sizes to step S3 respectively and repeat 2 to 3 times until P in the photoelectric separation tailings 2 o 5 Stop when the grade is less than or equal to 10%; among them, each photoelectric separation of the same particle size can obtain the respe...

Embodiment 2

[0062] A medium and low grade mixed collophosite, from Leibo Plant, P 2 o 5 The grade is 20%, and its beneficiation process is as follows figure 1 shown, including the following steps:

[0063] S1. Crushing the raw ore to obtain crushed ore with a particle size ≤ 60mm;

[0064] S2. Screen the crushed ore to obtain a fine-grained ore with a particle size of ≤8mm and a coarse-grained ore divided into two different particle sizes of -+8-30mm and +30-60mm;

[0065] S3. Carry out photoelectric separation to two coarse-grained ores respectively to obtain their respective photoelectric separation concentrates and photoelectric separation tailings;

[0066] S4. Return the photoelectric separation tailings of the two particle sizes to step S3 respectively and repeat 2 to 3 times until P in the photoelectric separation tailings 2 o 5 Stop when the grade is less than or equal to 10%; among them, each photoelectric separation of the same particle size can obtain the respective photoe...

Embodiment 3

[0078] A medium and low grade mixed collophosite, taken from a concentrator in Jinyang, P 2 o 5 The grade is 18%, and its beneficiation process is as follows figure 1 shown, including the following steps:

[0079] S1. Crushing the raw ore to obtain crushed ore with a particle size ≤ 60mm;

[0080] S2. Screen the broken ore to obtain fine-grained ore with a particle size of ≤ 8mm and coarse-grained ore divided into two different particle sizes of +8-30mm and +30-60mm;

[0081] S3. Carry out photoelectric separation to two coarse-grained ores respectively to obtain their respective photoelectric separation concentrates and photoelectric separation tailings;

[0082] S4. Return the photoelectric separation tailings of the two particle sizes to step S3 respectively and repeat 2 to 3 times until P in the photoelectric separation tailings 2 o 5 Stop when the grade is less than or equal to 10%; among them, each photoelectric separation of the same particle size can obtain the re...

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Abstract

The invention discloses a beneficiation process of medium and low grade mixed collophanite. The beneficiation process comprises the following steps: S1, performing crushing; S2, screening the crushedores to obtain fine-grained ores and coarse-grained ores with different gradations; S3, respectively carrying out photoelectric separation on the coarse-grained ores with different gradations to obtain respective photoelectric separation concentrates and photoelectric separation tailings with different gradations; S4, respectively returning the photoelectric separation tailings with different particle sizes to the step S3, and repeating the steps until the P2O5 grade in the photoelectric separation tailings is less than or equal to 10%; S5, combining all the obtained photoelectric separation concentrates to obtain pre-enriched concentrates; S6, combining and grinding the fine-grained ores and the pre-enriched concentrates to obtain ore pulp to be separated; and S7, adding water into the ore pulp to be separated to obtain flotation ore pulp, and adopting flotation operation of one roughing, one refining and one scavenging so as to obtain final phosphate concentrates and final tailings.By means of silicon reduction through photoelectric separation and magnesium removal through single reverse flotation, the effects of high beneficiation efficiency, small floating ore amount, low energy consumption, low cost and environmental protection are achieved.

Description

technical field [0001] The invention relates to the technical field of collophosite beneficiation, in particular to a process for beneficiating middle and low-grade mixed collophanite. Background technique [0002] As a main chemical raw material, phosphate rock is widely used in various fields such as agriculture, food, and medicine, and is closely related to people's daily life. At the same time, it is also a non-renewable and non-recyclable resource. The distribution characteristics of phosphate rock resources are relatively concentrated and unevenly distributed geographically. Phosphate rock resources in the world are mainly distributed in Africa, Asia, South America, North America and the Middle East, among which only Morocco and Western Sahara, China, the United States, and South Africa The reserves of phosphate rock resources in China and Russia account for more than 80% of the world's total reserves of phosphate rock resources. The distribution of phosphate rock res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B03D1/002B03D1/014B03D1/008B03D101/06B03D101/02B03D103/06
CPCB03B9/00B03D1/002B03D1/008B03D1/014B03D2201/02B03D2201/06B03D2203/06
Inventor 邓杰邓善芝陈达张丽军熊文良
Owner INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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