A method for recovering barium-strontium pyrochlore from weathered and altered carbonate-type niobium polymetallic ore

A carbonate-type, polymetallic ore technology, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of unrecoverable barium strontium pyrochlore, low recovery rate, lack of sorting process, etc. , to achieve the effect of reducing the processing amount of sorting operations, high recovery rate, and solving the high cost of enrichment

Active Publication Date: 2021-07-09
INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the gap in the research on the recovery of pyrochlore concentrate in the existing weathered and altered carbonate type niobium polymetallic ore, lack of reasonable sorting process flow, barium strontium pyrochlore cannot be recycled, or The defects and deficiencies of the extremely low recovery rate provide a method for recovering barium-strontium pyrochlore from weathered and altered carbonate-type niobium polymetallic ores

Method used

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  • A method for recovering barium-strontium pyrochlore from weathered and altered carbonate-type niobium polymetallic ore
  • A method for recovering barium-strontium pyrochlore from weathered and altered carbonate-type niobium polymetallic ore
  • A method for recovering barium-strontium pyrochlore from weathered and altered carbonate-type niobium polymetallic ore

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Effect test

Embodiment 1

[0042] A method for recovering barium-strontium pyrochlore from weathered and altered carbonate-type niobium polymetallic ore, comprising the steps of:

[0043] S1. Raw ore grinding to -1mm accounts for 90%;

[0044] S2. Add water to the product after grinding to adjust the pulp concentration to 25%, and carry out spiral gravity separation in the spiral chute to obtain coarse concentrate and spiral tailings;

[0045] S3. Regrind the coarse concentrate to -0.074mm to account for 70%, add water to adjust the slurry to a pulp concentration of 30%, add floating phosphorus reagents, and perform apatite flotation to obtain phosphorus concentrate and floating phosphorus tailings;

[0046] S4. Feed the floating phosphorus tailings into a weak or medium magnetic separator for weak or medium magnetic separation, adjust the magnetic field strength to 0.15T, and obtain iron concentrate and weak or medium magnetic tailings;

[0047] S5. Feed the weak magnetic / medium magnetic tailings into...

Embodiment 2

[0053] A method for recovering barium-strontium pyrochlore from weathered and altered carbonate-type niobium polymetallic ore, comprising the steps of:

[0054] S1. Raw ore grinding to -1mm accounts for 85%;

[0055] S2. Add water to the product after grinding to adjust the pulp concentration to 20%, and carry out spiral gravity separation in the spiral chute to obtain coarse concentrate and spiral tailings;

[0056] S3. Regrind the coarse concentrate to -0.074mm to account for 76%, add water to adjust the slurry to a pulp concentration of 25%, add floating phosphorus reagents, and perform apatite flotation to obtain phosphorus concentrate and floating phosphorus tailings;

[0057] S4. Feed the floating phosphorus tailings into the weak magnetic separator for weak magnetic separation, adjust the magnetic field strength to 0.25T, and obtain iron concentrate and weak magnetic tailings;

[0058] S5. Feed the weak magnetic tailings into the strong magnetic separator for strong ma...

Embodiment 3

[0064] A method for recovering barium-strontium pyrochlore from weathered and altered carbonate-type niobium polymetallic ore, comprising the steps of:

[0065] S1. Raw ore grinding to -1mm accounts for 88%;

[0066] S2. Add water to the product after grinding to adjust the pulp concentration to 30%, and carry out spiral gravity separation in the spiral chute to obtain coarse concentrate and spiral tailings;

[0067] S3. Regrind the coarse concentrate to -0.074mm to account for 80%, add water to adjust the slurry to a pulp concentration of 35%, add floating phosphorus reagents, and perform apatite flotation to obtain phosphorus concentrate and floating phosphorus tailings;

[0068] S4. Feed the floating phosphorus tailings into the medium magnetic separator for weak magnetic separation, adjust the magnetic field strength to 0.35T, and obtain iron concentrate and medium magnetic tailings;

[0069] S5. Feed the medium magnetic tailings into the strong magnetic separator for str...

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Abstract

The invention discloses a method for recovering barium-strontium pyrochlore from weathered and altered carbonate-type niobium polymetallic ore. The research object of the present invention is weathered carbonate-type niobium polymetallic ore. Firstly, the coarse concentrate is obtained by using spiral tailings, and the phosphorus concentrate is obtained by grinding and flotation of the coarse concentrate, and the floating phosphorus tailings are obtained by weak magnetic separation. Mine and weak magnetic separation tailings are subjected to strong magnetic separation to obtain strong magnetic products, and strong magnetic separation tailings are separated by shaking table to obtain pyrochlore concentrate, which realizes the recovery of barium strontium pyrochlore from weathered phosphate-type niobium polymetallic ore. Phosphorus and iron are recovered at the same time. The present invention adopts the process of combining flotation, weak magnetic separation, strong magnetic separation and gravity separation, and has the advantages of strong adaptability, high grade of pyrochlore concentrate and high recovery rate, etc. Recover barium-strontium pyrochlore from salt-type niobium polymetallic ore, and recover apatite and iron minerals in it at the same time.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for recovering barium-strontium pyrochlore from weathered and altered carbonate-type niobium polymetallic ore. Background technique [0002] Niobium is a rare refractory metal widely used in steel, aerospace and other fields. my country is a typical niobium-poor country, and more than 90% of niobium resources are imported. 95% of the global niobium supply comes from pyrochlore. However, my country's niobium resources are mainly ferroniobium ore and niobium-iron rutile, and pyrochlore-based ores have not been found in my country. Therefore, domestic pyrochlore Quarry studies are extremely rare. The reserves of carbonate-type pyrochlore ore resources are very huge, widely distributed in Africa, South America and other regions. This kind of ore has the characteristics of high iron, high mud and high phosphorus, which is difficult to sort. It has long lacked suit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B9/00B03B7/00
CPCB03B7/00B03B9/00
Inventor 邹坚坚胡真邱显扬李汉文汪泰付华李沛伦王成行杨凯志丘世澄姚艳清李强冉金城时晗
Owner INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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