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Pyrochlore concentrate obtaining method

A method for obtaining pyrochlore and a technology for pyrochlore, which are applied in the field of obtaining pyrochlore concentrate, can solve the problems of low production efficiency, difficult control, and complicated processes for obtaining pyrochlore, so as to improve production efficiency, be easy to control, and reduce production cost effect

Active Publication Date: 2019-03-19
BEIJING RES INST OF URANIUM GEOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is: the existing method for obtaining pyrochlore is complex in process, difficult to control, and low in production efficiency

Method used

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Embodiment Construction

[0030] A method for obtaining pyrochlore concentrate of the present invention will be described in detail below in conjunction with an embodiment.

[0031] The pyrochlore concentrate acquisition method in the present embodiment comprises the following steps:

[0032] step 1

[0033] Grinding operation for ore containing pyrochlore. In this embodiment, the ore is ground until the particles with a particle size of -74 μm account for 30%-70% of the total particle number.

[0034] step 2

[0035] For the pyrochlore-containing ore processed in step 1, use a shaking table to sort, discard the tailings, and obtain a gravity-selected concentrate.

[0036] step 3

[0037] Adjust the pulp concentration and pH value of the gravity-selected concentrate obtained in step 2. In this embodiment, the mass percentage of the pulp concentration is adjusted to 20%-60%; then sodium hydroxide solution is added to adjust the pH value of the pulp to 6.0-8.0.

[0038] step 4

[0039] Add sodium ...

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Abstract

The invention belongs to the technical field of resource utilization and recovery, and in particular, relates to a pyrochlore concentrate obtaining method. The method comprises the following steps: ores containing pyrochlore are grinded; the ores are separated by using a table; tailings are discarded to obtain reselected concentrates; the pulp concentration and the pH value of the reselected concentrates are adjusted; sodium silicate and hydroximic acid collecting agents are added in pulp in succession; foam products are collected; the pulp concentration and the pH value of the foam products are adjusted; sodium silicate is added; and the foam products are collected as pyrochlore concentrates. The pyrochlore concentrate obtaining method solves the technical problems of complicated process,difficult control and low production efficiency in a traditional pyrochlore obtaining method, and achieves the technical effects of convenient and fast process, easy control, reduction of the production cost and improvement of the production efficiency.

Description

technical field [0001] The invention belongs to the technical field of resource utilization and recovery, and in particular relates to a method for obtaining pyrochlore concentrate. Background technique [0002] Metal niobium has a high melting point, good corrosion resistance and gas absorption, and is widely used in alloy manufacturing, super new materials, special materials, etc. It is an inaccessible raw material in aerospace, nuclear industry, weapon industry, machinery manufacturing and other fields. At present, more than 90% of the world's niobium resources come from pyrochlore, so the acquisition of pyrochlore concentrate is of great significance to the industrial development of the world. [0003] The current method of obtaining pyrochlore is: after ore grinding, flotation to remove carbonate gangue, and then hydrocyclone classification to remove over-crushed fine particles in the pulp, and then magnetic separation to remove associated magnetite and other magnetic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03B1/00B03D103/02
CPCB03B1/00B03D1/02B03D2203/025
Inventor 艾永亮郭冬发范光李子颖
Owner BEIJING RES INST OF URANIUM GEOLOGY
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