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Ore dressing process of recovering columbium mineral from baotite dressed rare earth tailings

A technology of rare earth tailings and Baotou mine, applied in flotation, solid separation, etc., can solve the problems of low grade and recovery rate, achieve high grade and recovery rate, solve the effect of recycling niobium minerals, and strong selectivity

Active Publication Date: 2013-09-25
包钢集团矿山研究院(有限责任公司)
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Problems solved by technology

The beneficiation process currently studied is limited to the recovery of niobium minerals or niobium minerals and iron ores, and the Nb of niobium concentrates is obtained 2 o 5 The grade and recovery rate are also relatively low

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  • Ore dressing process of recovering columbium mineral from baotite dressed rare earth tailings

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Embodiment Construction

[0017] The present invention will be further described below with specific examples.

[0018] A beneficiation process for recovering niobium minerals from rare earth tailings in Baotou Mine mainly includes the following parts:

[0019] 1. Naturally dry, crush and mix the tailings produced during the rare earth sorting process;

[0020] 2. Use the raw materials obtained in the above steps as raw materials for desulfurization flotation. Under natural pH and normal temperature conditions, first add 0.15 kg / t of copper sulfate as an activator for sulfur-containing minerals, and then add 0.06 kg / t of isopropyl xanthate As a collector of sulfur-containing minerals, 0.04kg / t of pine oil is added as a foaming agent at last, and rough separation is carried out to separate sulfur-containing minerals to obtain sulfur crude concentrate and tailings; Sulfur concentrate 1 is beneficiated once to obtain sulfur concentrate 1 and medium ore 1; sulfur concentrate 1 is subjected to secondary be...

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Abstract

The invention belongs to the technical field of mineral engineering and aims at providing an ore dressing process of recovering columbium mineral from baotite dressed rare earth tailings. The baotite dressed rare earth tailings is low in columbium content, fine in columbium mineral dissemination, various in columbium mineral types and complex in mineral paragenesis relationship and brings great difficulty in dressing the columbium mineral. According to the ore dressing process for recovering the columbium mineral from the baotite dressed rare earth tailings, the steps of prior desulfuration, fluorite dressing, iron dressing and columbium dressing and an efficient, strong-selectivity and feasible flotation agent combination are utilized for sequentially dressing out pyrite ore, fluorite, iron ore and the columbium mineral, so that the aim of recovering useful minerals from the rare earth tailings is achieved, separation of the columbium mineral from gangue minerals is achieved and high-quality and high-recovery columbium concentrate can be obtained.

Description

technical field [0001] The invention relates to an ore dressing process for recovering niobium minerals from rare earth tailings in Baotou Mine, in particular to a beneficiation process for recovering niobium minerals in rare earth tailings in Baotou Mine, and belongs to the technical field of mining engineering. Background technique [0002] The niobium reserves of Baiyan Obo Mine account for more than 95% of my country, and it is an important niobium resource base. However, due to the low niobium content, fine particle size of niobium minerals, many types of niobium minerals, and relatively scattered distribution, it has brought great challenges to the beneficiation of niobium minerals. Difficulty, so far not recycled. Rare earth tailings Nb beneficiation in Baiyun Obo Mine 2 o 5 The content is about 0.2%, and the mineral symbiosis relationship is complex. The main useful minerals include hematite, limonite, fluorite, pyrite, and niobium-containing minerals in the form of...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/012B03D1/008B03D1/01B03D101/02
Inventor 姬俊梅欧俊英侯玮任俊环刘素梅马艳萍王海洲江峰吕晓燕
Owner 包钢集团矿山研究院(有限责任公司)
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