Method for removing magnetic impurities from tantalum-niobium waste ores by utilizing combined magnetic separation
A technology of magnetic impurities and magnetic separation, applied in chemical instruments and methods, wet separation, high-gradient magnetic separators, etc., to achieve the effects of increasing economic benefits, high-efficiency separation, and simple process methods
Inactive Publication Date: 2017-02-08
江西领辉科技有限公司
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Problems solved by technology
In the field of combined process removal of magnetic impurities, there is no domestic precedent for using three-pass combined magnetic separation process technology to remove magnetic impurities, especially iron, from tantalum and niobium waste ores
Method used
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Embodiment Construction
[0041] After the permanent magnetic iron removal of the present invention, it is fed into the middle magnetic separator for magnetic fluid separation, and the magnetic ore pulp and the non-magnetic ore pulp are sorted out, which are respectively fed into different gravity separation units, and the tantalum and niobium concentrates are obtained after the magnetic ore pulp is re-separated. Mineral powder and tailings slurry enter the buffer tank, and finally through the water circulation system to obtain circulating clear water for circular production; while the sewage is subjected to sedimentation and pressure filtration to obtain bottom material sand, which can be used as building raw materials and ceramic bottom materials. The non-magnetic pulp is concentrated after gravity separation and subjected to strong magnetic separation.
[0042] The strong magnetic magnetic separation of the present invention is aimed at the non-magnetic ore pulp after the magnetic separation of Zhong...
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Abstract
The invention provides a method for removing magnetic impurities from tantalum-niobium waste ores by utilizing combined magnetic separation. The method comprises the following steps: by taking the tantalum-niobium waste ores or tailings as raw materials and adopting a magnetic separation method, grinding and screening the tantalum-niobium tailings and / or the tantalum-niobium waste ores; removing iron and impurities in advance by adopting wet type low-intensity permanent magnetic separation to obtain a tantalum-niobium gravity-separated ore material; separating a magnetic ore material from a nonmagnetic ore material of the tantalum-niobium gravity-separated ore material by adopting a combined magnetic separation method; subsequently extracting tantalum-niobium ore resource products by adopting a magnetic separation, gravity separation and floatation separation combined process, wherein the resource products include lithium feldspar powder, lithionite concentrate powder and tantalum-niobium concentrate powder; the combined magnetic separation respectively includes three stages of magnetic separation processes, including permanent magnetic separation, medium-intensity magnetic separation and high-intensity magnetic separation in sequence. The method provided by the invention is obvious in economic benefits and technical benefits, small in treatment of three wastes and high in recovery rate of tantalum-niobium ore resource products. The invention provides a combined magnetic separation method, which is simple in process and quite high in efficiency, for removing magnetic impurities in tantalum-niobium waste ores. The combined magnetic separation method is obvious in economic benefits and technical benefits, small in treatment of three wastes and high in recovery rate of tantalum-niobium ore resource products.
Description
[0001] Technical field: [0002] The invention relates to a method for removing impurities in the process of recovering tantalum-niobium concentrate ore and other mineral materials from tantalum-niobium tailings and waste ores, in particular to a method for removing magnetic impurities in tantalum-niobium waste ores by using combined magnetic separation. [0003] Background technique: [0004] Tantalum and niobium are two important rare metal element materials, which have important strategic and economic value. With the development of economy, the consumption of various electronic products continues to grow, which makes the industrial demand for tantalum and niobium increase sharply, which intensifies the demand for tantalum and niobium. , The tightness of the supply of niobium mineral resources. my country has rich reserves of tantalum and niobium raw materials, of which tantalum accounts for 20% of the world's reserves, and niobium accounts for about 15% of the world's reserv...
Claims
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IPC IPC(8): B03B7/00B03C1/025
CPCB03B7/00B03C1/025
Inventor 毛若明熊洪袁显才代爽毛树林
Owner 江西领辉科技有限公司
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