Process method for extracting ceramic raw material from low-grade tantalum-niobium ore secondary tailings
A technology of ceramic raw materials and process methods, applied in the production of ceramic materials, clay products, applications, etc., can solve the problems of environmental pollution by waste materials, achieve the effects of protecting the environment and resources, improving self-sufficiency, and saving resources
Active Publication Date: 2020-07-10
江西领辉科技有限公司
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Problems solved by technology
However, only tantalum-niobium ore waste rocks are used to extract lepidolite, and other wastes are not treated, and some wastes will still pollute the environment.
Method used
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Experimental program
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Embodiment 1
[0023] The present invention is a process for extracting ceramic raw materials from secondary tailings of low-grade tantalum-niobium ore. The low-grade tantalum-niobium ore tailings and high-silicon quartz materials extracted from tantalum-niobium ore waste rocks in a certain place in Yichun City are used as the Raw material, it adopts following processing steps:
[0024] 1) Mixing of raw materials, the low-grade tantalum-niobium ore tailings and high-silicon quartz material raw materials are first fully mixed in proportion, and after crushing, they are fully mixed at a temperature of 45-80°C. The formed components include a mass percentage concentration of 16-20%Al 2 o 3 , 2.0-4.0% K 2 O, 3.0-7.0% Na 2 O, 0.1-0.5% Li 2 O mixed raw material wet material;
[0025] 2) Concentrate and precipitate, place the mixed raw material wet material in step 1) in the concentrated mixed sedimentation tank, fully stir and mix to form a mixed slurry, precipitate and filter, and obtain th...
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The invention discloses a method for solving the outlet problem of bulk mine industrial waste tantalum-niobium ore barren rock. The invention provides a process method for recycling and utilizing of low-grade tantalum-niobium ore beneficiation secondary tailings. The low-grade tantalum-niobium ore tailings extracted from tantalum-niobium ore waste rocks and a high-silicon quartz material are usedas raw materials; and feedstock mixing, concentrated precipitation, extracting ceramic raw materials by filter pressing and drainage and other processes are carried out. The expansion coefficient of the secondary tailings of the low-grade tantalum-niobium ore is adjusted; solid waste, namely low-grade tantalum-niobium ore beneficiation secondary tailings, which cannot be utilized due to large volume expansion originally is changed into ceramic raw materials with qualified expansion coefficients, the environment and resources are protected, the self-sufficiency rate of strategic mineral resources is increased, the emission of tailings is greatly reduced, and the method has the social effects of resource saving, energy conservation, emission reduction and environmental friendliness.
Description
[0001] Technical field The present invention belongs to the technical field of solid waste recycling in the technical field of resources and environment, and mainly relates to a method for extracting valuable raw materials from tailings of low-grade tantalum-niobium ore, and specifically relates to a method for beneficiation of low-grade tantalum-niobium ore Secondary tailings recovery and utilization process. Background technique [0002] Tantalum and niobium are two important rare metal element materials, which have important strategic and economic value. With the development of economy, the demand for tantalum and niobium industry has increased significantly, which has exacerbated the tension in the supply of tantalum and niobium mineral resources. . In my country, tantalum-niobium ore is mainly produced in Yichun in Jiangxi, Nanping in Fujian and Dongfang tantalum-niobium ore in Yunnan. In particular, the tantalum and niobium mining area in Yichun, Jiangxi has an area o...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C04B33/132C04B33/16C04B35/626
CPCC04B33/1324C04B33/16C04B35/62605C04B35/62635C04B2235/5216Y02P40/60
Inventor 刘继承袁显才艾伟明杨健晏志刚
Owner 江西领辉科技有限公司