Method and system for preparing barium sulfate by using barium slag

A technology of barium sulfate and barium slag, which is applied in the field of comprehensive recycling process system, can solve the problems of polluting the environment, failing to meet environmental protection discharge standards, precipitation and precipitation obstacles, etc., and achieves simple operation, reduced conversion agent consumption, and good detoxification effect
CN109970089APending Publication Date: 2019-07-05长沙中硅环保科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
长沙中硅环保科技有限公司
Publication Date
2019-07-05

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Abstract

The invention discloses a method and system for preparing barium sulfate by using barium slag. The method includes a step of grinding, soaking and conversion, a step of gravity flotation, a step of solution impurity removal and recycling, and the like. The system comprises a barium slag feeding system, a grinding, soaking and conversion system, a gravity flotation system, a solution impurity removal and recycling system and a building raw material application system. A cheap converting agent is adopted for grinding, soaking and conversion to convert soluble barium in the barium slag into an insoluble matter so that toxicity of the barium slag is removed, the barium slag becomes a nontoxic building raw material, and a high amount of a BaSO4 product can be recovered. The method and the system have advantages of a short process, simple operation, and capability of being economical, environmentally friendly, clean and efficient, are suitable for industrial production of barium slag detoxification, and accord with resource recycling.
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Description

technical field

[0001] The invention relates to a process system and method for comprehensive recycling of barium slag produced in the production process of barium carbonate by using barite as raw material, in particular to a method and system for preparing barium sulfate by using barium slag, which belongs to resource recycling and utilization Environmental protection technology field. Background technique

[0002] Using barite ore as raw material to prepare barium carbonate production process, including the barite ore is crushed and adopts carbothermal reduction method, and the BaSO 4 Convert into BaS, then add water to the clinker formed by calcination, BaS dissolves into the solution, and filters to obtain the BaS-containing leachate-barium milk, barium milk is carbonized and precipitated to precipitate barium carbonate products, barium carbonate is widely used in metallurgy, chemical industry, building materials, etc. field. After clinker leaching, the slurry is separ...

Claims

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