Method for preparing barium sulfate
A technology for precipitating barium sulfate and barium sulfide, applied in the direction of calcium/strontium/barium sulfate, etc., can solve the problems of high energy consumption, unfavorable environmental protection, unstable product quality, etc., achieve environmental protection improvement, save washing water, and good reaction effect Effect
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[0012] 1. The roasting process is to separate and crush the barite and anthracite, and put them into the roasting kiln at a weight ratio of 100:25. The coal powder is blown into the kiln head and the material moves in reverse, and is roasted into barium sulfide black ash.
[0013] 2. It is leaching. Send the black ash into the leaching tank, heat water to dissolve and leach, and make 15-16% barium sulfide solution and bottom slag. The bottom slag is washed to make barium-based bricks, and the solution is sent to Into the compounding process, only a precision filter is added to the clarified BaS solution, and a nano-scale filter cloth is built in to completely remove the suspended matter in the solution.
[0014] 3. Process of chemical nitration: After dissolving Glauber’s salt (mostly using Yuanming powder) in the mixing tank, the traditional precipitation method is changed to pressure filtration method, and the filter cloth is made of multi-layer vinylon cloth to completely re...
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