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A method of asbestos detoxification treatment of waste slate and a method for treating asbestos asbestos obtained in this manner
A method of asbestos detoxification treatment of waste slate and a method for treating asbestos asbestos obtained in this manner
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机译:一种废石棉的石棉解毒处理方法和以这种方式获得的石棉处理方法
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摘要
Disclosed is a method of detoxifying asbestos of waste slate. The method includes concentrating the asbestos by introducing hydrochloric acid aqueous solution into waste slate powder to dissolve and remove a limestone component contained in the waste slate; and mixing the concentrated asbestos with oxalic acid and performing a low-temperature heat treatment. The waste slate is crushed and pulverized and powder of the crushed and pulverized waste slate is formed in a size in a range of 100 meshes to 300 meshes. The detoxified asbestos includes re-crystallized magnesium oxalate having a rhombohedral or amorphous shape.
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