Patent
Desulfurizer for coal washing
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TLDR
In this article, a desulfurizer for coal washing is described, which can be used for complexing and cleaning inorganic sulfur in the coal and generating the sulfides and other harmful matters into harmful matters via chemical reaction.Abstract:
The invention belongs to the technical field of desulfurizers, and particularly relates to a desulfurizer for desulfurizing of coal washing, which aims at providing a desulfurizer with the purposes ofeffectively complexing and cleaning inorganic sulfur in the coal and generating the sulfides and other harmful matters into harmful matters via chemical reaction. The desulfurizer is prepared from the following raw materials in parts by weight according: 10 to 25 parts of sodium hypochlorite, 12 to 20 parts of ammonium persulfate, 5 to 12 parts of sodium glycollate, 6 to 10 parts of sodium acetate, 7 to 12 parts of potassium citrate, 6 to 8 parts of sodium gluconate, 5 to 9 parts of ethylenediamine tetraacetic acid, 1 to 12 parts of ferric sulfate, 10 to 15 parts of triethanolamine, 3 to 9 parts of sodium dichromate, 3 to 5 parts of aluminum ferric chloride, 1 to 2 parts of urea, 3 to 5 parts of sodium bicarbonate, 0.1 to 0.5 part of octadecyl trimethyl ammonium chloride, 0.5 to 0.8 partof sodium dodecyl benzene sulfonate, 0.2 to 0.4 part of a dispersant, and 50 to 90 parts of water.read more
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Coal washing and desulfurizing agent composition and preparation method thereof
TL;DR: In this paper, an adjuvant for coal washing and desulfurizing is described. The adjuant is prepared from the following raw materials in parts by weight: 20-25 parts of NaClO, 12-15 parts of ammonium persulfate (NH4)S2O8, 8-12 parts of sodium glycollate HOCH2COONa.