Original document(4 pages)  中文版
    The mixture of ferrophosphorus and mineral calcium carbonate is oxidized by calcination, the reactants are then extracted by inorganic acid. Neutralizing the extract solution with lime to pH=6-7 or reacting with mineral calcium carbonate under heating, the crude product for feeding purpose can be abtained after filtration and drying. This product comprises effective P2O5 38-420%, CaO 30-33%, Fe2O5 is less than 3%, F is less than 0.1% and As is less than 0.002%.
Application Number
申请号		 85104780 Application Date
申请日		 1985.06.14
Title 名称 Calcium hydrophosphate forage from ferrophosphorus
Publication Number
公开号		 1005666 Publication Date
公开日		 1986.12.10
Approval Pub. Date Granted Pub. Date
International Classification 分类号 C01B25/32
Applicant(s) Name
申请人		 Guangxi Phosphates Chemical Industry Factory
Address 地址
Inventor(s) Name 发明人
Attorney & Agent 代理人 YANG SHIMO
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