Title: Mixed phosphate fertilizer
Application Number: 96102178 Application Date: 1996.03.12
Publication Number: 1159436 Publication Date: 1997.09.17
Approval Pub. Date: Granted Pub. Date: 2001.04.11
International Classifi-cation: C02F11/00,C05B17/00
Applicant(s) Name: Yunnan Phosphate Fertilizer Plant Address: 650113
Inventor(s) Name: Chen Chongde, Wang Yingquan
Attorney & Agent: ZHAN XIHAN WU PING
Abstract:
     The present invention discloses a mixed phosphoric fertilizer produced from phosphorous sludge. It is characterized by that the phosphorous sludge material is dried to that its water content is less than or equal to 12%, then according to the effective P2O5 content in original sludge material a neutralization regulating agent is added according to a certain proportion, then the above-mentioned materials are processed by mixing, banking, curing and pulverizing to obtain the invented powder like or grain-like mixed phosphoric fertilizer in which effective P2O5 content is greater than or equal to 12%. Said invention uses the phosphorous waste material produced in the course of production of phosphoric fertilizer as raw material to produce the mixed phosphoric fertilizer, so that it not only can reduce environmental pollution, but also effectively save phosphorus source.
Time: 5