Title: Production process of active superphosphate fertilizer
Application Number: 91102592 Application Date: 1991.04.25
Publication Number: 1066051 Publication Date: 1992.11.11
Approval Pub. Date: Granted Pub. Date: 1996.08.14
International Classifi-cation: C05B13/02,C05G3/00
Applicant(s) Name: Li Jianghua Address:
Inventor(s) Name:
Attorney & Agent: LIU GUOPING
Abstract:
     This active calcium superphosphate fertilizer is prepared up from pyrogenous phosphate rock and natural zeolite by mixing them together. Its technological steps include breaking pyrogenous phosphate rock, burning it in rotary furnace, cooling to 300 deg.C, mixing it with broken natural zeolite, static cooling, pulverizing the mixture into powder of 100 meshes; checking p-content in powder and mixing the powder with natural zeolite in a certain proportion until its phosphoric anhydride content reaches 18%.
Time: 6