Method for preparing ultrafine activated phosphorusore compound fertilizer
Title：
Method for preparing ultrafine activated phosphorusore compound fertilizer
Application Number：
 200610113874
Application Date：
 2006/10/20
Announcement Date：
 2007/03/28
Pub. Date：
 2007/12/19
Publication Number：
 1935749
Announcement Number：
 100355706
Grant Date：
 2007-12-19
Granted Pub. Date：
 2007-12-19
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C05G 1/00, C05B 13/02
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
Key Words：
 ultrafine activated, phosphorusore compound fertilizer, preparing method
Abstract：
 The invention is an ultrafine activated phosphorite compound fertilizer preparing method, crushing raw material into coarse powder by crusher and universal mill, and then crushing the coarse powder into ultrafine phosphorite powder as premix by ball mill or vibration mill; adding additive and humic acid in the premix and making high energy activation treatment by blending mill or vibration mill, making concentrated prilling and making the product. And the invention mechanically mills phosphorite by high input energy, improves chemical activity of apatite in phosphorite by mechano-chemical activation, and improves the releast- sustained speed of phosphor compounds in soil. And the prepared compound fertilizer has fast effect, long-time stability, and soil improving effect. And the invention is a good phosphorite compound fertilizer preparing method.
Claim：
Priority：
PCT：
LegalStatus：

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