发明名称 |
Granular coated particles containing urea and metal nitrate, and process for making the same |
摘要 |
Granular coated particles suitable for use alone or in combination with other fertilizer particles as an nitrogen-dispersing agricultural fertilizer, and a process for making the granular coated particles are disclosed. The granular coated particles include particles formed from at least one metal nitrate, and a first coating layer surrounding each of the metal nitrate particles. The first coating layer is formed from a mixture containing urea and at least one metal nitrate. The metal nitrate particles each is substantially free and discrete from other metal nitrate particles. The metal nitrate is preferably sodium nitrate or potassium nitrate.
|
申请公布号 |
US5938813(A) |
申请公布日期 |
1999.08.17 |
申请号 |
US19970788639 |
申请日期 |
1997.01.27 |
申请人 |
SQM NITRATOS, S.A. |
发明人 |
ARAYA, PATRICIO L.;LAUTERBACH, ARMIN R.;REYES, JUBITZA K.;HUEY, A. MICHAEL;STAFFORD, JAMES T.;JEFFREYS, DARREN L.;SHIRLEY, JR., A. RAY |
分类号 |
C05B7/00;C05G3/00;(IPC1-7):C05C5/00;C05C5/02 |
主分类号 |
C05B7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|