发明名称 |
SULPHUR-CONTAINING FERTILIZERS AND PROCESS FOR THE PREPARATION THEREOF |
摘要 |
According to the present invention, there is provided a process for the manufacture of sulphur- containing fertilizer compositions, said process comprising the steps of: a) providing a slurry of at least one phosphate-based fertilizer material selected from the group consisting of ammonium phosphates, ammonium phosphate based nitrogen-phosphorus-potassium (NPK) compounds, super phosphates and partially acidulated phosphate rocks; b} bringing said slurry into contact with at least one surfactant and elemental sulphur; and c) introducing the mixture obtained in step b) into a granulator unit in order to obtain granules of the fertilizer composition, wherein the elemental sulphur is present in an amount in the range of form 1 to 25 wt.%, based on the total weight of the fertilizer composition The present invention also provides a fertilizer composition.
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申请公布号 |
CA2749800(A1) |
申请公布日期 |
2010.08.05 |
申请号 |
CA20102749800 |
申请日期 |
2010.01.29 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
ANTENS, JANY BIRGITTA MARIA;GARCIA MARTINEZ, RAFAEL ALBERTO;LAMBERT, REGINALD;O'BRIEN, JASON TREVOR;REYNHOUT, MARINUS JOHANNES;VERBIST, GUY LODE MAGDA MARIA;WOODRUFFE, JOHN |
分类号 |
C05B1/00;C05B7/00;C05D9/00;C05G5/00 |
主分类号 |
C05B1/00 |
代理机构 |
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