发明名称 |
Sulphur-containing fertilizers and process for the preparation thereof |
摘要 |
Process for the manufacture of sulphur- containing fertilizer compositions, 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 anionic surfactant and elemental sulphur; c) introducing the mixture obtained in step b} into a granulator unit in order to obtain granules of the fertilizer composition, wherein the at least one phosphate-based fertilizer material is present in an amount in the range of at least 50 wt. %, the elemental sulphur is present in an amount in the range of from 1 to 25 wt. % and the anionic surfactant is present in an amount in the range of from 0.001 to 3 wt. % based on the overall weight of the fertilizer composition. The present invention also provides a fertilizer composition. |
申请公布号 |
AU2010209688(B2) |
申请公布日期 |
2013.05.23 |
申请号 |
AU20100209688 |
申请日期 |
2010.01.29 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
ANTENS, JANY BIRGITTA MARIA;ASHTEKAR, SUNIL;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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地址 |
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