Invention Grant
- Patent Title: Method for preparing a suspension containing phosphate
- Patent Title (中): 制备含磷酸盐悬浮液的方法
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Application No.: US11579947Application Date: 2005-05-19
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Publication No.: US07901466B2Publication Date: 2011-03-08
- Inventor: Eija Saarikko , Juhani Poukari , Paula Ylinen , Anders Weckman
- Applicant: Eija Saarikko , Juhani Poukari , Paula Ylinen , Anders Weckman
- Applicant Address: FI Helsinki
- Assignee: Yara Suomi Oy
- Current Assignee: Yara Suomi Oy
- Current Assignee Address: FI Helsinki
- Agency: Birch Stewart Kolasch & Birch, LLP
- Priority: FI20040702 20040521
- International Application: PCT/FI2005/000232 WO 20050519
- International Announcement: WO2005/113470 WO 20051201
- Main IPC: B01D9/00
- IPC: B01D9/00
Abstract:
The invention relates to a method for preparing a suspension containing phosphate stepwise directly from raw materials, from phosphoric acid of fertilizer quality, a base and organic additives. In accordance with the method, the phosphoric acid is preneutralised with the base, the organic additives are added, nucleation is controlled and phosphate salts are cooling crystallised in order to form a suspension. The phosphate suspension prepared with the method of the invention is applicable to seed coating.
Public/Granted literature
- US20080022740A1 Method for Preparing a Suspension Containing Phosphate Public/Granted day:2008-01-31
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