发明公开
- 专利标题： A method of preparing chlorate
- 专利标题（中）： Verfahren zur Herstellung von Chlorat。
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申请号： EP91850127.1申请日： 1991-05-15
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公开(公告)号： EP0459961A2公开(公告)日： 1991-12-04
- 发明人: Wide, Ann , Widmark, Per
- 申请人： EKA NOBEL AB
- 申请人地址： S-445 01 Bohus SE
- 专利权人： EKA NOBEL AB
- 当前专利权人： EKA NOBEL AB
- 当前专利权人地址： S-445 01 Bohus SE
- 代理机构： Schöld, Zaid
- 优先权： SE9001927 19900529
- 主分类号： C01B11/14
- IPC分类号： C01B11/14 ; C25B15/08 ; C25B1/34 ; C25B1/26
摘要：
The invention discloses a method in the electrolytic production (1) of alkali metal chlorate which is recovered by crystallization (3) and separation (9) of the crystals from a solution recycled to the electrolysis process (1). A given proportion of the crystals formed are separated (6) and removed from the mother liquor after they have been in contact with the mother liquor for a shorter period of time than the remaining crystals, whereby they obtain a sulphate content which is higher than in the crystals that have been in contact with the mother liquor for a longer period of time.
公开/授权文献
- EP0459961B1 A method of preparing chlorate 公开/授权日：1994-12-07
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