发明名称 |
SETT ATT FRAMSTELLA EN RENAD VATMETODFOSFORSYRA |
摘要 |
Wet process phosphoric acid may be purified by solvent extraction to produce a product of greater purity and concentration than has hitherto been attainable by employing an acyclic hexanone, preferably methyl isobutyl ketone as the solvent. Preferably the extraction of the acid into the ketone and the release into water are carried out in 2 actual or theoretical counter - current stages. Alternatively the release may be carried out into an aqueous solution of a base. |
申请公布号 |
SE416799(B) |
申请公布日期 |
1981.02.09 |
申请号 |
SE19770002655 |
申请日期 |
1977.03.09 |
申请人 |
* ALBRIGHT & WILSON LTD |
发明人 |
T A * WILLIAMS;F M * CUSSONS |
分类号 |
C01B25/234;(IPC1-7):01B25/46 |
主分类号 |
C01B25/234 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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