GB1137075A - Process for removing titanium and vanadium from phosphoric acid - Google Patents
Process for removing titanium and vanadium from phosphoric acidInfo
- Publication number
- GB1137075A GB1137075A GB2195566A GB2195566A GB1137075A GB 1137075 A GB1137075 A GB 1137075A GB 2195566 A GB2195566 A GB 2195566A GB 2195566 A GB2195566 A GB 2195566A GB 1137075 A GB1137075 A GB 1137075A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphoric acid
- solution
- aqueous
- organic
- vanadium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/234—Purification; Stabilisation; Concentration
Abstract
1,137,075. Purification of phosphoric acid. DOW CHEMICAL CO. 17 May, 1966 [21 May, 1965], No. 2195.5/66. Heading C1A. Aqueous phosphoric acid solution is treated for the removal of titanium and vanadium therefrom by extracting the solution with an organic solvent not soluble in water to more than 10 wt. per cent of the mixture, contacting the thus-obtained organic solution with an aqueous solution containing 0À2-30 wt. per cent of hydrogen peroxide to obtain an organic phase containing the phosphoric acid and an aqueous phase containing the titanium and vanadium, and separating these two phases. Aqueous phosphoric acid or sodium phosphate are recovered from the organic phase by washing it with water or sodium hydroxide solution respectively. The hydrogen peroxide is applied in a volume ratio of 1 : 10 to 1 : 50 in relation to the organic solution. The organic solvent may be a trialkyl phosphate, an aliphatic alcohol, cyclohexanol, methyloyolohexanol, methylcyclohexanone, an ester, an ether or an amide, and may optionally be admixed with a diluent such as toluene, " Varsol " (Registered Trade Mark), benzene, decane, xylene, kerosene or mesitylene. The process is especially suitable for the treatment of phosphoric acid obtained by treating phosphate rock or ore with HC1, H 2 SO 4 , or HNO 3 .
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45782365A | 1965-05-21 | 1965-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1137075A true GB1137075A (en) | 1968-12-18 |
Family
ID=23818201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2195566A Expired GB1137075A (en) | 1965-05-21 | 1966-05-17 | Process for removing titanium and vanadium from phosphoric acid |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE681315A (en) |
BR (1) | BR6679649D0 (en) |
DE (1) | DE1567456A1 (en) |
GB (1) | GB1137075A (en) |
IL (1) | IL25610A (en) |
-
1966
- 1966-04-19 IL IL2561066A patent/IL25610A/en unknown
- 1966-04-25 DE DE19661567456 patent/DE1567456A1/en active Pending
- 1966-05-17 GB GB2195566A patent/GB1137075A/en not_active Expired
- 1966-05-19 BR BR17964966A patent/BR6679649D0/en unknown
- 1966-05-20 BE BE681315D patent/BE681315A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
IL25610A (en) | 1969-11-30 |
DE1567456A1 (en) | 1970-08-06 |
BE681315A (en) | 1966-11-21 |
BR6679649D0 (en) | 1973-09-11 |
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