BE831000A - Procede de purification de l'acide phosphorique - Google Patents
Procede de purification de l'acide phosphoriqueInfo
- Publication number
- BE831000A BE831000A BE157980A BE157980A BE831000A BE 831000 A BE831000 A BE 831000A BE 157980 A BE157980 A BE 157980A BE 157980 A BE157980 A BE 157980A BE 831000 A BE831000 A BE 831000A
- Authority
- BE
- Belgium
- Prior art keywords
- phosphoric acid
- emi
- solution
- solvent
- water
- Prior art date
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
- C01B25/46—Preparation involving solvent-solvent extraction
- C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
- C01B25/464—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound the extracting agent being an ether or a mixture of ethers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2432472A DE2432472C3 (de) | 1974-07-06 | 1974-07-06 | Verfahren zur Reinigung von wäßriger Phosphorsäure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE831000A true BE831000A (fr) | 1976-01-05 |
Family
ID=5919860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE157980A BE831000A (fr) | 1974-07-06 | 1975-07-04 | Procede de purification de l'acide phosphorique |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT359975B (tr) |
| BE (1) | BE831000A (tr) |
| DE (1) | DE2432472C3 (tr) |
| IN (1) | IN141742B (tr) |
| SU (1) | SU747411A3 (tr) |
| TR (1) | TR20238A (tr) |
| ZA (1) | ZA753711B (tr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2447348A1 (fr) * | 1979-01-24 | 1980-08-22 | Rhone Poulenc Ind | Procede de purification d'un acide phosphorique impur |
-
1974
- 1974-07-06 DE DE2432472A patent/DE2432472C3/de not_active Expired
-
1975
- 1975-06-10 ZA ZA00753711A patent/ZA753711B/xx unknown
- 1975-06-12 IN IN1158/CAL/75A patent/IN141742B/en unknown
- 1975-06-20 TR TR20238A patent/TR20238A/tr unknown
- 1975-07-04 BE BE157980A patent/BE831000A/fr not_active IP Right Cessation
- 1975-07-04 AT AT516575A patent/AT359975B/de not_active IP Right Cessation
- 1975-07-04 SU SU752151508A patent/SU747411A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2432472C3 (de) | 1979-02-01 |
| ATA516575A (de) | 1980-05-15 |
| SU747411A3 (ru) | 1980-07-23 |
| AT359975B (de) | 1980-12-10 |
| TR20238A (tr) | 1980-11-01 |
| IN141742B (tr) | 1977-04-09 |
| DE2432472B2 (de) | 1978-05-18 |
| ZA753711B (en) | 1976-05-26 |
| DE2432472A1 (de) | 1976-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7045111B1 (en) | High yield co-production of anhydrous hydrogen bromide and sodium bisulfate | |
| US4254283A (en) | Process for preparing adipic acid with recovery of glutaric and succinic acids | |
| FR2467185A1 (fr) | Procedes de separation et de purification du resorcinol et de l'hydroquinone | |
| EP1289948B1 (fr) | Procede de purification de lactames | |
| BE831000A (fr) | Procede de purification de l'acide phosphorique | |
| EP2222633B1 (fr) | Procede de preparation d'un sel de l'acide trifluoromethanesulfiniques. | |
| EP0121466B1 (fr) | Procédé de décomposition d'un complexe d'acide orthobenzoyl-benzoique, de fluorure d'hydrogène et de trifluorure de bore | |
| FR2505202A1 (fr) | Procede de recuperation de matieres solides dissoutes a partir d'une solution aqueuse les contenant | |
| US20070231238A1 (en) | Method and plant for depleting sodium thiocyanate in washing liquors and for obtaining pure sodium thiocyanate | |
| CA2225798C (fr) | Procede de purification par extraction d'un milieu liquide | |
| CN112694409B (zh) | 一种回收废水中三乙胺的方法和装置 | |
| FR2780969A1 (fr) | Procede de separation de l'acide hydroxymethylthiobutyrique | |
| US3996336A (en) | Purification of phosphoric acid | |
| US3933929A (en) | Process for the purification of p-nitrophenol | |
| CN218740262U (zh) | 一种磷酸盐提纯系统 | |
| JPS5851939B2 (ja) | バニリンの製造法 | |
| SU335231A1 (ru) | Способ очистки ванилина | |
| BE678415A (tr) | ||
| BE707232A (tr) | ||
| EP0222673A1 (fr) | Procédé de préparation de sels alcalins de l'acide trifluoroacétique à l'état anhydre et cristallisé | |
| CN117466843A (zh) | 分离提纯5-羟甲基糠醛的方法 | |
| BE521900A (tr) | ||
| WO2010136838A1 (en) | Method for processing crude glycerol waste streams | |
| BE674674A (tr) | ||
| BE407144A (tr) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: HOECHST A.G. Effective date: 19920731 |