NL7300137A - - Google Patents
Info
- Publication number
- NL7300137A NL7300137A NL7300137A NL7300137A NL7300137A NL 7300137 A NL7300137 A NL 7300137A NL 7300137 A NL7300137 A NL 7300137A NL 7300137 A NL7300137 A NL 7300137A NL 7300137 A NL7300137 A NL 7300137A
- Authority
- NL
- Netherlands
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722200653 DE2200653C3 (de) | 1972-01-07 | Verfahren und Vorrichtung zur Herstellung von phosphoriger Säure |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL7300137A true NL7300137A (de) | 1973-07-10 |
| NL174133B NL174133B (nl) | 1983-12-01 |
| NL174133C NL174133C (nl) | 1984-05-01 |
Family
ID=5832494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7300137,A NL174133C (nl) | 1972-01-07 | 1973-01-04 | Werkwijze en inrichting ter bereiding van fosforigzuur. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3859419A (de) |
| BE (1) | BE793712A (de) |
| CA (1) | CA983669A (de) |
| CH (1) | CH584653A5 (de) |
| FR (1) | FR2167704B1 (de) |
| GB (1) | GB1374545A (de) |
| IT (1) | IT976757B (de) |
| NL (1) | NL174133C (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3714657A1 (de) * | 1987-05-02 | 1988-11-10 | Hoechst Ag | Verfahren zur reinigung von phosphoriger saeure |
| WO1995013285A1 (en) * | 1993-11-10 | 1995-05-18 | E.I. Du Pont De Nemours And Company | Process for the preparation of phosphorous acid/carboxylic acid mixed anhydrides and anhydrous phosphorous acid |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2670274A (en) * | 1951-10-25 | 1954-02-23 | Monsanto Chemicals | Method of producing orthophosphoric acid |
| DE1206406B (de) * | 1964-09-19 | 1965-12-09 | Knapsack Ag | Verfahren zur Herstellung von phosphoriger Saeure |
-
1972
- 1972-12-22 CH CH1879272A patent/CH584653A5/xx not_active IP Right Cessation
- 1972-12-29 US US319464A patent/US3859419A/en not_active Expired - Lifetime
-
1973
- 1973-01-01 GB GB1873A patent/GB1374545A/en not_active Expired
- 1973-01-04 NL NLAANVRAGE7300137,A patent/NL174133C/xx not_active IP Right Cessation
- 1973-01-05 BE BE793712D patent/BE793712A/xx not_active IP Right Cessation
- 1973-01-05 FR FR7300288A patent/FR2167704B1/fr not_active Expired
- 1973-01-05 CA CA160,672A patent/CA983669A/en not_active Expired
- 1973-01-05 IT IT47530/73A patent/IT976757B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| NL174133B (nl) | 1983-12-01 |
| US3859419A (en) | 1975-01-07 |
| FR2167704A1 (de) | 1973-08-24 |
| CH584653A5 (de) | 1977-02-15 |
| IT976757B (it) | 1974-09-10 |
| CA983669A (en) | 1976-02-17 |
| DE2200653B2 (de) | 1977-06-23 |
| BE793712A (fr) | 1973-07-05 |
| DE2200653A1 (de) | 1973-07-19 |
| FR2167704B1 (de) | 1976-05-14 |
| NL174133C (nl) | 1984-05-01 |
| GB1374545A (en) | 1974-11-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| V4 | Discontinued because of reaching the maximum lifetime of a patent |