IT976757B - Procedimento ed impianto per pro durre acido fosforoso - Google Patents
Procedimento ed impianto per pro durre acido fosforosoInfo
- Publication number
- IT976757B IT976757B IT47530/73A IT4753073A IT976757B IT 976757 B IT976757 B IT 976757B IT 47530/73 A IT47530/73 A IT 47530/73A IT 4753073 A IT4753073 A IT 4753073A IT 976757 B IT976757 B IT 976757B
- Authority
- IT
- Italy
- Prior art keywords
- durre
- pro
- plant
- procedure
- phosphorous acid
- Prior art date
Links
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 title 1
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (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 (1)
| Publication Number | Publication Date |
|---|---|
| IT976757B true IT976757B (it) | 1974-09-10 |
Family
ID=5832494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT47530/73A IT976757B (it) | 1972-01-07 | 1973-01-05 | Procedimento ed impianto per pro durre acido fosforoso |
Country Status (8)
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 |
| AU1052095A (en) * | 1993-11-10 | 1995-05-29 | 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 CA CA160,672A patent/CA983669A/en not_active Expired
- 1973-01-05 BE BE793712D patent/BE793712A/xx not_active IP Right Cessation
- 1973-01-05 IT IT47530/73A patent/IT976757B/it active
- 1973-01-05 FR FR7300288A patent/FR2167704B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL174133C (nl) | 1984-05-01 |
| NL174133B (nl) | 1983-12-01 |
| FR2167704B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-05-14 |
| CH584653A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-02-15 |
| BE793712A (fr) | 1973-07-05 |
| FR2167704A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-08-24 |
| CA983669A (en) | 1976-02-17 |
| DE2200653A1 (de) | 1973-07-19 |
| DE2200653B2 (de) | 1977-06-23 |
| NL7300137A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-07-10 |
| US3859419A (en) | 1975-01-07 |
| GB1374545A (en) | 1974-11-20 |
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