FR2139000B1 - - Google Patents
Info
- Publication number
- FR2139000B1 FR2139000B1 FR7218552A FR7218552A FR2139000B1 FR 2139000 B1 FR2139000 B1 FR 2139000B1 FR 7218552 A FR7218552 A FR 7218552A FR 7218552 A FR7218552 A FR 7218552A FR 2139000 B1 FR2139000 B1 FR 2139000B1
- Authority
- FR
- France
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2125587A DE2125587C3 (de) | 1971-05-24 | 1971-05-24 | Verfahren zur Herstellung von Hypophosphiten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2139000A1 FR2139000A1 (enExample) | 1973-01-05 |
| FR2139000B1 true FR2139000B1 (enExample) | 1980-10-17 |
Family
ID=5808709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7218552A Expired FR2139000B1 (enExample) | 1971-05-24 | 1972-05-24 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3888971A (enExample) |
| BE (1) | BE783762A (enExample) |
| CA (1) | CA968925A (enExample) |
| CH (1) | CH581074A5 (enExample) |
| DE (1) | DE2125587C3 (enExample) |
| FR (1) | FR2139000B1 (enExample) |
| GB (1) | GB1371566A (enExample) |
| IT (1) | IT957992B (enExample) |
| NL (1) | NL7206845A (enExample) |
| SE (1) | SE364695B (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2549084C3 (de) * | 1975-11-03 | 1981-04-30 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Herstellung von Phosphin |
| DE2632316C3 (de) * | 1976-07-17 | 1981-12-24 | Hoechst Ag, 6000 Frankfurt | Verfahren zur kontinuierlichen Herstellung von Phosphin |
| DE2840147A1 (de) * | 1978-09-15 | 1980-03-27 | Hoechst Ag | Verfahren zur kontinuierlichen herstellung von phosphan |
| DE3207716A1 (de) * | 1982-03-04 | 1983-09-08 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von alkalihypophosphit-loesungen |
| JPH07110764B2 (ja) * | 1990-05-30 | 1995-11-29 | 燐化学工業株式会社 | アルカリ金属次亜リン酸塩の製造方法 |
| JPH088301B2 (ja) * | 1990-06-07 | 1996-01-29 | 株式会社東芝 | 半導体装置の製造方法 |
| FR2739372B1 (fr) * | 1995-09-29 | 1997-10-31 | Cesa Sa | Procede de preparation d'hypophosphite de nickel |
| US9976010B2 (en) | 2012-04-06 | 2018-05-22 | Rhodia Operations | Process for the production of hypophosphite salts |
| EP4116309A1 (en) * | 2021-07-07 | 2023-01-11 | Clariant International Ltd | Sustainably produced dialkylphosphinic salts |
| CN117550569B (zh) * | 2023-11-28 | 2025-09-19 | 云南云天化股份有限公司 | 一种生产次磷酸的方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH322980A (fr) * | 1955-07-30 | 1957-07-15 | Fonte Electr S A | Procédé pour la préparation d'hypophosphites par traitement de phosphore en milieu alcalin. |
| CH322981A (fr) * | 1956-09-10 | 1957-07-15 | Fonte Electr S A | Procédé pour la préparation d'hypophosphites. |
| CH360378A (fr) * | 1957-06-18 | 1962-02-28 | Fonte Electr S A | Procédé de purification d'une solution d'hypophosphite alcalin contenant comme impureté un phosphite alcalin |
| US2977192A (en) * | 1958-08-26 | 1961-03-28 | Fmc Corp | Process for the production of phosphine and sodium hypophosphite |
| US3378342A (en) * | 1964-12-21 | 1968-04-16 | Monsanto Co | Process for preparing phosphites |
-
1971
- 1971-05-24 DE DE2125587A patent/DE2125587C3/de not_active Expired
-
1972
- 1972-04-25 GB GB1917872A patent/GB1371566A/en not_active Expired
- 1972-05-16 CA CA142,245A patent/CA968925A/en not_active Expired
- 1972-05-19 NL NL7206845A patent/NL7206845A/xx not_active Application Discontinuation
- 1972-05-19 BE BE783762A patent/BE783762A/xx not_active IP Right Cessation
- 1972-05-22 US US255442A patent/US3888971A/en not_active Expired - Lifetime
- 1972-05-22 IT IT50401/72A patent/IT957992B/it active
- 1972-05-23 SE SE06697/72A patent/SE364695B/xx unknown
- 1972-05-24 FR FR7218552A patent/FR2139000B1/fr not_active Expired
- 1972-05-24 CH CH764272A patent/CH581074A5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA968925A (en) | 1975-06-10 |
| SE364695B (enExample) | 1974-03-04 |
| GB1371566A (en) | 1974-10-23 |
| US3888971A (en) | 1975-06-10 |
| IT957992B (it) | 1973-10-20 |
| CH581074A5 (enExample) | 1976-10-29 |
| DE2125587B2 (de) | 1974-01-17 |
| DE2125587A1 (de) | 1972-12-07 |
| DE2125587C3 (de) | 1974-08-15 |
| NL7206845A (enExample) | 1972-11-28 |
| FR2139000A1 (enExample) | 1973-01-05 |
| BE783762A (fr) | 1972-11-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| ST | Notification of lapse | ||
| RC | Opposition against decision of lapse | ||
| DA | Annulment of decision of lapse | ||
| ST | Notification of lapse |