BR7703515A - Processo para produzir acidos carboxilicos alifaticos fosfinico-substituidos,acidos assim produzidos,e processo para tratar agua contendo dureza para prevenir a formacao de crostas - Google Patents
Processo para produzir acidos carboxilicos alifaticos fosfinico-substituidos,acidos assim produzidos,e processo para tratar agua contendo dureza para prevenir a formacao de crostasInfo
- Publication number
- BR7703515A BR7703515A BR7703515A BR7703515A BR7703515A BR 7703515 A BR7703515 A BR 7703515A BR 7703515 A BR7703515 A BR 7703515A BR 7703515 A BR7703515 A BR 7703515A BR 7703515 A BR7703515 A BR 7703515A
- Authority
- BR
- Brazil
- Prior art keywords
- aliphytic
- crusting
- phosphinic
- substituted
- produce
- Prior art date
Links
- 150000001735 carboxylic acids Chemical class 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/48—Phosphonous acids [RP(OH)2] including [RHP(=O)(OH)]; Thiophosphonous acids including [RP(SH)2], [RHP(=S)(SH)]; Derivatives thereof
- C07F9/4808—Phosphonous acids [RP(OH)2] including [RHP(=O)(OH)]; Thiophosphonous acids including [RP(SH)2], [RHP(=S)(SH)]; Derivatives thereof the acid moiety containing a substituent or structure which is considered as characteristic
- C07F9/4816—Acyclic saturated acids or derivatices which can have further substituents on alkyl
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
- C07F9/301—Acyclic saturated acids which can have further substituents on alkyl
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/701,785 US4088678A (en) | 1976-07-01 | 1976-07-01 | Substituted succinic acid compounds and their use as chelants |
| US71101076A | 1976-08-02 | 1976-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR7703515A true BR7703515A (pt) | 1978-02-28 |
Family
ID=27106843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR7703515A BR7703515A (pt) | 1976-07-01 | 1977-05-31 | Processo para produzir acidos carboxilicos alifaticos fosfinico-substituidos,acidos assim produzidos,e processo para tratar agua contendo dureza para prevenir a formacao de crostas |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5315322A (pt) |
| BR (1) | BR7703515A (pt) |
| DE (1) | DE2720551C3 (pt) |
| ES (1) | ES458952A1 (pt) |
| FR (1) | FR2356658A1 (pt) |
| GB (1) | GB1521440A (pt) |
| IT (1) | IT1078873B (pt) |
| NL (1) | NL7706032A (pt) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432458Y2 (pt) * | 1985-09-09 | 1992-08-04 | ||
| US5023000A (en) * | 1990-05-10 | 1991-06-11 | Nalco Chemical Company | Oligomer-containing phosphate scale inhibitors |
| AU667295B2 (en) * | 1990-12-18 | 1996-03-21 | Albright & Wilson Uk Limited | Water treatment agent |
| EP1218387B1 (en) * | 1999-09-16 | 2003-05-07 | Lupin Limited | An improved regiospecific synthesis of phosphonous acids |
| US6572789B1 (en) * | 2001-04-02 | 2003-06-03 | Ondeo Nalco Company | Corrosion inhibitors for aqueous systems |
-
1977
- 1977-04-14 GB GB1557777A patent/GB1521440A/en not_active Expired
- 1977-05-05 DE DE19772720551 patent/DE2720551C3/de not_active Expired
- 1977-05-19 ES ES458952A patent/ES458952A1/es not_active Expired
- 1977-05-31 BR BR7703515A patent/BR7703515A/pt not_active IP Right Cessation
- 1977-05-31 IT IT4963677A patent/IT1078873B/it active
- 1977-06-01 JP JP6460277A patent/JPS5315322A/ja active Granted
- 1977-06-01 NL NL7706032A patent/NL7706032A/xx not_active Application Discontinuation
- 1977-06-01 FR FR7716743A patent/FR2356658A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2356658A1 (fr) | 1978-01-27 |
| JPS5315322A (en) | 1978-02-13 |
| FR2356658B1 (pt) | 1980-04-18 |
| NL7706032A (nl) | 1978-01-03 |
| IT1078873B (it) | 1985-05-08 |
| ES458952A1 (es) | 1978-02-16 |
| DE2720551B2 (de) | 1979-03-15 |
| AU2479177A (en) | 1978-03-02 |
| DE2720551C3 (de) | 1979-11-08 |
| JPS5761039B2 (pt) | 1982-12-22 |
| GB1521440A (en) | 1978-08-16 |
| DE2720551A1 (de) | 1978-01-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B21A | Expiry acc. art. 78, item i of ipl- expiry of the term of protection |
Free format text: PATENTE EXTINTA EM 31/05/92 |