FR2409964B1 - - Google Patents
Info
- Publication number
- FR2409964B1 FR2409964B1 FR7833346A FR7833346A FR2409964B1 FR 2409964 B1 FR2409964 B1 FR 2409964B1 FR 7833346 A FR7833346 A FR 7833346A FR 7833346 A FR7833346 A FR 7833346A FR 2409964 B1 FR2409964 B1 FR 2409964B1
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/167—Phosphorus-containing compounds
- C23F11/1676—Phosphonic acids
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4911477 | 1977-11-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2409964A1 FR2409964A1 (en) | 1979-06-22 |
| FR2409964B1 true FR2409964B1 (en) | 1982-02-12 |
Family
ID=10451193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7833346A Granted FR2409964A1 (en) | 1977-11-25 | 1978-11-24 | Inhibiting boiler scale formation or metal corrosion - e.g. in sea water evapn. by adding cyclic dimer of hydroxy-di:phosphonic acid |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS6017830B2 (en) |
| AR (1) | AR217882A1 (en) |
| AU (1) | AU528091B2 (en) |
| CA (1) | CA1128402A (en) |
| DE (1) | DE2850925A1 (en) |
| ES (1) | ES475398A1 (en) |
| FR (1) | FR2409964A1 (en) |
| HK (1) | HK59183A (en) |
| IT (1) | IT1109096B (en) |
| MX (1) | MX150586A (en) |
| SG (1) | SG34883G (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1334824C (en) * | 1987-02-11 | 1995-03-21 | Stewart Nelson Paul | Biocide protectors |
| JPH01319016A (en) * | 1988-06-17 | 1989-12-25 | Itaro Ouchida | Pad mat and pad of spectacles |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA770172A (en) * | 1965-03-30 | 1967-10-24 | T. Quimby Oscar | Class of organo phosphorous compounds and process for preparing members thereof |
| US3496222A (en) * | 1967-12-28 | 1970-02-17 | Procter & Gamble | Diacetylated cyclic dimer of ethane-1-hydroxy - 1,1 - diphosphonic acid and salts thereof |
| GB1345518A (en) * | 1970-02-20 | 1974-01-30 | Albright & Wilson | Phosphonate sequestrant |
-
1978
- 1978-11-23 AU AU41870/78A patent/AU528091B2/en not_active Expired
- 1978-11-24 IT IT69694/78A patent/IT1109096B/en active
- 1978-11-24 FR FR7833346A patent/FR2409964A1/en active Granted
- 1978-11-24 MX MX175752A patent/MX150586A/en unknown
- 1978-11-24 ES ES475398A patent/ES475398A1/en not_active Expired
- 1978-11-24 DE DE19782850925 patent/DE2850925A1/en active Granted
- 1978-11-24 CA CA316,871A patent/CA1128402A/en not_active Expired
- 1978-11-24 AR AR274577A patent/AR217882A1/en active
- 1978-11-25 JP JP53145943A patent/JPS6017830B2/en not_active Expired
-
1983
- 1983-06-17 SG SG348/83A patent/SG34883G/en unknown
- 1983-11-24 HK HK591/83A patent/HK59183A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2409964A1 (en) | 1979-06-22 |
| AU528091B2 (en) | 1983-04-14 |
| IT7869694A0 (en) | 1978-11-24 |
| HK59183A (en) | 1983-12-02 |
| JPS6017830B2 (en) | 1985-05-07 |
| DE2850925A1 (en) | 1979-05-31 |
| JPS5499746A (en) | 1979-08-06 |
| DE2850925C2 (en) | 1989-09-21 |
| MX150586A (en) | 1984-05-31 |
| SG34883G (en) | 1984-07-27 |
| AR217882A1 (en) | 1980-04-30 |
| IT1109096B (en) | 1985-12-16 |
| AU4187078A (en) | 1979-05-31 |
| ES475398A1 (en) | 1980-02-16 |
| CA1128402A (en) | 1982-07-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |