FR2258347A1 - Removing or inhibiting alluvial and other deposits - in water systems by adding polymers prepd. from water-soluble monomers - Google Patents
Removing or inhibiting alluvial and other deposits - in water systems by adding polymers prepd. from water-soluble monomersInfo
- Publication number
- FR2258347A1 FR2258347A1 FR7501464A FR7501464A FR2258347A1 FR 2258347 A1 FR2258347 A1 FR 2258347A1 FR 7501464 A FR7501464 A FR 7501464A FR 7501464 A FR7501464 A FR 7501464A FR 2258347 A1 FR2258347 A1 FR 2258347A1
- Authority
- FR
- France
- Prior art keywords
- water
- deposits
- prepd
- alluvial
- systems
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- 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
- C02F5/12—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 nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43535574A | 1974-01-21 | 1974-01-21 | |
| US51915474A | 1974-10-31 | 1974-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2258347A1 true FR2258347A1 (en) | 1975-08-18 |
| FR2258347B1 FR2258347B1 (OSRAM) | 1976-12-31 |
Family
ID=27030530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7501464A Granted FR2258347A1 (en) | 1974-01-21 | 1975-01-17 | Removing or inhibiting alluvial and other deposits - in water systems by adding polymers prepd. from water-soluble monomers |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2502012A1 (OSRAM) |
| FR (1) | FR2258347A1 (OSRAM) |
| SE (1) | SE7500160L (OSRAM) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2854484A1 (de) * | 1978-12-16 | 1980-06-26 | Bayer Ag | Stabile waessrige zeolith-suspensionen |
| US4595736A (en) * | 1983-06-07 | 1986-06-17 | Dresser Industries, Inc. | Thermally stable drilling fluid additive comprised of a copolymer of catechol-based monomer |
| US4525562A (en) * | 1983-06-07 | 1985-06-25 | Dresser Industries, Inc. | Thermally stable drilling fluid additive |
| US4521578A (en) * | 1983-09-26 | 1985-06-04 | Dresser Industries, Inc. | Composition and method of preparation of novel aqueous drilling fluid additives |
| US4579927A (en) * | 1983-09-26 | 1986-04-01 | Dresser Industries, Inc. | Copolymers of flavanoid tannins and acrylic monomers |
-
1975
- 1975-01-08 SE SE7500160A patent/SE7500160L/ not_active Application Discontinuation
- 1975-01-17 FR FR7501464A patent/FR2258347A1/fr active Granted
- 1975-01-20 DE DE19752502012 patent/DE2502012A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2502012A1 (de) | 1975-07-24 |
| FR2258347B1 (OSRAM) | 1976-12-31 |
| SE7500160L (OSRAM) | 1975-07-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |