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
Abstract
Alluvial deposits and sinking materials in water systems may be removed and their formation prevented by adding a water-in-oil emulsion contg. opt. 1-40 (20-40) wt. % of a finely divided stable water-soluble polymer having high mol. wt., e.g. 100000-20 000 000, prepd. by emulsion polymsn. of water-soluble ethylenically unsatd. monomers. Used in cooling systems, e.g. of steel industry furnaces or cooling towers of oil refineries. Additives can have a higher active ingredient content than materials used hitherto, are easily dissolved and provide a better cost : efficiency ratio. Deposits are dispersed in water stream and agglomerated to mobile flocculates. Pref. polymers are copolymers of acrylamide with Na acrylate, (3-acrylamide-3-Me)-Bu-trimethyl ammonium chloride, 2-acrylamido-2-Me-propane sulphonic acid or dimethyl-diallyl ammonium chloride.
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 (en) | 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 (en) |
FR (1) | FR2258347A1 (en) |
SE (1) | SE7500160L (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2854484A1 (en) * | 1978-12-16 | 1980-06-26 | Bayer Ag | STABLE AQUEOUS ZEOLITE SUSPENSIONS |
US4525562A (en) * | 1983-06-07 | 1985-06-25 | Dresser Industries, Inc. | Thermally stable drilling fluid additive |
US4595736A (en) * | 1983-06-07 | 1986-06-17 | Dresser Industries, Inc. | Thermally stable drilling fluid additive comprised of a copolymer of catechol-based monomer |
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/en active Granted
- 1975-01-20 DE DE19752502012 patent/DE2502012A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
SE7500160L (en) | 1975-07-22 |
FR2258347B1 (en) | 1976-12-31 |
DE2502012A1 (en) | 1975-07-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3709816A (en) | Control of alluvial and other deposits in aqueous systems | |
US3709815A (en) | Boiler water treatment | |
US4022736A (en) | Freeze-thaw stable, self-inverting, water-in-oil emulsion | |
CA2172582C (en) | Enhanced corrosion protection by use of friction reducers in conjunction with corrosion inhibitors | |
DE3566387D1 (en) | Carboxylic-sulfonic-polyalkylene oxide polymers and their use as scale and corrosion inhibitors | |
EP0107226B1 (en) | Water-in-oil emulsions of water-soluble cationic polymers and a process for preparing such emulsions | |
JPS6114390A (en) | Liquification of fluid for completing chloride substrate heavy brine well | |
US5308498A (en) | Hydroxamic acid containing polymers used as corrosion inhibitors | |
KR860001766A (en) | Scale formation suppression method in water system | |
GB1511908A (en) | High hlb latex polymers | |
US4147627A (en) | Process for scale control using mixtures of polycationic and polyanionic polymers | |
ATE41136T1 (en) | POLYMERS CONTAINING CARBON ACID, SULPHONIC ACID AND QUATERNARY AMMONIUM GROUPS FOR PREVENTING BOILING AND CORROSION. | |
US3867330A (en) | Brines containing water-soluble anionic vinyl addition polymer and water soluble cationic polymer | |
FR2258347A1 (en) | Removing or inhibiting alluvial and other deposits - in water systems by adding polymers prepd. from water-soluble monomers | |
US4002589A (en) | Preparation of water soluble segmented polymers | |
US20220332612A1 (en) | Polymer flooding produced water treatment | |
US4717542A (en) | Inhibiting corrosion of iron base metals | |
US4502978A (en) | Method of improving inhibitor efficiency in hard waters | |
JP2704579B2 (en) | Liquid composition containing water-soluble polymer | |
KR870004909A (en) | Stabilization of Iron in Water Soluble Systems | |
US4205143A (en) | Mixtures of polycationic and polyanionic polymers for scale control | |
GB1130316A (en) | Controlled addition of redox catalysts for polymerizations of vinyl monomers | |
US4581405A (en) | Stabilization of dilute aqueous solutions of high molecular weight homopolymers and copolymers based on water-soluble ethylenically unsaturated compounds | |
US3493499A (en) | Flocculation of saline solid suspensions | |
FR2281387A1 (en) | Pumpable water-in-oil polymer emulsion - contg. high mol. wt. anionic polyacrylamide in aq. disperse phase |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |