FR2258347B1 - - Google Patents

Info

Publication number: FR2258347B1
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

Application number

FR7501464A

Other languages

Other versions

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Calgon Corp

Original Assignee

Calgon Corp

Priority date (The priority date 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 date listed.)

1974-01-21

Filing date

1975-01-17

Publication date

1976-12-31

1975-01-17 Application filed by Calgon Corp filed Critical Calgon Corp

1975-08-18 Publication of FR2258347A1 publication Critical patent/FR2258347A1/fr

1976-12-31 Application granted granted Critical

1976-12-31 Publication of FR2258347B1 publication Critical patent/FR2258347B1/fr

Status Granted legal-status Critical Current

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)
Separation Of Suspended Particles By Flocculating Agents (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

FR7501464A 1974-01-21 1975-01-17 Removing or inhibiting alluvial and other deposits - in water systems by adding polymers prepd. from water-soluble monomers Granted FR2258347A1 (en)

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 FR2258347A1 (en)	1975-08-18
FR2258347B1 true FR2258347B1 (de)	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 (de)
FR (1)	FR2258347A1 (de)
SE (1)	SE7500160L (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2854484A1 (de) *	1978-12-16	1980-06-26	Bayer Ag	Stabile waessrige zeolith-suspensionen
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/fr active Granted
- 1975-01-20 DE DE19752502012 patent/DE2502012A1/de active Pending

Also Published As

Publication number	Publication date
FR2258347A1 (en)	1975-08-18
DE2502012A1 (de)	1975-07-24
SE7500160L (de)	1975-07-22

Publication	Publication Date	Title
FR2263864A2 (de)	1975-10-10
FR2266963B3 (de)	1977-12-02
AU6717074A (de)	1975-10-02
BG21788A1 (de)	1976-09-20
AU479969A (de)	1975-12-04
AU480994A (de)	1975-08-21
AU482110A (de)	1975-02-12
BE332773A (de)
BE827113A (de)	1975-07-16
BG19703A1 (de)	1975-10-10
BG19725A1 (de)	1977-05-20
BG19756A1 (de)	1975-10-10
BG19852A1 (de)	1975-10-30
BG19878A1 (de)	1975-10-30
BG19893A1 (de)	1975-10-30
BG19899A1 (de)	1975-10-30
BG19959A1 (de)	1975-10-30
BG19990A1 (de)	1977-05-20
BG20018A1 (de)	1975-10-30
BG20164A1 (de)	1975-11-05
BG20457A1 (de)	1975-12-05
BG20462A1 (de)	1975-12-05
BG20483A1 (de)	1975-12-05
BG20509A1 (de)	1975-12-05
BG20518A1 (de)	1975-12-05

Legal Events

Date	Code	Title	Description
1978-03-17	ST	Notification of lapse