ATE76857T1 - Verfahren zum kontrollieren von kalziumoxalatablagerungen in einem ausgedehnten ph-bereich. - Google Patents

Verfahren zum kontrollieren von kalziumoxalatablagerungen in einem ausgedehnten ph-bereich.

Info

Publication number: ATE76857T1
Authority: AT; Austria
Prior art keywords: calcium oxalate; extended; range; controlling calcium; oxalate deposits
Prior art date: 1987-10-23

Application number

AT88202304T

Other languages

English (en)

Inventor

Gloria D Sinkovitz

Kevin J Hipolit

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.)

1987-10-23

Filing date

1988-10-14

Publication date

1992-06-15

1988-10-14 Application filed by Calgon Corp filed Critical Calgon Corp

1992-06-15 Application granted granted Critical

1992-06-15 Publication of ATE76857T1 publication Critical patent/ATE76857T1/de

Links

QXDMQSPYEZFLGF-UHFFFAOYSA-L calcium oxalate Chemical compound [Ca+2].[O-]C(=O)C([O-])=O QXDMQSPYEZFLGF-UHFFFAOYSA-L 0.000 title abstract 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
229910019142 PO4 Inorganic materials 0.000 abstract 1
230000002401 inhibitory effect Effects 0.000 abstract 1
NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
239000010452 phosphate Substances 0.000 abstract 1
229920005646 polycarboxylate Polymers 0.000 abstract 1
238000001556 precipitation Methods 0.000 abstract 1

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
- C02F5/105—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 combined with inorganic substances

Landscapes

Chemical & Material Sciences (AREA)
Water Supply & Treatment (AREA)
Inorganic Chemistry (AREA)
General Chemical & Material Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Hydrology & Water Resources (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Organic Chemistry (AREA)
Environmental & Geological Engineering (AREA)
Paper (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Compositions Of Macromolecular Compounds (AREA)
Detergent Compositions (AREA)
Treating Waste Gases (AREA)

AT88202304T 1987-10-23 1988-10-14 Verfahren zum kontrollieren von kalziumoxalatablagerungen in einem ausgedehnten ph-bereich. ATE76857T1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US07/111,948 US4804476A (en)	1987-10-23	1987-10-23	Process for controlling calcium oxalate scale over a wide pH range
EP88202304A EP0313157B1 (de)	1987-10-23	1988-10-14	Verfahren zum Kontrollieren von Kalziumoxalatablagerungen in einem ausgedehnten pH-Bereich

Publications (1)

Publication Number	Publication Date
ATE76857T1 true ATE76857T1 (de)	1992-06-15

Family

ID=22341306

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT88202304T ATE76857T1 (de)	1987-10-23	1988-10-14	Verfahren zum kontrollieren von kalziumoxalatablagerungen in einem ausgedehnten ph-bereich.

Country Status (7)

Country	Link
US (1)	US4804476A (de)
EP (1)	EP0313157B1 (de)
JP (1)	JPH01143700A (de)
AT (1)	ATE76857T1 (de)
AU (1)	AU621564B2 (de)
DE (1)	DE3871713T2 (de)
ES (1)	ES2031584T3 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5137722A (en) *	1991-01-16	1992-08-11	Allegheny-Singer Research Institute	Extract and pharmaceutical composition for treatment of calcium oxalate stone disease
US5279827A (en) *	1991-01-16	1994-01-18	Allegheny-Singer Research Institute	Extract and pharmaceutical composition for treatment of calcium oxalate stone disease and viral infections
US5320757A (en) *	1993-04-05	1994-06-14	Betz Laboratories, Inc.	Method of inhibiting calcium oxalate scale deposition
DK0628518T3 (da) *	1993-06-14	2001-12-17	Solutia Europ Nv Sa	Fremgangsmåde til at hindre dannelse af oxalatkedelsten
BR9503967A (pt) *	1994-09-12	1996-09-24	Rohm & Haas	Processo de inibição da formação de incrustação
US6096197A (en) *	1997-12-11	2000-08-01	Hughes; Douglass E.	Shower filter for chlorine removal and scale deposit prevention
KR100308522B1 (ko) *	1999-06-10	2001-11-05	선우 영석	옥살산칼슘 스케일 제거제
ES2272191B1 (es) *	2005-10-14	2008-04-01	Universitat De Les Illes Balears	Utilizacion del fitato para el tratamiento del agua.
JP5615049B2 (ja) *	2010-06-07	2014-10-29	伯東株式会社	硫酸バリウムスケール防止方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4640793A (en) *	1984-02-14	1987-02-03	Calgon Corporation	Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
US4634532A (en) *	1984-05-12	1987-01-06	Calgon Corporation	Orthophosphate-containing desalination scale inhibitors
US4589985A (en) *	1984-12-03	1986-05-20	Calgon Corporation	Polyelectrolyte and surfactant compositions for controlling alkaline earth metal scales
US4575425A (en) *	1984-12-24	1986-03-11	Calgon Corporation	Process for controlling calcium oxalate scale over a wide pH range
US4814406A (en) *	1986-02-28	1989-03-21	Katayama Chemical Works Ltd.	Scale inhibitor

1987
- 1987-10-23 US US07/111,948 patent/US4804476A/en not_active Expired - Lifetime
1988
- 1988-10-14 AT AT88202304T patent/ATE76857T1/de not_active IP Right Cessation
- 1988-10-14 EP EP88202304A patent/EP0313157B1/de not_active Expired - Lifetime
- 1988-10-14 DE DE8888202304T patent/DE3871713T2/de not_active Expired - Lifetime
- 1988-10-14 ES ES198888202304T patent/ES2031584T3/es not_active Expired - Lifetime
- 1988-10-20 JP JP63263022A patent/JPH01143700A/ja active Pending
- 1988-10-21 AU AU24183/88A patent/AU621564B2/en not_active Ceased

Also Published As

Publication number	Publication date
DE3871713D1 (de)	1992-07-09
AU621564B2 (en)	1992-03-19
EP0313157B1 (de)	1992-06-03
EP0313157A3 (en)	1989-09-27
DE3871713T2 (de)	1992-12-10
EP0313157A2 (de)	1989-04-26
US4804476A (en)	1989-02-14
ES2031584T3 (es)	1992-12-16
JPH01143700A (ja)	1989-06-06
AU2418388A (en)	1989-04-27

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Legal Events

Date	Code	Title	Description
1993-01-15	UEP	Publication of translation of european patent specification
1995-07-15	REN	Ceased due to non-payment of the annual fee