DE3871713D1 - 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
- DE3871713D1 DE3871713D1 DE8888202304T DE3871713T DE3871713D1 DE 3871713 D1 DE3871713 D1 DE 3871713D1 DE 8888202304 T DE8888202304 T DE 8888202304T DE 3871713 T DE3871713 T DE 3871713T DE 3871713 D1 DE3871713 D1 DE 3871713D1
- Authority
- DE
- Germany
- Prior art keywords
- calcium oxalate
- extended
- area
- controlling calcium
- oxalate deposits
- 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.)
- Expired - Fee Related
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
- C02F5/105—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)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Paper (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Detergent Compositions (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
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 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3871713D1 true DE3871713D1 (de) | 1992-07-09 |
DE3871713T2 DE3871713T2 (de) | 1992-12-10 |
Family
ID=22341306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888202304T Expired - Lifetime DE3871713T2 (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)
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 |
EP0628518B1 (de) * | 1993-06-14 | 2001-09-12 | Solutia Europe N.V./S.A. | Verfahren zur Verhinderung von Oxalatablagerungen |
AU701456B2 (en) * | 1994-09-12 | 1999-01-28 | Rohm And Haas Company | Method of inhibiting sulfate scale in aqueous systems |
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 (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5520646A (en) * | 1978-07-31 | 1980-02-14 | Nippon Steel Corp | Preventing method of scale deposition of exhaust gas system and dust collecting water system of steel making furnace |
JPS5811279B2 (ja) * | 1978-08-08 | 1983-03-02 | 株式会社片山化学工業研究所 | スケ−ル防止処理法 |
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 ES ES198888202304T patent/ES2031584T3/es not_active Expired - Lifetime
- 1988-10-14 DE DE8888202304T patent/DE3871713T2/de not_active Expired - Lifetime
- 1988-10-14 EP EP88202304A patent/EP0313157B1/de 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 |
---|---|
ATE76857T1 (de) | 1992-06-15 |
US4804476A (en) | 1989-02-14 |
AU2418388A (en) | 1989-04-27 |
ES2031584T3 (es) | 1992-12-16 |
JPH01143700A (ja) | 1989-06-06 |
DE3871713T2 (de) | 1992-12-10 |
EP0313157A3 (en) | 1989-09-27 |
AU621564B2 (en) | 1992-03-19 |
EP0313157A2 (de) | 1989-04-26 |
EP0313157B1 (de) | 1992-06-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |