DE3662979D1 - Water absorbing polymers - Google Patents
Water absorbing polymersInfo
- Publication number
- DE3662979D1 DE3662979D1 DE8686301521T DE3662979T DE3662979D1 DE 3662979 D1 DE3662979 D1 DE 3662979D1 DE 8686301521 T DE8686301521 T DE 8686301521T DE 3662979 T DE3662979 T DE 3662979T DE 3662979 D1 DE3662979 D1 DE 3662979D1
- Authority
- DE
- Germany
- Prior art keywords
- water absorbing
- absorbing polymers
- polymers
- water
- absorbing
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB858505632A GB8505632D0 (en) | 1985-03-05 | 1985-03-05 | Water absorbing polymers |
GB858530784A GB8530784D0 (en) | 1985-12-13 | 1985-12-13 | Water absorbing polymers |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3662979D1 true DE3662979D1 (en) | 1989-06-01 |
Family
ID=26288911
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE198686301521T Pending DE195550T1 (de) | 1985-03-05 | 1986-03-04 | Wasseraufsaugende polymere. |
DE8686301521T Expired DE3662979D1 (en) | 1985-03-05 | 1986-03-04 | Water absorbing polymers |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE198686301521T Pending DE195550T1 (de) | 1985-03-05 | 1986-03-04 | Wasseraufsaugende polymere. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4690971A (de) |
EP (1) | EP0195550B1 (de) |
AU (1) | AU582832B2 (de) |
CA (1) | CA1286047C (de) |
DE (2) | DE195550T1 (de) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4880858A (en) * | 1985-03-05 | 1989-11-14 | Allied Colloids Limited | Water absorbing polymers |
CA1332514C (en) * | 1985-05-21 | 1994-10-18 | Meyer Robert Rosen | Process for agglomerating mineral ore concentrate utilizing emulsions of polymer binders or dry polymer binders |
GB8529418D0 (en) * | 1985-11-29 | 1986-01-08 | Allied Colloids Ltd | Iron ore pelletisation |
US5256705A (en) * | 1986-03-26 | 1993-10-26 | Waterguard Industries, Inc. | Composition with tackifier for protecting communication wires |
US5218011A (en) * | 1986-03-26 | 1993-06-08 | Waterguard Industries, Inc. | Composition for protecting the contents of an enclosed space from damage by invasive water |
US4873280A (en) * | 1986-11-06 | 1989-10-10 | Nalco Chemical Company | Water clarification process and composition and method |
ES2030165T3 (es) * | 1987-01-30 | 1992-10-16 | Allied Colloids Limited | Polimeros absorbentes del agua. |
EP0288150B1 (de) * | 1987-03-24 | 1994-02-23 | Ciba Specialty Chemicals Water Treatments Limited | Verfahren zum Pelletieren von Erzen |
GB8713205D0 (en) * | 1987-06-05 | 1987-07-08 | Allied Colloids Ltd | Grinding method |
GB8725096D0 (en) * | 1987-10-27 | 1987-12-02 | Allied Colloids Ltd | Polymeric processes & conversions |
EP0326382B1 (de) * | 1988-01-28 | 1997-04-23 | Ciba Specialty Chemicals Water Treatments Limited | Polymermischungen |
US4968435A (en) * | 1988-12-19 | 1990-11-06 | American Cyanamid Company | Cross-linked cationic polymeric microparticles |
GB8903172D0 (en) * | 1989-02-13 | 1989-03-30 | Allied Colloids Ltd | Peat compositions and their manufacture |
US4917803A (en) * | 1989-03-02 | 1990-04-17 | Nalco Chemical Company | Water clarification process |
GB8915639D0 (en) * | 1989-07-07 | 1989-08-23 | Allied Colloids Ltd | Sintering process |
US5112391A (en) * | 1990-03-30 | 1992-05-12 | Nalco Chemical Company | Method of forming ore pellets with superabsorbent polymer |
GB9009404D0 (en) * | 1990-04-26 | 1990-06-20 | Allied Colloids Ltd | Pelletisation process |
GB9114095D0 (en) * | 1991-06-29 | 1991-08-14 | Allstate Limited | Improvements in water-soluble polymers |
GB9116700D0 (en) * | 1991-08-02 | 1991-09-18 | Allied Colloids Ltd | Ore pelletisation |
US5275509A (en) * | 1992-11-02 | 1994-01-04 | Isolyser Company, Inc. | Method of disposing of photographic fixer and developer |
US5389542A (en) * | 1992-11-04 | 1995-02-14 | Development Center For Biotechnology | Controlling vitrification of plants using water absorbent polymer |
US5391597A (en) * | 1993-10-04 | 1995-02-21 | Cytec Technology Corp. | Composition and process for increasing the shear strength of processing wastes used for tip building and underground consolidation |
CA2181696C (en) * | 1994-02-17 | 2002-01-01 | Lin Wang | Porous absorbent materials having modified surface characteristics and methods for making the same |
US5849405A (en) * | 1994-08-31 | 1998-12-15 | The Procter & Gamble Company | Absorbent materials having improved absorbent property and methods for making the same |
US5843575A (en) * | 1994-02-17 | 1998-12-01 | The Procter & Gamble Company | Absorbent members comprising absorbent material having improved absorbent property |
US5599335A (en) * | 1994-03-29 | 1997-02-04 | The Procter & Gamble Company | Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absorbent polymer |
FR2732006A1 (fr) * | 1995-03-20 | 1996-09-27 | Degremont | Perfectionnements apportes a la deshydratation des boues provenant d'operations de traitement d'eau |
US5846435A (en) * | 1996-09-26 | 1998-12-08 | Haase; Richard Alan | Method for dewatering of sludge |
WO1999055767A1 (de) * | 1998-04-28 | 1999-11-04 | Basf Aktiengesellschaft | Mechanisch stabile hydrogele |
US6041546A (en) * | 1998-05-26 | 2000-03-28 | Nodirt Exotic Planters, Inc. | Planter pouch |
US6213416B1 (en) | 1998-09-28 | 2001-04-10 | Ciba Specialty Chemicals Water Treatments Ltd. | Treatment of phosphate-containing rock |
DE50102334D1 (de) | 2000-03-31 | 2004-06-24 | Stockhausen Chem Fab Gmbh | Pulverförmige, an der oberfläche vernetzte polymerisate |
DE10016041A1 (de) * | 2000-03-31 | 2001-10-04 | Stockhausen Chem Fab Gmbh | Pulverförmige an der Oberfläche vernetzte Polymerisate |
EP1160197A1 (de) | 2000-05-29 | 2001-12-05 | Ciba Specialty Chemicals Water Treatments Limited | Behandlung von Phosphatgestein |
BR0301250A (pt) * | 2003-05-05 | 2004-12-21 | Samarco Mineracao Sa | Pelotas de minério de ferro com redução da abrasão, colagem, degradação e emissão de poeira, e processo de sua fabricação |
IT1393778B1 (it) * | 2009-04-06 | 2012-05-08 | Sannino | Procedimento per il trattamento di rifiuti. |
US20120298914A1 (en) * | 2010-02-04 | 2012-11-29 | Flsmidth A/S | Method for Treating and Conditioning Tailings |
WO2011097357A1 (en) * | 2010-02-04 | 2011-08-11 | Flsmidth A/S | Method for treating tailings |
CA2812275C (en) | 2013-04-10 | 2019-01-08 | Imperial Oil Resources Limited | Systems and methods for separating mine tailings from water-absorbing polymers and regenerating the separated water-absorbing polymers |
CA2812273C (en) | 2013-04-10 | 2019-01-08 | Imperial Oil Resources Limited | Systems and methods for dewatering mine tailings |
EP3088539B1 (de) * | 2015-04-29 | 2019-10-09 | Evonik Degussa GmbH | Behandlung von wasserhaltigen erz-aufbereitungsrückständen |
EA035685B1 (ru) * | 2019-04-03 | 2020-07-24 | Научно-Исследовательский И Проектный Институт Нефти И Газа (Нипинг) | Способ разработки обводненного пласта |
FR3114980B1 (fr) * | 2020-10-14 | 2022-12-16 | Aprotek | Composition asséchante pour faciliter le transport des boues salées |
AT525429B1 (de) * | 2022-04-14 | 2023-04-15 | Kahr Gottfried | Verfahren zum Trocknen von Klärschlamm |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059552A (en) * | 1974-06-21 | 1977-11-22 | The Dow Chemical Company | Cross-linked water-swellable polymer particles |
GB1573201A (en) * | 1975-12-17 | 1980-08-20 | Nat Res Dev | Recovery of dissolved substandes and purification of solvents |
DK171937B1 (da) * | 1981-06-12 | 1997-08-18 | British Tech Group | Fremgangsmåde til fremstilling af partikelformige hydrogeler |
NZ201482A (en) * | 1981-08-07 | 1984-12-14 | Unilever Plc | Cross-linked acrylamide/acrylic acid salt copolymer compositions for use as a plant growing media additive |
US4470827A (en) * | 1981-12-17 | 1984-09-11 | Nalco Chemical Company | Freeze conditioning composition and method |
EP0101253B1 (de) * | 1982-08-17 | 1987-07-22 | Ciba Specialty Chemicals Water Treatments Limited | Wasseraufsaugende Polymere |
JPS6078696A (ja) * | 1983-10-04 | 1985-05-04 | Shinryo Air Conditioning Co Ltd | 曝気槽内混合液のsvi改良方法 |
-
1986
- 1986-03-03 US US06/835,602 patent/US4690971A/en not_active Expired - Fee Related
- 1986-03-04 CA CA000503194A patent/CA1286047C/en not_active Expired - Lifetime
- 1986-03-04 EP EP86301521A patent/EP0195550B1/de not_active Expired
- 1986-03-04 DE DE198686301521T patent/DE195550T1/de active Pending
- 1986-03-04 DE DE8686301521T patent/DE3662979D1/de not_active Expired
- 1986-03-04 AU AU54256/86A patent/AU582832B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
US4690971A (en) | 1987-09-01 |
CA1286047C (en) | 1991-07-09 |
EP0195550A1 (de) | 1986-09-24 |
EP0195550B1 (de) | 1989-04-26 |
AU582832B2 (en) | 1989-04-13 |
DE195550T1 (de) | 1988-01-14 |
AU5425686A (en) | 1986-09-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8331 | Complete revocation |