ZA200200383B - Process for flocculating suspensions. - Google Patents
Process for flocculating suspensions. Download PDFInfo
- Publication number
- ZA200200383B ZA200200383B ZA200200383A ZA200200383A ZA200200383B ZA 200200383 B ZA200200383 B ZA 200200383B ZA 200200383 A ZA200200383 A ZA 200200383A ZA 200200383 A ZA200200383 A ZA 200200383A ZA 200200383 B ZA200200383 B ZA 200200383B
- Authority
- ZA
- South Africa
- Prior art keywords
- polymer
- solution
- concentrated
- dilute
- process according
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 38
- 239000000725 suspension Substances 0.000 title claims description 32
- 230000003311 flocculating effect Effects 0.000 title claims description 7
- 239000000243 solution Substances 0.000 claims description 190
- 229920000642 polymer Polymers 0.000 claims description 173
- 239000000203 mixture Substances 0.000 claims description 62
- 239000007864 aqueous solution Substances 0.000 claims description 41
- 229920006317 cationic polymer Polymers 0.000 claims description 40
- 239000000178 monomer Substances 0.000 claims description 30
- 238000002156 mixing Methods 0.000 claims description 27
- 239000012895 dilution Substances 0.000 claims description 21
- 238000010790 dilution Methods 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 125000002091 cationic group Chemical group 0.000 claims description 18
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 15
- 239000010801 sewage sludge Substances 0.000 claims description 14
- 239000010802 sludge Substances 0.000 claims description 13
- 125000000129 anionic group Chemical group 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 9
- 239000007900 aqueous suspension Substances 0.000 claims description 9
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 7
- -1 dimethylaminoethyl Chemical class 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical class [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 5
- NJSSICCENMLTKO-HRCBOCMUSA-N [(1r,2s,4r,5r)-3-hydroxy-4-(4-methylphenyl)sulfonyloxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)O[C@H]1C(O)[C@@H](OS(=O)(=O)C=2C=CC(C)=CC=2)[C@@H]2OC[C@H]1O2 NJSSICCENMLTKO-HRCBOCMUSA-N 0.000 claims description 5
- 229920006318 anionic polymer Polymers 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 150000003863 ammonium salts Chemical class 0.000 claims description 2
- 238000007865 diluting Methods 0.000 claims description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000005189 flocculation Methods 0.000 description 13
- 239000008394 flocculating agent Substances 0.000 description 10
- 230000016615 flocculation Effects 0.000 description 10
- 238000011282 treatment Methods 0.000 description 7
- 239000000839 emulsion Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 description 3
- 229940048053 acrylate Drugs 0.000 description 3
- NEHMKBQYUWJMIP-UHFFFAOYSA-N anhydrous methyl chloride Natural products ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229940050176 methyl chloride Drugs 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- 101150114843 Mgll gene Proteins 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 239000002761 deinking Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920006158 high molecular weight polymer Polymers 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical group OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- C02F1/56—Macromolecular compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/928—Paper mill waste, e.g. white water, black liquor treated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S422/00—Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
- Y10S422/901—Polymer dissolver
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S524/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S524/922—Flocculating, clarifying, or fining compositions
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9916748.8A GB9916748D0 (en) | 1999-07-19 | 1999-07-19 | Process for the flocculation of suspensions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200200383B true ZA200200383B (en) | 2003-03-26 |
Family
ID=10857395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200200383A ZA200200383B (en) | 1999-07-19 | 2002-01-16 | Process for flocculating suspensions. |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US6805803B1 (pt) |
| EP (1) | EP1206415B1 (pt) |
| JP (1) | JP2003505224A (pt) |
| KR (1) | KR20020014833A (pt) |
| CN (1) | CN1268554C (pt) |
| AT (1) | ATE265989T1 (pt) |
| AU (1) | AU765970B2 (pt) |
| BR (1) | BR0012619B1 (pt) |
| CA (1) | CA2378718C (pt) |
| CZ (1) | CZ2002149A3 (pt) |
| DE (1) | DE60010475T2 (pt) |
| DK (1) | DK1206415T3 (pt) |
| ES (1) | ES2219375T3 (pt) |
| GB (1) | GB9916748D0 (pt) |
| HU (1) | HU229093B1 (pt) |
| MX (1) | MXPA02000656A (pt) |
| MY (1) | MY126990A (pt) |
| NO (1) | NO323141B1 (pt) |
| NZ (1) | NZ516631A (pt) |
| PL (1) | PL353594A1 (pt) |
| PT (1) | PT1206415E (pt) |
| SK (1) | SK502002A3 (pt) |
| TW (1) | TW539653B (pt) |
| WO (1) | WO2001005712A1 (pt) |
| ZA (1) | ZA200200383B (pt) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0108548D0 (en) * | 2001-04-05 | 2001-05-23 | Ciba Spec Chem Water Treat Ltd | Process for flocculating suspensions |
| BRPI0418670B1 (pt) | 2003-08-29 | 2015-10-20 | Univ Newcastle Res Ass | método de separação de partículas sólidas de uma suspensão comprendendo um líquido e método decontrole da consolidação de um leito de partículas sólidas dentro de um líquido. |
| US7244361B2 (en) * | 2003-11-20 | 2007-07-17 | Ciba Specialty Chemicals Water Treatments Ltd. | Metals/minerals recovery and waste treatment process |
| GB0405493D0 (en) | 2004-03-12 | 2004-04-21 | Ciba Spec Chem Water Treat Ltd | Dewatering process |
| GB0405505D0 (en) * | 2004-03-12 | 2004-04-21 | Ciba Spec Chem Water Treat Ltd | Dewatering process |
| GB0405506D0 (en) * | 2004-03-12 | 2004-04-21 | Ciba Spec Chem Water Treat Ltd | Dewatering process |
| GB0405504D0 (en) | 2004-03-12 | 2004-04-21 | Ciba Spec Chem Water Treat Ltd | Dewatering process |
| JP4672531B2 (ja) * | 2005-11-18 | 2011-04-20 | ダイヤニトリックス株式会社 | 緑液の処理方法 |
| US7736497B2 (en) * | 2006-08-02 | 2010-06-15 | M-I L.L.C. | Dewatering system |
| US20100038318A1 (en) * | 2008-08-12 | 2010-02-18 | M-I L.L.C. | Enhanced solids control |
| US20100326151A1 (en) * | 2009-06-24 | 2010-12-30 | Feeco International, Inc. | Enhanced Fertilizer Granule |
| WO2011032258A1 (en) | 2009-09-15 | 2011-03-24 | Suncor Energy Inc. | Process for flocculating and dewatering oil sand mature fine tailings |
| PL3199218T3 (pl) | 2009-09-15 | 2020-04-30 | Suncor Energy Inc. | Proces osuszania dojrzałych drobnych odpadów z flotacji piasków bitumicznych |
| WO2011050440A1 (en) | 2009-10-30 | 2011-05-05 | Suncor Energy Inc. | Depositing and farming methods for drying oil sand mature fine tailings |
| PE20131146A1 (es) * | 2010-07-09 | 2013-10-05 | Rio Tinto Alcan Int Ltd | Adicion de floculante y velocidad de mezcla para separar componentes solidos y de licor de un lodo de proceso |
| CN103842300A (zh) * | 2011-03-17 | 2014-06-04 | 赫尔克里士公司 | 提高水性分散体的流动速率的方法 |
| AU2012315514A1 (en) | 2011-09-30 | 2014-04-17 | M-I L.L.C. | Drilling fluid processing |
| CA2892982A1 (en) * | 2013-01-18 | 2014-07-24 | Basf Se | Treatment of fine tailings |
| WO2014111886A1 (en) * | 2013-01-18 | 2014-07-24 | Basf Se | Process for dewatering mineral tailings by treatment of tailings with at least one dilute polymer solution and at least one concentrated polymer |
| FR3005950B1 (fr) * | 2013-05-21 | 2017-03-24 | Degremont | Procede et installation de deshydratation poussee d'une boue de residus salins |
| MA41354B1 (fr) * | 2015-04-30 | 2019-10-31 | Basf Se | Separation de suspensions de solides a l'aide d'un polymere hydrosoluble et d'un agent chimique. |
| EP3744742A1 (en) | 2015-11-16 | 2020-12-02 | Basf Se | Process for production of multivalent cation-containing copolymer |
| US10513451B2 (en) | 2017-03-23 | 2019-12-24 | Baker Hughes, A Ge Company, Llc | Treatment of mature fine tailings in produced water by flocculation and dewatering |
| WO2019170697A1 (en) | 2018-03-07 | 2019-09-12 | Basf Se | Process for treating an aqueous slurry and composition for use therein |
| CA3117346A1 (en) | 2018-10-31 | 2020-05-07 | Basf Se | Enhanced dewatering of mining tailings employing chemical pre-treatment |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3509021A (en) * | 1967-03-20 | 1970-04-28 | Diamond Shamrock Corp | Polyacrylamide-aminoplast resin compositions and their uses |
| US3994806A (en) * | 1972-03-08 | 1976-11-30 | Calgon Corporation | Composition and method for flocculating suspended solids |
| US3951792A (en) * | 1972-03-30 | 1976-04-20 | Gaf Corporation | Flocculation of suspended solids |
| DE3020685C2 (de) | 1980-05-30 | 1984-06-14 | Günther 8752 Krombach Albert | Vorrichtung zum kontinuierlichen Vermischen zweier Flüssigkeiten unterschiedlicher Menge und Viskosität |
| US4402916A (en) * | 1981-06-30 | 1983-09-06 | Marathon Oil Company | Dilution apparatus and method |
| EP0316348A1 (en) | 1986-08-04 | 1989-05-24 | CONTINENTAL MANUFACTURING & SALES INC. | Method for the treatment of sewage and other impure water |
| US4835206A (en) * | 1986-10-01 | 1989-05-30 | Allied Colloids, Ltd. | Water soluble polymeric compositions |
| US5164429A (en) * | 1987-08-25 | 1992-11-17 | Stranco, Inc. | Polymer activation apparatus |
| US4931190A (en) | 1988-12-27 | 1990-06-05 | Envirotech Corporation | Flocculating agent combinations for mineral slime filtration systems |
| GB9021565D0 (en) * | 1990-10-04 | 1990-11-21 | Allied Colloids Ltd | Dewatering compositions and processes |
| GB9411444D0 (en) | 1994-06-08 | 1994-07-27 | Cdm Ab | Dewatering of suspensions |
| MY118538A (en) * | 1997-01-20 | 2004-12-31 | Ciba Spec Chem Water Treat Ltd | Polymeric compositions and their production and uses |
-
1999
- 1999-07-19 GB GBGB9916748.8A patent/GB9916748D0/en not_active Ceased
-
2000
- 2000-06-09 TW TW089111243A patent/TW539653B/zh not_active IP Right Cessation
- 2000-07-05 AT AT00953008T patent/ATE265989T1/de active
- 2000-07-05 DK DK00953008T patent/DK1206415T3/da active
- 2000-07-05 PL PL00353594A patent/PL353594A1/xx not_active Application Discontinuation
- 2000-07-05 KR KR1020027000785A patent/KR20020014833A/ko not_active Application Discontinuation
- 2000-07-05 HU HU0201895A patent/HU229093B1/hu not_active IP Right Cessation
- 2000-07-05 MX MXPA02000656A patent/MXPA02000656A/es active IP Right Grant
- 2000-07-05 SK SK50-2002A patent/SK502002A3/sk unknown
- 2000-07-05 NZ NZ516631A patent/NZ516631A/en not_active IP Right Cessation
- 2000-07-05 ES ES00953008T patent/ES2219375T3/es not_active Expired - Lifetime
- 2000-07-05 JP JP2001511375A patent/JP2003505224A/ja active Pending
- 2000-07-05 WO PCT/EP2000/006292 patent/WO2001005712A1/en active IP Right Grant
- 2000-07-05 CZ CZ2002149A patent/CZ2002149A3/cs unknown
- 2000-07-05 CA CA002378718A patent/CA2378718C/en not_active Expired - Fee Related
- 2000-07-05 BR BRPI0012619-5B1A patent/BR0012619B1/pt not_active IP Right Cessation
- 2000-07-05 US US10/030,535 patent/US6805803B1/en not_active Expired - Lifetime
- 2000-07-05 AU AU65614/00A patent/AU765970B2/en not_active Ceased
- 2000-07-05 EP EP00953008A patent/EP1206415B1/en not_active Expired - Lifetime
- 2000-07-05 DE DE60010475T patent/DE60010475T2/de not_active Expired - Lifetime
- 2000-07-05 CN CNB008105219A patent/CN1268554C/zh not_active Expired - Fee Related
- 2000-07-05 PT PT00953008T patent/PT1206415E/pt unknown
- 2000-07-12 MY MYPI20003195 patent/MY126990A/en unknown
-
2002
- 2002-01-16 ZA ZA200200383A patent/ZA200200383B/en unknown
- 2002-01-16 NO NO20020241A patent/NO323141B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1268554C (zh) | 2006-08-09 |
| HU229093B1 (en) | 2013-07-29 |
| KR20020014833A (ko) | 2002-02-25 |
| EP1206415B1 (en) | 2004-05-06 |
| WO2001005712A1 (en) | 2001-01-25 |
| CA2378718C (en) | 2008-09-09 |
| ATE265989T1 (de) | 2004-05-15 |
| GB9916748D0 (en) | 1999-09-15 |
| TW539653B (en) | 2003-07-01 |
| DE60010475T2 (de) | 2005-04-14 |
| AU765970B2 (en) | 2003-10-09 |
| NO323141B1 (no) | 2007-01-08 |
| MXPA02000656A (es) | 2002-07-02 |
| HUP0201895A3 (en) | 2003-08-28 |
| AU6561400A (en) | 2001-02-05 |
| NO20020241D0 (no) | 2002-01-16 |
| ES2219375T3 (es) | 2004-12-01 |
| CZ2002149A3 (cs) | 2002-09-11 |
| SK502002A3 (en) | 2003-03-04 |
| DK1206415T3 (da) | 2004-08-09 |
| CA2378718A1 (en) | 2001-01-25 |
| BR0012619A (pt) | 2002-04-09 |
| JP2003505224A (ja) | 2003-02-12 |
| MY126990A (en) | 2006-11-30 |
| US6805803B1 (en) | 2004-10-19 |
| NZ516631A (en) | 2004-02-27 |
| HUP0201895A2 (en) | 2002-09-28 |
| CN1361752A (zh) | 2002-07-31 |
| NO20020241L (no) | 2002-03-06 |
| PT1206415E (pt) | 2004-08-31 |
| BR0012619B1 (pt) | 2013-06-11 |
| PL353594A1 (en) | 2003-12-01 |
| EP1206415A1 (en) | 2002-05-22 |
| DE60010475D1 (de) | 2004-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2378718C (en) | Process for flocculating suspensions | |
| EP0536194B1 (en) | Purification of aqueous liquor | |
| AU2005229336B2 (en) | Dewatering process | |
| US5112500A (en) | Purification of aqueous liquor | |
| US7070696B2 (en) | Process for flocculating suspensions | |
| US7252783B2 (en) | Treatment of suspensions | |
| EP0861214B1 (en) | Dewatering of aqueous suspensions | |
| US5451326A (en) | Chemical treatment of food processing wastes using dispersion polymers | |
| US5698109A (en) | Purification of aqueous liquor | |
| US5597490A (en) | DADMAC/vinyl trialkoxysilane copolymers for treatment of food processing wastes | |
| WO1999050195A1 (en) | Dewatering of organic suspensions with anionic and cationic polymers | |
| WO2002072482A2 (en) | Process for flocculating suspensions | |
| JPH11276808A (ja) | フィルタープレス用脱水剤および脱水方法 |