NO313092B1 - Fremgangsmåte til klaring av prosessvann ved anvendelse av polymerer som klaringsmiddel - Google Patents
Fremgangsmåte til klaring av prosessvann ved anvendelse av polymerer som klaringsmiddel Download PDFInfo
- Publication number
- NO313092B1 NO313092B1 NO19975027A NO975027A NO313092B1 NO 313092 B1 NO313092 B1 NO 313092B1 NO 19975027 A NO19975027 A NO 19975027A NO 975027 A NO975027 A NO 975027A NO 313092 B1 NO313092 B1 NO 313092B1
- Authority
- NO
- Norway
- Prior art keywords
- polymer
- water
- accordance
- mol
- group
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 29
- 229920000642 polymer Polymers 0.000 title claims description 21
- 239000008395 clarifying agent Substances 0.000 title 1
- 239000000701 coagulant Substances 0.000 claims description 26
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 19
- 239000004815 dispersion polymer Substances 0.000 claims description 15
- 229920001577 copolymer Polymers 0.000 claims description 14
- 125000002091 cationic group Chemical group 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 11
- 239000000178 monomer Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 5
- -1 anionic salt Chemical class 0.000 claims description 5
- 238000005188 flotation Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 229920000371 poly(diallyldimethylammonium chloride) polymer Polymers 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- WQHCGPGATAYRLN-UHFFFAOYSA-N chloromethane;2-(dimethylamino)ethyl prop-2-enoate Chemical group ClC.CN(C)CCOC(=O)C=C WQHCGPGATAYRLN-UHFFFAOYSA-N 0.000 claims description 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 2
- 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 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 2
- DOKHEARVIDLSFF-UHFFFAOYSA-N prop-1-en-1-ol Chemical group CC=CO DOKHEARVIDLSFF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000356 contaminant Substances 0.000 claims 1
- 229920006158 high molecular weight polymer Polymers 0.000 claims 1
- 239000000243 solution Substances 0.000 description 24
- 239000006185 dispersion Substances 0.000 description 21
- 239000008394 flocculating agent Substances 0.000 description 18
- 238000002360 preparation method Methods 0.000 description 11
- 239000004816 latex Substances 0.000 description 10
- 229920000126 latex Polymers 0.000 description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 7
- 238000009300 dissolved air flotation Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 238000005352 clarification Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 4
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- XINQFOMFQFGGCQ-UHFFFAOYSA-L (2-dodecoxy-2-oxoethyl)-[6-[(2-dodecoxy-2-oxoethyl)-dimethylazaniumyl]hexyl]-dimethylazanium;dichloride Chemical compound [Cl-].[Cl-].CCCCCCCCCCCCOC(=O)C[N+](C)(C)CCCCCC[N+](C)(C)CC(=O)OCCCCCCCCCCCC XINQFOMFQFGGCQ-UHFFFAOYSA-L 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 230000005591 charge neutralization Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- JWOWFSLPFNWGEM-UHFFFAOYSA-N Cl.Cl.NC(=N)C(C)CN=NCC(C)C(N)=N Chemical compound Cl.Cl.NC(=N)C(C)CN=NCC(C)C(N)=N JWOWFSLPFNWGEM-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- LXEKPEMOWBOYRF-UHFFFAOYSA-N [2-[(1-azaniumyl-1-imino-2-methylpropan-2-yl)diazenyl]-2-methylpropanimidoyl]azanium;dichloride Chemical compound Cl.Cl.NC(=N)C(C)(C)N=NC(C)(C)C(N)=N LXEKPEMOWBOYRF-UHFFFAOYSA-N 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229940050176 methyl chloride Drugs 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011236 particulate material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- PUAQLLVFLMYYJJ-UHFFFAOYSA-N 2-aminopropiophenone Chemical compound CC(N)C(=O)C1=CC=CC=C1 PUAQLLVFLMYYJJ-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 239000004908 Emulsion polymer Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- 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
- Y10S210/902—Materials removed
- Y10S210/917—Color
-
- 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
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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Paper (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/743,437 US5750034A (en) | 1996-11-01 | 1996-11-01 | Hydrophilic dispersion polymers for the clarification of deinking process waters |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO975027D0 NO975027D0 (no) | 1997-10-31 |
| NO975027L NO975027L (no) | 1998-05-04 |
| NO313092B1 true NO313092B1 (no) | 2002-08-12 |
Family
ID=24988769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19975027A NO313092B1 (no) | 1996-11-01 | 1997-10-31 | Fremgangsmåte til klaring av prosessvann ved anvendelse av polymerer som klaringsmiddel |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US5750034A (ko) |
| EP (1) | EP0839767B1 (ko) |
| JP (1) | JPH10192868A (ko) |
| KR (1) | KR100468554B1 (ko) |
| AU (1) | AU723643B2 (ko) |
| BR (1) | BR9705405A (ko) |
| CA (1) | CA2219868A1 (ko) |
| DE (1) | DE69727030T2 (ko) |
| ES (1) | ES2210446T3 (ko) |
| ID (1) | ID18838A (ko) |
| MY (1) | MY126364A (ko) |
| NO (1) | NO313092B1 (ko) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5938937A (en) * | 1995-08-16 | 1999-08-17 | Nalco Chemical Company | Hydrophilic dispersion polymers for treating wastewater |
| US6235205B1 (en) | 1996-10-03 | 2001-05-22 | Cytec Technology Corp. | Aqueous dispersions |
| US6310124B1 (en) | 1996-10-03 | 2001-10-30 | Cytec Technology, Corp. | Aqueous dispersions |
| US6262168B1 (en) | 1998-03-11 | 2001-07-17 | Cytec Technology Corp. | Aqueous dispersions |
| KR100644901B1 (ko) | 1998-04-24 | 2006-11-13 | 날코 컴파니 | 제지공장의 폐수의 색 제거에 유용한 분산 중합체 |
| US6036868A (en) * | 1998-07-23 | 2000-03-14 | Nalco Chemical Company | Use of hydrophilic dispersion polymers for oily wastewater clarification |
| KR100278510B1 (ko) | 1998-08-24 | 2001-03-02 | 한성욱 | 콜로이달 실리카를 포함하는 미립자보류용 수용성 고분자 분산액 및 그 제조방법 |
| KR100278507B1 (ko) | 1998-08-24 | 2001-03-02 | 한성욱 | 무기응집제를 포함하는 폐수처리용 수용성 고분자 분산액 및 그 제조방법 |
| EP1137600A4 (en) * | 1998-12-03 | 2003-03-05 | Nalco Chemical Co | HYDROPHILE DISPERGING POLYMERS MADE OF DIALLYLDIMETHYL AMMONIUM CHLORIDE AND ACRYLAMIDE FOR PURIFICATION AND DISCOLORATION PROCESS WATER |
| US6365052B1 (en) | 2000-03-21 | 2002-04-02 | Nalco Chemical Company | Very high molecular weight cationic dispersion polymers for dewatering animal farm wastewater |
| US6398967B2 (en) * | 2000-04-20 | 2002-06-04 | Nalco Chemical Company | Method of clarifying water using low molecular weight cationic dispersion polymers |
| GB0018314D0 (en) * | 2000-07-27 | 2000-09-13 | Ciba Spec Chem Water Treat Ltd | Processes of reducing contamination from cellulosic suspensions |
| US6623658B1 (en) * | 2000-09-22 | 2003-09-23 | Industrial Chemical Consultants | Additive for controlling secondary contaminates |
| FR2815960B1 (fr) * | 2000-10-30 | 2003-02-21 | Atofina | Nouveaux acrylates comportant plusieurs groupes amino quaternaires dans la partie alcool, leur procede de fabrication et les ( co) polymeres obtenus a partir de ces monomeres |
| JP5159009B2 (ja) * | 2001-08-31 | 2013-03-06 | ハイモ株式会社 | 水溶性高分子分散液及びその製造方法 |
| JP5593791B2 (ja) * | 2010-03-31 | 2014-09-24 | 栗田工業株式会社 | 脱墨工程におけるフローテーター用異物除去剤、異物除去方法、及び脱墨パルプの製造方法 |
| US8764974B2 (en) * | 2010-04-16 | 2014-07-01 | Nalco Company | Processing aids to improve the bitumen recovery and froth quality in oil sands extraction processes |
| JP5961773B1 (ja) * | 2016-02-25 | 2016-08-02 | オー・ジー株式会社 | 澱粉糊 |
| US10934189B2 (en) | 2016-10-17 | 2021-03-02 | Ecolab Usa Inc. | Methods and compositions for clarifying produced waters for boiler feed waters |
| CN111268842B (zh) * | 2020-02-25 | 2022-05-20 | 濮阳市盛源能源科技股份有限公司 | 一种污水处理方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1267483A (en) * | 1984-11-19 | 1990-04-03 | Hisao Takeda | Process for the production of a water-soluble polymer dispersion |
| US4738750A (en) * | 1986-02-10 | 1988-04-19 | Stone Container Corp. | System and method for treating pulp and paper mill waste water |
| US4715962A (en) * | 1986-08-15 | 1987-12-29 | Nalco Chemical Company | Ampholytic diallyldimethyl ammonium chloride (DADMAC) copolymers and terpolymers for water clarification |
| US4835206A (en) * | 1986-10-01 | 1989-05-30 | Allied Colloids, Ltd. | Water soluble polymeric compositions |
| JPH0651755B2 (ja) * | 1988-10-14 | 1994-07-06 | ハイモ株式会社 | 水溶性カチオンポリマー分散液の製造方法 |
| US5032286A (en) * | 1988-10-18 | 1991-07-16 | Boise Cascade Corporation | Pulp mill effluent color removal process |
| US4874521A (en) * | 1988-10-18 | 1989-10-17 | Boise Cascade Corporation | Pulp mill effluent color removal process |
| EP0473653B1 (en) * | 1989-05-22 | 1995-11-08 | Commonwealth Scientific And Industrial Research Organisation | Effluent treatment |
| US5013456A (en) * | 1990-04-13 | 1991-05-07 | Nalco Chemical Company | Diallyldimethyl ammonium chloride polymers with anionic monomers for coagulating deinking process waters |
| US5178770A (en) * | 1991-07-12 | 1993-01-12 | Nalco Canada Inc. | Method of treating bctmp/ctmp wastewater |
| US5587415A (en) * | 1991-07-30 | 1996-12-24 | Hymo Corporation | Process for preparation of dispersion of water-soluble cationic polymer the dispersion produced thereby and its use |
| US5292793A (en) * | 1992-07-14 | 1994-03-08 | Nalco Chemical Company | Hydrophobic polyelectrolytes used in color removal |
| US5286806C1 (en) * | 1993-05-14 | 2001-01-30 | Cytec Tech Corp | Methods of making and using high molecular weight acrylamide polymers |
| DE4321819A1 (de) * | 1993-07-01 | 1995-01-12 | Henkel Kgaa | Verfahren zur Verringerung des Gehalts an feindispergierten Feststoffen in Prozeßwässern der Papierherstellung |
| US5454988A (en) * | 1994-01-12 | 1995-10-03 | Mitsubishi Corporation | Packing to be used in substance and/or heat exchanging tower |
| US5708071A (en) * | 1994-12-15 | 1998-01-13 | Hymo Corporation | Aqueous dispersion of an amphoteric water-soluble polymer, a method of manufacturing the same, and a treating agent comprising the same |
-
1996
- 1996-11-01 US US08/743,437 patent/US5750034A/en not_active Expired - Fee Related
-
1997
- 1997-10-31 ID IDP973573A patent/ID18838A/id unknown
- 1997-10-31 EP EP97119083A patent/EP0839767B1/en not_active Expired - Lifetime
- 1997-10-31 NO NO19975027A patent/NO313092B1/no not_active IP Right Cessation
- 1997-10-31 ES ES97119083T patent/ES2210446T3/es not_active Expired - Lifetime
- 1997-10-31 DE DE69727030T patent/DE69727030T2/de not_active Expired - Fee Related
- 1997-10-31 CA CA002219868A patent/CA2219868A1/en not_active Abandoned
- 1997-11-01 MY MYPI97005185A patent/MY126364A/en unknown
- 1997-11-01 KR KR1019970057559A patent/KR100468554B1/ko not_active IP Right Cessation
- 1997-11-03 BR BR9705405-4A patent/BR9705405A/pt not_active IP Right Cessation
- 1997-11-03 AU AU43679/97A patent/AU723643B2/en not_active Ceased
- 1997-11-04 JP JP9301876A patent/JPH10192868A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US5750034A (en) | 1998-05-12 |
| JPH10192868A (ja) | 1998-07-28 |
| CA2219868A1 (en) | 1998-05-01 |
| KR100468554B1 (ko) | 2005-03-16 |
| MY126364A (en) | 2006-09-29 |
| ES2210446T3 (es) | 2004-07-01 |
| NO975027L (no) | 1998-05-04 |
| NO975027D0 (no) | 1997-10-31 |
| AU4367997A (en) | 1998-05-07 |
| EP0839767A3 (en) | 1998-07-08 |
| AU723643B2 (en) | 2000-08-31 |
| DE69727030T2 (de) | 2004-06-09 |
| BR9705405A (pt) | 1999-11-03 |
| KR19980042020A (ko) | 1998-08-17 |
| EP0839767B1 (en) | 2004-01-02 |
| ID18838A (id) | 1998-05-14 |
| DE69727030D1 (de) | 2004-02-05 |
| EP0839767A2 (en) | 1998-05-06 |
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