IT1117155B - Agente di flocculazione e di ritenzione a base di poliacrilammidi - Google Patents
Agente di flocculazione e di ritenzione a base di poliacrilammidiInfo
- Publication number
- IT1117155B IT1117155B IT51002/76A IT5100276A IT1117155B IT 1117155 B IT1117155 B IT 1117155B IT 51002/76 A IT51002/76 A IT 51002/76A IT 5100276 A IT5100276 A IT 5100276A IT 1117155 B IT1117155 B IT 1117155B
- Authority
- IT
- Italy
- Prior art keywords
- flacculation
- polyacrylamids
- agent based
- retention agent
- retention
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
- D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
- D21H17/45—Nitrogen-containing groups
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/24—Homopolymers or copolymers of amides or imides
- C08L33/26—Homopolymers or copolymers of acrylamide or methacrylamide
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
- D21F1/82—Pulp catching, de-watering, or recovering; Re-use of pulp-water adding fibre agglomeration compositions
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
- D21H17/42—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
- D21H17/43—Carboxyl groups or derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Paper (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2538281A DE2538281B2 (de) | 1975-08-28 | 1975-08-28 | Retentions- und Flockungsmittel auf Basis von Polyacrylamiden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1117155B true IT1117155B (it) | 1986-02-17 |
Family
ID=5955039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT51002/76A IT1117155B (it) | 1975-08-28 | 1976-08-24 | Agente di flocculazione e di ritenzione a base di poliacrilammidi |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4104226A (it) |
| JP (1) | JPS5228546A (it) |
| AU (1) | AU503560B2 (it) |
| CA (1) | CA1050680A (it) |
| DE (1) | DE2538281B2 (it) |
| FI (1) | FI762459A (it) |
| FR (1) | FR2322197A1 (it) |
| GB (1) | GB1549874A (it) |
| IT (1) | IT1117155B (it) |
| NL (1) | NL7609582A (it) |
| SE (1) | SE410793B (it) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57147847A (en) * | 1981-03-09 | 1982-09-11 | Nec Corp | Gas discharge display panel |
| FR2508842A1 (fr) * | 1981-07-02 | 1983-01-07 | Arjomari Prioux | Feuilles de surface pour revetement de pieces plastiques |
| US4676913A (en) * | 1981-12-18 | 1987-06-30 | The Dow Chemical Company | Coal liquor clarification with water-soluble, high molecular weight polymers having low concentration of cationic moieties |
| US4451761A (en) * | 1982-01-13 | 1984-05-29 | Burroughs Corporation | Glass composition and gas-filled display panel incorporating the glass as an insulating layer |
| EP0119493A1 (en) * | 1983-03-16 | 1984-09-26 | American Cyanamid Company | Use of copolymers of 2-acrylamido-2-methylpropane sulfonic acid for improving retention and dewatering in the manufacture of paper |
| US4584339A (en) * | 1984-06-29 | 1986-04-22 | Exxon Research And Engineering Co. | Dilatant behavior of interpolymer complexes in aqueous solution |
| US4908100A (en) * | 1989-02-13 | 1990-03-13 | Calgon Corporation | Hydrolyzed polyacrylamide blends as starch retention aids |
| DE4111334A1 (de) * | 1990-11-14 | 1992-05-21 | Henkel Kgaa | Neue wasser-in-oel-emulsionen |
| DE4421455A1 (de) * | 1994-06-18 | 1995-12-21 | Sued Chemie Ag | Verfahren zur Aufbereitung von gebrauchten wäßrigen Alkalibentonit-Suspensionen |
| JPH10204492A (ja) * | 1997-01-20 | 1998-08-04 | Toyota Motor Corp | 水溶性洗浄剤 |
| GB9801524D0 (en) * | 1998-01-23 | 1998-03-25 | Allied Colloids Ltd | Thickening of aqueous mineral suspensions |
| GB9807047D0 (en) * | 1998-04-01 | 1998-06-03 | Allied Colloids Ltd | Dewatering of organic suspensions |
| JP2000084567A (ja) * | 1998-09-11 | 2000-03-28 | Fuji Heavy Ind Ltd | 切削油含有廃水の処理方法 |
| US6417268B1 (en) | 1999-12-06 | 2002-07-09 | Hercules Incorporated | Method for making hydrophobically associative polymers, methods of use and compositions |
| US8883194B2 (en) * | 2007-11-09 | 2014-11-11 | Honeywell International, Inc. | Adsorbent-containing hemostatic devices |
| US8795718B2 (en) * | 2008-05-22 | 2014-08-05 | Honeywell International, Inc. | Functional nano-layered hemostatic material/device |
| US11905462B2 (en) * | 2020-04-16 | 2024-02-20 | PfP INDUSTRIES, LLC | Polymer compositions and fracturing fluids made therefrom including a mixture of cationic and anionic hydratable polymers and methods for making and using same |
| BE1028692B1 (nl) | 2021-03-13 | 2022-05-04 | Eurochem Antwerpen | ODDA-Proces voor de productie van stikstofhoudende meststoffen met verbeterde kalkverwijdering |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1415958A (fr) * | 1964-10-27 | 1965-10-29 | Monsanto Co | Compositions polymères pour la clarification de l'eau |
| FR1521163A (fr) * | 1966-04-29 | 1968-04-12 | American Cyanamid Co | Nouveaux agents de renforcement du papier |
| US3806485A (en) * | 1971-11-18 | 1974-04-23 | Nalco Chemical Co | Stable liquid dispersions of water soluble polymers and products produced therefrom |
| US3799902A (en) * | 1972-01-31 | 1974-03-26 | Nalco Chemical Co | Polymeric latices and sodium aluminate |
| JPS547718B2 (it) * | 1972-04-10 | 1979-04-09 | ||
| DE2322883A1 (de) * | 1973-05-07 | 1974-11-28 | Roehm Gmbh | Wasserloesliche polymerisate |
-
1975
- 1975-08-28 DE DE2538281A patent/DE2538281B2/de not_active Withdrawn
-
1976
- 1976-07-19 CA CA257,260A patent/CA1050680A/en not_active Expired
- 1976-07-20 AU AU16042/76A patent/AU503560B2/en not_active Expired
- 1976-07-21 US US05/707,432 patent/US4104226A/en not_active Expired - Lifetime
- 1976-08-24 IT IT51002/76A patent/IT1117155B/it active
- 1976-08-26 SE SE7609474A patent/SE410793B/xx unknown
- 1976-08-26 FI FI762459A patent/FI762459A/fi not_active Application Discontinuation
- 1976-08-27 FR FR7625992A patent/FR2322197A1/fr active Granted
- 1976-08-27 NL NL7609582A patent/NL7609582A/xx not_active Application Discontinuation
- 1976-08-27 JP JP51101766A patent/JPS5228546A/ja active Pending
- 1976-08-27 GB GB35706/76A patent/GB1549874A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2538281B2 (de) | 1980-07-17 |
| FI762459A (it) | 1977-03-01 |
| US4104226A (en) | 1978-08-01 |
| SE410793B (sv) | 1979-11-05 |
| CA1050680A (en) | 1979-03-13 |
| AU1604276A (en) | 1978-01-26 |
| NL7609582A (nl) | 1977-03-02 |
| DE2538281A1 (de) | 1977-03-10 |
| FR2322197A1 (fr) | 1977-03-25 |
| AU503560B2 (en) | 1979-09-06 |
| GB1549874A (en) | 1979-08-08 |
| FR2322197B1 (it) | 1980-05-09 |
| JPS5228546A (en) | 1977-03-03 |
| SE7609474L (sv) | 1977-03-01 |
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