ES463547A1 - Procedimiento de modificacion quimica de una poliacrilamida para dotarla de naturaleza cationica - Google Patents
Procedimiento de modificacion quimica de una poliacrilamida para dotarla de naturaleza cationicaInfo
- Publication number
- ES463547A1 ES463547A1 ES463547A ES463547A ES463547A1 ES 463547 A1 ES463547 A1 ES 463547A1 ES 463547 A ES463547 A ES 463547A ES 463547 A ES463547 A ES 463547A ES 463547 A1 ES463547 A1 ES 463547A1
- Authority
- ES
- Spain
- Prior art keywords
- flocculation
- raw water
- suspended solids
- polyacrylamide
- clarifying raw
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 230000016615 flocculation Effects 0.000 title 1
- 238000005189 flocculation Methods 0.000 title 1
- 239000007787 solid Substances 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- 229920002401 polyacrylamide Polymers 0.000 abstract 3
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 abstract 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 abstract 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 abstract 1
- 125000003368 amide group Chemical group 0.000 abstract 1
- 125000002091 cationic group Chemical group 0.000 abstract 1
- 238000007385 chemical modification Methods 0.000 abstract 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 abstract 1
- 229940050176 methyl chloride Drugs 0.000 abstract 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/44—Preparation of metal salts or ammonium salts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Procedimiento de modificación química de una poliacrilamida para dotarla de naturaleza cationica, caracterizado porque comprende las etapas de: (a) hacer reaccionar una poliacrilamida que contiene de 100 a 1.600 unidades recurrente de acrilamida aproximadamente, con formaldehído y dimetilamina, de manera que al menos reaccione 50 moles % de los grupos amida de dicha poliacrilamida a una temperatura de 40ºC aproximadamente, para formar la base de Mannich correspondiente; y (b) alquiler la base de Mannich a un pH de 4-7, con sulfato de dimetilo o cloruro de metilo.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73557776A | 1976-10-26 | 1976-10-26 | |
| US05/792,746 US4137165A (en) | 1976-10-26 | 1977-05-02 | Process for clarifying raw water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES463547A1 true ES463547A1 (es) | 1979-10-16 |
Family
ID=27112915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES463547A Expired ES463547A1 (es) | 1976-10-26 | 1977-10-26 | Procedimiento de modificacion quimica de una poliacrilamida para dotarla de naturaleza cationica |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5389255A (es) |
| AU (1) | AU515197B2 (es) |
| BR (1) | BR7707091A (es) |
| CA (1) | CA1085522A (es) |
| DE (1) | DE2746102A1 (es) |
| ES (1) | ES463547A1 (es) |
| FR (1) | FR2369215A1 (es) |
| GB (1) | GB1588342A (es) |
| IT (1) | IT1090037B (es) |
| NL (1) | NL7711749A (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8512937D0 (en) * | 1985-05-22 | 1985-06-26 | Allied Colloids Ltd | Water treatment |
| JP2750525B2 (ja) * | 1988-05-31 | 1998-05-13 | 三菱レイヨン株式会社 | 帯電防止剤の製造方法及びメタクリル樹脂組成物 |
| US5178774A (en) * | 1990-06-29 | 1993-01-12 | Allied Colloids Limited | Purification of aqueous liquor |
| US5627260A (en) * | 1993-02-12 | 1997-05-06 | Cytec Technology Corp. | Quaternized tertiary aminomethyl acrylamide polymer microemulsions with improved performance |
| CN115784358B (zh) * | 2022-11-28 | 2023-07-11 | 嘉兴沃特泰科环保科技股份有限公司 | 一种水回收系统用上浮助剂及其制备方法和应用 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB805526A (en) * | 1955-12-05 | 1958-12-10 | Dow Chemical Co | Method for clarifying water |
| US3367918A (en) * | 1964-08-04 | 1968-02-06 | Dow Chemical Co | Polymeric amide-secondary dialkyl ammonium salt-paraformaldehyde flocculant composition and method |
| US3897333A (en) * | 1971-02-24 | 1975-07-29 | Allied Colloids Mfg | Flocculating agents |
-
1977
- 1977-09-13 CA CA286,634A patent/CA1085522A/en not_active Expired
- 1977-09-16 AU AU28871/77A patent/AU515197B2/en not_active Expired
- 1977-09-21 GB GB3941277A patent/GB1588342A/en not_active Expired
- 1977-10-13 DE DE19772746102 patent/DE2746102A1/de not_active Withdrawn
- 1977-10-14 IT IT5142277A patent/IT1090037B/it active
- 1977-10-24 BR BR7707091A patent/BR7707091A/pt unknown
- 1977-10-24 FR FR7731980A patent/FR2369215A1/fr not_active Withdrawn
- 1977-10-25 JP JP12732577A patent/JPS5389255A/ja active Pending
- 1977-10-26 NL NL7711749A patent/NL7711749A/xx not_active Application Discontinuation
- 1977-10-26 ES ES463547A patent/ES463547A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2369215A1 (fr) | 1978-05-26 |
| JPS5389255A (en) | 1978-08-05 |
| IT1090037B (it) | 1985-06-18 |
| BR7707091A (pt) | 1978-08-01 |
| NL7711749A (nl) | 1978-04-28 |
| AU2887177A (en) | 1979-03-22 |
| DE2746102A1 (de) | 1978-04-27 |
| AU515197B2 (en) | 1981-03-19 |
| CA1085522A (en) | 1980-09-09 |
| GB1588342A (en) | 1981-04-23 |
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