DE3528884C2 - - Google Patents
Info
- Publication number
- DE3528884C2 DE3528884C2 DE19853528884 DE3528884A DE3528884C2 DE 3528884 C2 DE3528884 C2 DE 3528884C2 DE 19853528884 DE19853528884 DE 19853528884 DE 3528884 A DE3528884 A DE 3528884A DE 3528884 C2 DE3528884 C2 DE 3528884C2
- Authority
- DE
- Germany
- Prior art keywords
- polyacrylamide
- reaction
- hours
- solution
- formaldehyde
- 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 - Lifetime
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 24
- 229920002401 polyacrylamide Polymers 0.000 claims description 22
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 12
- 238000006467 substitution reaction Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 125000006222 dimethylaminomethyl group Chemical group [H]C([H])([H])N(C([H])([H])[H])C([H])([H])* 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 3
- 238000013019 agitation Methods 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 238000003756 stirring Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 229920006317 cationic polymer Polymers 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 239000010801 sewage sludge Substances 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 241001503485 Mammuthus Species 0.000 description 1
- 238000006683 Mannich reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000005902 aminomethylation reaction Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
- XQKRYBXCYCKQLL-UHFFFAOYSA-N dimethylaminomethanol Chemical compound CN(C)CO XQKRYBXCYCKQLL-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000003334 secondary amides Chemical class 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
- C08F8/32—Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8404282A SE8404282L (sv) | 1984-08-28 | 1984-08-28 | Katjonisk polymer och dess framstellning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3528884A1 DE3528884A1 (de) | 1986-03-27 |
| DE3528884C2 true DE3528884C2 (enrdf_load_stackoverflow) | 1990-03-29 |
Family
ID=20356830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853528884 Granted DE3528884A1 (de) | 1984-08-28 | 1985-08-12 | Kationisches polymer und seine darstellung |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH669200A5 (enrdf_load_stackoverflow) |
| DE (1) | DE3528884A1 (enrdf_load_stackoverflow) |
| SE (1) | SE8404282L (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE68913642D1 (de) * | 1988-03-25 | 1994-04-14 | Metalfix Sa | Chelatbildende harze und verfahren zur verwendung zum extrahieren von metallionen. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265835A (en) * | 1979-09-10 | 1981-05-05 | The Dow Chemical Company | Conversion of carboxamide to N-substituted derivative thereof using carbon magnetic analysis |
-
1984
- 1984-08-28 SE SE8404282A patent/SE8404282L/xx not_active Application Discontinuation
-
1985
- 1985-08-12 DE DE19853528884 patent/DE3528884A1/de active Granted
- 1985-08-22 CH CH361885A patent/CH669200A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3528884A1 (de) | 1986-03-27 |
| SE8404282L (sv) | 1986-03-01 |
| SE8404282D0 (sv) | 1984-08-28 |
| CH669200A5 (de) | 1989-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8127 | New person/name/address of the applicant |
Owner name: SANDOZ-PATENT-GMBH, 7850 LOERRACH, DE |
|
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8339 | Ceased/non-payment of the annual fee |