JPS5659812A - Production of water-soluble high-molecular polymer - Google Patents
Production of water-soluble high-molecular polymerInfo
- Publication number
- JPS5659812A JPS5659812A JP13612279A JP13612279A JPS5659812A JP S5659812 A JPS5659812 A JP S5659812A JP 13612279 A JP13612279 A JP 13612279A JP 13612279 A JP13612279 A JP 13612279A JP S5659812 A JPS5659812 A JP S5659812A
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- acrylamide
- production
- water
- molecular polymer
- 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.)
- Pending
Links
Landscapes
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: To produce titled polymer which exhibits a good effect in a wide pH range and is useful as a coagulant, by polymerizing acrylamide containing a specified compound, and after granulation, hydrolyzing a portion of the polymer.
CONSTITUTION: An aqueous monomer solution, monomer concentration 10W 35wt%, containing acrylamide and 2W20mol% of a compound represented by the formula, wherein R1 and R2 are each H or a lower alkyl and M is an alkali metal is polymerized at -10W100°C in the presence of a polymerization catalyst comprising H2O2 and ferrous sulfate thereby to obtain a hydrated gel-like polymer. Next, the polymer is granulated into particles having an average particle diameter of 2W5mm, and then contacted with an aqueous solution of caustic soda or alkali carbonate to hydrolyze a portion of the acrylamide component of the polymer and thereby to form COOM groups. The hydrolyzed polymer is then dried at 40W130°C to a moisture content of below 10wt%.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13612279A JPS5659812A (en) | 1979-10-22 | 1979-10-22 | Production of water-soluble high-molecular polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13612279A JPS5659812A (en) | 1979-10-22 | 1979-10-22 | Production of water-soluble high-molecular polymer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5659812A true JPS5659812A (en) | 1981-05-23 |
Family
ID=15167810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13612279A Pending JPS5659812A (en) | 1979-10-22 | 1979-10-22 | Production of water-soluble high-molecular polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5659812A (en) |
-
1979
- 1979-10-22 JP JP13612279A patent/JPS5659812A/en active Pending
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