JPS579747A - Preparation of acrylamide - Google Patents
Preparation of acrylamideInfo
- Publication number
- JPS579747A JPS579747A JP8395680A JP8395680A JPS579747A JP S579747 A JPS579747 A JP S579747A JP 8395680 A JP8395680 A JP 8395680A JP 8395680 A JP8395680 A JP 8395680A JP S579747 A JPS579747 A JP S579747A
- Authority
- JP
- Japan
- Prior art keywords
- acrylonitrile
- copper
- acrylamide
- containing catalyst
- previously purified
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain acrylamide useful for preparing a high-molecular flocculating agent having improved cohesiveness and solubility, by limiting the oligomer content of previously purified acrylonitrile to not more than a specific value, followed by subjecting it catalytic hydration in the presence of a copper-containing catalyst.
CONSTITUTION: Acrylonitrile is previously purified by distillation, water extraction, etc. so that the content of acrylonitrile oligomers having molecular weight ≤1,000 is usually adjusted to ≤100ppm, preferably ≤5ppm. After that, acrylonitrile is subjected to catalytic hydration in the presence of a copper-containing catalyst, e.g., Raney copper, etc., for example, at 50W150°C, to give the desired acrylamide.
EFFECT: The formation of by-products during hydration reaction is suppressed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8395680A JPS579747A (en) | 1980-06-23 | 1980-06-23 | Preparation of acrylamide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8395680A JPS579747A (en) | 1980-06-23 | 1980-06-23 | Preparation of acrylamide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS579747A true JPS579747A (en) | 1982-01-19 |
Family
ID=13817021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8395680A Pending JPS579747A (en) | 1980-06-23 | 1980-06-23 | Preparation of acrylamide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS579747A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52108916A (en) * | 1976-03-05 | 1977-09-12 | Mitsubishi Chem Ind Ltd | Preparaion of acrylamide by hydration of acrylonitrile |
-
1980
- 1980-06-23 JP JP8395680A patent/JPS579747A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52108916A (en) * | 1976-03-05 | 1977-09-12 | Mitsubishi Chem Ind Ltd | Preparaion of acrylamide by hydration of acrylonitrile |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0191335A3 (en) | Preparation process of (6r)-tetrahydro-l-biopterin | |
JPS531103A (en) | Treatment of plating sludge | |
ES8506765A1 (en) | Process and polymers. | |
JPS579747A (en) | Preparation of acrylamide | |
ES8200321A1 (en) | CATALYTIC PROCEDURE TO OBTAIN C2-C5 OLEFINS. (Machine-translation by Google Translate, not legally binding) | |
JPS577453A (en) | Synthesis of acrylamide | |
JPS5679632A (en) | Preparation of polyhydric alcohol | |
JPS5746954A (en) | Synthesis of urea | |
JPS574951A (en) | Synthesizing method of acrylamide | |
JPS5751251A (en) | Heat treatment of die casting of hypereutectic a -si alloy | |
JPS572251A (en) | Synthesis of acrylamide | |
JPS5718652A (en) | Aqueous solution of acrylamide | |
JPS5758868A (en) | Processing of bamboo leaf and oak leaf, etc. | |
JPS5356633A (en) | Preparation of arylacetic acid | |
JPS5390650A (en) | Waste water treatment | |
JPS56153000A (en) | Production of stainless steel | |
NO833499L (en) | PROCEDURE FOR THE PREPARATION OF THE FORMAL HEAD AND THE CATALYST FOR USING THE PROCEDURE | |
JPS5762279A (en) | Purifying method of adenine | |
JPS5235767A (en) | Method of producing wter purifying agent | |
JPS56154428A (en) | Preparation of 2-(4'-isobutylphenyl)propanal | |
SU471357A1 (en) | The method of obtaining 1,2-bis- (dimethylamino) -ethane | |
ES8407015A1 (en) | Process for the preparation of N,N'-diformylhydrazine. | |
JPS574952A (en) | Cation exchange treating method for aqueous solution of acrylamide | |
JPS56133250A (en) | Purification of aqueous solution of acrylamide | |
JPS56163107A (en) | Production of acrylamide polymer |