http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007099783-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7ef01e33058cf740cf2197991be97af1 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-09 |
| filingDate | 2007-01-22^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_254c65f223ebbb50b5b5e91e9a7a37a9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e57fb6cd81264dd75ada7785090ecc9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_055b76036a89ed9d532a70f00b109884 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37a416ecc525c9f84d73161830656fd2 |
| publicationDate | 2007-04-19^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2007099783-A |
| titleOfInvention | Purification method of acrylamide aqueous solution |
| abstract | 【Task】 When purifying crude acrylamide aqueous solution with cation exchange resin, high-crosslinking degree macroporous strong acid cation exchange resin, especially free acid type resin, can be used stably without causing acrylamide polymerization trouble, etc. Efficiently produce acrylamide products. [Solution] In purifying the crude acrylamide aqueous solution, the ion exchange resin is subjected to a pretreatment including an alkali treatment, and before the resin tower is washed, the acrylamide aqueous solution remaining inside the tower is discharged with oxygen-containing water and / or oxygen-containing gas. Extrude. This prevents polymerization of acrylamide, and a macroporous strong acid cation exchange resin having a high degree of crosslinking, particularly a free acid type, can be used stably without trouble such as polymerization. [Selection figure] None |
| priorityDate | 2007-01-22^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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