http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-490455-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 |
| filingDate | 1998-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2002-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d9fe3466569e665113e2c1e0be2ada63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89cc402ca3b9e23442fd3339e30bf47d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6bf33672f278a7041f47839841d18561 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e35cf8e5132295ab60694b551888b0df http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d05e1dcabbbd3655fff4cbdb7769e8a1 |
| publicationDate | 2002-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-490455-B |
| titleOfInvention | Processes for isolation or preparation of acrylic acid or methacrylic acid |
| abstract | A process for preparing acrylic acid or methacrylic acid comprises preparing a gaseous product mixture having essentially the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4-alkanes, -alkenes, -alkanols and/or -alkanals and/or precursors thereof to form acrylic acid or methacrylic acid isolation of acrylic acid or methacrylic acid from the gaseous product mixture is achieved by the process containing following steps: (a) condensing said gaseous product mixture, (b) crystallizing acrylic acid or methacrylic acid from the solution obtained in step (a), (c) removing the resulting crystals from me mother liquor, and (d) recycling at least a portion of said mother liquor from step (c) into step (a). |
| priorityDate | 1997-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.