http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100554861-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-04 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 |
| filingDate | 1998-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2006-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2006-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100554861-B1 |
| titleOfInvention | Purification method of (meth) acrylic acid |
| abstract | The present invention relates to a method of purifying (meth) acrylic acid by adding a second component to crude (meth) acrylic acid and crystallizing the resulting solution. In particular, this method adds one or more polar organic materials as crude second to crude (meth) acrylic acid at a concentration of 1 to 35%, crystallizes the resulting (meth) acrylic acid solution, and thus precipitates (meth) acrylic acid crystals. Separation from the mother liquor. This method is economical so that crude (meth) acrylic acid can be liberated from impurities that are difficult to remove by distillation without using a large amount of second components or cryogenic temperatures. In addition, the remaining mother liquor may itself be used as a raw material for producing (meth) acrylic acid ester.n n n (Meth) acrylic acid, purification, organic material, crystallization, crystal precipitation temperature, freezing point, crude (meth) acrylic acid, second component, polar organic material, mother liquor, (meth) acrylic acid ester, starting material, alcohol. |
| priorityDate | 1997-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.