http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2010140530-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-07 |
| filingDate | 2010-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2012-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2010140530-A1 |
| titleOfInvention | Crystallization method of (meth) acrylic acid and adjustment method of polymerization inhibitor content of product (meth) acrylic acid |
| abstract | [PROBLEMS] To obtain (meth) acrylic acid of higher quality without performing additional purification treatment on (meth) acrylic acid obtained by crystallization operation accompanied by melting of (meth) acrylic acid crystals. A method for melting (meth) acrylic acid crystals is provided. Moreover, the adjustment method of the polymerization inhibitor content of a simple product (meth) acrylic acid is provided. In a crystallization method in which a (meth) acrylic acid crystal is melted while being wetted with a crystal melt, a polymerization inhibitor is added to the melt that melts after the start of melting, and the melt containing the polymerization inhibitor is added. All the crystals are melted while circulating the crystals. Moreover, the polymerization inhibitor content of the product (meth) acrylic acid is adjusted by adding a predetermined amount of a polymerization inhibitor that meets the product specifications to the melt that melts after the start of melting. [Selection] Figure 2 |
| priorityDate | 2009-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.