| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cebc9740ef706cde29e885504f274ffa
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-47 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate |
2004-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32759483915007cf3d0321f77ebc45b3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ef9ab67b25b5ce5bc2743c5c2b569a7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1777814cfb71505296a312ae1c0342af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c3e8ec2e6bf5ebf31c8dbc66f7f89bd8 |
| publicationDate |
2019-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
BR-PI0405631-B1 |
| titleOfInvention |
Process for producing a (meth) acrylic ester |
| abstract |
"Process for (meth) acrylic acid purification and process for producing (meth) acrylic esters". The present invention provides a process for purifying (meth) acrylic acid by efficiently removing the transition metal components from crude (meth) acrylic acid, which contains the transition metal components as impurities. When crude (meth) acrylic acid containing the transition metal components as impurities contacts the cation exchange resin to remove the transition metal components therefrom, water is first added to the crude (meth) acrylic acid before contact of the crude (meth) acrylic acid with the cation exchange resin. In the preferred embodiment of the present invention, the transition metal component is manganese. |
| priorityDate |
2003-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |