| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-36 |
| filingDate |
2003-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23ac86b97365656cab3bc5d12b57ffd1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aadc6f26c051e5a3a1dd80b0e9221f1a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81a1239ab342e2f86e6ece45dad48fe0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78eead126ad8e92525017f882fb1bd05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee51b543462c43cbfe0c7883c4c2f491
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e36388fdb5c371eac996d0c8e4b3b28 |
| publicationDate |
2003-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2003149298-A1 |
| titleOfInvention |
Cracking of neo-C9 and neo-C13 carboxylic acids to either pivalic acid or methyl pivalate |
| abstract |
A method for production of pivalic acid comprising the steps of: (a) reacting isobutylene, carbon monoxide, and a first catalyst to produce a reaction mixture; (b) contacting the reaction mixture with water, thereby producing a crude acid product having pivalic acid and oligomeric neo-carboxylic acid; (c) separating the pivalic acid and the oligomeric neo-carboxylic acid from the crude acid product; (d) reacting the oligomeric neo-carboxylic acid with a source of carbon monoxide at a temperature of less than 200° C. in the presence of a second catalyst to produce a C 5 carbocation product, wherein the first and second catalyst are either the same or different; and (e) reacting the C 5 carbocation product with water; thereby producing pivalic acid having an overall yield of at least 80 wt. %. |
| priorityDate |
2001-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |