http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S60243031-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d93502a23a72b56472bc75854cfe7c60 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-00 |
| filingDate | 1984-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ec638a4d886448dbed058935e1f0b63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5c894732cb1048e498c35451bddf469 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa9cf388762569cfd7a1c4400cf3ac09 |
| publicationDate | 1985-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S60243031-A |
| titleOfInvention | Production of isoprene |
| abstract | PURPOSE: To produce isoprene from an isobutylene source and a formaldehyde source, economically, under specific condition, by using inexpensive spent BB fraction as the isobutylene source, and subjecting the source to the low-temperature reaction step, 4C compound removal step, high-temperature reaction step and purification step. n CONSTITUTION: An isobutylene source is made to react with a formaldehyde source continuously in a liquid phase in the presence of an acidic catalyst and water to obtain isoprene. In the above process, the butane-butene fraction containing isobutylene and produced as a by-product of the catalytic cracking of petroleum is used as the isobutylene source, and is subjected to (1) the low-temperature reaction step 4 comprising the synthesis of isoprene precursor by reacting with a formaldehyde source at 50W140°C, (2) the 4C compound removal step 13 to remove the 4C hydrocarbon from the liquid obtained by the step (1), (3) the high-temperature reaction step 16 to decompose the isoprene precursor in the liquid obtained by the step (2) to isoprene at 145W230°C, and (4) the purification step 23 to purify the produced isoprene. Isoprene can be produced efficiently from an inexpensive raw material with a simple apparatus. n COPYRIGHT: (C)1985,JPO&Japio |
| priorityDate | 1984-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.