| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-4205 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0239
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0235
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-40 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-00 |
| filingDate |
1978-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42e095e678fdd196be13fc5d4b84f946
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8775e715685eea4af383f70e9f0e89e5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a062b0261ab326cc999d97972220f680
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6a47cfcbdb56428716d1b2d459b805c |
| publicationDate |
1979-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4172782-A |
| titleOfInvention |
Recovery of catalyst |
| abstract |
An organic quaternary ammonium salt used as a catalyst in a reaction between a benzylnitrile and a halide in the presence of an alkali to obtain an α-alkyl- or α-phenyl-benzylnitrile, is recovered effectively from the reaction solution containing the α-alkyl- or α-phenyl-benzylnitrile, the alkali and the catalyst, by adding water to the reaction solution to make the alkali concentration of the water layer 10% by weight or below, and then separating the water layer containing the organic quaternary ammonium salt from the oil layer containing the α-alkyl- or α-phenyl-benzylnitrile. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5030757-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6734325-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7790646-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8765622-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0763521-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5483007-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8722556-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6740781-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5484201-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7737068-B2 |
| priorityDate |
1977-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |