http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SU-1425184-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_357d107d705051494672fbb866bf22ff |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-16 |
| filingDate | 1986-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1988-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b5cf981fc956bcb74782b6d98c5b745 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b17e7da68c90b373846bc0a7586dbe2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_763abfa161b856fe00bfaf3d5d6f2f89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc45e4924365a8fce045a06946ba25a9 |
| publicationDate | 1988-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SU-1425184-A1 |
| titleOfInvention | Method of producing diphenyl methane |
| abstract | The invention relates to aromatic hydrocarbons, in particular, a process for the preparation of diphenylmethane used for the production of benzophenone, dyes, in the perfumery and paints and varnishes industry. The goal is to increase the yield of diphenylmethane and to simplify the process. The latter is treated with waste from the production of benzyl alcohol, consisting of it from a mixture of dibenzyl ether and benzyl alcohol, with benzene in the presence of a catalytic system containing 85-95% H2SO4 and concentrated acetic acid or acetic anhydride (their molar ratio 1: (0.3- -0.5)) with boiling and vigorous stirring (1 h 15 min). After separation of the organic layer, 0.8-1.5% of the total mass of alkali metal carbonate is introduced into it and the target product is isolated by distillation. The method allows to increase the yield of diphenylmethane from 78 to 98% and simplify the process by eliminating several stages and the need to use complex equipment. ё (L |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0369130-A1 |
| priorityDate | 1986-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.