http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SU-1558910-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5f09e8b96fb2be6265df53b4f49836f8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D241-10 |
| filingDate | 1988-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1990-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e42a3d21f54bb75476c84c5499ba9bb4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9aa1952b2812cf58b4b9840379d2e826 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf4454040635ea9d6a7d9b5192e0acc9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea6b24b40b9f99a9a3face81fda362dd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe28a468765489f9cac9f9e749900f1a |
| publicationDate | 1990-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SU-1558910-A1 |
| titleOfInvention | Method of obtaining pyrazine |
| abstract | The invention relates to heterocyclic substances, in particular the production of pyrazine used in the manufacture of medicinal substances, insecticides, dyes and flavorings. The goal is to increase output and simplify the process. The latter is carried out by dehydrogenation of piperazine at 370-400 ° C with its vapor being supplied in a stream of carrier gas (H 2 , N 2 ), in 7-8-fold molar excess, in the presence of a catalyst containing 0.4-0, 6 wt.% Platinum and 2-3 wt.% JNO 3 on the carrier - AL 2 O 3 . These conditions make it possible to achieve a 70-76% yield of pyrazine and simplify the process by using vaporous piperazine, whose high elasticity makes it possible to supply it in large quantities per unit time. 1 il. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113717112-A |
| priorityDate | 1988-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.