http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02204480-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f6e960aa6ad2ba6401030159343ebe68 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D211-44 |
| filingDate | 1989-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2cdc7bd94910947ba4b8264d6931ba06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_29d1081d536df0e654f5e53200d30309 |
| publicationDate | 1990-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02204480-A |
| titleOfInvention | Production of 2,2,6,6-tetramethyl-4-oxopiperidine |
| abstract | PURPOSE: To advantageously obtain the subject compound from acetones and ammonia in two stages by carrying out reactions in the first and second stages in respective separate reactors and simultaneously feeding ammonia formed in the reaction in the second stage to the first reactor. n CONSTITUTION: Reaction in the first stage for reacting acetone and/or a condensate 5 thereof with ammonia 6 in the presence of a catalyst 7 at 40-60°C temperature for 1-10hr average residence time to mainly produce acetonin and reaction in the second stage for further reacting the resultant first reaction solution 3 at 50-100°C temperature for 1-10hr average residence time to form the second reaction solution 4 and produce the subject compound (TAA) are carried out in the respective separate first reactor 1 and second reactor 2. Ammonia 8 formed in the reaction in the second stage is simultaneously fed to the first reactor 1 and effectively utilized. Thereby, the subject compound useful as a raw material for polymer stabilizers, bleaching agents, etc., from the afore- mentioned raw materials is safely obtained in high yield for a short reaction time by simple operation at a low cost. n COPYRIGHT: (C)1990,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2706056-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102012215900-A1 |
| priorityDate | 1989-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.