http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2013135116-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C319-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C319-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-16 |
| filingDate | 2011-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2013135116-A |
| titleOfInvention | METHOD FOR PRODUCING METHLMERCAPTOPROPIN ALDEHYDE |
| abstract | 1. A method of producing methyl mercaptopropionic aldehyde from gaseous acrolein and methyl mercaptan, characterized in that at one stage it simultaneously (a) from a mixture of at least one compound from the group consisting of hemi thioacetal methyl mercaptopropionic aldehyde, methyl mercaptopropionic aldehyde and methyl mercaptan gas (b) in this mixture, acrolein is converted into methyl mercaptopropionic aldehyde by reaction with methyl mercaptan and / or hemi-acetal methyl mercaptopropionic aldehyde egid and (c) of this mixture was removed impurities and side produkty.2. The method according to claim 1, characterized in that its stage is carried out in an adsorber-reactor. The method according to p. 1 or 2, characterized in that the mixture contains hemiethoacetal methyl mercaptopropionic aldehyde, resulting from the addition of methyl mercaptan to methyl mercaptopropionic aldehyde, in a concentration of from 0.1 to 10 wt. %, preferably from 1 to 10 wt. %.4. A method according to claim 1 or 2, characterized in that impurities and by-products are removed from the mixture by distillation at absolute pressure in the range from 0.3 to 5 bar, preferably from 1 to 2 bar, and at a temperature in the range from 5 to 70 ° C, preferably from 5 to 20 ° C. 5. A method according to claim 1 or 2, characterized in that the removed impurities contain at least one compound from the group consisting of dimethyl sulfide, acetaldehyde, water, dimethyl disulfide, methanol, carbon dioxide, propane, propene, hydrogen sulfide and dimethyl ether. A method according to claim 1 or 2, characterized in that methyl mercaptan is continuously fed into the mixture in liquid and / or gaseous form. The method according to p. 1 or 2, characterized in that its stage is carried out in |
| priorityDate | 2010-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.