http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2615887-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-353 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-353 |
| filingDate | 1976-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3256b1579c7bc8dad6883d2485c8a359 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bfa77b082bfed963e3eed77b131236cc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1282104a616e429f818092815d8ef0b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec8b0ba8b5b76ed859df939cae5c0f7a |
| publicationDate | 1977-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2615887-A1 |
| titleOfInvention | PROCESS FOR THE PRODUCTION OF METHACRYLIC ACID AND METHACRYLIC ACID METHYLESTER |
| abstract | Methacrylic acid and methyl methacrylate CH2 = C(CH3)-COOR' (where R1 is H or Me) are made by reacting propionic acid or methyl propionate CH3-CH2-COOR' with formaldehyde dimethylacetal CH3-O-CH2-O-CH3 (I) for 0.1-100 seconds. Reactions is in the presence of (i) 0-0.5 moles water per mol (I) and (ii) a catalyst comprising phosphates and/or silicates of Mg, Ca, Al, Zr, Th or Ti, opt. with the addn. of oxides of Zr, Al, Th and/or Ti and/or boric acid and/or urea. Catalyst is opt. modified by alkali(ne earth) carboxylates or cpds. forming these under the prevailing conditions, pref. with alkali propionate, KOH or LiOH. Process proceeds with high space-time yield and high selectivity to the prodn. of the desired prod. No additional diluent is required and the post treatment for recovery of the prod. is simple and economical in expenditure of energy. The unconverted (I) is easily recycled to the reaction. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0122782-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4147718-A |
| priorityDate | 1976-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 76.