http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20140060528-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4f6ee64e420ffdad3e2fb360c93302a0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-252 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0013 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0036 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48 |
| filingDate | 2011-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a9d845f24fca072644f1ca587486686 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc22bc0c42b937b65819110167505a48 |
| publicationDate | 2014-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20140060528-A |
| titleOfInvention | Process for producing methacrylic acid and methacrylic acid ester |
| abstract | The present invention, method steps: a1) oxidizing the gas phase of at least one C 4 compound, to give a reaction phase comprising methacrylic acid; a2) quenching the reaction phase to obtain a crude aqueous phase comprising methacrylic acid; a3) extracting at least a part of the methacrylic acid from the crude aqueous phase containing methacrylic acid with an organic solvent to obtain a crude organic phase comprising methacrylic acid, and a component: i. More preferably from 75% to 99.9% by weight, and even more preferably from 75% to 99.8% by weight, based on the total weight of the first aqueous phase, More preferably in the range of from 76 to 98.5% by weight, more preferably in the range of from 77 to 98% by weight, even more preferably in the range of from 78 to 97.5% by weight, Water in the range of 79% to 95% by weight, even more preferably in the range of 80% to 90% by weight; and ii. Preferably from 0.1% to 35% by weight, preferably from 0.2% to 30% by weight, more preferably from 1% to 25% by weight, based on the total weight of the first aqueous phase Still more preferably in the range of from 1.5% by weight to 24% by weight, more preferably in the range of from 2% by weight to 23% by weight, even more preferably in the range of from 2.5% by weight to 22% by weight, To 21% by weight, even more preferably from 20% by weight, of at least one organic compound, wherein i. And ii. Obtaining a first aqueous phase wherein the sum of the weights is 100% by weight; a4) separating and optionally purifying at least a portion of the methacrylic acid from the crude organic phase comprising methacrylic acid; a5) optionally, esterifying at least a portion of the methacrylic acid obtained in step a4); b) separating at least a portion of the water contained in the first aqueous phase obtained in step a3) from at least a part of the at least one component ii., so that at least a second component ii. Obtaining an organic phase comprising at least one component ii. c) optionally, separating at least a portion of the at least one organic compound from the second aqueous phase obtained in step b) to obtain a third aqueous phase; d) optionally, separating at least a portion of at least one component ii. from the organic phase obtained in step b), a process for the preparation of at least one of methacrylic acid and methacrylic acid esters, And to an apparatus for the production of at least one of methacrylic acid and methacrylic acid esters. |
| priorityDate | 2011-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 123.