http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102004034316-B4
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95c89084d61fd47ae93470ca7c96f184 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-00 |
| filingDate | 2004-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2f3c0cb30a034095b6b7a9f1ba96a3e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b12fba6f131decde5b5e653ff9a3b27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46f59ebcc25faeacaa6c797584e76b06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f60cbe0b69b48ba507c4b51843a664b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9bc90d08bb8569165fa719523cf37bb9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f0bcc2e002e09b49dc25aa162eef773 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69416f1656dd84ce12104bbf84b19ee1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_331583beb0ddbf8b7f14afe2df3d0c8a |
| publicationDate | 2015-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-102004034316-B4 |
| titleOfInvention | A process for the preparation of (meth) acrylic acid |
| abstract | Process for the preparation of (meth) acrylic acid, in which first a crude (meth) acrylic acid is prepared and this crude (meth) acrylic acid is subsequently purified, preferably continuously, with the - preferably continuous - purification of the crude (meth) Acrylic acid comprises the following process steps: a) in a composition containing (meth) acrylic acid and maleic acid, maleic anhydride and optionally fumaric acid as impurities, by controlled hydrolysis, the maleic anhydride over a period of 1 to 250 hours, ensuring that water in an amount in the range of 0 From 01 to less than 34% by weight, based on the total weight of the composition, contained in the composition, at least 50% converted to maleic acid and the impurities maleic acid and / or fumaric acid precipitated in crystalline form from the composition; b) the crystalline impurities precipitated from the composition maleic acid and / or the fumaric acid are separated off, |
| priorityDate | 2004-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.