| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-353 |
| filingDate |
1998-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa34e077eb31e7afeb5df0c29d296bca
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7308745f94ce67da68d073b5fd2e2107
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7473fc579262d489681712d7858a88e |
| publicationDate |
1999-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H11189567-A |
| titleOfInvention |
Method for producing fumaric acid |
| abstract |
(57) [Problem] To provide an efficient method for producing fumaric acid which can reuse a catalyst system. SOLUTION: A method for producing fumaric acid, comprising the following steps using maleic acid as a raw material. Step: A step of obtaining a fumaric acid crystal-containing slurry by isomerizing maleic acid in the presence of a water-soluble bromine donor compound and a compound having a standard electrode potential of 1 V or more. Step: a step of recovering fumaric acid crystals by solid-liquid separation from the fumaric acid crystal-containing slurry obtained in the step, adding maleic acid to the obtained mother liquor, and recycle-supplying the step. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003104934-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103204773-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103204773-A |
| priorityDate |
1997-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |