| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fb2edb0f237a90d982f2dce09ad61976 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C55-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate |
1985-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14e0965618aeede2b3074c3a579d8700
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_128f0bb935673cc4105b4ba99ff57e05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c64c96c5df57c71b3c4f0d3e08fa2a49 |
| publicationDate |
1986-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-S61204148-A |
| titleOfInvention |
Production of succinic acid |
| abstract |
PURPOSE: In obtaining succinic acid by hydrogenating maleic anhydride or maleic acid in an aqueous medium in the presence of a noble metallic catalyst, to prevent deactivation of the catalyst and to reuse it, by pretreating maleic anhydride or maleic acid of raw material with a cation exchange resin. n CONSTITUTION: In obtaining succinic acid by hydrogenating maleic anhydride or maleic acid by the use of a noble netalli catalyst, maleic anhydride or maleic acid of raw material is pretreated with a cation exchange resin (preferably strongly acidic cation exchange resin) (treatment with cation exchange resin in a molten state at a temperature in a range of = the melting point anhydrice W= the heat-resistant temperature of cation exchange resin, or treatment of aqueous solution of maleic acid with cation exchange resin), maleic anhydride or maleic acid is hydrogenated, and a mother liquor (preferably circulating mother liquor is treated with cation exchange resin) from which crystallized succinic acid is removed is circulated as an aqueous medium. n COPYRIGHT: (C)1986,JPO&Japio |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006321997-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1097121-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6794535-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102417445-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02121946-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006321996-A |
| priorityDate |
1985-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |