| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-235
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-235
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-122
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-487 |
| filingDate |
2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_baba6009d8b91da930317ea9849d3f2f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d76d98a757655324bd1ffbae9193c09b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_500f25ca98efc3d27a9a7f2d5ac6a5be
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a9af33e63d09f03a8b9acd52d743a77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67f0f029958fd88d5b8194caaa6581dd |
| publicationDate |
2022-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-114945550-A |
| titleOfInvention |
Method for preparing C3-5 saturated aliphatic carboxylic acid |
| abstract |
A method for preparing a saturated aliphatic carboxylic acid having 3-5 carbon atoms by oxidizing the corresponding aldehyde with oxygen, wherein (a) converts the corresponding aldehyde to obtain a mixture containing the saturated aliphatic carboxylic acid and the corresponding aldehyde of ≤2 mol % with respect to the saturated aliphatic carboxylic acid, (b) in the liquid phase the mixture obtained in step (a) is at 80- Heat treatment at a temperature of 250° C. and a pressure of 0.1-2MPa abs for 0.25-100 hours, and (c) distilling the mixture obtained in step (b) in a distiller to obtain a distillate containing ≥ 90 wt. % distillate of the saturated aliphatic carboxylic acid and having an active oxygen content of 0-25 ppm by weight. |
| priorityDate |
2020-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |