| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b986f13442054468f5a842670bc6b257 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-347 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-347 |
| filingDate |
1991-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1993-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d9b3c5137cf149788b75908bef2abf7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_22a47fa6dda6ecaf7d581ee702ba8908
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2c967fe0d8b69a7ad68ef9b9952341e0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5375d7b64cadac0d688d00e1436d6f3 |
| publicationDate |
1993-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5189215-A |
| titleOfInvention |
Process for the preparation of storage-stable levulinic acid |
| abstract |
A process for the preparation of color-stable levulinic acid by saponification of acetylsuccinates with aqueous mineral acids, by continuously treating the starting products with steam in counter-current in a reactor cascade, the reaction being carried out above the boiling point of the alcohol being formed in the reaction or above the boiling point of the aqueous azeotrope being formed. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10550067-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014037560-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013034763-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3728487-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10369492-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017009211-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3115352-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3115351-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013000998-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010138957-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8962883-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10702792-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11370996-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2540871-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3115353-A1 |
| priorityDate |
1989-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |