http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10774058-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-33 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-33 |
| filingDate | 2018-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_304951a5395bb7df33e907bba49e84cc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ac4ac9afa3d4c9305e274b2da9505ac http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e87aa9be1bd7cfe4bd78c92aa52e5056 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f63cfc8ce85272ad3f6d40682b37305f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15fe3f3d20e119f612bcafebe83c6775 |
| publicationDate | 2020-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-10774058-B2 |
| titleOfInvention | Process for preparing D-glucaro-6,3-lactone |
| abstract | A process for preparing D-glucaro-6,3-lactone from a salt of D-glucaric acid is provided. The process includes: adding a mineral acid to a pre-cooled solution including a salt of D-glucaric acid, water, and acetone to obtain a crude mixture; allowing the crude mixture to rise to a temperature in a range of ≥15° C. to ≤35° C. and stirring the crude mixture; filtrating the crude mixture and washing with an acetone and water solvent mixture to obtain a filtrate; concentrating the filtrate under vacuum pressure to obtain a concentrated filtrate having a water content in a range of ≥20.0 wt. % to ≤40.0 wt. %, relative to an overall weight of the concentrated filtrate; storing the concentrated filtrate at a temperature in a range of ≥0° C. to ≤5° C., and optionally repeating the concentrating and storing steps to obtain a precipitate comprising D-glucaro-6,3-lactone. |
| priorityDate | 2017-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 94.