Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_02fc8b0aa7fd88c3eb85c0889572d326 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-48 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-34 |
filingDate |
2015-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3008891dae661844e45150dd529ff23 |
publicationDate |
2017-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-2017152211-A1 |
titleOfInvention |
Integrated process for nitrile manufacture with enhanced liquid-liquid extraction |
abstract |
Phosphorus-containing ligands are recovered from mixtures comprising 3-pentenenitrile (3PN) and adiponitrile (ADN), using liquid-liquid extraction. ADN is produced by hydrocyanation of 3PN. The ADN is hydrogenated to produce a hexa-methyiene diamine (HMD) and at least one byproduct including bis-hexamethylene triamine (BHMT) or 1,2-diaminocyclohexane. At least a portion of the HMD product or byproduct is used to enhance the liquid-liquid extraction to recover phosphorus-containing ligand. |
priorityDate |
2014-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |