| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0018
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0492
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0004 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-38 |
| filingDate |
2018-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-110869344-B |
| titleOfInvention |
A process for separating long-chain amino acids and dibasic acids |
| abstract |
The invention discloses a separation process of long-chain amino acids and long-chain dibasic acids, as follows: (1) adding water and extractant to the acid hydrolysis suspension of mixed amide derivatives to obtain an aqueous phase and an extractant phase; (2) ) separating the mixture in step (1) into an aqueous phase containing long-chain amino acid salts and alkylamine salts and an extractant phase containing long-chain dibasic acids, short-chain alkyl acids and impurities; (3) using alkaline The reagent neutralizes the water phase of step (2) to obtain a crystal suspension of long-chain amino acids; (4) reclaims the long-chain amino acids by solid-liquid separation and obtains an aqueous solution of mother liquor; (5) separates the long-chain amino acids from the extractant phase of step (2) chain dibasic acids, short chain alkyl acids and impurities. |
| priorityDate |
2017-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |