http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106187799-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-26 |
| filingDate | 2016-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106187799-B |
| titleOfInvention | A method of preparing DL-lysine hydrochloride |
| abstract | The invention belongs to chemical fields, a kind of method for preparing DL-lysine hydrochloride is disclosed, using L lysine HCL as raw material, deionized water as solvent, raw material L lysine HCL is dissolved in deionized water, in closed container, active carbon decoloring, filters pressing is added in racemization 16~20 hours under 140~155 DEG C of temperature, 0.36~0.54MPa of pressure after reaction in reaction solution, filtrate is concentrated into supersaturation, cooling, crystallization dries and DL-lysine hydrochloric acid product salt is made.The direct racemization of the method for the present invention high temperature and pressure prepares DL-lysine hydrochloride, simplifies separating-purifying step, yield is up to 85% or more, and purity is up to 99.5%.Due to not using inflammable and explosive solvent, so that the input cost of workshop and equipment can be greatly reduced without requirement of explosion proof to workshop and equipment；Replacing organic acid as solvent using deionized water also accordingly reduces environmental protection treatment Capability Requirement. |
| priorityDate | 2016-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.