http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114478471-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d624bc2c5895f4a47b65f440504578cf |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-12 |
| filingDate | 2022-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f309078371a6aeaa3abf96b9c32a5160 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9bda9086e0dc381cb9e9c2663c0ee55f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eac9356dc46d8c2325515c481be2aba4 |
| publicationDate | 2022-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114478471-A |
| titleOfInvention | A kind of lactide purification system and purification process |
| abstract | The invention discloses a lactide purification system and purification process. The lactide purification system comprises: a continuous crystallization unit, the continuous crystallization unit includes a continuous crystallizer, and a multi-stage crystallization zone, a sweat zone and a melting zone are arranged in the continuous crystallizer zone, the continuous crystallizer is connected with the L mother liquor tank, the L sweat tank and the L-lactide product tank through pipelines; the rectification unit, the rectification unit includes a rectification tower, and the upper part of the rectification tower is provided with a tower top condenser, and the rectification unit A falling film reboiler is arranged at the bottom of the column, and a draw pipe is arranged on the side line of the rectification column; a static crystallizing unit, the static crystallizing unit includes a static crystallizer, and the static crystallizer is connected with the M-mother liquor tank, the M-sweat tank and the M-propane through the pipeline. Lactide product tank connection. The crude lactide purification system provided by the invention has low energy consumption, high product purity and high yield, and recovers the M-lactide by-product, which is suitable for industrial production of polylactic acid. |
| priorityDate | 2022-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.