http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106220491-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-363 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-363 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-16 |
| filingDate | 2016-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106220491-B |
| titleOfInvention | Production of chloroacetic acid method |
| abstract | A kind of production of chloroacetic acid method, includes the following steps: S1: the raw acetic acid centainly matched and acetic anhydride being passed through absorption tower, realize mass-and heat-transfer with the gas from the second chlorination reaction tower；S2: unabsorbed gases is successively condensed in middle condenser system, and collection can congeal into point and be sent into the first chlorination reaction tower；S3: it is passed through chlorine to the first chlorination reaction tower, reacts it with the liquid from step S1, S2, synthesis of chloroacetic acid；S4: the reaction solution that the first chlorination reaction tower reactor is collected is sent into the second chlorination reaction tower top end；The gas of S5: the first chlorination reaction tower top discharge is fractionated tower separation, makes liquid reflux to the first chlorination reaction tower, and gas send the second chlorination reaction tower bottom end；S6: chlorine is passed through in the middle part of to the second chlorination reaction tower.Production of chloroacetic acid method provided by the invention is able to achieve production serialization, and can improve raw material availability, meanwhile, it effectively prevents excessive chlorine and side reaction occurs for product monoxone, improve product yield, reduce energy consumption. |
| priorityDate | 2016-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.