http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105198778-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C307-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-34 |
| filingDate | 2015-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105198778-B |
| titleOfInvention | A kind of acesulfame potassium synthesizing section acylation reaction technique |
| abstract | The present invention discloses a kind of acesulfame potassium synthesizing section acylation reaction technique, comprises the steps of：A) open the mixer of acylation kettle and flow through the cooling circulating water of plate type heat exchanger；B) the synthetic reaction gains of sulfamic acid and triethylamine are put into acylation kettle；C) it is 1 by volume ratio:1 dichloromethane is well mixed with ketene dimer, and by dosage to the mixture that dichloromethane and ketene dimer are added dropwise in acylation kettle, dropwise addition flow is 500L/H；D) dichloromethane after vaporizing after plate type heat exchanger in returning to the container for holding dichloromethane；The mixture of dichloromethane and ketene dimer is added drop-wise in acylation kettle, the temperature of acylation reaction is improved, shortens the reaction time, improve production efficiency；Meanwhile, acylation reaction vaporizes dichloromethane, and the dichloromethane after vaporization is liquefied by after cooling circulating water cooling, and the dichloromethane after liquefaction is recycled in returning to the container for hold dichloromethane, simplifies technique, reduces energy consumption. |
| priorityDate | 2015-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.