http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104803847-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 |
| filingDate | 2015-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104803847-B |
| titleOfInvention | A kind of technique of composite solid acid catalysis synthesizing acetyl tributyl citrate |
| abstract | A kind of technique of composite solid acid catalysis synthesizing acetyl tributyl citrate, comprise the following steps: the preparation of a. tributyl citrate: add anhydrous citric acid and n-butyl alcohol in the reactor, and add catalyst and react 3 ~ 6 hours at 120 DEG C ~ 160 DEG C, synthesize TBC, dealcoholysis；B. adding acetic anhydride in tributyl 2-acetylcitrate preparation TBC after dealcoholysis, react 1 ~ 2 hour at 60 DEG C ~ 100 DEG C, reactant liquor cooled and filtered goes out catalyst, and filtrate adds water, and hydrolyzes acetic anhydride, deacidification recovery of acetic acid, post-treated prepared ATBC finished product；Described catalyst is composite solid acid, and composite solid acid preparation process includes: weigh chemically pure reagent SnO 2 —SiO 2 —Al 2 O 3 Mix homogeneously is in Muffle kiln roasting, temperature 600 DEG C ~ 650 DEG C, and 2 ~ 3 hours time, wherein reagent content ratio is: SiO 2 : SnO 2 For 1:1 ~ 2, (SiO 2 —SnO 2 ): Al 2 O 3 For 1:2.5 ~ 4.Overcome the complex process existing for the preparation method of existing tributyl 2-acetylcitrate, production cycle length, product loss is big, " three wastes " are many, pollute the shortcomings such as environment, recovery simple, easily separated prepared by catalyst, it is not necessary to processes and is used repeatedly with regard to capable of circulation. |
| priorityDate | 2015-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.