http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108610240-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-70 |
| filingDate | 2016-12-09^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108610240-B |
| titleOfInvention | Method for removing polyhydric fusel in ethylene glycol by using solid protonic acid |
| abstract | The invention discloses a method for removing polyhydric alcohols in ethylene glycol by using a salt or alkali modified solid protonic acid catalyst. The salt or alkali solution can remove strong acid sites on the surface of the solid protonic acid, thereby realizing the modification of the solid protonic acid. The modified solid protonic acid is used for processing glycol raw materials containing dihydric or polyhydric fusel alcohol (such as 1, 2-propylene glycol and 1, 2-butanediol), can dehydrate the fusel alcohol with high selectivity to generate aldehydes, ketones, acetals and ketals, and is separated by distillation; further separating the reaction liquid to obtain the high-purity ethylene glycol. The modification method can inhibit the common coking phenomenon when the protonic acid is used, prolong the service life of the catalyst, inhibit the polymerization reaction of the ethylene glycol and improve the yield of the ethylene glycol product; thereby improving the stability and selectivity of the solid protonic acid. The invention is a green environment-friendly process for converting a glycol crude product which is difficult to separate into high-purity glycol and other chemical products. |
| priorityDate | 2016-12-09^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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