http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103570527-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_105f88a3a3d9d52f37c80e3d6c58e1e2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-412 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-09 |
| filingDate | 2013-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_671a0517fa10c89696406a7e2df1a150 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4c00491f83a9923bf485934d23339f6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd2899ff1ef8972a73ed78649fa240cf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa94aad79d09614d3b302020cd399ed7 |
| publicationDate | 2015-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103570527-B |
| titleOfInvention | Preparation method for potassium sorbate |
| abstract | The invention provides a preparation method for potassium sorbate, which comprises the following steps in sequence: (1) glacial acetic acid is used as a raw material, and is subjected to pyrolysis at the temperature of 700-800 DEG C to obtain ketene; (2), beta-methylacrolein and a condensation catalyst are added into a reaction kettle for stirring, ketene gas is led in for reaction for 2 to 4 hours at the temperature of 35-50 DGE C, and then filtering and rectificating are performed so as to obtain 2,4-adipic acid polyester; (3), the obtained 2,4-adipic acid polyester is depolymerized under the catalyzing effect of a composite type solid acid catalyst to obtain a crude product of 2,4-adipic acid polyester, and after the reaction of the obtained crude product of 2,4-adipic acid polyester and sylvite, a potassium sorbate product is obtained through drying. Through the method, the conversion rate of beta-methylacrolein is improved and meanwhile the yield of the product of 2,4-adipic acid polyester is increased, the hydrolysis of the 2,4-adipic acid polyester is enabled to be complete, the depolymerization yield of the 2,4-adipic acid polyester is improved, brine waste can not be produced and clean production is achieved. |
| priorityDate | 2013-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 80.