http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103102333-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_25ce162a1c1e7e15368bee2861594b40 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D305-12 |
| filingDate | 2013-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f5e968352a518a11b4e3e2cf166cc25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f0787e6e4fbde46861bb95a8a9b50fe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89d42df29b82c7274895ee1c492df6aa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77a544ec6d1b4eae2be2b49b69e65883 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e49d7438a840d2d128469a8daf2e0e85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_131191bea42a4129db3a8b7206a280e6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf2368c06183ba91d071b4aee56edabd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_735a761b62aa9cbe23784b7e94b28215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11be78bf717ebc7d82b51f4808c4a395 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_519deb0592d7d61dd310d0a2352b0296 |
| publicationDate | 2015-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103102333-B |
| titleOfInvention | Production method for alkyl ketene dimer |
| abstract | The invention relates to a production method of an alkyl ketene dimer. The production method is characterized in that tertiary amine reacts with acyl chloride according to a molar ratio of (1:1.6)-(1:5.0) at 30-65 DEG C and under a negative pressure, generated reaction heat is taken away by vaporization of amine, amine steam returns to a reaction kettle after being condensed and liquefied by a condenser at the top of the reaction kettle and is circulated, reaction materials enter an amine evaporation kettle after a condensation reaction is finished, and superfluous tertiary amine is distilled and recovered through the amine evaporation kettle. According to the production method of the alkyl ketene dimer, a solvent does not need to be added, the reaction is carried out at the higher molar ratio and the lower temperature, and the problems that the viscosity of a reaction system is high, the stirring is difficult, diketone side products in reaction products at the high temperature are more and the like are solved; and an alkyl ketene dimer product produced by the production method is high in purity, low in cost and little in output of effluent brine, and the produced alkyl ketene dimer product can be used as sizing agents prepared from foods or other high-performance paper products. |
| priorityDate | 2013-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.