http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101696144-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_31a67cb7d51df79336fa8b1dea7ab079 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D243-08 |
| filingDate | 2009-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd6d7814a9cb0c60cd8fc4484a0a6b71 |
| publicationDate | 2014-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101696144-B |
| titleOfInvention | Method for preparing amine from ammonium salts |
| abstract | The invention relates to a method for preparing amine from ammonium salts. The method comprises the following steps: adding ammonium salts and solvent in a reaction kettle provided with a stirrer and a reflux condensing tube, wherein 2 to 5L solvent is added corresponding to each mol of ammonium salts, and adding 1.5 to 3 equivalent weights of strong alkali; controlling the temperature of the mixture between 30 DEG C below zero and 0 DEG C, wherein the ammonium salts is selected from salts formed by amine with extremely strong water solubility and inorganic acids or organic acids; adding water once to initiate reaction, wherein 0 to 20mL water is added corresponding to each equivalent weight of ammonium salts, controlling the reaction temperature not more than the boiling point of the solvent and stirring continuously till the turbid mixture is clear; separating liquid through filtration and then adding the solvent to wash the solid, wherein 1 to 3L solvent is added corresponding to each mol of ammonium salts; and mixing the filtrate and the wash solution to obtain the product after steaming the solvent. The method has the advantages of short reaction time, high yield, easy product separation and purification, capacity of realizing continuous production, and the like; and the method is free from the restriction on product water solubility and can be used in industrial production. |
| priorityDate | 2009-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 98.