http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111620884-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f04e30a60ae408a7e9d832b566b387c1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8ee92593d3fc749b150d614077c226a5 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-08 |
| filingDate | 2020-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2197e1523de92542ae446985fddd2167 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f5ba4ef6226ae2253e0837677c0d021 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a8942bc4683ac23a6d46037a8a7b7851 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c80f93ebaed0c5f7e7d0773beffcc50d |
| publicationDate | 2020-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111620884-A |
| titleOfInvention | A kind of synthetic method of triethylenediamine |
| abstract | The invention relates to a method for synthesizing triethylenediamine, which solves the technical problems of high cost of the existing production process or certain danger of raw materials, unenvironmental protection, complicated synthesis process, low product yield and the like. It comprises the following steps: (1) adding oxalic acid diester into a reaction flask, adding piperazine after dissolving it in a solvent in advance, adding a catalyst, dropping piperazine dissolved in a solvent at a reaction temperature of 30-80° C., and stirring after the dropwise addition. After 1 to 2 hours, filter, and the obtained filter cake is washed with solvent and dried to obtain the intermediate product, dioxytriethylene diamine; (2) adding the dioxytriethylene diamine obtained in step (1) into the autoclave, adding The solvent is completely dissolved, the catalyst is added, the lid of the kettle is tightly sealed, the temperature is raised to 150-200 ° C, and hydrogen is charged into the high-pressure valve until the pressure reaches 2-10 MPa, and hydrogen is continuously charged during the reaction to maintain the pressure to obtain triethylene di Crude amine; (3) post-processing to obtain the final product triethylenediamine. The present invention is applied to the synthesis of triethylenediamine. |
| priorityDate | 2020-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.