http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109422705-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_008c9107ff464e201e724ad32b7630cc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D295-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D295-023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D295-027 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D295-027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D295-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D295-023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-08 |
| filingDate | 2017-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80cfba127505a7069c314bb3ad2ef037 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f01058232c7277786f7eacd8ab26f28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19edb1f17132bc9b4e4178bfdab388b9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7573673d1559737095e75e7b7798094b |
| publicationDate | 2019-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109422705-A |
| titleOfInvention | Method for catalyzing synthesis of piperazine and triethylenediamine from ethylenediamine under solvent-free conditions |
| abstract | The invention provides a method for catalyzing and synthesizing piperazine and triethylenediamine from ethylenediamine under solvent-free conditions. In this case, separate pure ethylenediamine is fed into the reactor and catalytically converted under certain conditions to obtain the desired product. The method of the invention not only obtains piperazine and triethylenediamine in high yield, but also has a concise separation process, lower energy consumption and lower production cost, and can also fundamentally solve the problem of azeotrope and near-boiler in the existing method. Separation challenges and solvent recovery and purification issues. In addition, the method of the present invention increases the production of triethylenediamine by recycling part or all of the product piperazine and by-product N-ethylpiperazine, and while reducing the yield of by-products, piperazine and triethylene are achieved. The flexibility and controllability of the diamine yield further improves the economy and competitiveness of the process route. |
| priorityDate | 2017-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.