http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102826553-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e204484477312abe8dfb119a1d83050a http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f655a96833ad01cfec0c5e43890e3491 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-107 |
| filingDate | 2012-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab9efd52b0a016a3cd1fc481a3634fc0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73708597eda550ad90276ff6a6dc321f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4081a6f6822d3cfa4b805f770c37c151 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b250c761b44bb578e2e6eb6446d0120f |
| publicationDate | 2014-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102826553-B |
| titleOfInvention | Separation method of chlorosilane mixture |
| abstract | The invention provides a separation method of a chlorosilane mixture, and mainly solves the problems of long flow, great investment, high energy consumption, and the like of a chlorosilane rectification separation process in current polysilicon production. The method of the invention mainly comprises the following steps: adding raw materials of a chlorosilane mixture of dichlorosilane, silicon tetrachloride, and trichlorosilane into a material charging side of a dividing-wall section of a dividing-wall rectifying column, performing separation to obtain trichlorosilane from an extraction side of the dividing-wall section, to obtain dichlorosilane from the column top, and to obtain silicon tetrachloride from the column bottom. The separation method of the chlorosilane mixture of the invention applies the dividing-wall rectification technology to chlorosilane rectification so as to realize complete thermal coupling in the column, saves energy consumption by about 30% when compared with a routine chlorosilane rectification flow, shortens the flow, reduces equipment investment, and saves land occupation. |
| priorityDate | 2012-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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