http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018114425-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-54 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-141 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 |
| filingDate | 2017-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e709c3568bb5dea8ee0da7b39e64bc93 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ad8e43ac2e9889b3d4b8dae61214990 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c680d600c62e8fa9b7f165dc97b7c05 |
| publicationDate | 2018-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2018114425-A1 |
| titleOfInvention | Method for obtaining pure tert-butyl (meth)acrylate from raw tert-butyl (meth)acrylate by distillation |
| abstract | The invention relates to a method for obtaining pure tert-butyl (methy)acrylate from raw tert-butyl (methy)acrylate by distillation, characterized in that the method is carried out in a dividing wall column (1) having dividing built-in components and an evaporator (7), in which dividing wall column a dividing wall (8) is arranged in the column longitudinal direction in such a way that an upper common column region (9), a lower common column region (14), a feed part (10, 12) having a side feed point (2) and a removal part (11, 13) having a side removal point (3) are formed, the column has a number of theoretical separating stages in the range of 20 to 80, wherein the number of theoretical separating stages of the dividing wall column (1) refers to the sum of the theoretical separating stages in the common upper column region (9), the common lower column region (14) and the feed part (10, 12), the side feed point (2) for the raw tert-butyl (meth)acrylate is arranged at a theoretical separating stage in the region beginning at least two theoretical separating stages above the bottommost theoretical separating stage and ending at least two theoretical separating stages below the topmost theoretical separating stage, the side removal point (3) for the pure tert-butyl (meth)acrylate is arranged at a theoretical separating stage in the region beginning at least two theoretical separating stages above the bottommost theoretical separating stage and ending at least two theoretical separating stages below the topmost theoretical separating stage, and the dividing wall (8) is arranged in the column in the region beginning at least one theoretical separating stage above the bottommost theoretical separating stage and ending at least one theoretical separating stage below the topmost theoretical separating stage, wherein the liquid amount ratio at the upper end of the dividing wall (8) to the enriching section (10) and to the stripping section (11) of the column is set in a range of 1:0.2 to 1:5. |
| priorityDate | 2016-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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