http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010516736-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-148 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-146 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D323-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D323-06 |
| filingDate | 2008-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2010-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2010516736-A |
| titleOfInvention | Method for the separation of trioxane from a trioxane / formaldehyde / water mixture using pressure swing rectification |
| abstract | In a method for separating trioxane from a starting stream I consisting of formaldehyde, trioxane and water, a) a starting stream I containing formaldehyde and water as a main component is prepared as a main component, and b) a starting stream I as a main component. A return stream V and a return stream VII containing formaldehyde and water and trioxane as secondary components are fed to the first distillation stage and distilled at a pressure of 0.1-2.5 bar, with formaldehyde as the main component And stream II containing water as a minor component, and stream III containing trioxane as a major component and water and formaldehyde as minor components, and stream X containing water, trioxane and formaldehyde, and c) stream III, Optionally low boiling components from stream III in the low boiling component separation stage After separation, the second distillation stage is distilled at a pressure of 0.2-17.5 bar, the pressure in the second distillation stage being only 0.1-15 bar than the pressure in the first distillation stage. A stream IV essentially consisting of trioxane, and a return stream V containing trioxane as the main component and water and formaldehyde as secondary components, d) stream X and optionally water as the main component. Stream IX is fed to the third distillation stage and distilled at a pressure of 1 to 10 bar, with essentially consisting of stream VI consisting essentially of water, and formaldehyde and water and trioxane as secondary components. A process characterized in that a return stream VII containing is obtained. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014534253-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011511758-A |
| priorityDate | 2007-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.