http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101811965-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ac31afbea1cbbb03498644721ffb4a62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-12 |
| filingDate | 2010-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95c1b16e66be957fd45ac7cbc9ddb933 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b604587ef1cfc2f22a5f27082eae3444 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d95a2a1b69f316ba2e273e281d38a758 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfa430a2aa0466d531c9a8ea0d88f945 |
| publicationDate | 2013-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101811965-B |
| titleOfInvention | Process for separating and recovering butyl acetate and butyl alcohol in wastewater by using azeotropic rectification |
| abstract | The invention relates to a process for separating and recovering butyl acetate and butyl alcohol in wastewater by using azeotropic rectification, comprising the following steps of: carrying out normal-pressure distillation and thickening on the wastewater containing the butyl alcohol, the butyl acetate, water and organic residues in a first rectifying tower T-01 to obtain pure water and the organic residues through a tower kettle; delaminating condensed steam at a tower top, flowing a water layer back, and causing an organic layer to enter a second rectifying tower T-02 for pressurization and rectification under 120-200 Kpa so that the high-purity butyl acetate is extracted by the tower kettle and the steam with the alcohol ester ratio of 3/1-9/1 is obtained at the tower top; condensing to cause one part of a condensate to back flow and one part of the condensate to enter a third rectifying tower T-03 for pressure reduction and rectification under 3-15 KPa so that the high-purity butyl alcohol is extracted by the tower kettle and the steam with the alcohol ester ratio of 1/3-1/2 is obtained at the tower top; and after condensing and cooling, causing the steam with the alcohol ester ratio of 1/3-1/2 to enter the tower from a feed inlet of the second rectifying tower T-02 for continuous thickening and purification. The process has the advantages of environmental protection, low energy consumption, investment saving, no entrainer addition, high recovery rate (above 99%) of solvents and the like. |
| priorityDate | 2010-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.