http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111437617-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D1-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D1-14 |
| filingDate | 2020-06-09^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-03^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-03^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111437617-B |
| titleOfInvention | Method and equipment for evaporating and concentrating cyclohexane oxidation waste alkali liquor |
| abstract | An evaporation and concentration method and equipment for cyclohexane oxidation waste lye. The method comprises the steps of firstly, directly contacting cyclohexane oxidation waste alkali liquor with water vapor to carry out continuous steam stripping to obtain gas phase and stripped waste alkali liquor; then condensing the gas phase to obtain mixed condensate containing effective components, combining stripped waste alkali liquor and circulating hot alkali liquor to obtain tower bottom liquor, and generating steam for stripping; finally, discharging a part of tower bottom liquid as concentrated liquid, entering a secondary concentration process, and heating the other part of tower bottom liquid to obtain the circulating hot alkali liquid; the method can effectively separate and recover effective products such as cyclohexane, cyclohexanone, cyclohexanol and the like in the cyclohexane oxidation waste alkali liquor, simultaneously avoid the scaling of inorganic salt in equipment, and improve the safety of long-term operation of the equipment. The evaporation concentration equipment has simple and reasonable structure. |
| priorityDate | 2020-06-09^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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