http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107879320-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B21-40 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-40 |
| filingDate | 2017-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107879320-B |
| titleOfInvention | Circulating concentration device for treating dilute nitric acid generated by nitrotoluene waste sulfuric acid |
| abstract | The invention discloses a circulating concentration device for treating low-concentration dilute nitric acid by nitrotoluene waste sulfuric acid, which comprises a cooler, an automatic separator, a manual separator, a hand turning tank, a nitrogen oxide compressor unit and a nitrogen oxide absorption tower, wherein the cooler is arranged on the upper part of the cooler; the cooler, the automatic separator, the manual separator, the rotating hand tank and the nitrogen oxide compressor unit are sequentially connected through liquid pipelines, an outlet pipeline of the nitrogen oxide compressor unit is divided into two paths, one path is led to the nitrogen oxide absorption tower through a gas pipeline, the other path is continuously divided into two paths connected in parallel through the liquid pipelines, one path is led to the automatic separator, and the other path is provided with a finished product discharge pipe. The method is suitable for separating nitrotoluene and improving the concentration of low-concentration dilute nitric acid in the waste sulfuric acid treatment, improves the use value of low-value dilute nitric acid, better solves the production balance problem of dilute nitric acid, and improves the economy of a waste sulfuric acid treatment device. |
| priorityDate | 2017-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.