http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105293523-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_77391b79048878cc28addd18aa328aef |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-50 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C1-02 |
| filingDate | 2015-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57af9d807dbcf99a3ff0e7b6447de078 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3cd1e6cd5b442245680188c31ae9ae9d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e1ec57af9e09d43479da2e4708e387c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0417fe6281d61dd46c5e48c4f3bfd80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3947e45e1006a482841e4ba890bfb9c8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f3eeff5fafcdf54258e4fcae6d277b5 |
| publicationDate | 2016-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105293523-A |
| titleOfInvention | Continuous preparation method for production raw material ammonia water of ketazine process hydrazine hydrate |
| abstract | The present invention belongs to the technical field of ketazine process hydrazine hydrate and aims to provide a continuous preparation method for a production raw material ammonia water of ketazine process hydrazine hydrate. Ammonia water which is stable in concentration is continuously prepared by virtue of liquid ammonia gasification, primary absorption and secondary absorption for being used by a ketazine process hydrazine hydrate production system. The preparation method provided by the present invention uses a densitometer for on-line detection; by combining the liquid ammonia gasification rate and the gasification pressure, the density of ammonia water is automatically controlled at 920-925 kg/m3, and the concentration of ammonia water is 25%, wherein the content of NH4OH content is 340-380 g/l, and the ammonia water content is precisely and stably controlled. Cold and heat exchange required by ammonia water preparation is completed by virtue of a principle that liquid ammonia gasification is endothermic while gas ammonia dissolution is exothermic without heat and cold quantities supplied from outside, so that the energy is saved and the consumption is reduced. By virtue of the secondary absorption, excessive soft water and a small quantity of ammonia are absorbed, so that ammonia is completely absorbed; tail gas emission reaches the standard, diluted ammonia water absorbing ammonia is taken as an absorbent in the primary absorption, and no waste water and liquid waste are produced in the overall production process. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111992172-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111992172-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112299444-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107697931-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107697931-A |
| priorityDate | 2015-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.