http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102153113-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_35a766fb4b7ef58c2d9b8420b300d235 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D3-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-00 |
| filingDate | 2011-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3fc681a5dbe8593b56ac8e590e55113f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ec010c7bbed132717643a2f24507327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97e349f616bfc2a7a3b16e0e24aea5ba |
| publicationDate | 2014-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102153113-B |
| titleOfInvention | Process for producing mirabilite type bittern, sodium carbonate, sodium chloride, sodium sulfate and ammonium chloride |
| abstract | The invention provides a process for producing mirabilite type bittern, sodium carbonate, sodium chloride, sodium sulfate and ammonium chloride. The process comprises the following steps of: performing double decomposition reaction by using mirabilite type bittern, ammonia and carbon dioxide as raw materials, and then separating the reaction products to obtain sodium bicarbonate and sodium bicarbonate mother solution; performing preheating and high-temperature ammonia removal on the sodium bicarbonate mother solution to obtain ammonia removed mother solution; separating the ammonia removed mother solution through a nano-filtration membrane to obtain denitration seeped clear solution and mirabilite rich concentrated solution; performing high-temperature evaporation and separation on the mirabilite rich concentrated solution to obtain solid sodium sulfate and mirabilite preparation mother solution, and circularly mixing the mirabilite preparation mother solution and the ammonia removed mother solution to perform the nano-filtration membrane separation process; performing high-temperature evaporation and separation on the denitration seeped clear solution and the circular ammonium preparation mother solution to obtain solid sodium chloride and salt preparation mother solution; performing low-temperature evaporation and separation on the salt preparation mother solution to obtain solid ammonium chloride and ammonium preparation mother solution; and mixing the ammonium preparation mother solution and the denitration seeped clear solution, and performing circular evaporation and separation to obtain solid sodium chloride and salt preparation mother solution. The process has the characteristics of high main product and byproduct quality, low steam energy consumption and production cost, no three-waste discharge in closed cycle and the like. |
| priorityDate | 2011-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.