http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103172089-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D7-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D7-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D7-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D7-126 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-10 |
| filingDate | 2012-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103172089-B |
| titleOfInvention | For the method producing sodium bicarbonate |
| abstract | A kind of method for producing sodium bicarbonate from the stream (A) of containing sodium carbonate, the stream (A) of this containing sodium carbonate comprises sodium carbonate and at least one concentration is C i (A) the impurity being made up of alkali metal water soluble salt, the method includes the steps of: a) mixes to produce stream (C) with at least some of of stream (B) by the stream (A) of containing sodium carbonate；B) use comprises CO 2 Gas (D) come bicarbonated this stream (C), to produce waterborne suspension (E), this waterborne suspension (E) comprises crystal (F), and these crystal (F) comprise sodium bicarbonate crystal；C) separate this waterborne suspension (E), with the crystal (F) on the one hand obtaining comprising sodium bicarbonate crystal, and on the other hand obtain aqueous mother liquor (G)；D) at least some of of aqueous mother liquor (G) is partly taken off bicarbonate, and remove mother solution (G) at least some of in part water, obtain stream (B) and the optional gas (H) with at least one impurity of the alkali metal water soluble salt that concentration is Cf (B)；That e) will flow (B) is recycled to step a) at least partially so that the ratio C of the concentration of at least one impurity of alkali metal water soluble salt f (B)/C i (A) it is at least 1.4, advantageously at least 2, more advantageously at least 4, and be still more advantageously 7；And f) remove the residue (I) of this stream (B) or the residue (J) of this mother solution (G) to be further processed. |
| priorityDate | 2011-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 126.