http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104386714-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D5-14 |
| filingDate | 2014-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104386714-B |
| titleOfInvention | The method of preparation food-grade sodium pyrosulfite |
| abstract | The present invention discloses a kind of method preparing food-grade sodium pyrosulfite, including: (a) by technical grade sodium pyrosulfite with pure water to mix, stirring intensification sodium pyrosulfite is fully dissolved；B the algal polysaccharides aqueous solution is added among above-mentioned sodium metabisulfite solution by (), the algal polysaccharides aqueous solution is 80%～100% with the volume ratio of above-mentioned sodium metabisulfite solution, stirring at normal temperature, filters；C () adds activated carbon among filtrate, stand 30～50min 70～100 DEG C of insulations；D above-mentioned solution is filtered by (), and concentrate at vacuum 0.06 to 0.09MPa, temperature 80～95 DEG C；E () adds cold water and cools down, filtering for crystallizing drains moisture, is dried, obtains food-grade sodium pyrosulfite.The preparation technology of the present invention is simple, required with low cost, and the product quality level obtained is high. |
| priorityDate | 2014-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.