http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109485589-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23K20-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23K20-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C319-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23K20-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23K20-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-58 |
| filingDate | 2018-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109485589-B |
| titleOfInvention | Method for preparing zinc methionine chelate from methionine mother liquor containing potassium carbonate or potassium bicarbonate |
| abstract | The invention discloses a method for preparing zinc methionine chelate from methionine mother liquor containing potassium carbonate or potassium bicarbonate, which comprises the following steps: the concentrated methionine crystallization mother liquor improves the total methionine (containing methionine dipeptide) content of the system to 8-15 wt%, and simultaneously promotes potassium bicarbonate to be converted into potassium carbonate; transferring the concentrated mother liquor into bipolar membrane electrodialysis for further acidification and potassium ion recovery, desalting until the molar ratio of methionine to potassium ions in the mother liquor in an acid chamber is 1: 0.8-1.1, adding 0.5 mol of zinc salt with total methionine equivalent, reacting at 70-90 ℃ for 30-90 min, cooling, crystallizing, separating and drying to obtain the zinc methionine chelate. The method has the advantages of simple and practical process, high recovery rate of methionine and potassium ions, and separation of methionine and water-soluble impurities in mother liquor by utilizing the physical property that zinc methionine chelate is difficult to dissolve in water, so that the feed-grade trace element nutrient zinc methionine chelate with higher economic value is obtained. |
| priorityDate | 2018-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.