http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111689851-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 |
| filingDate | 2020-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111689851-B |
| titleOfInvention | Method for preparing acetate and calcium chloride from glucosamine waste acid solution |
| abstract | The invention discloses a method for preparing acetate and calcium chloride from glucosamine waste acid solution, which comprises the following steps: distilling the glucosamine waste acid solution to obtain distillate and raffinate, so as to realize the separation of the waste acid solution and high-boiling-point substances; carrying out non-catalytic esterification reaction on the distillate and fatty alcohol to obtain acetic ester, and recovering concentrated hydrochloric acid through reaction rectification; and (3) sequentially carrying out calcium oxide neutralization treatment and catalytic cracking reaction on the raffinate to obtain a calcium chloride product with the TOC content lower than 10 mg/kg. The invention not only realizes the resource recycling of the hydrochloric acid, the recovery rate of the hydrochloric acid reaches more than 99 percent, but also enables the waste acetic acid to be utilized with high value, produces acetic ester products, and the recovery rate of the acetic acid reaches more than 83 percent, changes the waste acid liquid of the glucosamine hydrochloride into valuable, and improves the economic benefit and market competitiveness of enterprises. |
| priorityDate | 2020-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.