http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101921217-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_50c5d7623c912de7a902d13daa58faa6 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-52 |
| filingDate | 2010-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fed06abcef70da20bf2c34debeabd313 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac89587ce16601fbf50b75216dc0fe50 |
| publicationDate | 2013-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101921217-B |
| titleOfInvention | Method for synthesizing thioglycolic acid |
| abstract | The invention provides a novel method for synthesizing thioglycolic acid. The method comprises the following steps of: preparing sodium disulfide solution from sodium sulfide and sulphur serving as raw materials; reacting the sodium disulfide with sodium chloroacetate to synthesize 2,2'- sodium dithio-diacetate; and reducing by using sodium hydrosulfide and sodium sulfite solution; and performing acidification, extraction and distillation to obtain the thioglycolic acid. The method has the advantages of simple process, mild reaction conditions and the synthesis conversion rate of over 90 percent; as zinc powder is not used as a reducing agent, the method is environment-friendly and the cost is reduced; meanwhile, the method is an effective method for comprehensively utilizing waste sulfur. |
| priorityDate | 2010-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.