http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103304451-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_097dde025c7068093a40e0f69b34076a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B7-01 |
| filingDate | 2013-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd36c5ecc50ad198dc4499caa38a0249 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7d16eb8b1eee30c5390c59195785760f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f60c2f4a84d9cadab5f7837ce8188a5b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_213d4b50ad1d992085cafc59ab4efae0 |
| publicationDate | 2015-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103304451-B |
| titleOfInvention | Preparation method of aromatic hydrocarbon sulfonyl chloride derivative |
| abstract | The invention discloses a preparation method of an aromatic hydrocarbon sulfonyl chloride derivative. The preparation method comprises the following steps of: (1) introducing sulfur trioxide gas into chlorosulfonic acid to prepare a chlorosulfonic acid solution of the sulfur trioxide, slowly adding an aromatic hydrocarbon, heating to 50-140 DEG C, performing heat preservation till the end of reaction, and then cooling to 25-35 DEG C; (2) controlling the temperature to be lower than 40 DEG C, and slowly dripping dilute sulfuric acid into the reaction solution, wherein generated hydrogen chloride gas can be recovered as a byproduct, namely hydrochloric acid after being absorbed by water; and (3) adding a solvent, stirring for 0.5-1h, and then standing for lamination, wherein the lower layer is sulfuric acid and can be recovered as a byproduct, and the upper layer can obtain a product, namely the aromatic hydrocarbon sulfonyl chloride derivative after removal of the solvent by distillation. The preparation method disclosed by the invention has the advantages of steady reaction, high yield, no generation of the hydrogen chloride gas during the reaction process, low energy consumption during the post-treatment process and high utilization value of the recovered sulfuric acid. |
| priorityDate | 2013-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.