http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03145453-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5e121a9cdf8ce8151e7af0d3b5faee7f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-16 |
| filingDate | 1990-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e993c5d65252a56a9c1260def90ec3ca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e18d0aab1288dcc7d3475dcd1c1b5f4 |
| publicationDate | 1991-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H03145453-A |
| titleOfInvention | Preparation of alkanesulfonic acid by oxidation of alkanethiol and dialkyldisulfide |
| abstract | PURPOSE: To effectively obtain alkane sulfonic acid by oxidizing alkanethiol and/or dialkyldisulfide in the presence of the water, and a catalyst amount of lower dialkylsulfoxide and hydrogen halide, with an oxygen-containing gas. n CONSTITUTION: (a) C 1-18 alkanethiol and/or (b) C 2-24 dialkyldisulfide, and (c) an oxygen-containing gas (for example, the air, or a mixture of oxygen and the air or an inert gas), are brought into contact with each other in the presence of (d) a large excess of the water (ordinary more than 4 mol per 1 mol of (a), and more than 6 mol per 1 mol of (b), (e) a catalyst amount of lower dialkylsulfoxide, and (f) a catalyst amount of hydrogen halide, preferably hydrogen bromide and/or hydrogen iodide, preferably at 90-150°C, to effectively prepare alkali sulfonic acid, without consuming the expensive (e) in excess, and without producing a by-product, particularly a large mount of dialkylsulfide which induces the environmental problems for its strong smell. n COPYRIGHT: (C)1991,JPO |
| priorityDate | 1989-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.