FIELD: chemistry.
SUBSTANCE: invention relates to methods of producing sulphur-containing compounds, specifically dimethyl sulphide which is used as an odorant and starting material for synthesis of dimethyl sulphoxide which is used as a medicinal agent, solvent and extractant. Described is a method of producing dimethyl sulphide by converting dimethyl disulphide in the presence of methanol at atmospheric pressure and temperature 300-380°C using a catalyst containing gamma-aluminium oxide and 0.73-7.3 wt % chromium oxide. The weight ratio of methanol to dimethyl disulphide is equal to 0.8-0.9 g/g and contact time is 0.1-0.35 s.
EFFECT: high efficiency of the process of producing dimethyl sulphide.
12 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYST, METHOD OF MAKING SAID CATALYST AND METHOD OF OBTAINIING DIMETHYL SULPHIDE | 2008 |
|
RU2368418C1 |
| CATALYST, METHOD OF PREPARATION THEREOF, AND METHYLMERCAPTAN PRODUCTION PROCESS | 2003 |
|
RU2243819C1 |
| CATALYST, METHOD FOR PREPARATION THEREOF, AND A METHOD FOR DEHYDRATION OF HYDROCARBONS USING THIS CATALYST | 2004 |
|
RU2256499C1 |
| DIMETHYLSULPHIDE SYNTHESIS METHOD | 2009 |
|
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| METHOD OF OBTAINING DIALCILSULFIDES | 2016 |
|
RU2622046C1 |
| CATALYTIC AGENT AND METHOD OF PRODUCTION OF DIMETHYL ETHER AND METHANOL FROM SYNTHETIC GAS | 2002 |
|
RU2218988C2 |
| CATALYST, A METHOD FOR PREPARATION THEREOF, AND A THIOPHENE PRODUCTION PROCESS | 2004 |
|
RU2263537C1 |
| HYDROCARBON DEHYDROGENATION CATALYST AND METHOD OF PREPARATION THEREOF | 2001 |
|
RU2200143C1 |
| METHOD FOR PRODUCING CAST OXIDE MATERIAL | 2003 |
|
RU2231418C1 |
| METHOD FOR PREPARING ANILINE AND CATALYST FOR PREPARING ANILINE AND OTHER AMINES | 2001 |
|
RU2217415C2 |
