FIELD: chemistry.
SUBSTANCE: invention relates to a process of preparation of dialkyl sulfides from a "disulphide oil", by the reaction of "disulfide oil" with methanol in the presence of a gamma alumina catalyst, at atmospheric pressure, at a temperature of 350-400°C, the molar ratio of methanol to "disulfide oil" (2.6-3.2):1, the contact time 0.13-0.95 s.
EFFECT: dialkyl sulfides are flotation agents, gas odorants, starting reagents for obtaining various valuable substances.
1 tbl, 12 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND CATALYST FOR THIOPHEN PREPARATION | 2007 |
|
RU2325228C1 |
| DIMETHYLSULPHIDE SYNTHESIS METHOD | 2009 |
|
RU2402529C1 |
| CATALYST, METHOD OF MAKING SAID CATALYST AND METHOD OF OBTAINIING DIMETHYL SULPHIDE | 2008 |
|
RU2368418C1 |
| METHOD OF PRODUCING DIMETHYL SULPHIDE | 2011 |
|
RU2457029C1 |
| METHOD OF OBTAINING METHYLTHIOPHENES | 2018 |
|
RU2673487C1 |
| CATALYTIC CONVERSION OF DISULPHIDE OIL IN PRESENCE OF WATER | 2016 |
|
RU2723117C1 |
| CATALYST, A METHOD FOR PREPARATION THEREOF, AND A THIOPHENE PRODUCTION PROCESS | 2004 |
|
RU2263537C1 |
| METHYLMERCAPTAN SYNTHESIS CATALYST | 1997 |
|
RU2120822C1 |
| METHOD FOR THE PREPARATION OF METHANESULFONIC ACID | 2016 |
|
RU2648245C2 |
| BENZENE METHYLATION METHOD | 2015 |
|
RU2600453C1 |
