FIELD: chemistry.
SUBSTANCE: invention relates to a benzene methylation method. Method is characterized by that methylating agent used is dimethyl sulphide, process is carried out in presence of a catalyst - high-silica zeolite HZSM-5, in gas phase at atmospheric pressure, at a temperature of 250-350 °C, contact time of 1.1-20 s.
EFFECT: production of toluene, xylenes, mesitylene and durene using an alternative methylating agent - dimethyl disulphide.
1 cl, 12 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OBTAINING METHYLTHIOPHENES | 2018 |
|
RU2673487C1 |
| METHOD OF PRODUCING (METHYLTHIO)THIOPHENES | 2015 |
|
RU2594481C1 |
| METHOD OF OBTAINING DIALCILSULFIDES | 2016 |
|
RU2622046C1 |
| METHOD OF PRODUCTION OF PHENOL AND ITS DERIVATIVES AND METHOD OF OXIDATION OF BENZENE AND ITS DERIVATIVES | 1998 |
|
RU2202532C2 |
| METHOD OF OXIDATION OF TOLUENE INTO PHENOL, AND/OR CRESOLS | 1999 |
|
RU2155181C1 |
| METHOD OF CATALYTIC CONVERSION OF HYDROCARBON RAW INVOLVING AT LEAST ONE AROMATIC COMPOUND CONTAINING AT LEAST 9 CARBON ATOMS TO THE PRODUCT CONTAINING C-C-AROMATIC COMPOUNDS | 1991 |
|
RU2011650C1 |
| METHOD OF SYNTHESIS-GAS ALKYLATION OF AROMATIC HYDROCARBONS | 1997 |
|
RU2119470C1 |
| METHOD OF OBTAINING XYLOL VAPOUR | 2004 |
|
RU2331621C2 |
| SYNTHESIS OF ALKYLATED AROMATIC HYDROCARBONS FROM METHANE | 2005 |
|
RU2417974C2 |
| AROMATIC HYDROCARBON CONVERSION PROCESS | 1996 |
|
RU2148573C1 |
