FIELD: chemistry.
SUBSTANCE: proposed method of producing chloromethanes involves gas-phase thermal chlorination of methane, condensation of obtained chloromethanes, removal of methyl chloride from the condensate, obtaining a mixture of chloromethanes, distillation of this mixture with separation of the light fraction, liquid-phase chlorination of the light fraction with photochemical initiation, combination of vat fractions with products of liquid-phase chlorination, and separation of individual chloromethanes using known methods.
EFFECT: reduced formation of tetrachloromethane and increased selectivity on chloroform.
2 cl, 1 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCTION OF THE CHLOROFORM | 2006 |
|
RU2316534C1 |
| METHOD OF PRODUCING CHLOROFORM | 2009 |
|
RU2410369C1 |
| METHOD OF SYNTHESIS OF CHLOROFORM | 1999 |
|
RU2165917C1 |
| PROCESS FOR PREPARING METHANIC CHLOROHYDROCARBONS | 1996 |
|
RU2127245C1 |
| METHOD OF PREPARING CHLOROMETHANES | 1996 |
|
RU2155742C2 |
| COMPOUND METHOD FOR CATALYTIC PROCESSING OF NATURAL GAS TO OBTAIN LOWER OLEFINS | 2011 |
|
RU2451005C1 |
| REACTOR FOR NATURAL GAS CHLORINATION | 2009 |
|
RU2396111C1 |
| PROCESS FOR PREPARING CHLOROMETHANES | 0 |
|
SU1049464A1 |
| METHOD OF PURIFYING CHLOROFORM | 2009 |
|
RU2417211C2 |
| METHOD OF NEUTRALISING AND DRYING REACTION GASES FROM CHLOROMETHANE PRODUCTION | 2014 |
|
RU2559882C1 |
