1,4-Dichlorobenzene → HCID 17864968, compound

Participants

Reaction Conditions

Reaction Steps

Sodium sulfide 9 hydrobase 6.005 kg (25 mol), sodium acetate 0.69 kg (98.25 mol) and NMP 4.1 kg are thrown in an autoclave with agitator, heated gradually to 205° C. introducing nitrogen, and water of 3.6 litter is distillated. Next, the reaction vessel is cooled to 180° C., p-dichlorobenzen 3.582 kg (24.4 mol), m-dichlorobenzen 0.188 kg (1.28 mol) and NMP 3.2 kg are added, sealed under nitrogen, heated to 270° C., and thereafter, let react at 270° C. for 2.5 hours. Next, the above is thrown in NMP 10 kg that is heated to 100° C., agitated continuously for about one hour and filtered, and washed three times for 30 minutes with hot water of 80° C. This is filtered, dried for 24 hours at 80° under reduced pressure, to obtain PPS-4 of 5 mol % in m-phenylene sulfide unit to the total of m-phenylene sulfide and p-phenylene sulfide, 180° in crystallization temperature during cooling, 0.5 weight % in chloroform-extractable content and 160 g/10 minutes in MFR.

Provenance & Evidence