Sodium sulfide siam chhuah dan tlangpui pahnih a awm a. Glauber-a salt method hmang hian sodium sulfate leh coal powder te chu 1:0.5 ratio-in an pawlh a, reverberatory furnace-ah 950°C-ah an vawt a, an clumping loh nan stir chhunzawm zel a ni. By-product hydrogen sulfide gas hi alkaline solution hmanga absorb a ngai a, exhaust gas treatment standard zawm loh chuan environment thuneitute pawisa chawitir theih a ni. By-product method hian barium salt siamna atanga bawlhhlawh tui hman a ni a, filtration step panga a ngai a ni. Hei hian sum senso 30% a tihhniam laiin, a thianghlimna erawh 90% chauh a thleng thei.

Sodium sulfide hian raw material quality tha tak tak a thlang a, technology hmasawn hmangin a siamchhuahna chu khauh takin a control a, a thianghlimna sang tak leh bawlhhlawh tlem ber a nei a, order lian tak tak tan pawh supply nghet tak a siam thei a ni. Hetah hian click la, sodium sulfide quality tha leh efficiency sang tak i hmu ang.