Semi-continuous methods fall into two broad catego
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Semi-continuous maethods fall into two broad categories:
(1) Cold batching metods
(2) Hot bathcing methods viz (i) Pad (alkali)-batch (cold) method (ii) The pad (alkalai)- batch (hot) method. Continuous Methods offer high reactivity and solubility, and fall intoseven catogires :-
(1) Pad (bicarbonate)-dry process
(2) Pad (Na2CO3 Urea)-dry bake process
(3) Pad (bicarbonate) dry steam process
(4) Pad (Soda ash)-dry steam process
(5) Pad-dry-pad (alkali)-steam process
(6) Pad (bicarbonate)- steam process
(7) Pad-pad (Alkali) process (molten metal machine)
