Question

Which of the following indicates continuous process for soaps?

(a) Hydrolysis tower, mixer, blender, vacuum still

(b) Vacuum still, hydrolysis tower, mixer and blender

(c) Hydrolysis tower, blender, mixer, vacuum still

(d) Hydrolysis tower, vacuum still, mixer, blender

I got this question in final exam.

I would like to ask this question from Natural Products in section Natural Products of Chemical Technology

Answer 1

Correct choice is (d) Hydrolysis tower, vacuum still, mixer, blender

For explanation I would say: Raw materials are sent into hydrolysis tower where fat splitting reaction takes place, and then the crude fatty acids are passed through vacuum still and through mixer where addition of NaOH takes place, finally through blender for saponification to take place.