Answer to Question #233519 in Chemical Engineering for Lokika

Question

What are the different pulping methods that are available in paper industries?

Answer 1

Chemical pulping: is a method that breaks down the chemical structure of lignin and renders it soluble in the cooking liquor hence washing it from the cellulose fibers.

Mechanical pulping: is a method used for separating fibers minus extra chemicals.

Semi-chemical pulping: is a combination of mechanical and chemical pulping methods where there is the treatment of fibers with chemicals before mechanical pulping.