Engineering Commons^™

A Study Of "Black Liquor" From Soda Pulp, Chen Chi Pan

Electronic Theses and Dissertations

At the present time, practically all of the soft easy bleaching pulps used for the manufacture of high class book, magazine, general printing and cheaper writing paper are made by the Soda Process. Although the sulphite and mechanical process and to a less extent the Sulphate Process predominate, the Soda Pulp is remarkably well adopted for producing Pulp Fibres from any kind of wood or other fibrous material, no matter how resistant to chemical attack it may be.

Up to 1876, black liquor was run to waste. But since the River Pollution Act, it is treated to recover the soda, …