Aspen Bibliography

Production of High-Yield Pulps from Aspen by Mild Treatments with Sodium Hydroxide

Document Type

Report

Volume

Production of high-yield pulps from Aspen by mild treatments with sodium hydroxide

Issue

No. 1774

First Page

364

Last Page

368

Publication Date

1956

Abstract

In experiments at the U. S. Forest Products Laboratory, aspen (Populus tremuloides) chips were given mild treatments with sodium hydroxide solutions at atmospheric pressure and then mechanically fiberized to produce pulps in the yield range . of 82 to 95 percent. Treatments were made with caustic solutions in concentrations of 24 and 63 grams per liter. Treating time varied from 15 minutes to 5 hours and temperature from 25° to 90° C.

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