University of Minnesota

Agricultural Utilization Research Institute

Other

Lin Gu

Ling Tony Chen

Rongsheng Roger Ruan

Brock M Lundberg

Paul Bradley Addis

Jack Edgar Johnson

The present invention comprises an improved method for refining cellulose that produces a highly refined cellulosic material. The method comprises soaking raw material in a mild NaOH using reduced temperatures and pressures, and refining the material with a plate refiner so that a waste water stream is reduced in volume and has a pH within a range of 8 to 9. The present invention also comprises a HRC gel having a lignin concentration of at least about one (1)% by weight, and a water retention capacity of about 25 to at least about 56 g HO/g dry HRC.

Cellulose fiber-based filters

Cellulose fiber-based compositions and their method of manufacture

An improved method for refining cellulose that produces a highly refined cellulosic material comprising soaking raw material in a mild NaOH using reduced temperatures and pressures, and refining the material with a plate refiner so that a waste water stream is reduced in volume and has a pH within a range of 8 to 9. Also, a HRC gel having a lignin concentration of at least about one (1)% by weight, and a water retention capacity of about 25 to at least about 56 g H O/g dry HRC is provided.

Growing community of inventors

Seattle, WA, United States of America

Lin Gu