Patent ID: 9115468
Filing Date: 2015-08-25
Classification: D21B,D21C,D21D

Abstract:
1. A chemical mechanical pulping process comprising: feeding lignocellulosic material into a fiberizer; fiberizing lignocellulosic material to form bundles of fiber; diluting bundles of fiber to form an aggregate of wet fiber bundles; retaining the aggregate of wet fiber bundles for a first predetermined time; adding alkaline peroxide chemical and peroxide stabilizing agents to the aggregate of wet fiber bundles thereby forming an alkaline peroxide treated aggregate of wet fiber bundles; and retaining the alkaline peroxide treated aggregate of wet fiber bundles in a retention tower for a second predetermined time, wherein lignocellulosic material is not chemically impregnated before fiberizing, and wherein no refiner is used between forming of bundles of fiber and retaining the alkaline peroxide treated aggregate of wet fiber bundles in a retention tower for a second predetermined time.