Effect of Different Process on the Pulping Properties of Salix Psammophila P-RC APMP

Abstract

we studied on the pulping properties of Salix Psammophila in different P-RC APMP pulping process at the same Chemicals dosage. Form the results we can see, compare with the One-stage P-RC APMP, the brightness, breaking length and bursting index of the Two-stage Salix Psammophila P-RC APMP were respectively improved by 8.34%ISO, 45.50% and 24.83%; the surface of fibre of the Salix Psammophila Two-stage P-RC APMP were more roughly and broken; the degree of the crystallinity of the cellulose of the two-stage P-RC APMP is improved by 3.57%; the content of the lignin of Two-stage Salix Psammophila P-RC APMP was reduced 7.01%.