Non-woody magnesium lignosulfonate(ML) is produced as a by-product in the sulphite non-wood pulping, which is a very abundant and innoxious biomass resource.

非木本木质素磺酸镁（ML）来源于造纸厂非木本原料亚硫酸盐制浆废液，属于来源丰富、无毒的可再生生物质资源。

youdao

Compared with sulphate pulping process, neutral ammonium sulphite process had the advantages of higher yield and whiteness of unbleached pulp.

与硫酸盐制浆相比，中性亚铵法制浆工艺具有得率高和浆料颜色浅等特点。

youdao