| 摘要 |
A process for increasing the yields in alkaline pulping of lignocellulosic materials, such as by the Kraft process, comprising treatment of the cellulosic materials with cyanide and a water-soluble, alkaline-earth metal salt. The lignocellulosic material is then filtered, washed and digested with an alkali-metal pulping solution having a pH of at least about 7. |
