By sulfate-anthraquinone and soda-anthraquinone processes effects of ratioes of alkali and anthiaquinone to wood chips, cooking temperatures and durations on pulp yields and properties of four Italian poplars were studied. The test results and regression analyses indicate that the optimum process conditions for sulfate-anthraquinone cooking of Italian poplar chips are alkai (as Na2O)17%, anthraquinone 0.05%, ratio of liquor to chips 4:1, the highest temperature 165°C and the reaction duration 90 min., and t...