探索与使用制浆废液作为铸造业的粘合剂，以图开辟利用制浆废液，减轻其对环境污染的新途径。选用了酸性亚硫酸盐荻苇浆蒸煮废液的浓缩液（红液）和从中分离出的木素作为粘合剂，代替膨润土和合脂油，测定所得芯砂的性能指标。实验表明，分离木素代替膨润土、以分离木素和红液代替合脂油，作为芯砂的粘合剂，可以达到指标要求。还探索了适宜的烘干温度、时间和配比条件。 Explore and use of pulping waste as a binder in the foundry industry in order to explore the use of pulping waste, to reduce its new way of environmental pollution. The concentrate (red liquor) of acidic sulfite reed pulp cooking waste liquor and the lignin isolated from it were used as binder instead of bentonite and synthetic fat oil to measure the performance index of the obtained core sand. Experiments show that the separation of lignin instead of bentonite to separate lignin and red liquid instead of fat, as the core sand binder, can meet the target requirements. Also explored the appropriate drying temperature, time and matching conditions.