荻苇浆红液及其分离木素在铸造中应用

APPLICATION OF REEDPULP RED LIQUOR AND THE ISOLATED LIGNIN TO FOUNDRY INDUSTRY

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。

This paper applied pulping spent liquor as binder in foundry industry to explore the new method of making use of pulping spent liquor and reducing the pollution to environment.The application of spent sulfite cooking liquor(red liquor) and the isolated lignin to foundry industry was developed.It was possible to substitute bentonite by isolated ignin and synthetic fat by isolated lignin or red liquor as a binder for foundry core.This paper dealt with dry temperature,time and furnish.