The adhesive used in pelletizing fine coal can be prepared by the acetalation of nitrified and oxidated fine young brown coal with PVA solution and aldehyde in acid condition.

• 本研究将经过硝化氧解的年轻褐煤粉与聚乙烯酸水溶液在酸性条件下和醛类发生缩醛化反应，制取煤粉成型用型煤粘结剂。