本著作涉及到以煤-油团聚物回收金粒的问题。在使用的几种疏水物料中,证明一种特殊类型的煤更适于形成团聚物。柴油、煤油及植物油被用作粘结剂。在本试验中,使用了三种含金物料:沙及金粒的人工混合物、重选金精矿及重选尾矿。最佳结果是金收回率90%,这和用混汞法所得结果不相上下。试验采用的是简单的团聚物制备的方法,即只用一步法。该方法可视为混汞法的有效技术替换法 The book deals with the problem of recovering gold particles from coal-oil agglomerates. Among the several hydrophobic materials used, it was demonstrated that a particular type of coal is more suitable for forming agglomerates. Diesel, kerosene and vegetable oils are used as binders. In this test, three gold-bearing materials were used: artificial mixtures of sand and gold pellets, re-election of gold concentrates and re-election of tailings. The best result is a gold recovery rate of 90%, which is comparable to the result obtained with the amalgamation method. The test uses a simple method of agglomeration preparation, that is, only one-step method. This method can be regarded as an effective technique replacement method for amalgamation