The effect of stirring and attrition-scrubbing conditioning pretreatment on organic content enrichment was investigated. A relatively coarse particle size (−0.5 + 0.1 mm) was used to avoid high comminution cost, the environmental impact of fines disposal plus their technical defects in the retorting process. The results showed that the pretreatment in acidic medium was promising due to carbonate minerals dissolution leading to higher liberation and cleaning the particles’ surface. The organics % was enriched from 26.5% to 33.2% at pH 3 using the conditioning step only, while after flotation, organics % were increased to 43% with a recovery of 50%.

研究了搅拌和磨擦条件预处理对有机物富集的影响。使用相对较粗的颗粒尺寸（-0.5 + 0.1 mm）可避免高昂的粉碎成本，细粉处理对环境的影响以及干馏过程中的技术缺陷。结果表明，在酸性介质中进行预处理是有希望的，这是由于碳酸盐矿物的溶解导致更高的游离度和清洁颗粒表面。仅使用调节步骤，在pH 3下有机物百分比从26.5％增至33.2％，而浮选后，有机物百分比增加至43％，回收率为50％。