In this paper a hydrophobic sponge was prepared by solvent free coating of thermosetting toner from a laser printer via simple heating. The sponge was used for oil-water mixture and emulsion separation. The sponge had good separation performance for the oil-water mixture. In dynamic oil recovery study, the sponge had a flux up to thousands L/(m²·h) for kerosene and n-hexane. For the water-in-petroleum emulsion with 60% water content, the final water content could be brought down to 1.7~5.0 % after 2 cycles of operation. While for the water-in-kerosene emulsion with low water content of 10%, the recovered oil had water content below 1.0%. The study revealed a potential industrial utilization of toner waste, which was beneficial to the emission reduction, and a facile way for fast separation of light oil from water, which was beneficial to the oil waste treatment.

在本文中，疏水性海绵是通过简单加热将激光打印机的热固性调色剂无溶剂涂覆而成的。海绵用于油-水混合物和乳液的分离。海绵对油水混合物具有良好的分离性能。在动态采油研究中，海绵中的煤油和n的通量高达数千L /（m ² ·h）。正己烷。对于含水量为60％的石油包水型乳液，经过2个循环的操作，最终含水量可降至1.7〜5.0％。对于低水含量为10％的煤油包水乳液，回收的油的水含量低于1.0％。研究表明，碳粉废料有潜在的工业利用，这有利于减少排放，并且是一种从水中快速分离轻质油的简便方法，这有利于废油的处理。