公开(公告)号：EP0521369A1

公开(公告)日：1993-01-07

申请号：EP92110540.9

申请日：1992-06-23

申请人： STANADYNE AUTOMOTIVE CORP.

发明人： Eaton, Edward R. ,  De Marre, John B.

IPC分类号： B01D61/02 ,  F01P11/06

CPC分类号： B01D61/025 ,  F01P11/06

摘要： An apparatus and a process for recycling used engine coolant employs a reverse osmosis process for separating ethylene glycol from a concentrate coolant solution. The engine coolant concentrate is pre-filtered through a series of filters and pressurized prior to being passed through a semi-permeable membrane. The membrane separates the feed stream into a permeate solution of ethylene glycol and water and a concentrate solution. The concentrate solution is returned to a concentrate tank for continuous circulation through the apparatus. A heat exchanger maintains the temperature of the concentrate solution below a pre-established threshold.

摘要翻译： 用于回收利用的发动机冷却剂的装置和方法采用反渗透方法从浓缩冷却剂溶液中分离乙二醇。 发动机冷却剂浓缩物通过一系列过滤器预过滤，并在通过半透膜之前加压。 膜将进料流分离成乙二醇和水的透过液和浓缩液。 将浓缩液返回到浓缩罐中，以连续循环通过该装置。 热交换器将浓缩液的温度维持在预先建立的阈值以下。