Methods, apparatus and compositions for recycling engine coolant (PROCESS, APPARATUS AND COMPOSITION FOR RECYCLING ENGINE COOLANT)

摘要

The present invention relates to a process for physically and chemically treating a coolant containing one or more glycol and / or alcohol-based antifreeze components used in automobiles produced in the United States, Europe or Japan / Asia. This process includes oxidizing using one or more known oxidants, precipitation using one or more known salt formers, and filtration using any suitable filtration membrane or other separation means. Additives have been developed for use in carrying out the process of the present invention to initiate and maximize the amount of oxidation and precipitation in the coolant composition, which additives are formulated in an amount sufficient to control the pH of one or more suitable corrosion inhibitors and the final solution. One or more known buffers. The apparatus 10 used to perform the process of the present invention is also described. This apparatus comprises a vessel 12, a circulation conduit 15, and filtration means 32 for holding the coolant used to recycle the coolant.