In-situ repair of damaged filter cloths used in solvent dewaxing filters.

摘要

A method for the in-situ repair of damaged filter cloths (having tears or holes therein) in solvent dewaxing filters comprises thoroughly washing the filter cloth in the area of the damage to remove wax and oil, applying a quantity of solvent resistant adhesive to the damaged area such that the area of treatment extends beyond the hole or tear and adhesive overlays onto undamaged cloth, optionally (i) inserting pre-cut portions of filter cloth into the damage so as to completely fill the hole or tear but not create a bulge or cloth build up in the face of the filter cloth or (ii) overlaying patches of filter cloth on the damaged area and, finally and optimally, applying a final coating of adhesive over the repaired area.