Synthetic chemical absorbents

B - Operations – Transporting – 01 – J

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B01J 20/26 (2006.01) B01D 53/04 (2006.01) C08J 9/42 (2006.01) C09K 3/32 (2006.01) G21F 9/12 (2006.01)

Patent

CA 1165748

ABSTRACT OF THE DISCLOSURE A method of absorbing bases, acids, alcohols and radioactive liquids using phenol resin foamed plastic particles. The size of the particles should lie between about 0.25 and 70mm. They may be powdered open-celled or close- celled. They may be treated with an acid for absorbing a base, or with a base for absorbing an acid. A preferred use is in the form of packing material. The particles may be disposed in the form of of powder or flakes in liquid- permeable padding. The padding may be composed of a plastic web, in particular a nylon web, or of a non-woven fabric. As packing material the phenol resin foamed plastic may be in the form of sheets, blocks, cubes, tablets, balls or fragments.

378006

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