Process for removing unwanted material from wanted material

Details Process for removing unwanted material from wanted material Process for removing unwanted material from wanted material

1996-06-25

1998-03-24

McCarthy, Neil

Liquid purification or separation

Processes

Ion exchange or selective sorption

210732, 210924, C02F 128

Patent

active

057308802

ABSTRACT:
Process for removing unwanted material from wanted material containing water by bringing an isocyanate-containing prepolymer into contact with the materials, allowing the prepolymer to react with the water to form a flexible foam and removing the foam obtained from the wanted material.

REFERENCES:
patent: 3869385 (1975-03-01), Stanley et al.
patent: 4980072 (1990-12-01), Augustin et al.
patent: 5504124 (1996-04-01), Cassidy et al.

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