Hydrolytic decomposition method

Details Hydrolytic decomposition method Hydrolytic decomposition method

1980-10-06

1981-07-28

Doll, John

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

260 23, 521 63, 521918, 528 44, 528 67, 564334, 564377, 564386, 564414, 564437, 568753, 568854, 568858, 568613, 568675, C07C 8526, C08J 1100

Patent

active

042811970

ABSTRACT:
Porous polyurethane solids such as open cell polyurethane foams are rapidly heated and hydrolytically decomposed into separate polyol component and diamine component by contacting the porous solids with saturated steam in a heated vacuum chamber. Separation of high quality liquid polyol and diamine is achieved.

REFERENCES:
patent: 3225094 (1965-12-01), Wolf
patent: 4025559 (1977-05-01), Johnson
patent: 4051212 (1977-09-01), Grigat et al.
patent: 4196148 (1980-04-01), Mahoney
Perry, "Chemical Engineer's Handbook", 4th Ed., pp. 8-63 & 8-64 (1974).

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