Cellulose acetate bound photosensitizer for producing singlet ox

Details Cellulose acetate bound photosensitizer for producing singlet ox Cellulose acetate bound photosensitizer for producing singlet ox

1988-12-20

1991-01-08

Nutter, Nathan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

536135, 536 58, 430 56, 430135, C08B 300, C08B 500, C08B 700

Patent

active

049836706

ABSTRACT:
This invention relates to a photosensitizer which is bound to a cellulose acetate polymer, a method preparing the bound photosensitizer and a process for using the bound photosensitizer. The photosensitizers which may be used in the invention include rose bengal, rhodamine B, acridine orange, methylene blue and zinc phthalocyanine. The photosensitizer is attached to the cellulose acetate by reacting an acid group on the photosensitizer with a hydroxyl group. Finally, the bound photosensitizer may be used to oxidize undesirable oxidizable compounds present in a hydrocarbon or aqueous fraction. One specific example is the sweetening of the sweetening of kerosene which involves oxidizing the mercaptans contained in the kerosene.

REFERENCES:
patent: 4315998 (1982-02-01), Neckers et al.
N. J. Turro, Modern Molecular Photochemistry, Benjamin/Cummings Publishing Co. Inc., pp. 309-311 (1978).

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