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COLORED FERROMAGNETIC ALtJMINO SILICATE PARTICLES IN THE

IP.com Disclosure Number: IPCOM000023074D
Original Publication Date: 1976-Aug-31
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 221K

Publishing Venue

Xerox Disclosure Journal

Abstract

The naturally occurring and synthetic crystalline alumino silicates known collectively as zeolites may, by the process of ion exchange, be loaded with various cations including those of the ferromagnetic metals, nickel and iron. Subsequent to ion exchange these cations can be reduced to their zero valent state by hydrogen or carbon monoxide to produce a material having ferromagnetic sus~ ceptibility, It is proposed that nickel or iron ion exchange and subsequent reduction of various zeolites be investigated and that the particulate porous ferromagnetic materials so obtained be further investigated with respect to their absorption properties for dyes, Since th~ channels and pores in zeolites X and Y are 8 to 9 A in diameter it is likely that dye molecules will be absorbable to produce colored, ferromagnetic particles, Although it is possible that the reduced metal containing zeolites will be black, it is not inevitable, Thus, palladium (II) ion exchanged zeolite Y is white after hydrogen reduction to Pd°, It is also noted that even in the event of obtaining a black reduced product, subsequent dry absorption/ could yield a colored material for the same reasons that a colored paint on a black background exhibits its normal color,

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XEROX DISCLOSURE JOURNAL

COLORED FERROMAGNETIC ALtJMINO Proposed Classification
SILICATE PARTICLES IN THE tJ,S, Cl, 252/62,55

                                 Int, CL 322f 3/00
Richard Kellerman

The naturally occurring and synthetic crystalline alumino
silicates known collectively as zeolites may, by the
process of ion exchange, be loaded with various cations
including those of the ferromagnetic metals, nickel and
iron. Subsequent to ion exchange these cations can be
reduced to their zero valent state by hydrogen or carbon
monoxide to produce a material having ferromagnetic sus~
ceptibility, It is proposed that nickel or iron ion
exchange and subsequent reduction of various zeolites be
investigated and that the particulate porous ferromagnetic
materials so obtained be further investigated with respect
to their absorption properties for dyes, Since th~
channels and pores in zeolites X and Y are 8 to 9 A in
diameter it is likely that dye molecules will be absorbable
to produce colored, ferromagnetic particles, Although it
is possible that the reduced metal containing zeolites will
be black, it is not inevitable, Thus, palladium (II) ion
exchanged zeolite Y is white after hydrogen reduction to Pd°,
It is also noted that even in the event of obtaining a black
reduced product, subsequent dry absorption/ could yield a
colored material for the same reasons that a colored paint
on a black background exhibits its normal color,

Volume 1 Number 8 August 1976 43

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