Method of recovering polyester fibers and cellulosic powder from

Details Method of recovering polyester fibers and cellulosic powder from Method of recovering polyester fibers and cellulosic powder from

1981-06-01

1982-08-17

Lieberman, Allan

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

Synthetic resins

Process of treating scrap or waste product containing solid...

521 40, C08J 1100, C08J 1104

Patent

active

043450393

ABSTRACT:
A method of recovering useful polyester fibers and cellulosic material from textile wastes containing blended polyester/cellulosic fibers wherein the textile waste is treated with anhydrous hydrochloric acid gas under reaction conditions sufficient to degrade the cellulosic material, the treated waste is mechanically degraded to convert the reacted cellulosic material to a fine powder, and thereafter the cellulosic material is separated from the polyester fibers.

REFERENCES:
patent: 3937671 (1976-02-01), Gruntfest et al.
patent: 3937675 (1976-02-01), Gruntfest et al.

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