Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1981-12-24
1983-06-14
Clingman, A. Lionel
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
149100, 536 35, C08B 504
Patent
active
043884580
ABSTRACT:
The instant invention relates to a process for removing trace sulfuric acid rom nitrocellulose fibers by dispersing the fibers in water and then subjecting them to ultrasonic energy for a time period and at an energy level sufficient to enhance the nitrocellulose fibers contact with water and facilitate sulfuric acid dispersal in the water. The waste water containing the traces of sulfuric acid contaminant from the nitrocellulose fibers is removed and the purified nitrocellulose fibers recovered.
REFERENCES:
patent: 3057012 (1962-10-01), Lufkin
patent: 3456357 (1969-07-01), Griffith
patent: 4138535 (1979-02-01), Schweiser
patent: 4334060 (1982-06-01), Blais
Baumann Robert P.
Blais Marcel
Spiess Irwin
Clingman A. Lionel
Erkkila A. Victor
Gibson Robert P.
Lane Anthony T.
The United States of America as represented by the Secretary of
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