Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1978-07-19
1980-10-28
Niebling, John F.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260420, 210219, 134109, 366165, 366339, C09F 510, C11B 300
Patent
active
042306302
ABSTRACT:
Triglyceride oils are bleached rapidly and efficiently in a continuous system wherein a stream of the oil is preheated to bleaching temperature and is introduced into a mixing zone in such manner as to provide a swirling motion, bleaching adsorbent containing moisture is added to the surface of the swirling hot oil and water vapor or steam derived from the moisture in the adsorbent forms a protective atmosphere above the surface of the oil to protect it from oxidation. The oil-adsorbent mixture is pumped continuously from the mixer to a bleaching zone consisting of one or more static mixers, which may be unobstructed pipe sections, under flow conditions providing an average residence time of approximately one minute. The flow regime in the bleaching zone may be laminar or turbulent. Optionally, the oil-adsorbent mixture may flow continuously from the mixing zone to a vacuum dryer where it is deaerated and dried to optimum moisture content for bleaching prior to being pumped to the bleaching zone. Total time through the system may be in the order of less than three minutes. The advantages include simplicity of the operation, savings in time and ease of changing feedstocks.
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Mag Theodore K.
Reid Margaret P.
Canada Packers Limited
Grove, Jr. Jesse B.
Niebling John F.
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