Method and device for the continuous pre-polycondensation of esterification/transesterification products
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United States of America Patent
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Issued Date -
Feb 9, 2006
app pub date -
Aug 6, 2005
filing date -
Aug 7, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a method for the continuous pre-polycondensation of esterification/transesterification products the stream freely passes from top to bottom in a vertical reaction apparatus through a plurality of attached, heatable, sloped open-above bases, through product overflow channels connected with each other. In order to be able to set a determined, efficient as possible product level in the channels, the esterification/transesterification products are fed though closed, annular-type, concentric annular channels or through parallel channels, wherein a partial quantity of the product stream flowing in the channel is discharged at the product overflows and the remaining product stream is passed via drainage openings.
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