Activated carbon treatment
First Claim
1. Process for purification of a compound comprising an activated carbon treatment using a filter unit containing activated carbon immobilized in a matrix, the treatment comprising:
- a) passing a suitable volume of a feed containing the compound over a first series of n connected filter units operating in series to obtain an effluent, wherein n is at least two, said filter units having been assigned a position number 1 to n in the series and position number 1 being the first supplied with the feed, b) disconnecting a filter unit from the first series of filter units at any position number between 1 to n−
1 after passing the suitable volume of feed, and connecting a fresh filter unit at any position that has a higher number than the position number of the disconnected filter unit, resulting in a next series of filter units, c) passing a next suitable volume of feed containing the compound over the next series of filter units to obtain a next effluent, d) optionally combining the effluents obtained in a and c, and e) recovering the compound from the effluent.
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Abstract
The present invention relates to a process for purification of a compound using an activated carbon treatment. In the process according to the present invention several filter units containing activated carbon immobilized in a matrix are operating in series and in a counter current mode. After passing a suitable volume of feed, a filter unit from the first series of filter units is disconnected at a particular position number, and an additional filter unit is connected at another particular position number herewith obtaining a next series of filter units where over the passing of a next volume of feed is continued. This process overcomes the problem of loss of yield of the purified compound as occurs during conventional activated carbon treatment.
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Citations
19 Claims
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1. Process for purification of a compound comprising an activated carbon treatment using a filter unit containing activated carbon immobilized in a matrix, the treatment comprising:
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a) passing a suitable volume of a feed containing the compound over a first series of n connected filter units operating in series to obtain an effluent, wherein n is at least two, said filter units having been assigned a position number 1 to n in the series and position number 1 being the first supplied with the feed, b) disconnecting a filter unit from the first series of filter units at any position number between 1 to n−
1 after passing the suitable volume of feed, and connecting a fresh filter unit at any position that has a higher number than the position number of the disconnected filter unit, resulting in a next series of filter units,c) passing a next suitable volume of feed containing the compound over the next series of filter units to obtain a next effluent, d) optionally combining the effluents obtained in a and c, and e) recovering the compound from the effluent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification