Combined mixing, reacting, drying and filtering device

Details Combined mixing, reacting, drying and filtering device Combined mixing, reacting, drying and filtering device

1985-05-09

1986-11-11

Sever, Frank

Liquid purification or separation

Processes

Separating

210413, 210414, B01D 3500

Patent

active

046221522

ABSTRACT:
A single apparatus including a mixing vessel and mixing means for achieving a slurry of material introduced within the vessel. A filter is mounted within the vessel in the region of the material being mixed so as to be contacted by the slurry created. The filter is mounted within the vessel in such manner as to efficiently filter, efficiently separate particles from liquid, without interfering or hindering the proper mix action. Mixing, reacting, washing, filtering, vacuum or purge drying, and particle sizing of powdered or granular materials stemming from the slurry, for the process industry, is achieved by reason of the incorporation of the filter within the mixing chamber of a positive-action mixer as described. The successive processing steps of mixing, reacting, washing, filtering, vacuum or purge drying, including the forming of a layer of matter on the filter, coupled with devices by which the layer may be periodically removed and any skin formed thereon also removed, and processing to powdered or granular materials from an initial dry batch or slurry, are accomplished in a single processing vessel without discharging the batch until the entire processing sequence is completed. The mixer, filter arrangement is particularly well suited for use in organic chemical synthesis.

REFERENCES:
patent: 1382056 (1921-06-01), Bontemps et al.
patent: 1734999 (1929-11-01), Cruickshank
patent: 2521121 (1950-09-01), Kilpatrick
patent: 3027102 (1962-03-01), Lodige et al.
patent: 3161591 (1964-12-01), Petter et al.
patent: 3460681 (1969-08-01), List et al.
patent: 3902962 (1975-09-01), Reinhall
patent: 4032442 (1977-06-01), Peterson
Chemical Engineers' Handbook, Perry & Chilton, Fifth Edition, pp. 19-69 to 19-72.

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