Classifying – separating – and assorting solids – Plural – diverse separating operations – Including electrostatic
Patent
1988-05-20
1990-01-16
Kashnikow, Andres
Classifying, separating, and assorting solids
Plural, diverse separating operations
Including electrostatic
209 40, 2091271, 209129, 209131, 209210, 209478, 209493, 210748, B03B 700, B03C 500
Patent
active
048941468
ABSTRACT:
A thin channel split flow process for particle fractionation which effects a rapid and efficient separation of the particles comprising continuously introducing two or more fluid substreams of different composition into separate inlet ports of a thin enclosed channel having a thickness which is very thin compared to the other two dimensions and bringing the substreams into contact with adjacent substreams so as to collectively form a series of thin laminae flowing parallel to one another in the channel and in contact with one another over a sufficient length of channel to allow a desired level of mass transport between and through laminae, continuously introducing a fluid medium containing the particles to be separated as one or more of the fluid substreams and independently of the particle concentration, varying the fluid composition of the different substreams as needed to realize separation, at the outlet end of the channel splitting the collective streams into another set of substreams so as to permit separate recovery of one or more of the substreams.
REFERENCES:
patent: Re31688 (1984-09-01), Popovich et al.
patent: 3140714 (1964-07-01), Murphy
patent: 3212498 (1965-10-01), McKirdy
patent: 4250026 (1981-02-01), Giddings
patent: 4284498 (1981-08-01), Grant
patent: 4487689 (1984-12-01), Galaj
patent: 4657676 (1987-04-01), Keary
patent: 4737268 (1988-04-01), Giddings
Kashnikow Andres
University of Utah
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