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Publication Title | CONTACTING DEVICE US4549998

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United States Patent [19] Portereta1.

[54] CONTACTINGDEVICE

[75] Inventors: JohnE.Porter,Newcastleupon Tyne; Colin Ramshaw, Norley, both

ofEngland

[73] Assignee: ImperialChemicalIndustriesPLC, Hertfordshire,England

[21] Appl.No.: 701,446

[1] PatentNumber: 4,549,998 [45] DateofPatent: Oct.29,1985

2,342,469 2/1944 Holm-Hanson ..261/89

2,601,519 6/1952 Hardyeta1.

2,809,817 10/1957 Munters .....

2,941,872 6/1960 Piloetal.

3,095,149 6/1963 Peebles .......

3,544,084 12/1970 Macrow

4,397,795 8/1983 Jackson................................261/89

FOREIGN PATENT DOCUMENTS

977673 11/1975 Canada ................................,. 261/88

808114 7/1951 Fed. Rep. ofGermany .

2308440 8/1974 Fed. Rep. ofGermany ..261/90 2408753 4/1975 Fed.Rep.ofGermany.

347303 4/1931 United Kingdom ..261/90 757149 9/1956 UnitedKingdom.

PrimaryExaminer-Tim Miles Attorney,Agent,orFirm—Cushman,Darby& Cushman

[57] ABSTRACT

In a centrifugal device for contacting a liquid with a gas or with a second liquid, high rates of mass transfer are achieved by carrying out the contacting on a rotating platewhose surfaceiscapableofcreatingperturbations in liquid ?owing across it.

6 Claims, 7 Drawing Figures

[22] Filed:

Feb.13,1985

Related U.S. Application Data

[63] ContinuationofSer.No.444,336,Nov.24,1982,aban doned.

[30] ForeignApplicationPriorityData

Nov.24,1981[GB] UnitedKingdom..8135407

[51] Int.Cl.4..B01F3/04 [52] U.S.Cl...

[58] FieldofSearch..261/88,89,9O

[56]

ReferencesCited U.S.PATENT DOCUMENTS

2,220,657 l1/1940 Placek .................................. 261/90

261/90 ............ 261/88

..261/89 ..... 261/89

261/90

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