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SCIENTIFIC ABSTRACT B.V. DERYAGIN - B.V. DERYAGIN

Document Type: 
CREST [1]
Collection: 
Scientific Abstracts [2]
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP86-00513R000310220009-4
Release Decision: 
RIF
Original Classification: 
S
Document Page Count: 
100
Document Creation Date: 
January 3, 2017
Document Release Date: 
July 27, 2000
Sequence Number: 
9
Case Number: 
Publication Date: 
December 31, 1967
Content Type: 
SCIENTIFIC ABSTRACT
File: 
AttachmentSize
PDF icon CIA-RDP86-00513R000310220009-4.pdf [3]1.92 MB
Body: 
H4 The Electric Field cf a Moving Uncharged S/O 6 9 /6 C) / C) 2' j OD CC' Drc~p. 2. The Theory cf the Electrl.c- Field 1,C) I C,/"Bc) (".I of a Drop Centaim"ng a Nor~ T),is h:Id5 for the ateady motion cf a dtop, whinh i, fier.,, ISSUMine, U 'all ing drcp in an ion-free gag, rihost mclicr- -Kara- !-,!' 1 2,- - by Re a + 6 +2L. C I denotes the number of liquid molecules Card 1/3 87409 The Influence of Monomolecular Layers Upon S/020/60,/135/006/025/037 the Evaporation of Drops B004/BO56 per cm3 of film, C 2 the concentration of vapor in the air, a the radius of the drop, 6 the thickness of the film, % the thickness of the layer of air immediately adjoining the film. AV A2v Bit B 2are coefficients. On the basis of the boundary conditions for diffusion on the boundaries r - a + and r a + 6 4 Xthe following relation is derived for a film (6 4 concentration effecting the shift of the shedding line is 5-10- gmole/1 according to (29), which corresponds to the concentrations of xanthogenate used in industrial flotation. Since these correspond to (14), they have no retardation effect on the bubble surface. In the zone~.i7E, J2(G) grov"s more rapidly than J 1(~).- The comparison of the components of, (25) is only of use. if G-'9 '-iihere 9 position of t~e shedding lines in Dure \ lp 1D ~ liquid. The "critical" concentration, where a shift of the sheddin.4,,,Iines begins, is: ganU2 -sint 0,, clip - (31) (2vDPRTJ,(D,p)' 7"ith co~clc'o the shedding lines are shifted to the zone Q~"P,P* Since in Card 5/0 5 S/076/61/035/006/005/013 Kinetics of minera-1 ... B110/B220 this case the first comporient of (25) is larger than the second, J2 (01) 9TIU.,- 'i (32a) i7ln-101 - (2vD)'/s RTco holds which after transformation has the form j,(Q,) sin"OP oil UP J..(O,,) sin*ol - CO (33j - The bubble surface consists of: (A) shedding zone, (B) zone of transiiion, and (C) zone of slight-xetardation. Since (25) applies only for (C), it has to be defined more exactly: If (7) hol('Athe retardation in" (C) may be described by comparing the third and first components of (13) and 1(2~). 1 2 (9)/sin29 in case (14) it is fl(~)=J,(G)/sin 9, in case (15) f2(Q)=j2 (Figs. I and 2). The difference between the two amounts to 4 powers of ten, e. g. for (14)- c =jo-3gmole/j, for (15): c - lo-7-c7niole/l. In 0 kp kD 1 shifted from the reAr to the equator at concen-. (14) 'he shedding linv,--k-1 trations from ckp to tRe ckp , i. e. for an increase in concentration by 1 Card 619 S/076/61/035/006/005/013 Kinetics of mineral ... B110/B220 power of ten. In (15) the increase in concentration must be 4 powers of ten. Since for 0 - 90-1700 f 2(9) decreases more rapidly than fl(g), with decreasing 9 the zone 9

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