Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Otakar Söhnel"'
Publikováno v:
Urology Case Reports, Vol 7, Iss C, Pp 37-38 (2016)
A case of a patient who developed multiple calcium oxalate dihydrate calculi, some of them connected to intratubular calcifications (Randall's plugs), is presented. Randall's plugs were isolated and studied. The mechanism of Randall's plug developmen
Externí odkaz:
https://doaj.org/article/8403f9bc511f44929adc6d49e6417c86
Publikováno v:
Crystal Research and Technology. 20:337-343
Changes in the morphology of scale deposited on the surface of a submerged cooling element during its prolonged contact with a saturated solution of oxalic acid were studied. Needle-like crystals formed during the initial stage of oxalic acid scale d
Publikováno v:
Collection of Czechoslovak Chemical Communications. 48:2327-2334
Two methods are given for assessment of density of binary aqueous solutions of electrolytes; one is based on partial molar volume of the dissolved electrolyte at infinite dilution, and the other is based on additivity of apparent molar volumes at a g
Autor:
Otakar Söhnel
Publikováno v:
Journal of Crystal Growth. 57:101-108
Interfacial tensions for a number of electrolyte crystals in aqueous solutions, α, determined from crystallization data are collected form literature sources. Suggested correlations of α with solubility and/or heat of crystallization are verified;
Autor:
Otakar Söhnel
Publikováno v:
Collection of Czechoslovak Chemical Communications. 46:2364-2370
An analysis has been performed of the continuous precipitation reactor - rotary vacuum filter system (operating at the selected negative pressure drop) on the basis of the unit output. Filtration area necessary for separation of the product from the
Autor:
Otakar Söhnel
Publikováno v:
Collection of Czechoslovak Chemical Communications. 48:2569-2575
Filtration characteristics of BaCO3 and SrCO3 suspensions precipitated batchwise at differing conditions were studied in dependence on the used filtration pressure drop. Both compounds form compressible filtration cakes whose behaviour is described b
Autor:
Otakar Söhnel
Publikováno v:
Collection of Czechoslovak Chemical Communications. 46:2640-2649
Porosity of the filtration cake, formed at filtration of model suspensions of CaCO3, BaCrO4 and ZnO is not a function of suspension concentration as long as the solid phase forming the suspension is of the same granulometric composition. The calculat
Publikováno v:
Crystal Research and Technology. 18:527-533
The temperature dependence of the kinetics of incrustations growth on heat-exchange surfaces from solutions of NH4NO3 was examined. With increasing temperature the formal kinetic exponent of growth is decreasing and the kinetic constant of growth is
Autor:
Otakar Söhnel
Publikováno v:
Materials Research Bulletin. 9:489-494
The results of micro-cinematographic studies on procesess taking place on the (100) face of NaCl crystals growing from a solution containing 2–4.10 −3 M Pb 2+ are presented. It is demonstrated that the crystallization of NaCl with Pb 2+ conforms
Autor:
Otakar Söhnel, Eva Matějčková
Publikováno v:
Collection of Czechoslovak Chemical Communications. 47:3362-3370
Filtration properties of batchwise precipitated suspensions of Zn(OH)2, Mg(OH)2 and Cu(OH)2 and continuously precipitated Al(OH)3 were studied. For batchwise precipitated suspensions was verified the theoretically predicted dependence of specific fil