Effects of Adsorption‐Active Media on the Mechanical Properties of Catalysts and Adsorbents

Shchukin, E. D.; Bessonov, A. I.; Kontorovich, S. I.; Polukarova, Z. M.; Sokolova, L. N.; Амелина, Е. А.; Burenkova, L. N.; Romanovsky, B.V.

doi:10.1002/chin.200640230

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2014

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“…Mineral dispersions are objects of importance for basic and applied studies in the field of colloid chem istry [1][2][3][4][5]. Especial attention is focused on systems with high contents of dispersed phases, i.e., so called highly concentrated disperse systems [6,7].…”

Section: Introductionmentioning

confidence: 99%

Concentration factor and rheology of aqueous titanium dioxide dispersions

Zakordonskiy

Soltys

2014

Colloid J

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The rheological properties of aqueous titanium dioxide dispersions have been studied by rota tional viscometry. It has been established that the studied disperse systems are highly structured, and their degree of structuring dramatically increases with the volume fraction ϕ of the solid phase. At solid phase con tents ϕ ≥ 0.164, the breakage of the disperse structure is accompanied by the appearance of local discontinu ities and an abnormal dependence of viscosity on shear stress. The results obtained have been analyzed in terms of the Uriev theory of aggregated systems. The radii of aggregates and maximum solid phase content ϕ m that corresponds to the formation of a continuous disperse structure under the conditions of dynamic impact have been calculated.

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Section: Introductionmentioning

confidence: 99%