Physical Simulation of Solid Liquid Mixture Stability in Molten Aluminum

2018 ◽  
Vol 933 ◽  
pp. 123-128
Author(s):  
Hong Jie Luo ◽  
Ying Le Liu ◽  
Li Zhang ◽  
Yi Han Liu ◽  
Can Liu
Keyword(s):  
Aqueous Solution ◽  
Liquid Metal ◽  
Physical Simulation ◽  
Chemical Properties ◽  
Visual Observation ◽  
Solid Particles ◽  
Digital Information ◽  
Aluminium Matrix Composite ◽  
Gray Histogram ◽  
Mixing Behaviour

Mixing behaviour is a very important process for preparation of aluminum foam by foaming in melt route due to the dispersion of foaming agent, thickening agent or stabilizing agent being added into the liquid metal. However, some unfavourable factors, such as active chemical properties, easy oxidation and evaporation, no fixed shape and opacification of liquid metal at high temperature, result in it is very difficult to observe the melt stirring and changing process. The mixing behaviour of molten aluminium matrix composite was simulated on the basis of water-based system. In addition to visual observation of the mixing effect, gray histogram was introduced to analyse the dispersion of solid particles in aqueous solution quantificationally. The whole experimental procedures were recorded by MV-Capture industrial camera and the intercepted image information was converted to digital information, i.e. standard deviation originated from the gray histogram. The results showed that the stabilization of aqueous solution can be characterized by the obtained digital information and the physical simulation can provide guidance for the fabrication of metal foams.

scholarly journals Chemical Properties of Element 105 in Aqueous Solution: Halide Complex Formation and Anion Exchange into Triisoctyl Amine

1989 ◽  
Vol 48 (3-4) ◽  
Author(s):  
J. V. Kratz ◽  
H. P. Zimmermann ◽  
U. W. Scherer ◽  
M. Schädel ◽  
W. Brüchle ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Complex Formation ◽  
Anion Exchange ◽  
Chemical Properties ◽  
Halide Complex

scholarly journals Chemical Properties of Element 105 in Aqueous Solution: Back Extraction from Triisooctyl Amine into 0.5 M HCl

1993 ◽  
Vol 60 (1) ◽  
Author(s):  
H. P. Zimmermann ◽  
M. Κ. Gober ◽  
J. V. Kratz ◽  
M. Schädel ◽  
W. Brüchle ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Chemical Properties ◽  
Back Extraction

scholarly journals Scale-up of a NiMoP/γAl2O3 catalyst for the hydrotreating and mild hydrocracking of heavy gasoil

2019 ◽  
Vol 74 ◽  
pp. 22 ◽  
Author(s):  
Ricardo Prada Silvy
Keyword(s):  
Scale Up ◽  
Catalyst Support ◽  
Chemical Properties ◽  
Pilot Scale ◽  
Solid Particles ◽  
Metallic Surface ◽  
Hydroxyl Groups ◽  
Alumina Surface ◽  
Distribution Profile ◽  
Surface Hydroxyl

This contribution shows the acquired experience during the scale-up of a NiMoP/γAl2O3 catalyst employed for the hydrotreating and mild hydrocracking of heavy gasoil. Three different strategies were adopted for preparing catalyst batches at pilot scale. They consisted on co-impregnation of γ-alumina extrudates with aqueous solutions containing Ni and Mo salts and phosphoric acid in one or two successive steps. The textural, chemical composition, mechanical strength, metallic surface dispersion and elemental radial distribution profile properties were influenced by the impregnation procedure employed. The co-impregnation with diluted Ni, Mo and P solutions in two successive steps is the best way to prepare the catalyst. This procedure provides a catalyst that exhibits better physico-chemical properties and catalytic activity profile than the other impregnation methods investigated. Heat and mass transfer limitations became very important when preparing catalysts in large quantities. The diffusion intra-particle and extra-particle was observed influenced by the density and viscosity properties of the metallic solution, the liquid-solid contact angle, the reactivity of phosphate, polymolybdate and phosphomolybdate species with the alumina surface hydroxyl groups, the raise of temperature produced in the solid particles during the initial impregnation step and the porosity properties of the catalyst support. It was concluded that the fine control of the metal distribution on the alumina surface during the impregnation is crucial for producing highly active uniform catalysts.

The impact of β-cyclodextrin on biological and chemical properties of mianserin hydrochloride in aqueous solution

2020 ◽  
Vol 314 ◽  
pp. 113589 ◽  
Author(s):  
S. Belica-Pacha ◽  
K. Miłowska ◽  
M. Ionov ◽  
M. Bryszewska ◽  
A. Buczkowski ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Chemical Properties ◽  
The Impact ◽  
And Chemical Properties

scholarly journals Enhancement of As(v) adsorption from aqueous solution by a magnetic chitosan/biochar composite

RSC Advances ◽  
2017 ◽  
Vol 7 (18) ◽  
pp. 10891-10900 ◽  
Author(s):  
Shaobo Liu ◽  
Binyan Huang ◽  
Liyuan Chai ◽  
Yunguo Liu ◽  
Guangming Zeng ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Zeta Potential ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Magnetic Chitosan ◽  
Physical And Chemical ◽  
And Chemical Properties

In this study, a magnetic chitosan/biochar composite (MCB) was prepared successfully, and characterized by SEM, TEM, VSM, XRD, FTIR, XPS, and zeta-potential to obtain its physical and chemical properties.

Sign in / Sign up

Export Citation Format

Share Document