Formation of alkyl(or aryl)chlorosilanes by the direct reaction of alkyl(or aryl)chlorides with silicon communication 3. Direct synthesis of dichloroethylsilane

1963 ◽  
Vol 12 (1) ◽  
pp. 77-80
Author(s):  
S. A. Golubtsov ◽  
R. A. Turetskaya ◽  
K. A. Andrianov ◽  
Ya. I. Vabel'
Keyword(s):  
Direct Synthesis ◽  
Direct Reaction ◽  
Aryl Chlorides

Formation of alkyl (or aryl) chlorosilanes by the direct reaction of alkyl (or aryl) chlorides with silicon

1962 ◽  
Vol 11 (10) ◽  
pp. 1696-1701
Author(s):  
K. A. Andrianov ◽  
R. A. Turetskaya ◽  
S. A. Golubtsov ◽  
I. V. Trofimova
Keyword(s):  
Direct Reaction ◽  
Aryl Chlorides

Grass-like Co2P superstructures: direct synthesis between elements, forming mechanism and catalytic properties

RSC Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 5154-5160 ◽  
Author(s):  
Hao Wu ◽  
Yonghong Ni ◽  
Feng Hong ◽  
Dican Lu ◽  
Yanling Xiao
Keyword(s):  
Catalytic Properties ◽  
Direct Synthesis ◽  
Direct Reaction ◽  
Forming Mechanism ◽  
Catalytic Performances

Grass-like Co2P superstructures with good catalytic performances were successfully prepared through a direct reaction between elements route.

Formation of alkyl(aryl)chlorosilanes in the direct reaction of alkyl(aryl)chlorides with silicon

1970 ◽  
Vol 19 (4) ◽  
pp. 754-760
Author(s):  
R. A. Turetskaya ◽  
S. A. Golubtsov ◽  
K. A. Andrianov ◽  
A. M. Mosin ◽  
Z. V. Pastukhova ◽  
...  
Keyword(s):  
Direct Reaction ◽  
Alkyl Aryl ◽  
Aryl Chlorides

scholarly journals A Study of Palladium-Nickel Catalyst for Direct Synthesis of Hydrogen Peroxide: A DFT Approach

2020 ◽  
Vol 5 (2) ◽  
pp. 46-55
Author(s):  
Mawan Nugraha ◽  
◽  
Susiani Pupon ◽  
Nofiandri Setyasmara ◽  
◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Density Functional ◽  
Catalyst Surface ◽  
Direct Synthesis ◽  
Direct Reaction ◽  
Theory Approach ◽  
Functional Theory ◽  
Current Production ◽  
The Stability ◽  
H2o2 Direct Synthesis

Hydrogen peroxide is an important material for bleaching agent in paper production related to the low price and environmentally friendly chemical. The current production of H2O2 is well-known as indirect synthesis, which uses danger anthraquinone. The synthesis was improved by using the direct reaction of H2 and O2 on Pd or PdAu alloy's catalyst surface and has been known as direct synthesis. The current catalyst used is Pd-Au, but it has limited availability in nature. Therefore we need the alternative of Pd-Au. We investigated Ni alloyed with Pd for the new H2O2 direct synthesis catalyst using a density functional theory approach. We selected the O adsorption to screen the catalysts and compared the species adsorption trend on the surfaces of PdNi and the proven catalysts such as Pd, PdAu, and PdHg. Since the trend of O adsorption on the PdAu and PdNi is similar, it can be concluded that the catalytic selectivity of PdNi equal with PdAu. Further, the stability of PdNi alloy was explored by calculating the binding and compared it with Pd, which leads to the conclusion that PdNi can be a good catalyst for H2O2 synthesis.

Formation Enthalpy of Bli Intermediate Phase

2014 ◽  
Vol 59 (1) ◽  
pp. 299-303 ◽  
Author(s):  
W. Gąsior ◽  
A. Dębski ◽  
R. Major
Keyword(s):  
High Purity ◽  
Intermediate Phase ◽  
Direct Synthesis ◽  
Intermetallic Phase ◽  
Formation Enthalpy ◽  
Calorimetric Method ◽  
Direct Reaction ◽  
X Ray Diffraction ◽  
Calorimetric Technique ◽  
Reaction Calorimeter

Abstract The formation enthalpy of the BLi (B48Li52) intermetallic phase was measured with the use of the water reaction and the direct reaction calorimetric method. The phase was prepared of weighed amounts of B and Li in a glove-box filled with high purity argon. The BLi phase was confirmed with using the X-ray diffraction investigations. The experiments were carried out with the use of a water reaction calorimeter (water reaction calorimetric technique) at 25°C (298 K) in air, as well as a direct reaction calorimeter at 752°C in high purity argon. The formation enthalpy value obtained for the BLi phase in the case of the water reaction calorimetric method equaled -30.3±2.2 kJ/mole of atoms and in the case of the direct synthesis technique - 29.4±2.0 kJ/mole of atoms.

Continuous Ozonation of Polycyclic Aromatic Hydrocarbons in Oil/Water-Emulsions and Biodegradation of Oxidation Products

1999 ◽  
Vol 40 (4-5) ◽  
pp. 107-114 ◽  
Author(s):  
A. Kornmüller ◽  
U. Wiesmann
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Biological Treatment ◽  
Reaction Rate ◽  
Oxidation Products ◽  
Direct Reaction ◽  
Biological Degradation ◽  
Polycyclic Aromatic ◽  
Oil Water ◽  
Treatment Step

The continuous ozonation of polycyclic aromatic hydrocarbons (PAH) was studied in a two stage ozonation system followed by serobic biological degradation. The highly condensed PAH benzo(e)pyrene and benzo(k)fluoranthene were oxidized selectiely in synthetic oil/water-emulsions. The influence of the ozone mass transfer gas-liquid on the reaction rate of benzo(k)fluoranthene was studied for process optimization. The dissolved ozone concentration is influenced by temperature to a higher degree than the reaction rate of PAH. In dependence on pH, PAH oxidation occurs by a direct reaction with ozone inside the oil droplets. Two main ozonation products of benzo(e)pyrene were quantified at different retention times during ozonation and their transformation could be shown in the biological treatment step.

Sign in / Sign up

Export Citation Format

Share Document