ChemInform Abstract: Epoxidation of Propylene over Silver-Catalysts.

1982 ◽  
Vol 13 (37) ◽  
Author(s):  
S. SZAKACS ◽  
G. MINK ◽  
F. NAGY
Keyword(s):  
Epoxidation Of Propylene ◽  
Silver Catalysts

Epoxidation of propylene on NaCl-modified silver catalysts with air as the oxidant

2002 ◽  
Vol 237 (1-2) ◽  
pp. 11-19 ◽  
Author(s):  
Jiqing Lu ◽  
Mengfei Luo ◽  
Hao Lei ◽  
Can Li
Keyword(s):  
Epoxidation Of Propylene ◽  
Silver Catalysts

Recent advances in the Silver catalysed synthesis of furan and its applications

2020 ◽  
Vol 09 ◽  
Author(s):  
C M A Afsina ◽  
Mohan Neetha ◽  
Thaipparambil Aneeja ◽  
Gopinathan Anilkumar
Keyword(s):  
Organic Synthesis ◽  
Oxidation Potential ◽  
Silver Complexes ◽  
Wide Spread ◽  
Silver Catalysts ◽  
Recent Advances ◽  
High Oxidation ◽  
Furan Moiety ◽  
Anti Fungal ◽  
Fragrance Compounds

: Furan and its derivatives find wide-spread application as pharmaceuticals, pigments, dyes, brighteners, flavour & fragrance compounds and insecticides. They also exhibit anti-hyperglycemic, analgesic, anti-inflammatory, antibacterial, anti-fungal and anti-tumour activities. Silver catalysts are nowadays commonly used in organic synthesis due to the high oxidation potential and versatile nature of silver complexes. In this review, we summarise the recent advances in the synthesis and applications of furan moiety using silver catalysis and covers literature from 2015-2020.

Decomposition of hydrogen peroxide on nickel-silver two-component catalyst

1984 ◽  
Vol 49 (10) ◽  
pp. 2222-2230 ◽  
Author(s):  
Viliam Múčka ◽  
Rostislav Silber
Keyword(s):  
Hydrogen Peroxide ◽  
Chemical Properties ◽  
Silver Ions ◽  
Surface Concentration ◽  
Chloride Ions ◽  
Nickel Silver ◽  
Silver Catalysts ◽  
Physico Chemical ◽  
Low Degree ◽  
Defective Crystal

The catalytic and physico-chemical properties of low-temperature nickel-silver catalysts with nickel oxide concentrations up to 43.8% (m/m) are examined via decomposition of hydrogen peroxide in aqueous solution. The mixed catalysts prepared at 250°C are composed of partly decomposed silver carbonate or oxide and nickel carbonate or hydroxide decomposed to a low degree only and exhibiting a very defective crystal structure. The activity of these catalysts is determined by the surface concentration of silver ions, which is affected by the nickel component present. The latter also contributes to the thermal stability of the catalytic centres of the silver component, viz. the Ag+ ions. The concentration of these ions varies with the temperature of the catalyst treatment, the activity varies qualitatively in the same manner, and the system approaches the Ag-NiO composition. The catalytic centres are very susceptible to poisoning by chloride ions. A previous exposition of the catalyst to a gamma dose of 10 kGy from a 60Co source has no measurable effect on the physico-chemical properties of the system.

High-Loading Single-Atomic-Site Silver Catalysts with an Ag1–C2N1 Structure Showing Superior Performance for Epoxidation of Styrene

ACS Catalysis ◽  
2021 ◽  
pp. 4946-4954
Author(s):  
Shubo Tian ◽  
Chao Peng ◽  
Juncai Dong ◽  
Qi Xu ◽  
Zheng Chen ◽  
...  
Keyword(s):  
Superior Performance ◽  
High Loading ◽  
Atomic Site ◽  
Silver Catalysts

An efficient hydrophobic modification of TS-1 and its application in the epoxidation of propylene

2019 ◽  
Vol 43 (26) ◽  
pp. 10390-10397 ◽  
Author(s):  
Baohe Wang ◽  
Huanhuan Han ◽  
Baomin Ge ◽  
Jing Ma ◽  
Jing Zhu ◽  
...  
Keyword(s):  
Hydrophobic Modification ◽  
Epoxidation Of Propylene ◽  
Product Generation ◽  
Precursor Modification

Hydrophobic TS-1 was synthesized through resole resin precursor modification. Hydrophobic TS-1 can avoid by-product generation.

Trimethylamine as a Gas-Phase Promoter: Highly Efficient Epoxidation of Propylene over Supported Gold Catalysts

2006 ◽  
Vol 118 (3) ◽  
pp. 426-429 ◽  
Author(s):  
Biswajit Chowdhury ◽  
Juan. J. Bravo-Suárez ◽  
Masakazu Daté ◽  
Susumu Tsubota ◽  
Masatake Haruta
Keyword(s):  
Gas Phase ◽  
Gold Catalysts ◽  
Epoxidation Of Propylene ◽  
Supported Gold Catalysts ◽  
Highly Efficient ◽  
Supported Gold
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