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unusual facts about catalysts



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Agrupación de Fuerzas Especiales Antiterroristas Urbanas

Although Colombia's 40-year long conflict with guerrilla groups had given many reasons for such a unit to exist, two terrorist acts in particular worked as catalysts in the formation the unit: the Dominican embassy siege in 1980 and the Palace of Justice siege (Colombian Supreme Court) in 1985.

Belt dryer

Veneers, wood fiber insulating boards, paints, molding materials, synthetic rubber, superabsorbent polymer, stearate, catalysts, coke, fruits, vegetables, cereals.

Carbon nanotube supported catalyst

The catalyst supports can improve specific properties such as mechanical strength, distribution, stability, catalytical reactivity and selectivity of catalysts.

Catalysts and Catalysed Reactions

Each issue of the journal includes a selected collection of abstracts from recently published scientific articles covering the research areas of catalysed reactions and catalysts.

Koch reaction

Usage of a Ni(CO)4 catalyst with CO and water as a nucleophile is known as the Reppe carbonylation, and there are many variations on this type of metal-mediated carbonylation used in industry, particularly those used by Monsanto and the Cativa processes, which convert methanol to acetic acid using acid catalysts and carbon monoxide in the presence of metal catalysts.

Kumada coupling

The first investigations into the catalytic coupling of Grignard reagents with organic halides date back to the 1941 study of cobalt catalysts by Karasch and Fields.

Organotitanium compound

Ziegler-Natta catalysts utilizing titanium-based catalysts soon followed as a major commercial application for which the 1963 Nobel Prize in Chemistry was awarded.

Polyethylene

Catalytic systems based on soluble catalysts, the metallocenes, were reported in 1976 by Walter Kaminsky and Hansjörg Sinn.

The Significance of the Frontier in American History

Urban historian Richard C. Wade challenged the Frontier Thesis in his first asset, The Urban Frontier (1959), asserting that western cities such as Pittsburgh, Louisville, and Cincinnati, not the farmer pioneers, were the catalysts for western expansion.

Võ Tòng Xuân

He helped to bring about reforms in the early 1980s that can be seen as catalysts to the Doi Moi reforms of 1986.

Volcano plot

Sabatier principle - a concept in chemical catalysis that relates the optimal concentrations of catalysts and substrates

Zinc–air battery

Cobalt oxide/carbon nanotube hybrid oxygen reduction catalyst and Nickel-iron layered double hydroxide oxygen evolution cathode catalysts exhibited higher catalytic activity and durability in concentrated alkaline electrolytes than precious metal Platinum and Iridium catalysts.


see also