Photocatalytic selective oxidation of anionic compounds on TiO2 photocatalysts modified with quaternary ammonium base groups

Abstract The problem of e-waste processing and recovery of valuable metals from such waste for the second use is attracting more and more scientists’ attention. Liquid extraction as one of hydrometallurgy steps is a traditional method for the metal recovery. However, application of solvent extraction is not meet the green chemistry principles due to organic solvents. Aqueous two-phase systems based on water-soluble polymers are promising alternative for hazardous organic solvents. In this work the dependencies of Ce(III) and La(III) distribution coefficients from process time and the initial quaternary ammonium base concentration have been achieved. Also, based on the Ce(III) and La(III) extraction isotherms it has been shown that the metals initial concentrations are highly affects the distribution coefficients of studied metals. The possibility of aqueous two-phase system application as a solvent for quaternary ammonium salt for light REE (Ce(III) and La(III)) extraction from water solution has been shown.

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Study on the methanolysis of natural lecithin catalyzed by quaternary ammonium base resin

Reaction Kinetics Mechanisms and Catalysis ◽

10.1007/s11144-012-0471-z ◽

2012 ◽

Vol 107 (2) ◽

pp. 345-354 ◽

Cited By ~ 3

Author(s):

Hongya Li ◽

Xiaoli Zhang ◽

Tiantian Zhang ◽

Kunkun Dou ◽

Binxia Zhao

Keyword(s):

Quaternary Ammonium ◽

Quaternary Ammonium Base ◽

Base Resin

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Silicate Fiberglasses Modified with Quaternary Ammonium Base for Natural Gas Desulfurization

Industrial & Engineering Chemistry Research ◽

10.1021/acs.iecr.7b01389 ◽

2017 ◽

Vol 56 (37) ◽

pp. 10318-10328 ◽

Cited By ~ 4

Author(s):

Bair S. Bal’zhinimaev ◽

Evgenii V. Kovalyov ◽

Alexei P. Suknev ◽

Eugenii A. Paukshtis ◽

Dzhalil F. Khabibulin ◽

...

Keyword(s):

Natural Gas ◽

Quaternary Ammonium ◽

Quaternary Ammonium Base ◽

Natural Gas Desulfurization

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New and Uncommon Indole- and Imidazole-Alkylamines in Skins of Amphibians from Australia and Papua New Guinea

Zeitschrift für Naturforschung C ◽

10.1515/znc-1976-3-403 ◽

1976 ◽

Vol 31 (3-4) ◽

pp. 118-120 ◽

Cited By ~ 11

Author(s):

M. Roseghini ◽

R. Endean ◽

A. Temperilli

Keyword(s):

Papua New Guinea ◽

Quaternary Ammonium ◽

Aromatic Amines ◽

New Guinea ◽

Rich Source ◽

South American ◽

Amphibian Skin ◽

Quaternary Ammonium Base

Abstract Extracts of the skin of some amphibians from Australia and Papua New Guinea contained, in addition to the usual 5-hydroxyindolealkylamines and histamine: a. two new, hitherto unknown indolealkylamines, i.e . O-sulphate of bufotenidine and 2-(3-indolyl)ethyltrimethylammonium, a quaternary ammonium base of tryptamine. The rare O-sulphate of bufotenine was also present, the occurrence of which had previously been demonstrated only in the skin of some South American toads; b. a series of uncommon imidazolealkylamines, such as N′-acetylhistamine, N′-methyl-histamine, N′,N′-dimethylhistamine, spinaceamine and 6-methylspinaceamine. It appears evident that amphibian skin continues to be an exceptionally rich source of aromatic amines.

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