Now showing items 1-10 of 243
An investigation of new heterogeneous hydrotalcite-like catalysts for the cis-dihydroxylation of olefins.
The use of supported catalysts to essentially combine the positive traits offered by both homogeneous and heterogeneous catalysis has become a competitive field of research. In particular, hydrotalcite-like catalysts (HTIc) ...
Characterisation of SAPPI SAICCOR pulp mill's effluent.
SAPPI SAJCCOR, whose factory is situated south of Durban, South Africa, is one of the few paper and pulp mills that uses the acid sulphite process with calcium and magnesium bases to produce a high-grade cellulose pulp. ...
Production and high temperature treatment of syngas.
Gas cleaning is an essential step in many chemical processes. The reason for cleaning is to remove components that can damage equipment or inhibit further reactions. The treatment can include the removal of particulates, ...
Layered double hydroxides : synthesis and application in gene delivery to mammalian cells in culture.
Layered double hydroxides (LDHs) or hydrotalcite-like compounds (HTLcs) are classified as anionic clays in which their structure is based upon brucite and are represented by the following general chemical formula: [MII1-xMIII ...
Muthi compounds from indigenous Lauraceae and Rubiaceae species.
No abstract available.
The polycyclic aromatic hydrocarbon content and mutagenicity of the residue from cane burning and vehicle emissions.
Polycyclic (or polynuclear) aromatic hydrocarbons (PAHs) are environmental pollutants produced during the incomplete combustion of organic matter. Since many of these compounds have been shown to be mutagenic and/or ...
Characterisation and quantification of wood extractives and their impact on pitch.
The aims of this study were to characterise and quantify wood extractives in E. grandis and E. nitens and determine the impact of wood extractives on pitch formation. Initially a comparison was made with individual solvent ...
Copper(I), Palladium(II) and Platinum(II) complexes of the 2- diphenylphosphino-1,10-phenanthroline ligand.
Chapter 1 reviews the coordination behaviour of the 6-diphenylphosphino-2,2'-bipyridine, 6-anilino-2,2'-bipyridine, 2,2'-bipyridyl-6-one, 6-N-methylanilino-2,2'-bipyridine, 6-piperidyl-2,2'-bipyridine and 2-(phenylamino) ...
Ozone initiated oxidation of organic pollutants, m-xylene and 2-chloroethanol.
A variety of hazardous organic compounds are present in leachate from landfill sites that accept medical and industrial chemical waste. Most of these compounds find their way into nearby streams, rivers and dams, posing a ...
Reactions and reactivity of allylic and benzylic carbamates.
The purpose of this investigation was to study the effect of the carbamate group on the reactions and reactivity of substituted 1,1-diphenylmethane and a,ro-diphenyl allylic compounds. A series of carbamates were prepared ...