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DISSOLUTION KINETIC AND SOLVENT EXTRACTION OF ALUMINIUM FROM KAOLIN

CHAPTER ONE INTRODUCTION Kaolinite Kaolinite is one of the rare earth compounds that contain high concentration or percent of alumina and silica in the earth crust, and it has the chemical composition Al2Si2O5(OH)4. Rare earth (RE) compounds are “hi-tech” materials used in electronics automotive catalytic converter, glass/ceramic permanent magnets and nuclear energy. High demand/tight supply […]

PRODUCTION OF ETHANOL FROM CASSAVA PEELS USING Zymomonas mobilis and Saccharomyces cerevisiae

ABSTRACT The yield of bioethanol from cassava peels hydrolysed with Aspergillus niger and crude enzymes (amylase, cellulase and pectinase) was examined in this study. Cassava peels were pretreated by soaking and a combination of soaking and boiling which removes 67% of cyanide. After hydrolysis, Zymomonas mobilis and Saccharomyces cerevisiae were used to ferment the hydrolysates […]

BACTERIA AND FUNGI INVOLVED IN YOGURT PRODUCTION

ABSTRACT Yogurt sold at different manufacturer, in Ilorin Kwara State was taken to the laboratory and examined, different bacteria and fungi were found in all the yoghurt tested using conventional methods. The implications of these micro organisms were discussed.           INTRODUCTION AND LITRERATURE REVIEW Yogurt is a popular and healthy snacks […]

ASSESSMENT OF POTENTIALS OF WASTE TO WEALTH

Abstract   Municipal solid wastes re-use and recycling have multiple socioeconomic and environmental benefits that have not been adequately examined in Zaria, Kaduna State, Nigeria. The objectives of this research are to: examine the socio-economic and demographic characteristics of waste management entrepreneurs; identify the sources and destinations of recyclable municipal solid waste; analyse the quantity […]

ASSESSMENT OF OIL SPILLAGE AND ITS CONTROL IN THE OIL AND GAS INDUSTRY IN NIGERIA

ABSTRACT This project set out to examine the compensation of oil spill victims in the Nigerian oil industry. The compensation of these victims has become clumsy and dark in the wake of oil bunkering, pipeline vandalism, sabotage, since in the past, oil spill was as a result of the activities of the oil companies or […]

A NEW BLEND OF LUBRICANT OIL FROM VEGETABLE OIL

ABSTRACT   This thesis aimed at the production of biolubricant from vegetable oils. The first stage produced methyl ester of the oil and in the second stage; the methyl ester was transesterified with Trimethylolpropane (TMP) in a ratio of 3.5:1 at 1500C to produce the biolubricant. The pour points biolubricant and its blend were significantly […]

SPECTROPHOTOMETRIC DETERMINATION OF NIACIN, THIAMINE, GLIBENCLAMIDE, ERYTHROMYCIN AND PARA AMINO BENZO IC ACID USING 2, 3 – DICHLORO – 5, 6 – DICYANO – 1, 4 – BENZOQUINONE

ABSTRACT A simple and sensitive spectrophotometric method is described for the assay of the drugs; niacin, glibenclamide, erythromycin, thiamine and 4-aminobenzoic acid. The method is based on charge transfer complexation (CT) reaction of niacin, glibenclamide, erythromycin, thiamine and 4-aminobenzoic acid as n-electron donors with 2,3-dichloro-5,6-dicyno-1,4-benzoquinone(DDQ) as л-electron acceptor in methanol. Intensely coloured charge transfer complexes […]

SPECTROPHOTOMETRIC DETERMINATION OF PARACETAMOL USING ZIRCONIUM (IV) OXIDE AND AMMONIUM TRIOXOVANADATE (V)

ABSTRACT  A simple and sensitive spectrophotometric method for the determination of paracetamol was explored, using zirconium(IV) and vanadium(V) oxides. The method was based on the oxidation of paracetamol by zirconium(IV) and vanadium(V) in  alkaline and acidic media respectively. The stoichiometric studies indicated a mole-ratio of 1:1 for the reactions of paracetamol with both zirconium(IV) and […]

SYNTHESIS AND CHARACTERIZATION OF ALKYLATED ISOCYANATE DERIVATIVES OF [Pt2(µ-S)2(PPh3)4]

CHAPTER ONE  Introduction 1.1      Background of Study              Investigation of the chemistry of platinum and sulphur has attracted considerable attention in recent years due to the broad applications of the two elements and their compounds, in biological systems1, applied catalysis2,3 and to the chemistry of novel molecular systems4. Other main areas of application are in the design […]

SYNTHESIS AND CHARACTERIZATION OF ZEOLITE AND ITS APPLICATION IN ADSORPTION OF NICKEL FROM AQUEOUS SOLUTION

CHAPTER ONE Introduction Zeolites are porous crystalline alumino-silicates of regular skeleton structures formed by alternating silicon-oxygen and aluminum-oxygen tetrahedrons. Although only natural zeolites were initially used, synthetic zeolites, due to their well-tailored and highly-reproducible structures, have been used extensively as ion exchangers, adsorbents, separation materials and catalyst1.The negative charges in aluminum-oxygen tetrahedron, which are not rigidly fixed […]

SYNTHESIS AND CHARACTERIZATION OF ZINC OXIDE NANOWIRE

CHAPTER ONE INTRODUCTION 1.1 Background of the Research Nanoscience evolution and the advent of nanowire fabrication marked a new epoch in optoelectronics 1. Characteristic investigation for achieving efficient light absorption, charge separation transport and collection had culminated in the synthesis of both organic and inorganic semiconductor nanowires 2-3. The d-block transition elements of the periodic table are all […]

SYNTHESIS, CHARACTERIZATION AND SOLVENT EXTRACTION STUDIES OF 3,5-BIS[(2-HYDROXY-BENZYLIDENE)-AMINO]-BENZOIC ACID AND ITS Co(II) AND Ni(II) COMPLEXES

ABSTRACT In this study, a series of N-pyridin-3-yl substituted [phenylsulphonamido] acetamide has been synthesized. The reaction of phenylsulphonyl chloride with various amino acids in basic medium yielded phenylsulphonamido alkanoic acid which, on chlorination with thionyl chloride, gave acid chloride derivatives of phenylsulphonamido alkanoic acid in situ. The acid chloride derivatives on condensation with 3-aminopyridine gave corresponding acetamide in […]

SYNTHESIS, CHARACTERIZATION AND PHARMACOLOGICAL STUDIES OF 4-ACYLPYRAZOLONE COMPLEXES OF SOME d-BLOCK ELEMENTS

CHAPTER ONE 1.0       Introduction Investigation on 4-acyl-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (4-acylpyrazol-5-one) and its transition metal complexes has attracted significant attention because of their applications as extractants1, antipyretic2, analgesic3, antitubercular4, antimycobacterial5, antibacterial6, antifungal7, and antineoplastic8 drugs. 4-acylpyrazol-5-one, is an enolizable ligand with strong ligating ability. These ligands are synthesized by direct acylation at C – 4 of 3-methyl-1-phenyl-1H-pyrazol (4H)-5-one (PMP) […]

SYNTHESIS OF NHETEROARYL SUBSTITUTED

CHAPTER ONE 1.1       INTRODUCTION The basic sulphonamide group –SO2NH- occurs in various biological active compounds including antimicrobial drugs, antithyroid agents, antitumor antibiotics and inhibitors of carbonic anhydrase1,2.  Sulphonamides are widely used to treat microbial infection by inhibiting the growth of gram-negative and gram-positive bacteria, some protozoa and fungi3. Clinically, sulphonamides are used to treat several urinary […]

TANDEM AMINATION CATALYSIS IN THE SYNTHESIS OF DIAZAPHENOXAZINE COMPOUNDS OF PHARMACEUTICAL INTEREST

ABSTRACT The synthesis and characterization of five new linear diazaphenoxazine compounds is reported. The key intermediate, 3-chloro-1-9-diazaphenoxazine, was prepared via a base catalyzed reaction of 2-amino-3-hydroxypyridine with 2,3,5-trichloropyridine in aqueous 1, 4-dioxane. Five 3-amino derivatives of the key intermediate were prepared via Buchwald – Hartwigamination coupling reaction between 3-chloro-1,9-diazaphenoxazine and various heterocyclic amines, under the […]

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