Analysis Of Properties Of Kaolin Deposits
(A Case Of Studies Of Kpankorogi And Ijero-Ekiti)
Complete Analysis Of Properties Of Kaolin Deposits Project Materials (Chapters 1 to 5):
This study considered the mineralogical, elemental composition in form oxides and engineering properties such as particle size, specific gravity, bulk density; water content and atterberg limits of two kaolin deposits in Kpankorogi in Edu Local Government of Kwara State and in Ijero-Ekiti in Ijero-Ekiti Local Government Area, Ekiti State.This is with a view to assessing their potentials for Various industrial applications. The analyses includes X-Ray Diffraction (XRD and X-Ray Fluorescence(XRF). It was observed that the kaolin sample from Kpankorogi is dominated by Quartz and the one from Ijero- ekiti by Orthoclase. The result of the chemical analysis indicates the presences of SiO2, Al2O3, Fe2O¬3, TiO2, MnO, CaO, MgO, K2O, Na2O, CuO, ZmO, Cr2O5, V2O5 and Sc2O3. The X RD In particular, shows that Kpankorogi kaolin contains Quartz and Kaolinite while Ijero- Ekiti contains in addition to kaolinite,s orthoclase and Muscovite. Considering the possible applications of the two kaolin deposits, it was observed they do not meet the required standards completely in all instances.
Title Page
Certification
Dedication
Acknowledgement
Abstract
Table of Content
List of Tables
List of Figures
CHAPTER ONE
1.0 Introduction 1
1.1 Aim and Objectives of the Study 2
1.2 Scope and Limitation of the Study 3
1.3 Research Justification 3
1.4 Problems Statement 3
CHAPTER TWO
2.0 Literature Review 4
2.1 Historical Background of the Study 4
2.2 Properties of Kaolin 5
2.3 Uses of Kaolin 6
CHAPTER THREE
3.0 Materials and Methods 8
3.1 Description of the Study Areas 8
3.2 Method of Samples Collection 8
3.3 Laboratory Analyses 12
3.3.1 Moisture Content 12
3.3.2 Bulk Density Determination 13
3.3.3 Specific Gravity Determination 13
3.3.4 Grain Size Analyses 15
3.3.5 Atterberg Limit 17
3.3.6.1 Liquid Limit 17
3.3.6.2 Plastic Limit 18
3.3.6.3 Shrinkage Limit 19
3.3.7 X.R.D. Analysis 20
3.3.8 X.R.F. Analysis 22
CHAPTER FOUR
4.0 Results And Discussion 23
4.1 Properties of Kpankorogi and Ijere-Ekiti Kaolin Deposits 23
4.2 Water Content Distribution 23
4.2 Bulk Density 24
4.3 Specific Gravity 24
4.4 Atterberg Limits 24
4.5 Sieves Analyses 25
4.1.6 X-ray Diffraction 26
4.6 X-ray Fluorescence 28
CHAPTER FIVE
5.0 Conclusion and Recommendation 31
5.1 Conclusion 31
5.2 Recommendation 31
References 33
Introduction
Kaolin is a clay rock and part of the group of industrial minerals with the chemical composition (Al2Si205 (OH)4.
It is a layered silicate mineral with one tetrahedral sheet linked through oxygen atoms to one octahedral sheet alumina i.e. structurally composed of silicate sheet (Si2O¬5) bonded to aluminum oxide/hydroxide layer Al2 (OH)4 called gibbsite layers and repeating layer of the mineral are hydrogen bonded together. (Rost, 1992; Bish, 1993; Klein and Kuribut, 1993; Slivka, 2002).
Kaolin is a plastic raw material, particular consisting of clay mineral kaolinite. In systematic mineralogy, Kaolin ranks among phyllosilicates, which are stratified clay minerals formed by a network of tetrahedral and octahedral layers. Phyllosillicates are classified into the main groups according to the type of layers, inter-layer contents, charge of the layers and chemical formulas. Besides kaolinite groups, serpentine, halloysite, pyrofylite, mica and montmorillonite groups also ranks among phylllosillicates. Group of kaolinites includes di-octahedral mineral with two layers and one silica (SiO4) tetrahedral layer and one aluminum (Al2(OH)4) octahedral layer. The layers are bondecd together by sharing oxygen anion between Al and Si together, these two layers are called platelets (Pauk,et al.,1962; Stejskal, 1971., Duda et al., and Hurlbut, 1993).
Kaolinite shares the same chemistry as the mineral halloysite, dickeite and necrite. The four minerals are polymorphs as they have the same chemistry but different structures. All the minerals were derived from chemical alteration of aluminum rich silicate minerals, such as feldspars. However, they could be found as sedimentary deposits as well as hydrothermal alteration product of rocks containing a high of alumino-silicate minerals.
Kaolin is formed under acidic conditions through weathering or hydrothermal change of feldspars, and to a lower extent also other weathered kaolin deposits, kaolin clay or may be a compound of kaolinite, sandstones and olitic ironstones, and less frequently also of pegmatite and hydrothermal deposit. The most significant kaolin deposits were formed through intensive weathering of rock rich in feldspars (granite, arkoses, certain types of ortho-gneisses and misgmatites).
Millions years ago, original material was decomposed by weathering, giving rise to kaolin and silica combined with higher or lower amounts of admixtures.(Bernard, el al; 1992).
1.1 Aim and Objectives of the Study
Aim of this study is to determine the suitable industrial application of kaolin from location investigated.
To achieve the above stated aim, the following objective will be carried out:
i. determination of mineralogical composition of the kaolin deposits
ii determination of the chemical/oxide composition of the deposits
iii determination of the physical and engineering properties of the kaolin deposits.
1.2 Scope and Limitation of the Study
The purpose of this project covers two deposits, the Kpankorogi and the Ijero-Ekiti kaolin deposits. Samples were collected from each of the deposits for oxide analyses, mineralogical analyses as well as the determination of the engineering and physical properties. The numbers of samples are limited due to cost constraint. A sample is collected from each of the deposits for both the oxides and mineralogical analyses. This particular study does not include reserve estimation, but this is recommended for future workers.
1.3 Research Justification
Since Kaolin is a widely used industrial material, determination of its chemical composition, mineralogical contents and engineering properties are very important. It will enable the suitable industrial and economic applications of Kaolin.
1.4 Problem Statement
Difficulty where encounter in this project research, during the samples collection. During the collection of samples digging where involved to get the appropriate samples, which is very tedious to dig.
More so, during the analyses of the of engineering properties of the samples in which problems occur by which some engineering properties was not able to carried out which it as been refer for the future work.
The introduction of Analysis Of Properties Of Kaolin Deposits should start with the relevant background information of the study, clearly define the specific problem that it addresses, outline the main object, discuss the scope and any limitation that may affect the outcome of your findings
Literature Review of Analysis Of Properties Of Kaolin Deposits should start with an overview of existing research, theoretical framework and identify any gaps in the existing literature and explain how it will address the gaps
Methodology of Analysis Of Properties Of Kaolin Deposits should describe the overall design of your project, detail the methods and tools used to collect data explain the techniques used to analyse the collected data and discuss any ethical issues related to your project
Results should include presentation of findings and interpretation of results
The discussion section of Analysis Of Properties Of Kaolin Deposits should Interpret the implications of your findings, address any limitations of your study and discuss the broader implications of your findings
The conclusion of Analysis Of Properties Of Kaolin Deposits should include summarize the main results and conclusions of your project, provide recommendations based on your findings and offer any concluding remarks on the project.
References should List all the sources cited in Analysis Of Properties Of Kaolin Deposits project by following the required citation style (e.g., APA, MLA, Chicago).
The appendices section should Include any additional materials that support your project (Analysis Of Properties Of Kaolin Deposits) but are too detailed for the main chapters such as raw data, detailed calculations etc.