Evaluation of Swat kaolin deposits of Pakistan for industrial uses
Source abstract
Abstract
The Swat kaolin deposits are characterized and evaluated for their potential as industrial raw materials. Their particle size, colour measurement, viscosity, plastic limits, liquid limits, drying, firing shrinkage, water absorption, oil absorption, pH, water soluble matter, moisture and bulk density are tested for <63, <10, <5 and <2 μm size fractions. Due to low plasticity index and high Fe2O3, TiO2 and CaO contents, the “water-washed” <63-μm fraction of kaolin is unsuitable for ceramic use. The yellowness of this fraction, 1.3–9.8%, can be reduced by 20.4–61.3%, by chemical bleaching. The <2-μm fraction can be used for high-solids formulation for publication-grade paper and medium-finish lower cost enamels. The <5-μm fraction is useable in paper filling. The <10-μm fraction is suitable for the ceramics, paint, plastic and rubber-filler industries.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Clay minerals and soil interactions · Recycling and utilization of industrial and municipal waste in materials production · Iron oxide chemistry and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
Show source-provided references
1. Mineralogy and petrology of a spinel lherzolite from Bar Bandai Swat District, Pakistan
2. Garnets from the Upper Swat Hornblendic Group, Swat District, Pakistan10.1180/minmag.1975.040.309.07 ↗
3. Petrology of the Taghma area, Swat District, N.W.F.P., Pakistan
4. A plasticity chart as an aid to the identification and assessment of industrial minerals10.1180/claymin.1971.009.1.01 ↗
5. Kaolin
6. World Kaolins: genesis, exploitation and application
7. The diverse industrial applications of kaolin
8. Influence of mineral impurities on the properties of kaolin and its thermally treated products10.1016/S0169-1317(01)00083-7 ↗
9. Improvement of iron leaching in clays: optimizing processing parameters in sodium dithionite reduction10.1021/i260036a017 ↗
10. Kaolin: a review of production and processing
11. Dawson, A.L., 1991. An investigation into viscosity, mineralogy and particle size distribution in kaolin mineral suspensions. MSc Dissertation, Leicester Univ., UK.
12. Mineralogy of Swat kaolinite
13. Ceramic properties of Swat clay: Part I. Physical characteristics
14. Ceramic properties of Swat clay: Part II. Chemical characteristics
15. Genesis of clayey deposits and their exploration: Focusing on some clay deposits in Pakistan
16. Petrology and geochemistry of the western part of Kalam-Dir igneous complex, Kohistan Arc, northern Pakistan
17. Highley · 1984 · vol. 26
18. Hussain, I., 1991. Petrology and geochemistry of the southern amphibolite belt rocks from Mahak and surrounding area, north Pakistan. Unpub. M.Phil. Thesis, Univ. Peshawar, Pakistan.
19. Petrography of the amphibolites of Swat and Kohistan
20. Kaolins: their properties and uses10.1098/rsta.1984.0037 ↗
21. Kyotani · 1967
22. 2002
23. Kaolinitic material from Romana (north-west Sardinia, Italy) and their ceramic properties10.1016/S0169-1317(97)00004-5 ↗
24. A geological reconnaissance of the region between the Lower Swat and Indus rivers of Pakistan
25. Moore · 1965 · 51
26. Geology of china clay deposits, Shah Dheri (Swat) N.W.F.P. Pakistan
27. The shearing behaviour of clays10.1016/0169-1317(89)90004-5 ↗
28. Diagnostic tests for evaluation of kaolin physical properties
29. Murray · 1984 · vol. 485
30. Clays
31. Kaolins, kaolins and kaolins
32. Traditional and new applications for kaolin, smectite, and palygorskite: a general overview10.1016/S0169-1317(00)00016-8 ↗
33. Murray, H.H., 2003. Clays in industry, In: Dominguez, E.A., Mas, G.R., Cravero, F. (Eds.), A Clay Odyssey, Elsevier Science Publishers, Amsterdam, pp.3–14.10.1016/B978-044450945-1/50090-7 ↗
34. Particle size and shape in the Georgia kaolins—II10.1346/CCMN.1973.0210516 ↗
35. Kaolin: processing, properties and applications10.1016/0169-1317(91)90001-P ↗
36. Plasticity of brick clays: comparison of several empirical tests and correlation with mineralogical composition and particle size distribution
37. Plasticity
38. Siddiqui, M.A., 2002. Geology and industrial mineralogy of kaolin deposits, Swat District, Pakistan. PhD thesis, University of the Punjab, Pakistan.
39. Mineralogy of the Swat kaolin deposits, Pakistan
40. Geology of Kohistan and adjoining Eurasian and adjoining Eurasian and Indo-Pakistan continents, Pakistan
41. Toro, L., Maravini, A.M., Paponetti, B., Passariello, B., 1990. Processo per la rimozione del ferro da concentrati di caoline, quarzo ed altri materiali di interesse Indust.e.Italian Patent. 21707 A/90.
42. Characterization of Portuguese kaolins for the paper industry: beneficiation through new delamination techniques10.1016/0169-1317(91)90005-T ↗
43. Status of superconducting magnetic separation in the minerals industry
44. Contrasting metamorphic P–T–time paths of the Kohistan granulites and tectonics of the Western Himalayas10.1144/gsjgs.150.5.0843 ↗
45. Beneficiation of kaolin clay by froth flotation using hydroxamate collectors10.1016/0892-6875(92)90225-X ↗