Author
Haydn H. Murray
Bio: Haydn H. Murray is an academic researcher from Indiana University. The author has contributed to research in topics: Clay minerals & Kaolinite. The author has an hindex of 26, co-authored 60 publications receiving 3347 citations.
Topics: Clay minerals, Kaolinite, Halloysite, Montmorillonite, Bentonite
Papers published on a yearly basis
Papers
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TL;DR: Clays have been and continue to be one of the more important industrial minerals and are widely utilized in many facets of our society as mentioned in this paper.Clays and clay minerals are used in geology, agriculture, construction, engineering, process industries, and environmental applications.
1,223 citations
TL;DR: The clay minerals kaolin, smectite and palygorskite-sepiolite are among the world's most important and useful industrial minerals as discussed by the authors and they are important in a number of geological applications such as stratigraphic correlations, indicators of environments of deposition and temperature for generation of hydrocarbons.
Abstract: The clay minerals kaolin, smectite and palygorskite-sepiolite are among the world's most important and useful industrial minerals. Clay minerals are important in a number of geological applications such as stratigraphic correlations, indicators of environments of deposition and temperature for generation of hydrocarbons. In agriculture, the clay minerals are a major component of soils and determinant of soil properties. The clay minerals are important in construction where they are a major constituent in brick and tile. The physical and chemical properties of the clay minerals determine their utilization in the process industries. What about tomorrow? Processing techniques will be improved and new equipment will be available so that improved clay mineral products will be available. Pillared clays and nanocomposites will become important. Further developments in organoclay technology and surface treatments will provide new usages for these special clays. Tomorrow will see further growth and utilization of the clay minerals.
342 citations
TL;DR: A discussion of the applications of clay materials is organized as follows: kaolins; smectites; palygorskite (attapulgite) and sepiolite; and miscellaneous as discussed by the authors.
313 citations
TL;DR: The main commercially important kaolin resources at the present time are the primary deposits of Cornwall in England and the sedimentary deposits in Georgia and South Carolina in the USA as discussed by the authors, which can be classified into two types, primary (residual) and secondary (sedimentary).
173 citations
TL;DR: In the 21st century the emphasis in exploration will be in the developing nations, and the level of sophistication in exploration methods will increase as discussed by the authors, and the trends are towards finer particle size, higher purity and surface modification to both permit their more specialized application in industry and to resist the challenges from other natural and synthetic minerals.
132 citations
Cited by
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TL;DR: The present review mainly focuses on NMOs' preparation, their physicochemical properties, adsorption characteristics and mechanism, as well as their application in heavy metal removal.
1,828 citations
TL;DR: A detailed review compiles thorough literature of current research over the last ten years (2006-2016) and highlights the key findings of adsorption studies that use clay minerals as an adsorbent.
1,329 citations
University of Alberta1, ExxonMobil2, University of Houston3, Louisiana State University4, Queen's University5, University of Pretoria6, University of Nebraska–Lincoln7, University of Texas at Austin8, Dalhousie University9, New Mexico State University10, University of Texas at Arlington11, University of South Carolina12, University of Toronto13, Colorado School of Mines14, Chevron Corporation15, University of Saskatchewan16, University of Fribourg17, Durham University18, Royal Dutch Shell19
TL;DR: In this paper, a model-independent framework of genetic units and bounding surfaces for sequence stratigraphy has been proposed, based on the interplay of accommodation and sedimentation (i.e., forced regressive, lowstand and highstand normal regressive), which are bounded by sequence stratigraphic surfaces.
1,255 citations
TL;DR: Clays have been and continue to be one of the more important industrial minerals and are widely utilized in many facets of our society as mentioned in this paper.Clays and clay minerals are used in geology, agriculture, construction, engineering, process industries, and environmental applications.
1,223 citations
TL;DR: Halloysite clay minerals are ubiquitous in soils and weathered rocks where they occur in a variety of particle shapes and hydration states as discussed by the authors and diversity also characterizes their chemical composition, cation exchange capacity and potassium selectivity.
Abstract: Halloysite clay minerals are ubiquitous in soils and weathered rocks where they occur in a variety of particle shapes and hydration states. Diversity also characterizes their chemical composition, cation exchange capacity and potassium selectivity. This review summarizes the extensive but scattered literature on halloysite, from its natural occurrence, through its crystal structure, chemical and morphological diversity, to its reactivity toward organic compounds, ions and salts, involving the various methods of differentiating halloysite from kaolinite. No unique test seems to be ideal to distinguish these 1:1 clay minerals, especially in soils. The occurrence of 2:1 phyllosilicate contaminants appears, so far, to provide the best explanation for the high charge and potassium selectivity of halloysite. Yet, hydration properties of the mineral probably play a major role in ion sorption. Clear trends seem to relate particle morphology and structural Fe. However, future work is required to understand the possible mechanisms linking chemical, morphological, hydration and charge properties of halloysite.
1,156 citations