Download or read book Phosphate Minerals written by J.O. Nriagu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: The literature on the geology, chemistry, and biochemistry of phosphorus generally takes its mineralogy for granted. The in cidental information on phosphate minerals given in these texts is often obsolescent and inaccurate. The few mineralogical texts that have dealt comprehensively with the phosphate minerals have now become outdated, and typically present the essential information in a manner unsuitable for nongeological readers. This volume is intended as a ready reference for workers who require good basic information on phosphate minerals or their synthetic equivalents. The topics covered should appeal to geologists and geochemists, lithologists, environmental scientists and engineers, chemists and biochemists who have any interest in the intricate world of phosphorus. The hard tissues of many vertebrates and the many pathological calcifications consist mostly of phosphate minerals. The precipita tion of these compounds also plays a major role in the ecological cycling of phosphorus, and occasionally even dominates the behavior of many trace metals in many geochemical and biolog ical systems. Indeed, many pegmatitic phosphate minerals have acquired some notoriety because of the rarer trace metals which they tend to accumulate. With the commercialization of phosphate fertilizers since the early part of the 19th century, phosphate minerals have assumed an important role in industrial chemistry and agriculture. Clearly, the study of phosphate minerals is important from the economic, agricultural, environmental and (human and animal) health viewpoint.
Download or read book Phosphates written by Matthew J. Kohn and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 48 of Reviews in Mineralogy and Geochemistry represents the work of many authors whose research illustrates how the unique chemical and physical behavior of phosphate minerals permits a wide range of applications that encompasses phosphate mineralogy, petrology, biomineralization, geochronology, and materials science. While diverse, these fields are all linked structurally, crystal-chemically and geochemically. As geoscientists turn their attention to the intersection of the biological, geological, and material science realms, there is no group of compounds more germane than the phosphates.
Download or read book Cooccurrence of Fe Fe Ca and Ca phosphate Minerals in Concretions Within the Monterey Formation written by David Z. Piper and published by . This book was released on 1993 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphatic concretions occur within diatomite in the upper part of the Miocene Monterey Formation near Lompoc, Calif. Absence of disruption of fine laminar bedding in the associated sediment by the concretions shows that they formed after complete compaction of the enclosing sediment. The concretions exhibit a strongly concentric color, chemical, and mineralogic zonation. Many of them are composed of a nucleus in which vivianite is the dominant mineral. Amorphous ferric phosphate, mitridatite, and francolite are the dominant phosphatic phases in successive layers toward the surface of the concretions. Cd and As contents increase tenfold from the nucleus outward, reaching a maximum of 2,000 ppm, whereas Ni content, with a maximum of 720 ppm, and Co content show the opposite trend. This mineralogy and elemental composition favor accretion under conditions of continuously increasing Eh and pH, during uplift into the fresh-ground-water zone of the terrestrial environment. Shale-normalized rare-earth-element patterns, however, suggest a marine source for the elements biogenic debris consisting of opal-A, organic matter, and carbonates of the enclosing sediment.
Download or read book Liberation and Concentration of Phosphate Minerals by Attrition Grinding and Sizing written by Joseph W. Town and published by . This book was released on 1967 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phosphate Minerals written by Jerome O. Nriagu and published by Springer Verlag. This book was released on 1984 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Availability of Mineral Phosphates for Plant Nutrition written by William Leonidas Burlison and published by . This book was released on 1915 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flotation of Carbonate Minerals from Unaltered Phosphate Ores of the Phosphoria Formation written by Albert R. Rule and published by . This book was released on 1974 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Strategic Minerals Inventory Summary Report Phosphate written by Ulrich H. Krauss and published by . This book was released on 1984 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Minerals Availability Commodity Directory on Phosphate written by Dale R. Spangenberg and published by . This book was released on 1983 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book To Promote the Development and Conservation of Phosphate Resources written by United States. Congress. Senate. Committee on Interior and Insular Affairs. Subcommittee on Minerals, Materials, and Fuels and published by . This book was released on 1957 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considers legislation to remove acreage limitations on phosphate mine leases on public lands.
Download or read book Beneficiation of Phosphate Ore written by Kawatra, S. Komar and published by Society for Mining, Metallurgy, and Exploration. This book was released on 2013-12-16 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beneficiation of Phosphate Ore examines various methods for processing phosphate rock, an important mineral commodity used in the production of phosphoric acid. The majority of phosphoric acid is produced by the wet process, in which phosphate rock is reacted with sulfuric acid to produce phosphoric acid and gypsum (calcium sulfate dihydrate). This wet process demands a phosphate rock feed that meets certain specifications to produce phosphoric acid efficiently and economically. Beneficiation of Phosphate Ore thoroughly explains the methods used in beneficiation of different types of phosphate ores for use in the wet process. The mineralogical properties of the two major types of phosphate deposits, sedimentary and igneous, are described along with the processing methods. The benefits and disadvantages of each process are discussed in detail.
Download or read book Phosphate and Mineral Metabolism written by Shaul Massry and published by Springer Science & Business Media. This book was released on 2013-03-13 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are pleased to present to our readers the Proceedings of the Sixth International Workshop on Phosphate and Other Minerals which was held in Verona, Italy, during June 24-26, 1983. It was hosted by Professor Giuseppe Maschio, Professor of Medicine and Chief, Department of Nephrology at the University of Verona. The Sixth Workshop maintained the tradition of the previous ones. It provided a unique and outstanding opportunity for close interaction between scientist involved in the research of the overall field of Mineral Metabolism. The current Workshop was attended by 250 scientists from 15 countries including Austria, Canada, Denmark, England, France, Germany,Holland, Israel, Italy, Japan, Spain, Sweden,Switzerland, and the United States of America. The topics discussed included the renal handling of phosphate, transport of other minerals, intestinal absorption of calcium and phosphate and phosphate homeostasis in health and disease. Two symposia dealing with the recent developments of the interactions between minerals, parathyroid hormone, and blood pressure and between minerals and myopathies were included. In addition to the 15 State-of-the-Art Lectures, there were 43 oral and 63 poster presentations selected from over 200 abstracts sub mitted to the Program Committee. The Seventh International Workshop on Phosphate and Other Minerals will be held during September, 1985, in Marseille, France. It will be hosted by Professor Michel almer, Chief of the Department of Nephrology at the University of Marseille. The theme of this coming Workshop will focus on the pathophysiology of phosphate homeostasis and the metabolism of other minerals.
Download or read book The Florida Phosphate Industry written by Arch Fredric Blakey and published by Harvard University Press. This book was released on 1973 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: "For every problem there is a solution--simple, neat, and wrong." H. L. Mencken made this observation years ago, and it is quoted at the beginning of Fred Blakey's study of Florida's phosphate industry. Few people would disagree that there is a real environmental crisis facing the world today. The cause is unrestrained growth of the population, of economies, and of the exploitation of natural resources. The author points out that this viewpoint is foreign to a people who have equated growth with progress, and bigness with goodness. Only recently have Americans conceded that their resources are not inexhaustible. Blakey tells us that we have been bombarded with solutions to a problem that professionals view as not yet fully understood nor adequately defined. Americans face the problem not only of pollution, but of management, of values, of their very way of life. If the earth is to provide the materials for the survival of man's society, then a prudent society must provide for an intimate understanding of the earth. Phosphorus, the topic of this study, is an element necessary for all forms of life. Long before carbon, nitrogen, or oxygen supplies become critically short, the supply of phosphorus will be exhausted. When this happens, Blakey assures us, life will end, and he demonstrates that we are losing ever-increasing amounts of this vital element every year. This work presents a microscopic view of the ecological problems and prospects in the conservation and use of the mineral. Specifically, it is a history of the Florida phosphate industry. If the record of the Florida phosphate industry is any guide, then ecological disaster need not occur, but enlightened use of phosphorus and all other natural resources would seem to be imperative. The author tells us it is necessary to redefine some of our traditional priorities, beliefs, and values. Failure to do this indicates a willingness to continue to accept solutions that are "simple, neat--and wrong."
Download or read book The Phosphate Deposits of Florida written by George Charlton Matson and published by . This book was released on 1915 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phosphates a Case Study of a Valuable Depleting Mineral in America written by United States. General Accounting Office and published by . This book was released on 1979 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phosphate Rock Availability world written by Richard J. Fantel and published by . This book was released on 1984 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mineral Industry of the British Empire and Foreign Countries written by Great Britain. Imperial Mineral Resources Bureau and published by . This book was released on 1921 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
