This book includes 12 papers from around the world on topics related to physical separation and enrichment in mineral processing. Physical separation is commonly used in the mineral industry to separate valuable minerals from gangues using differences in their physical properties. Physical separation methods have several advantages over other mineral processing techniques due to their high efficiency, low capital and operating costs, no additional chemicals required, and consequently, lower environmental hazard. They can be applied to the ores from mines or tailinsg, or in the recycling stage for scavenging the desired elements.

Inorganic Chemistry: A Concise Text Inorganic Chemistry is intended to provide a concise text-book of inorganic chemistry at a standard intermediate between that required for Advanced Level in schools and honors degree courses. The book is organized into two parts. Part I provides the reader with a background of basic principles sufficient to promote a rational understanding of the chemistry of the elements, including simple ionic crystal structures and the shapes of molecules. It concludes with a chapter describing the general methods of extraction and purification of metals. Part II aims to present a reasonable selection of the more important properties of the elements and their compounds. Every effort has been made to include up-to-date factual material, for example recent developments in the chemistry of the noble gases are described in the final chapter of the book. Wherever possible, effort is made to interpret and explain the descriptive chemistry in the light of modern physical concepts. In this way, the reader will not only acquire a useful factual basis of the subject but will also develop an appreciation of the rational nature of modern inorganic chemistry.

New Generation Green Solvents for Separation and Preconcentration of Organic and Inorganic Species is designed to help researchers and students understand the production and application of new generation green solvents in separation- and preconcentration-based analytical methods. Beginning with the historical background and milestones in the development of analytical instrumentation, the book goes on to give a detailed overview of the most up-to-date uses of green solvents in sample preparation. Using a wealth of examples, it compares old and new extraction procedures and explores the many applications of new generation green solvents. Practical, easy-to-follow experiments are used to illustrate the key concepts. This practical guide helps to promote the use of safer, more sustainable solvents in analytical chemistry and beyond for environmental scientists, researchers in pharmaceutical and biotech industries, and students in analytical chemistry. - Covers the basic analytical theory essential for understanding extraction- and microextraction-based separation and preconcentration methods - Explains combination use of new generation solvents with various detection systems, including UV-VIS, ICP-MS, HPLC, LC-MS, GC-MS, and LC-MS/MS - Emphasizes trace chemical component separation, preconcentration and analysis

Separation science plays a critical role in maintaining our standard of living and quality of life. Many industrial processes and general necessities such as chemicals, medicines, clean water, safe food, and energy sources rely on chemical separations. However, the process of chemical separations is often overlooked during product development and this has led to inefficiency, unnecessary waste, and lack of consensus among chemists and engineers. A reevaluation of system design, establishment of standards, and an increased focus on the advancement of separation science are imperative in supporting increased efficiency, continued U.S. manufacturing competitiveness, and public welfare. A Research Agenda for Transforming Separation Science explores developments in the industry since the 1987 National Academies report, Separation and Purification: Critical Needs and Opportunities. Many needs stated in the original report remain today, in addition to a variety of new challenges due to improved detection limits, advances in medicine, and a recent emphasis on sustainability and environmental stewardship. This report examines emerging chemical separation technologies, relevant developments in intersecting disciplines, and gaps in existing research, and provides recommendations for the application of improved separation science technologies and processes. This research serves as a foundation for transforming separation science, which could reduce global energy use, improve human and environmental health, and advance more efficient practices in various industries.

Trace Analysis, Volume 2 is devoted to critical discussions of selected topics in organic and inorganic analytical chemistry including instrumentation, techniques, and applications to the detection, identification, and quantitation of trace quantities of substances in a large variety of sample materials. The volume presents expositions of selected topics on trace analysis such as vitamin analysis in foods and tissues; liquid chromatography - mass spectrometry with emphasis on approaches to interfacing; approaches to the isolation and concentration of trace organics from aqueous samples; and the advantages of unmodified silica gel for the chromatographic separation of polar substances. The book will be highly useful to both organic and inorganic chemists.