Coal Flotation And Fine Coal Utilization
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Coal Flotation And Fine Coal Utilization
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Author : J. Laskowski
language : en
Publisher: Gulf Professional Publishing
Release Date : 2001-07-04
Coal Flotation And Fine Coal Utilization written by J. Laskowski and has been published by Gulf Professional Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-07-04 with Technology & Engineering categories.
Full text e-book available as part of the Elsevier ScienceDirect Earth and Planetary Sciences subject collection.
Coal Flotation And Fine Coal Utilization
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Author : J. Laskowski
language : en
Publisher: Elsevier Science
Release Date : 2001
Coal Flotation And Fine Coal Utilization written by J. Laskowski and has been published by Elsevier Science this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Technology & Engineering categories.
To stay profitable while complying with environmental regulations requires that the coal industry not only improve fine coal recovery but also finds better ways for its utilization. This is the first monograph on the processing of fine coal which recognizes that all unit operations that handle fine coal depend on coal surface properties, and which in one single volume provides a comprehensive introduction to coal surface chemistry, using it rigorously in treating coal flotation fundamentals and engineering, fine coal manipulation, pelletization and briquetting, and coal-water slurries. Readers involved in mineral processing, chemical engineering, mining and metallurgical engineering; technical personnel working for reagent suppliers; and scientists researching the field of coal surface chemistry, flotation and fine coal utilization will find this volume of great interest.
Coal Flotation And Fine Coal Utilisation
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Author :
language : en
Publisher:
Release Date : 2003
Coal Flotation And Fine Coal Utilisation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Coal Flotation And Fine Coal Utilization
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Author : J. Laskowski
language : en
Publisher: Elsevier
Release Date : 2001-07-04
Coal Flotation And Fine Coal Utilization written by J. Laskowski and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-07-04 with Science categories.
To stay profitable while complying with environmental regulations requires that the coal industry not only improve fine coal recovery but also finds better ways for its utilization. This is the first monograph on the processing of fine coal which recognizes that all unit operations that handle fine coal depend on coal surface properties, and which in one single volume provides a comprehensive introduction to coal surface chemistry, using it rigorously in treating coal flotation fundamentals and engineering, fine coal manipulation, pelletization and briquetting, and coal-water slurries. Readers involved in mineral processing, chemical engineering, mining and metallurgical engineering; technical personnel working for reagent suppliers; and scientists researching the field of coal surface chemistry, flotation and fine coal utilization will find this volume of great interest.
Flotation Processes For Cleaning Fine Coal
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Author : Harry Fagan Yancey
language : en
Publisher:
Release Date : 1933
Flotation Processes For Cleaning Fine Coal written by Harry Fagan Yancey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1933 with Coal washing categories.
Microbubble Flotation Of Fine Coal Final Report
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Author :
language : en
Publisher:
Release Date : 1984
Microbubble Flotation Of Fine Coal Final Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.
Fine coal flotation has been a longstanding problem in industry. Coal particles below approximately 38 microns in diameter are difficult to float, and the process consumes large amounts of reagents. Hydrodynamic analyses have shown, however, that the use of air bubbles smaller than those that are generated in conventional flotation machines (0.2 to 3 mm diameter) can improve the flotation rate and, hence, the coal recovery. Theoretically, a tenfold reduction in average bubble size should result in a thousandfold increase in the flotation rate constant at a given gas flow rate. Therefore, work has been done to use microbubbles less than 100 microns in diameter for the flotation of fine coal particles. Seven different U.S. coal samples have been tested in the present work. The feed size varies from -100 mesh to -500 mesh. Flotation kinetics tests have been conducted on some of these coal samples as a function of bubble size at a constant gas flow rate. The results show a drastic improvement in flotation rate with the use of microbubbles, which may account for the improved recoveries obtained with the microbubble flotation technique. In addition, test results obtained with ultrafine coal samples ( -20 microns) indicate that the microbubble flotation process is more selective than conventional flotation. This improved selectivity has been explained tentatively by the increased bubble loading and the reduced turbulence around the microbubbles. Various techniques have been employed to further enhance the selectivity of the process by minimizing the ash entrapment problem. To better understand the mechanisms of microbubble flotation, basic information regarding surface tension, contact angle, viscosity, streaming currents of microbubbles, electrophoretic mobilities of coal and mineral matter, and stability of microbubble suspensions has been obtained. 50 references, 42 figures, 9 tables.
Lettres Catholiques D Un Homme De La Cour M De La Coste Ci Devant Cur De Saint Pierre Des Arcis Et Pr Sentement Chanoine De Notre Dame De Paris Appelant De La Constitution Unigenitus 11 Novembre 1718 28 Mai 1719
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Author :
language : en
Publisher:
Release Date : 1719
Lettres Catholiques D Un Homme De La Cour M De La Coste Ci Devant Cur De Saint Pierre Des Arcis Et Pr Sentement Chanoine De Notre Dame De Paris Appelant De La Constitution Unigenitus 11 Novembre 1718 28 Mai 1719 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1719 with categories.
An Overview Of U S Federal Coal Preparation Research
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Author :
language : en
Publisher:
Release Date : 1994
An Overview Of U S Federal Coal Preparation Research written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Coal categories.
An Advanced Control System For Fine Coal Flotation
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Author :
language : en
Publisher:
Release Date : 1999
An Advanced Control System For Fine Coal Flotation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Engineering Development Of Advanced Physical Fine Coal Cleaning Technologies
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Author :
language : en
Publisher:
Release Date : 1990
Engineering Development Of Advanced Physical Fine Coal Cleaning Technologies written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
An engineering development project was prepared to build upon the basic research effort conducted under a solicitation for research into Fine Coal Surface Control. The engineering development project is intended to use general plant design knowledge and conceptualize a plant to utilize advanced froth flotation technology to process coal and produce a product having maximum practical pyritic sulfur reduction consistent with maximum practical BTU recovery. This is being accomplished by utilization the basic research data on the surface properties of coal, mineral matter and pyrite obtained from the Coal Surface Control for Advanced Fine Coal Flotation Project, to develop this conceptual flowsheet. The conceptual flowsheet must be examined to identify critical areas that need additional design data. This data will then be developed using batch and semi-continuous bench scale testing. In addition to actual bench scale testing other unit operations from other industries processing fine material will be reviewed for potential application and incorporated into the design if appropriate. 31 figs., 22 tabs.