||TANTALUM & TUNGSTEN||ELECTRODES
|50%-50% JOINT OWNERSHIP WITH VANADIUMCORP RESOURCE INC. (wwww.vanadiumcorp.com)|
US Provisional Patent Applications No. 62/463,411 (February 24th, 2017) and No. 62/582,060 (November 06th, 2017) - METALLURGICAL AND CHEMICAL PROCESS FOR RECOVERING VANADIUM AND IRON VALUES FROM VANADIFEROUS TITANOMAGNETITE AND VANADIFEROUS FEEDSTOCKS. (Inventor: Francois CARDARELLI)
|PCT of the International Patent Application WO 2014/071510 (A1) [PDF file (3 MB)] entitled PROCESS FOR RECOVERING RARE EARTH OXIDES FROM PHOSPHORS, FLUORESCENT LAMPS AND LIGHT BULBS, CATHODE RAY TUBES AND OTHER INDUSTRIAL WASTES. (Inventor: Francois CARDARELLI) This novel process addresses the recovery of rare earths oxides from phosphor dusts, fluorescent lamps and light bulbs, cathode ray tubes and other industrial wastes containing rare earths elements in the form of halophosphates, tri-band phosphors and other fluorescent materials. The process consists: (1) to submit the wastes or spent materials to either caustic fusion or hot alkaline leaching; (2) to perform the hot alkaline leaching of the solidified melt to produce insoluble solid residues and a barren alkaline leaching solution; (3) To recover the tri-basic sodium phosphate by crystallization from the barren solution;(4) to oven-dry or calcine the insoluble solid residues; (5) to perform the hot acid leaching of the oven-dried or calcined solids; (6) to recover the cerium (IV) oxide from insoluble solids; (7) to reduce the cerium-free solution, precipitate, acid leach, precipitate, calcine and recover the europium (III) oxide; (8) to precipitate the remaining rare earths as oxalates; (9) to calcine the rare earths oxalates and dissolve the rare earths oxides in acid; (10) to separate the yttrium, gadolinium, terbium and erbium by ion exchange (IX) or solvent extraction (SX); (11) to precipitate and calcine the pure oxalates to yield pure yttrium (III) oxide, gadolinium (III) oxide, terbium (III, IV) oxides, and erbium (III) oxide; (12) Finally, to regenerate and recycle the spent alkaline solution after causticizing with calcium oxide or calcium hydroxide; Canadian Patent CA 2,878,486 C, February 9th, 2016 [PDF file (1.84 MB)].|
|PCT of the International Patent Application WO 2013/040694 (A1) [PDF file (3 MB)] entitled - PROCESS FOR UPGRADING TANTALUM AND NIOBIUM ORES AND CONCENTRATES WITH THE RECOVERY OF MANGANESE AND RARE EARTH OXIDES. (Inventor: Francois CARDARELLI) - Process for upgrading tantalum and niobium ores and concentrates is described herein. The process comprising: a) submitting the ore or concentrate to a caustic fusion or an alkali fusion using a melt comprising at least one salt of an alkali metal to produce a solidified melt; b) submitting the solidified melt to an alkaline leaching step to produce an alkaline pregnant leaching solution comprising manganese values; c) recovering the manganese values from the alkaline pregnant leaching solution to produce a substantially manganese-free leach solution; and d) precipitating tantalum and niobium as an insoluble sodium niobiate and tantalate from the manganese-free leach solution. Acid leaching the sodium niobiate and tantalate to yield a mixture of pure niobium and tantalum oxides. The rare earth oxides are recovered from the insoluble solid residues obtained during alkaline leaching; Canadian Patent CA 2,849,787 C, April 21st, 2015 [PDF file (3.30 MB)].|
PROCESS I - ELECTROWINNING IRON AND REGENERATING SULFURIC ACID FROM COPPERAS AND FERROUS SULFATE SOLUTIONSPCT of the International Patent Application WO 2009/124393 (A1) [PDF file (2 MB)] entitled - ELECTROCHEMICAL PROCESS FOR THE RECOVERY OF METALLIC IRON AND SULFURIC ACID VALUES FROM IRON-RICH SULFATE WASTES, MINING RESIDUES, AND PICKLING LIQUORS. (Inventor: Francois CARDARELLI) - The patent describes a novel electrochemical technology for recovering metallic iron and iron-rich alloys and concurrently regenerating sulfuric acid from iron-rich sulfate wastes, such as ferrous sulfate heptahydrate (FeSO4.7H2O), also called copperas in the trade, currently by-produced from the titanium white pigment industry, spent pickling liquors (SPLs) originating from iron and steel making plants, and finally pregnant leach solutions (PLS) generated during the acid leaching of ores and concentrates at various minerals and metals processing plants.
Patent Application WO 2008/017156
A1 [PDF file (3 MB)]
- entitled - COMPOSITE
MATERIALS USES THEREOF AND PROCESS FOR MAKING THE SAME. (Inventor: Francois CARDARELLI) - A
lightweight, high strength and corrosion resistant composite metallic
material is disclosed herein. The composite metallic material typically
comprises a high-to-weight ratio, low density core material; and a
corrosion resistant protective refractory metal layer. The method for
making the composite metallic material comprises the steps of surface
activating the core material and forming a refractory metal on the
surface of the surface activated core material by physical, chemical or
electrochemical processes. Such a composite material is suitable for
making biomaterials, corrosion resistant equipment and industrial
MATERIALS HANDBOOK. - A Concise Desktop Reference.
by Francois CARDARELLI
SPRINGER, London, New York, Heidelberg, xxxviii, 1340 pages and 55 figures (2008)
ISBN 1-846-286-689; Hardcover
(Library of Congress Cataloging No. TA.404.8.C37 2008)
The unique and practical second edition of the Materials Handbook provides quick and easy access to data on the physical and chemical properties of all classes of materials. The second edition has been largely expanded to include whole new families of materials while many of the existing families are broadened and refined with new material and up-to-date information. Particular emphasis is placed on the properties of common industrial materials in each class.
* Uniquely thorough presentation of physical and chemical data on materials
* Careful indexing and tabular format make the data quickly accessible
* An essential tool for any practitioner or academic working in materials or in engineering
Detailed appendices provide additional information on subjects as diverse as crystallography, natural radioactivity and economic data for industrial materials. Specific further reading sections and a general bibliography round out this comprehensive guide. The index and tabular format of the book make light work of extracting what the reader needs to know from the wealth of factual information within these covers.
François Cardarelli has spent many years compiling and editing materials data. His professional expertise and experience combine to make this handbook an indispensable reference tool for scientists and engineers working in fields from mechanical, electrical, and chemical to metallurgical and nuclear engineering.
CONTENTS [PDF file (284 KB)]: Properties of Materials.- Ferrous Metals and Their Alloys (Pig iron and steels. - Nickel and nickel alloys. - Cobalt and cobalt alloys. - Manganese and manganese alloys). - Common Nonferrous Metals (Aluminum and aluminum alloys. - Copper and copper alloys. - Zinc and zinc alloys. - Lead and lead alloys - Tin and tin alloys).- Less Common Nonferrous Metals (Alkali-metals, Alkaline-earth metals). - Refractory and reactive metals (Titanium and titanium alloys, Zirconium and zirconium alloys, Hafnium and hafnium alloys, Vanadium and vanadium alloys, Niobium and niobium alloys, Tantalum and tantalum alloys, Chromium and chromium alloys, Molybdenum and molybdenum alloys, Tungsten and tungsten alloys, Rhenium and rhenium alloys) - Noble and precious metals (Silver and Gold). - Platinum Group Metals (PGMs, Ruthenium, Rhodium, Palladium, Osmium, Iridium, Platinum). - Rare Earths and Lanthanides. - Actinides (Uranium, Thorium and Plutonium) .- Semiconductors.- Superconductors.- Magnetic Materials.- Insulators and Dielectrics.- Miscellaneous Electrical Materials [Sample Chapter PDF file (742 KB)]. - Ceramics, Refractories and Glasses.- Polymers and Elastomers.- Minerals, Ores and Gemstones.- Rocks and Meteorites.- Soils and Fertilizers.- Cements, Concrete, Building Stones and Construction Materials.- Timbers and Woods.- Fuels, Propellants and Explosives.- Composite Materials.- Gases.- Liquids.- Appendices. - Bibliography. - Index [Sample chapter PDF file (3.3 MB)].
For more details or purchase see: www.springer.com or any bookstore near your location such as www.amazon.ca or www.amazon.com or www.amazon.fr or www.amazon.co.uk or www.amazon.de or www.amazon.co.jp
ENCYCLOPAEDIA of SCIENTIFIC UNITS, WEIGHTS and MEASURES. Their SI equivalences and origins.
by Francois CARDARELLI
SPRINGER London, New York, Heidelberg, xxiv, 848 pages (2005)
ISBN 1-85233-682-X; Hardcover.
ISBN 1-60119-016-6; Electronic version
(Library of Congress Cataloging No. QC94.C295 2003)
With more than 5,000 units and 35,000 conversion factors The Encyclopaedia of Scientific Units, Weights and Measures covers the full gamut of science, technology and medicine, and deals with US customary, Imperial British, conventional metric, MTS, MKpS, MKSA, CGS (esu, emu and Gaussian), FPS, IPS, atomic units (au), historic and SI units.
The book allows to convert the huge variety of units from all over the world in every period of recorded history into units of the SI. Featuring: * An A - Z of conversion tables for over 5,000 units of measurements. * Tables of units arranged according to the physical quantities (e.g., mass, length, area, volume, density, viscosity, etc.). * Tables of mathematical and fundamental constants. * Listings of professional societies, and national standardization bodies for easy reference. * An extensive bibliography detailing further reading on the multifarious aspects of measurement and its units.
This huge work is simply a "must have" for any reference library frequented by scientists, engineers, and students of any discipline or by those with historical interests in units of measurement such as historians and archaeologists.
CONTENTS [Detailed Table of Content & List of Tables PDF file (88 KB)]: - Introduction.- The International System of Units (SI). - Other Systems (UK, US, FPS, MTS, MKpS, CGS, IEUS, atomic units, ancient times systems, and obsolete national systems). - Conversion Tables. - Mathematical and Fundamental Constants. - Appendices. - Bibliography.
For more details or purchase see: www.springer.com or any bookstore near your location such as www.amazon.ca or www.amazon.com or www.amazon.fr or www.amazon.co.uk or www.amazon.de or www.amazon.co.jp electronic version available ON-LINE at Knovel.com