Download or read book Hydrolysis Conditions on Rutile Titanium Dioxide White Pigment Preparation Via Low Concentration TiOSO4 Solution written by Congxue Tian and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Using low concentration industrial titanyl sulfate solution as raw material, rutile titanium white pigment was prepared via the self-seeded thermal hydrolysis sulfate process. The effects of pre-adding water, feeding rate and aging time on the particle morphologies, particle size distribution and pigment properties of rutile titanium dioxide white pigment were investigated. The as-prepared samples were characterized by particle size distribution test, SEM, XPS, TEM and pigment properties test. The results showed that the optimal hydrolysis operating conditions was the pre-adding water ratio of 22% of, the feeding rate of 8.3 r/min, and the aging time was of 30min. The obtained rutile titanium white pigment was with suitable particle size, narrow particle size distribution and good pigment properties. The effects order on the pigment performances from large to small was the pre-adding water volume ratio, the feeding rate and the aging time.
Download or read book Structures and Properties of Metatitanic Acid on Preparation Rutile Titanium Dioxide Pigment Via Short Sulfate Process written by Congxue Tian and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The crystal structure, particle size distribution and impurity content of metatitanic acid had great impacts on the structures and pigment properties of rutile titanium dioxide pigment, and appropriate structure of metatitanic acid was helpful to prepare titanium dioxide with excellent pigment properties. The rutile titanium dioxide white pigment was produced via short Sulfate Process from unenriched low concentration industrial TiOSO4 solution. In order to produce rutile TiO2 pigment with good structures and excellent pigment properties, the crystal size of metatitanic acid should be controlled less than 8.9 nm and as close as possible to 7.9 nm, which could effectively promote the phase transformation and crystal growth of the rutile TiO2. The appropriate particle size distribution of metatitanic acid had obvious effects on obtaining rutile TiO2 with narrower particle size distribution and near 0.20 u00b5m. It was best to adjust the hydrolysis conditions to reduce the specific surface area of metatitanic acid so as to reduce the iron ion impurity adsorption.
Download or read book Hydrolysis Process for Titanium Dioxide Pigment from Un concentrated Industrial TiOSO4 Solution written by Congxue Tian and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrolysis of unenriched low concentration industrial titanyl sulfate solution affected SO42-, and obtained metatitanic acid sample predominantly amorphous component, containing a small amount of anatase crystal structure of particles, which TiO6 octahedral distortion occurs, a-axis reduce, c-axis increases. These samples have a porous structure, having a surface area in the vicinity of 286 m2/g, smaller pore size, larger pore volume, moisture volatiliza and SO42- decompose in metatitanic acid, drastically reduce the specific surface area, grain coalescence than grow , particle gap increases, the pore volume reduce after calcination. With prolonging hydrolysis time, the grain size is increase, and the grain growth can be divided into three stages: rapid growth phase, the transition phase and the grain growth of slow growth. Grain growth and particle aggregation have important relationship, mainly is aggregated between particles in the early, the latter mainly is ion attachment grew up in the particle surface. The obtained metatitanic acid particles via hydrolysis is with the size of 1-2 u03bcm. After 70 0C drying, metatitanic acid powder with size of 0.2-1.2 u03bcm, and average size of 583nm. And the particle size of metatitanic acid is affected by the content of colloidal particles, primary particles size and grinding intensity.
Download or read book Orthogonal Interactions and Synergistic Effects of Salt Treatment and Calcination on Rutile Titanium Dioxide Pigment Preparation written by Congxue Tian and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Rutile titanium dioxide pigments were prepared by using metatitanic acid as raw material hydrolyzed from industrial low concentration titanyl sulfate solution via short sulfate process. The orthogonal interactions of the addition of salt treatment agent (ZnO, K2O, P2O5) and the highest calcination temperature were investigated by using four-factor quadric orthogonal regression test. The metatitanic acid and rutile TiO2 were characterized by XRD, particle size distribution and pigment properties test. The different salt addition and the highest calcination temperature had great effects on the achromatic power (TCS) of the rutile TiO2 pigments. The orthogonal interactions regression model to TCS was built and showed highly repeatability and stability, which could be used to forecast the pigment properties and preset the salt treatment and calcination conditions. And the optimal salt treatment conditions were ZnO of 0.36%, K2O of 0.70%, P2O5 of 0.20%, and the highest calcination temperature of 850 0C.
Download or read book Hydrolysis Mechanism for Titania Pigment from Unconcentrated Industrial TiOSO4 written by Congxue Tian and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Using unconcentrated industrial TiOSO4 solution as raw material, hydrolysis kinetic and mechanism was studied via the self-seeded thermal hydrolysis sulfate process. The slurries were characterized by hydrolysis yield test and the metatitanic acid samples were characterized by FT-IR, XRD, HRTEM and BET. Hydrolysis time of the first derivative curve calculated basically is agreed with experimental turn grey point time, and the calculated pre-exponential factor k0 and the activation energy Ea were 1.40u00d71018 min-1 and 147.6kJ/mol, respectively. And the calculated hydrolysis yield ranged from 15.5% to 17.9%, when hydrolysis reaction reached turn grey point time. The anatase structure was formed by the induction and the steric hindrance of SO42- ions in bidentate ligand on surface of particles. The as-prepared metatitanic acid sample have a porous structure, specific surface area was 270m2/g, average pore size was 5.2nm, fringe spacing for 0.352nm and the anatase nuclei size ranged from approximately 2.8nm to 5.3nm.
Download or read book Effects of Structures of Metatitanic Acid on the Preparation of High Purity Titanium Dioxide Via Sulfate Process written by Yong Zhang and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The composition and structure of industrial metatitanic acid played a decisive role on the crystal structure of titanium dioxide, affecting the purity of titanium dioxide. High purity titanium dioxide was prepared from low concentration industrial titanyl sulfate by Sulfate Process. The effects of preadding water volume ratio, aging time, total TiO2 concentration on the particle size distribution, crystal size and titanium dioxide content of metatitanic acid were investigated. The preaddind water volume ratio determined the concentration, quantity and activity of the hydrolysis seeds, affected the integrity of metatitanic acid particles and cell parameters, which had important impacts on the purity of titanium dioxide. The aging time and total titanium concentration affected the particle size distribution of metatitanic acid, the purity of titanium dioxide. The optimum conditions were that the preadding water content was of 60%, the aging time was of 20 min, and the total TiO2 concentration was of 180.4 g/L, the particle size distribution was narrowest and the grain size was relatively smaller, and the purity of titanium dioxide was the highest, with TiO2 content of 99.98%.
Download or read book SCANNING ELECTRON MICROSCOPY AND X RAY MICROANALYSIS SET PRICE OF 34 BOOKS written by Graham Lawes and published by John Wiley & Sons. This book was released on 2008-09-23 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Titanium Titanium Dioxide written by Reg Adams and published by . This book was released on 1984 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sol Gel Materials for Energy Environment and Electronic Applications written by Suresh C. Pillai and published by Springer. This book was released on 2017-02-16 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides expert coverage of the state-of-the-art in sol-gel materials for functional applications in energy, environment and electronics. The use of sol-gel technology has become a hotbed for cutting edge developments in many fields due to the accessibility of advanced materials through low energy processes. The book offers a broad view of this growing research area from basic science through high-level applications with the potential for commercialization and industrial use. Taking an integrated approach, expert chapters present a wide range of topics, from photocatalysts, solar cells and optics, to thin films and materials for energy storage and conversion, demonstrating the combined use of chemistry, physics, materials science and engineering in the search for solutions to some of the most challenging problems of our time.
Download or read book Design of Advanced Photocatalytic Materials for Energy and Environmental Applications written by Juan M. Coronado and published by Springer Science & Business Media. This book was released on 2013-05-27 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research for the development of more efficient photocatalysts has experienced an almost exponential growth since its popularization in early 1970’s. Despite the advantages of the widely used TiO2, the yield of the conversion of sun power into chemical energy that can be achieved with this material is limited prompting the research and development of a number of structural, morphological and chemical modifications of TiO2 , as well as a number of novel photocatalysts with very different composition. Design of Advanced Photocatalytic Materials for Energy and Environmental Applications provides a systematic account of the current understanding of the relationships between the physicochemical properties of the catalysts and photoactivity. The already long list of photocatalysts phases and their modifications is increasing day by day. By approaching this field from a material sciences angle, an integrated view allows readers to consider the diversity of photocatalysts globally and in connection with other technologies. Design of Advanced Photocatalytic Materials for Energy and Environmental Applications provides a valuable road-map, outlining the common principles lying behind the diversity of materials, but also delimiting the imprecise border between the contrasted results and the most speculative studies. This broad approach makes it ideal for specialist but also for engineers, researchers and students in related fields.
Download or read book Ceramic Coatings written by Feng Shi and published by BoD – Books on Demand. This book was released on 2012-02-24 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main target of this book is to state the latest advancement in ceramic coatings technology in various industrial fields. The book includes topics related to the applications of ceramic coating covers in enginnering, including fabrication route (electrophoretic deposition and physical deposition) and applications in turbine parts, internal combustion engine, pigment, foundry, etc.
Download or read book Nanoparticulate Materials written by Kathy Lu and published by John Wiley & Sons. This book was released on 2012-09-25 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Serving as the only systematic and comprehensive treatment on the topic of nanoparticle-based materials, this book covers synthesis, characterization, assembly, shaping and sintering of all types of nanoparticles including metals, ceramics, and semiconductors. A single-authored work, it is suitable as a graduate-level text in nanomaterials courses.
Download or read book Survey of Industrial Chemistry written by Philip J. Chenier and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: Survey of Industrial Chemistry arose from a need for a basic text dealing with industrial chemistry for use in a one semester, three-credit senior level course taught at the University of Wisconsin-Eau Claire. This edition covers all important areas of the chemical industry, yet it is reasonable that it can be covered in 40 hours of lecture. Also an excellent resource and reference for persons working in the chemical and related industries, it has sections on all important technologies used by these industries: a one-step source to answer most questions on practical, applied chemistry. Young scientists and engineers just entering the workforce will find it especially useful as a readily available handbook to prepare them for a type of chemistry quite different than they have seen in their traditional coursework, whether graduate or undergraduate.
Download or read book High Performance Pigments written by Hugh MacDonald Smith and published by John Wiley & Sons. This book was released on 2002 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the ideal companion to Wiley's trilogy: The Pigments Handbook (1988), Industrial Organic Pigments (1997), and Industrial Inorganic Pigments (1998). High Performance Pigments have become increasingly important in recent years, with a growth rate well in advance of the more classical types of pigments. The book offers both producers and users of High Performance Pigments the opportunity to review and update their understanding of latest technologies and market issues impacting both inorganic and organic High Performance Pigments, together with assessing key regulatory affairs, in this specialty niche of the chemical industry. The manufacture of High Performance Pigments is today a global industry. This is reflected in the multinational expertise of the over twenty experts, drawn from Europe, North America and Asia, who have authored chapters in this book. No professional today can afford to waste time on unfocussed research. This book will effectively help chemists, physicists, engineers, applications and regulatory specialists, and materials scientists to stay ahead in this fast-changing field.
Download or read book Synthesis Properties and Applications of Oxide Nanomaterials written by José A. Rodriguez and published by John Wiley & Sons. This book was released on 2007-03-09 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current oxide nanomaterials knowledge to draw from and build on Synthesis, Properties, and Applications of Oxide Nanomaterials summarizes the existing knowledge in oxide-based materials research. It gives researchers one comprehensive resource that consolidates general theoretical knowledge alongside practical applications. Organized by topic for easy access, this reference: * Covers the fundamental science, synthesis, characterization, physicochemical properties, and applications of oxide nanomaterials * Explains the fundamental aspects (quantum-mechanical and thermodynamic) that determine the behavior and growth mode of nanostructured oxides * Examines synthetic procedures using top-down and bottom-up fabrication technologies involving liquid-solid or gas-solid transformations * Discusses the sophisticated experimental techniques and state-of-the-art theory used to characterize the structural and electronic properties of nanostructured oxides * Describes applications such as sorbents, sensors, ceramic materials, electrochemical and photochemical devices, and catalysts for reducing environmental pollution, transforming hydrocarbons, and producing hydrogen With its combination of theory and real-world applications plus extensive bibliographic references, Synthesis, Properties, and Applications of Oxide Nanomaterials consolidates a wealth of current, complex information in one volume for practicing chemists, physicists, and materials scientists, and for engineers and researchers in government, industry, and academia. It's also an outstanding reference for graduate students in chemistry, chemical engineering, physics, and materials science.
Download or read book Combined and Hybrid Adsorbents written by José M. Loureiro and published by Springer Science & Business Media. This book was released on 2006-10-03 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book follows up an Advanced Research Workshop dedicated to the subject of adsorption. It presents an up-to-date review of the latest achievements in the synthesis, characterization and applications of hybrid organic-inorganic materials and of carbon and combined adsorbents. The modeling of the adsorption process, including the simulation of carbon masks used for both civil and military protection purposes is also addressed. Includes applications in environmental, military and post-disaster situations.
Download or read book Handbook of Infrared and Raman Spectra of Inorganic Compounds and Organic Salts written by Richard A. Nyquist and published by Academic Press. This book was released on 1971-12-28 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Infrared and Raman Spectra of Inorganic Compounds and Organic Salts.
