US5763377A - Compositions and methods for removing titanium .Methods and compositions useful for removing a titanium dioxide-containing material located on a surface, for example, a surface of a piece of process equipment, are disclosed. In one embodiment, the present methods provide for contacting the titanium dioxide-containing material located on the surface with a composition.compositions and methods for removing titanium dioxide from,WO2013101907A1 - Compositions and methods for selectively .Oct 21, 2013 . Compositions useful for the selective removal of titanium nitride and/or photoresist etch residue materials relative to metal conducting, e.g., tungsten, and . Preferably, the oxidizing agent for the composition of the first aspect comprises vanadium oxide, ammonium iodate, ammonium periodate, iodic acid,.
Photocatalytic oxidation of acetaminophen using carbon self-doped .Advanced oxidation processes are reported to be some of the most effective ACT removal approaches . . Titanium dioxide is the most popular photocatalyst in various depredating techniques for emerging contaminants, owing to its highly stable chemical structure, relatively low cost, non-toxicity, and highly oxidizing.compositions and methods for removing titanium dioxide from,Characterisation of titanium dioxide nanoparticles in food products .Titanium dioxide (TiO2) is a common food additive used to enhance the white colour, . methods. While the applied methods are considered state of the art, they showed practical size. 17 limits for TiO2 particles in the range of 20 to 50 nm which may introduce a ... remove any residual particles from the separation channel.John Frank
Oct 21, 2013 . Compositions useful for the selective removal of titanium nitride and/or photoresist etch residue materials relative to metal conducting, e.g., tungsten, and . Preferably, the oxidizing agent for the composition of the first aspect comprises vanadium oxide, ammonium iodate, ammonium periodate, iodic acid,.
Abstract-The removal of titanium minerals from kaolin can be accomplished by treatment with . paper industry, considerable effort has been expended for the development of processes to remove anatase impurities. Two methods, both employing flotation, have been ... Viscosity of Paper Coating Compositions: Tappi 47,.
While Kroll's work demonstrated a method for titanium production on a laboratory scale, it took nearly a decade more before it could be adapted for large-scale production. This work was . While rutile can be used in its natural form, ilmenite is processed to remove the iron so that it contains at least 85% titanium dioxide.
Titanium dioxide (TiO2) is a common food additive used to enhance the white colour, . methods. While the applied methods are considered state of the art, they showed practical size. 17 limits for TiO2 particles in the range of 20 to 50 nm which may introduce a ... remove any residual particles from the separation channel.
Ilmenite is a black iron-titanium oxide with a chemical composition of FeTiO3. . Weakly consolidated sands containing about 4% heavy minerals are excavated and processed to remove ilmenite, leucoxene, rutile, and zircon. . "Black sand prospecting" has long been a method of finding heavy mineral placer deposits.
from the Qara-aghaj ilmenite concentrate to a high grade titanium dioxide (TiO2) was studied. . alternative methods that use ilmenite are being favored. .. Iron removing from titanium slag for synthetic rutile production. 429. Table 1. Chemical composition of ore sample and ilmenite concentrate. Composition, % TiO2.
Apr 10, 2017 . Recently, advanced oxidation processes (AOPs) are presented as a proposed method to remove this organic pollution. Photocatalytic degradation is also used as an efficient method for destruction of organic structures. In this study, the effect of titanium dioxide (TiO2) nanoparticle as a photocatalyst.
the electrolyte composition, voltage and time of anodization on the geometric characteristics of . Another method for the preparation of ordered titanium dioxide nanotubes is electrochemical anodization of . anodization the sample was sonicated into a 2 M HCl solution and acetone for 10 minutes to remove the surface dirt.
formation in the course of titanium dioxide nanopowder sintering using conventional method and spark-plasma sintering. . Phase composition of samples was researched by way of light combination scattering spectroscopy (Raman . disintegrated upon removal of molybdenum circular panel. Fig.1a shows a Raman.
Feb 15, 2010 . The concentration of titanium in the formulations was determined using ICP-MS with a Fisons (Thermo) PQ3 instrument using dissolution and analysis methods described below for tissue analysis. Samples of sunscreen were removed to determine the homogeneity of the distribution and average.
Abstract.Titanium dioxide (TiO2) thin films are deposited on silicon substrates by using sol-gel dip coating technique. Annealing . material, its composition, deposition method and annealing temperature also play an important role in the formation of the resulting . on the wafer surface. Then, the native oxide is removed with.
Putative chimeras were removed from the dataset. . the Vegan package of the R software based on Bray-Curtis distances, associated to Permanova (Permutational multivariate analysis of variance) using the adonis function, to explore the difference in community composition in the different treatments.
Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO 2. When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. Generally it is sourced from ilmenite, rutile and anatase. It has a wide range of applications, from paint to.
UCR Professor David Kisailus has developed a novel water purification method using TiO2 photocatalysts that neutralizes currently unfiltered chemicals. TiO2 is a safe, naturally occurring substance that appears in many of our products such as paints, plastics, and toothpaste. The proprietary TiO2 composition.
metal compositions in the ore increases, technology to extract these metals become more difficult and complicated . However transition metal minerals such as titanium, iron can be recovered by the methods; leaching minerals from ores using an acidic solution such as sulphuric acid . Titanium dioxide can be produced.
Dec 10, 2017 . (E) To produce titanium oxide using method  (Nano Chemical Inc.) the modified wet sulfate process was used. . Methods. 2.2.1. Specific Surface Area of Nanopowders, Phase Composition, and Shape of Nanoparticles. The specific surface area (SSA) and average particle size (APS) of the powders.
Aug 31, 2015 . The photocatalytic removal of azo dye by nickel-doped titanium dioxide nanoparticles coated on Iranian natural zeolite clinoptilolite fixed substrate . In addition, the composition of the 9% Ni/TiO 2 -CLI possessed the greatest removal rate difference of azo dye at the concentrations of 25 and 50 mg/L.
Nov 16, 2011 . In the present work, we report on a combined chemical-electrochemical oxidation method to obtain porous TiO2 films on titanium. In this case, a combination of a chemical pre-etching followed by the MAO treatment is proposed and optimized. The focus is to remove the initial oxide formed during the.
QS laser treatment can result in good cosmetic outcomes and complete or near-complete removal of many unwanted tattoos. .. Tattoos containing iron oxide or titanium dioxide (typically tan, brown, or white tattoos or cosmetic tattoos) can exhibit paradoxical darkening immediately after treatment secondary to chemical.