A method of forming a shaped article includes forming a mixture which includes a titania hydrate pulp having a loss on ignition of from about 10 to 45 wt. %, a seed material comprising a titanium oxide, at least a portion of the titanium oxide being in a rutile form, and optionally a dispersion aid. The method includes forming the mixture into a shaped …

Rutile TiO 2 powders are conventionally obtained by phase transformation of anatase to rutile at more than 450° C. or by flame oxidation of TiCl 4.These methods result in larger titania particles with lower surface/volume ratio. The alternative to control the phase and size of rutile titania particles involves the use of a precursor along with other mineralizers and …

Priority to US763738A priority Critical patent/US2559638A/en Application granted granted Critical ... in either the rutile or anatase crystalline form by decomposing in the vapor phase titanium tetrachloride and a small amount of aluminum chloride under controlled oxidation conditions and in the presence of small ...

A dressing technology for separating high-grade rutile from beach sand ore includes such steps as gravitally dressing raw rutile concentrate with hydraulic shaker to separate rutile and heavy ore from light ore such as quartz sand, magnetic dressing with induction roller type magnetic separator to separate magnetic impurities such as ilmenite …

The invention relates to production of lutile, which has high added value as refining raw material for metallic titanium, white pigment, photocatalyst, or functional coating material, with remarkably reduced energy and resource consumption as compared with that of prior art and though simplified steps. The invention provides a method for the extraction of …

Rutile precipitates, which were obtained by exsolution in a subsequent heat-treatment step between 1100 and 1500°C using the classical annealing process described in the patents assigned to Linde (see above), were in general equally distributed throughout the ruby or sapphire spheres.

Patent number: 4038363. Abstract: Upgrading of titanium values in a slag such as Sorelslag by working up the lag such as by alkali salt roasting to render the slag leachable in a plurality of leaching stages to recover titania (and other) values of 94 to 97 percent purity useful in a sulphate or a chloride process for producing titanium dioxide.

Rutile is a naturally occuring substantially pure TiO 2, but ilmenite is the most wide spread and cheapest titanium-containing ore.Ilmenite is classically ferrous titanite, FeO.TiO 2 or FeTiO 3.In the natural state, the ilmenite is often associated with greater quantities of iron oxide and varying amounts of other impurities such as the oxides and sulphides of …

in 37% of patent families, either as a pre-treatment or as a direct process to obtain TiO2 or synthetic rutile. The sulfate process is protected in 23% of patent families and is almost exclusively used to obtain TiO2, while the chloride process is only mentioned in 8% of patent families. Titanium product Ilmenite 507 Ore Slag tailing 221 Slag ...

SUCH SLURRIES, PREFERABLY OF RUTILE PIGMENT, ARE HIGHLY USEFUL IN THE PRODUCTION OF COATED PAPER AND WATER BASED PAINTS. US3758322A - Rutile tio2 slurries - Google Patents Rutile tio2 slurries ... Publication of US3758322A publication Critical patent/US3758322A/en Assigned to KEMIRA, INC., A …

Fig. 1 shows parts of normalized X-ray diffraction (XRD) patterns of isolated pure anatase and rutile powders and original P25. Contamination of rutile in anatase was not detected, and vice versa. It should be noted that the widths of peaks at ca. 25.3° and 27.4° for anatase and rutile, respectively, of isolated and original samples were …

US4199552A Process for the production of synthetic rutile. US5427749A Production of synthetic rutile. US3252787A Process for producing titanium dioxide concentrate and other useful products from ilmenite and similar ores. US6699446B2 Methods for separation of titanium from ore.

A process for recovering titanium as synthetic rutile from a titaniferous ore, for example a secondary ilmenite, includes the steps of treating the ore in a reducing atmosphere at elevated temperature above 1075° C. in the presence of a carbonaceous reductant whereby to convert the ilmenite to reduced ilmenite in which iron oxides in the …

See U.S. Code Title 35 - Patents, for a full description of patents and patent laws. * Utility Patent- Issued for the invention of a new and useful process, machine, manufacture, or …

This invention relates to a method for recovering a bulk concentrate of zircon and a bulk concentrate of rutile-ilmenite from dry plant tailings. A process has been discovered for froth flotation by manipulating the surface charges of dry plant tailings. Conditioning reagents, sulfuric acid to lower the pH; corn starch to coat the minerals to be depressed; sodium …

The object of the invention are rutile nanoparticles and the synthesis method for obtaining rutile nanoparticles from metatitanic acid, which is a semi-product in the production of TiO 2 pigment. The rutile nanoparticle synthesis from metatitanic acid is based on the so-called gel-sol method. Rutile nanoparticles according to the invention are very fine particles in …

The growing method of rutile crystal - Patent CN-103173846-B. 1 Abstract. The present invention relates to the growing method of rutile crystal.It the method use new fluxing agent BaCO 3 —B 2 O 3 System, can greatly reduce the growth temperature of crystal, can stably grow size for Centimeter Level, the preferable rutile crystal of quality.The technique …

1. A process for recovering titanium as synthetic rutile from an ilmenite unsuited to the standard Becher process, including the steps of treating the ilmenite unsuited to the standard Becher process in a reducing atmosphere in the presence of a carbonaceous reductant whereby to convert the ilmenite to reduced ilmenite in which iron oxides in the …

A blue single crystal of synthetic rutile composition consisting of titania, and amount from about 0.001% to about 1% by weight of uranium oxide. References Cited in the file of this patent UNITED STATES PATENTS 988,230 Verneuil Mar. 28, 1911 2,610,129 Eversole et al. Sept. 9, 1952 2,634,554 Barnes Apr. 14, 1953 2,693,421 Eversole et al. Nov. 2 ...

WO1992021811A1 Buff rutile pigment compositions. CA2086714A1 Paint Stripper Composition. CA2101326A1 Powder blend of thermosetting polyesters. BG102673A Mixtures produced from grains of eugenia jambolana lamarck, their preparation and application and some of their components as medicinal …

rutile single crystal titania flame red Prior art date ... United States Patent Cfifice 2,693,421 Patented Nov. 2, 1954 SYNTHETIC MONOCRYSTALLINE RUTILE William G. Eversole and Wilfred Drost, Kenmore, N. Y., assignors, by mesne assignments, to Union Carbide and Carbon Corporation, a corporation of New York No Drawing. ...

Turkey and Saudi Arabia rank the highest in the Middle East for patent applications according to a report from the World Intellectual Property Organisation …

It may be produced by neutralizing rutile seed to a higher pH than that at which it has traditionally been neutralized prior to washing and thermally treating the seed. ... Priority to US10/291,104 priority Critical patent/US7521039B2/en Assigned to MILLENNIUM INORGANIC CHEMICALS, INC. reassignment MILLENNIUM INORGANIC ...

In the prodn. of rutile mix phase pigments by calcination in a rotary calciner, which is provided with separate hot zones, zone temp. control, indirect heating and ventillation, the dia./total length ratio is ca. 1:20 and the charge is preheated to the calcination temp. in ca. 15 min in a preheating zone. Ventilation takes place in the direction of the charge and the …

We have 2 invention patents and 12 utility model patents for the production of titanium dioxide by chlorination process. Rutile Titanium Dioxide Cristal Germany Tio2 Paint Grade. $2.15 - $3.53 / kilogram. ... Titanium Oxide Tio2 --Rutile Titanium Dioxide Rutile Grade Manufacturers France. $2.15 - $3.53 / kilogram. 1000.0 kilograms (Min. Order)

Consolidated Rutile General Information. Description. Provider of mineral sand mining services. The company's mineral sand mining services include extraction of ilmenite and rutile minerals used in the manufacturing of paint pigments, protective coatings, titanium metal, and welding electrodes, enabling the manufacturing industry to access a wide …

Description. This invention relates in general to a process for producing synthetic rutile and more particularly to a process for producing synthetic rutile having a titanium dioxide content of about 85 to 95 percent by weight. White paint pigment is primarily titanium dioxide, and historically has been produced by two processes, the sulfate ...

The conditions of reduction are controlled to promote the formation of metallic iron, a major rutile phase and a minor impurity bearing phase. The minor impurity phase …

US4158041A Separation of ilmenite and rutile. US3434947A Process for the separation of iron from metal sulphate solutions and a hydrometallurgic process for the production of zinc. US6699446B2 Methods for separation of titanium from ore. US4269809A Recovery in titanium metal values by solvent …