Cristal Us, Inc.

Cristal Metals Inc.

Other

University of Chicago

International Titanium Powder, LLC

Lance E Jacobsen

Richard Paul Anderson

Adam John Benish

Donn Reynolds Armstrong

William Ernst

Armstrong Donn

Adam (deceased) Benish

A titanium base alloy powder is formed by subsurface reduction of a chloride vapor with a molten alkali metal or molten alkaline earth metal to form reaction products comprising pre-alloy particles and a salt of the alkali metal or the alkaline earth metal. A majority of the pre-alloy particles have a composition of at least 50% by weight of titanium, about 5.38% to 6.95% by weight of aluminum, and about 3% to 5% by weight of vanadium. The pre-alloy particles are recovered from the reaction products to produce a titanium base alloy powder containing less than about 200 ppm alkali or alkaline earth metal.

Titanium alloy

A method and system for producing an alloy using a flowing stream of superheated halide vapor to flash vaporize liquid halides forming a mixture of gases in predetermined and controllable ratios. The mixture of gases are introduced into a flowing stream of liquid alkali or alkaline earth metal or mixtures to establish a reaction zone where the mixture of gases is reduced to an alloy and a salt. The liquid metal is in a sufficient amount in excess of stoichiometric to maintain substantially all the alloy and salt below the sintering temperatures thereof away from the reaction zone. Equipment for practicing the method is also disclosed. The system relates to alloys of B, Be, Bi, C, Fe, Ga, Ge, Hf, In, Mo, Nb, P, Pb, Re, S, Sb, Si, Sn, Ta, Ti, V, W and Zr.

[object Object]

A titanium base alloy powder having lesser amounts of aluminum and vanadium with an alkali or alkaline earth metal being present in an amount of less than about 200 ppm. The alloy powder is neither spherical nor angular and flake shaped. 6/4 alloy is specifically disclosed having a packing fraction or tap density between 4 and 11%, as is a method for making the various alloys.

A titanium metal or a titanium alloy having submicron titanium boride substantially uniformly dispersed therein and a method of making same is disclosed. Ti power of Ti alloy powder has dispersed within the particles forming the powder titanum boride which is other than whisker-shaped or spherical substantially uniformly dispersed therein.

Titanium boride

A method of producing passivated Ti or Ti alloy particles with oxygen concentrations of less than about 900 parts per million (ppm), which includes introducing a halide vapor of Ti or the metal constituents of the alloy at sonic velocity or greater into a stream of liquid alkali or liquid alkaline earth metal or mixtures thereof forming a reaction zone in which the halide is reduced by the liquid metal present in sufficient excess of stoichiometric such that Ti or Ti alloy powder from the reduction of the halide by the liquid metal is friable. After filtration and distillation excess liquid metal is removed from the Ti or Ti alloy powder that is then maintained at elevated temperature for a time sufficient to grow the particles to average diameters calculated from BET surface area measurement greater than about one micron. After cooling the Ti or Ti alloy powder to temperature of about 80&#xb0; C. or less, the cooled Ti or Ti alloy powder is contacted with air and/or water to passivate the particles to produce friable metal powder and to remove other reaction products. A system for accomplishing the method is also shown.

Direct passivation of metal powder

A method of separating metal particulates from a slurry of original constituents of liquid metal and metal particulates and salt particulates is disclosed. The metal and salt particulates are concentrated by removing at least some of the liquid metal, and then, liquid metal or a liquid of the original salt constituent or a mixture thereof is passed through the particulates at a temperature greater than the melting point of the original salt constituent to further concentrate the metal particulates. The metal particulates are then separated from the remaining original constituents or a mixture of the salt constituent. Density differences between the liquid metal and salt are also used to facilitate separation.

Process for separating TI from a TI slurry

A needle valve is disclosed for controlling the quantity of a halide vapor to be injected into a liquid metal. The needle valve may seat in a supersonic nozzle from which the halide vapor exits. Various products made with the apparatus of the invention are disclosed.

Method and apparatus for controlling the size of powder produced by the Armstrong Process

A system and method of separating metal powder from a slurry of liquid metal and metal powder and salt is disclosed in which the slurry is introduced into a first vessel operated in an inert environment when liquid metal is separated from the metal powder and salt leaving principally salt and metal powder substantially free of liquid metal. The salt and metal powder is transferred to a second vessel operated in an inert environment with both environments being protected from contamination. Then the salt and metal powder are treated to produce passivated powder substantially free of salt and liquid metal. The method is particularly applicable for use in the production of Ti and its alloys.

Separation system of metal powder from slurry and process

A method of controlling the size and morphology of powder made by the subsurface injection of a halide vapor into a liquid metal is disclosed. A reaction zone is established and the temperature thereof or the time the powder remains therein is controlled to change powder characteristics.

Method and apparatus for controlling the size of powder produced by the Armstrong process

A method and apparatus for making alloys or ceramics by the subsurface injection of an equilibrium vapor of a boiling liquid of the ceramic or alloys constituents is disclosed. Various powders and products are disclosed.

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Minooka, IL, United States of America

Lance E Jacobsen