US Pat. No. 9,163,299

DEVICE FOR PRODUCING TITANIUM METAL, AND METHOD FOR PRODUCING TITANIUM METAL

HITACHI METALS, LTD., To...

1. An apparatus for producing titanium metal comprising:
(a) a first heating unit for heating and gasifying a first material selected from magnesium and titanium tetrachloride, and
a first channel for supplying the gaseous first material from the first heating unit;

(b) a second heating unit for heating and gasifying a second material selected from magnesium and titanium tetrachloride at
a temperature of not lower than 1600° C., and a second channel for supplying the gaseous second material from the second heating
unit;

(c) a venturi section including an entrance channel, an exit channel, and a throat having a smaller cross-sectional area between
the entrance channel and the exit channel, wherein the second channel is connected to the entrance channel and the first channel
merges with the throat so that magnesium and titanium tetrachloride flowing through the first channel and the second channel
merge in the throat and the merged gaseous magnesium and titanium tetrachloride are mixed in the exit channel, and wherein
a temperature of the throat and the exit channel is controlled at not lower than 1600° C.;

(d) a titanium metal deposition unit in communication with the exit channel, the titanium metal deposition unit having a deposition
substrate for depositing the titanium metal at a temperature from 715 to 1500° C.; and

(e) a discharge unit for discharging the mixed gas in communication with the titanium metal deposition unit;
wherein the second material is different from the first material.

US Pat. No. 9,380,693

HIGH PERFORMANCE INDUCTION PLASMA TORCH

Tekna Plasma Systems Inc....

1. A plasma confinement tube for use in an induction plasma torch, the plasma confinement tube being made of a thermally conductive
and electrically resistive material, defining a geometrical axis and an outer surface, and comprising:
a capacitive shield including a film of electrically conductive material applied to the outer surface of the plasma confinement
tube and segmented into axial strips interconnected at one end; and

axial grooves in the outer surface of the plasma confinement tube through the thermally conductive and electrically resistive
material, the axial grooves being interposed between the axial strips;

wherein the axial grooves reduce a thickness of the plasma confinement tube and extend a heat transfer surface area of the
outer surface of the plasma confinement tube between the axial strips to improve heat exchange through the heat transfer surface
area, and wherein the axial grooves in the thermally conductive and electrically resistive material of the plasma confinement
tube improve insulation between the axial strips of the film of electrically conductive material.

US Pat. No. 9,435,007

TITANIUM METAL PRODUCTION APPARATUS AND PRODUCTION METHOD FOR TITANIUM METAL

HITACHI METALS, LTD., To...

1. An apparatus for producing titanium metal, comprising:
(a) a first flow channel for supplying gaseous magnesium;
(b) a second flow channel for supplying gaseous titanium tetrachloride;
(c) a gas mixing section in communication with the first flow channel and the second flow channel, wherein the gaseous magnesium
is mixed with the gaseous titanium tetrachloride in the gas mixing section, and a temperature within the gas mixing section
is controlled at not lower than 1600° C.;

(d) a titanium metal deposition section in communication with the gas mixing section, wherein the titanium metal deposition
section is at a temperature of 715 to 1500° C. and under an absolute pressure of 50 to 500 kPa, and wherein particles for
deposition are movably disposed in the titanium metal deposition section; and

(e) a mixed gas discharge section in communication with the titanium metal deposition section,
wherein the particles are supplied from an upper portion of the titanium metal deposition section, and the gas mixing section
is communicatively connected to a side of the titanium metal deposition section.

US Pat. No. 9,516,734

PLASMA REACTOR FOR THE SYNTHESIS OF NANOPOWDERS AND MATERIALS PROCESSING

TEKNA PLASMA SYSTEMS INC....

1. A plasma reactor comprising:
a torch body comprising a plasma torch for generating a plasma;
a reactor section in fluid communication with the torch body for receiving the plasma from the plasma torch;
a quench section in fluid communication with the reactor section,
wherein the quench section comprises a frusto-conical quench chamber,
wherein the frusto-conical quench chamber comprises an inner wall of a serrated configuration, and
wherein the frusto-conical quench chamber comprises an upstream end having a first diameter adjacent the reactor section and
an opposite downstream end having a second diameter larger than the first diameter; and

at least one heating element in thermal communication with the reactor section,
wherein the at least one heating element provides for selectively modulating a temperature within the reactor section.

US Pat. No. 9,751,129

PROCESS AND APPARATUS FOR PRODUCING POWDER PARTICLES BY ATOMIZATION OF A FEED MATERIAL IN THE FORM OF AN ELONGATED MEMBER

TEKNA PLASMA SYSTEMS INC....

1. An apparatus for producing powder particles by atomization of a feed material in the form of an elongated member, comprising
an inductively coupled plasma torch with a longitudinal axis and including:
a coaxial injection probe at a first end of the inductively coupled plasma torch and comprising an elongated conduit which
extends through at least an upstream portion of a coaxial plasma confinement tube of the plasma torch for introducing the
elongated member of feed material axially into the plasma torch; and

an atomization nozzle at a second end of the plasma torch opposite the first end, wherein the atomization nozzle comprises
an aperture coaxial with the longitudinal axis for receiving the elongated member of feed material from the coaxial injection
probe, and wherein the atomization nozzle is configured for producing, using plasma from the inductively coupled plasma torch,
at least one feed material atomizing plasma jet for surface melting and atomizing feed material of a forward end of the elongated
member by exposure to the at least one feed material atomizing plasma jet.

US Pat. No. 10,893,600

HIGH PERFORMANCE INDUCTION PLASMA TORCH

TEKNA PLASMA SYSTEMS INC....

1. An induction plasma torch comprising:a tubular torch body having an inner surface;
a plasma confinement tube having an outer surface and disposed inside the tubular torch body coaxial with said tubular torch body with an annular chamber formed between the inner surface of the tubular torch body and the outer surface of the plasma confinement tube;
a gas distributor head disposed at one end of the plasma confinement tube and structured to supply at least one gaseous substance into the plasma confinement tube;
an inductive coupling member outside the inner surface of the tubular torch body for applying energy to the gaseous substance to produce and sustain plasma in the plasma confinement tube;
a conductive capacitive shield applied to the inner surface of the tubular torch body, wherein the capacitive shield is segmented into axial strips, the axial strips are interconnected at one end, and the capacitive shield is in direct contact with the inner surface of the tubular torch body; and
axial grooves entirely formed within a material of the tubular torch body through the inner surface of the tubular torch body, the axial grooves being interposed between the axial strips.

US Pat. No. 10,688,564

PROCESS AND APPARATUS FOR PRODUCING POWDER PARTICLES BY ATOMIZATION OF A FEED MATERIAL IN THE FORM OF AN ELONGATED MEMBER

TEKNA PLASMA SYSTEMS INC....

1. An apparatus for producing powder particles by atomization of a feed material in the form of an elongated member, comprising:an inductively coupled plasma torch defining a longitudinal axis, having an upstream end and including an inner plasma confinement tube coaxial with the longitudinal axis, having a downstream end, and in which the inductively coupled plasma torch produces plasma;
an injection probe coaxial with the longitudinal axis at the upstream end of the inductively coupled plasma torch and comprising an elongated conduit which extends through at least an upstream portion of the plasma confinement tube for introducing the elongated member of feed material axially into the plasma confinement tube; and
an atomization nozzle at the downstream end of the plasma confinement tube, wherein the atomization nozzle comprises an aperture coaxial with the longitudinal axis for receiving the elongated member of feed material from the injection probe through the plasma confinement tube, and wherein the atomization nozzle is configured for producing, using plasma from the plasma confinement tube, at least one feed material atomizing plasma jet for surface melting and atomizing feed material of a forward end of the elongated member by exposure to the at least one feed material atomizing plasma jet.