A bauxite processing method including: preliminarily grinding bauxites; mixing the bauxites as ground with magnetic field treated water into a pulp; exposing the pulp in a reaction chamber to a rotating magnetic field created by rotating ferromagnetic elements, carried out in a vortex layer generated by ferromagnetic elements rotating at a speed of at least 2800 rpm, to achieve a magnetoelastic effect and provide forces and energies which enable metal reduction; and separating a resulting metal oxide mixture.

Device for treating particles having a vortex chamber defined by end walls at both ends and a circular wall, a rotation imparting device with a fluid feeder arranged in a mainly tangential direction, a particle outlet and a central fluid outlet, an auxiliary chamber coaxially arranged with the vortex chamber defining a treating zone, which auxiliary chamber has a circular outer wall and an end wall and opens into the vortex chamber through an opening in the end wall of the vortex chamber opposite the central fluid outlet, a device for injecting particles coaxially into the treating zone, and a device for feeding a treating fluid into the treating zone in mainly axial direction, wherein the ratio of the area of the opening to the cross-sectional area of the vortex chamber is less than 0.50.

Device for treating particles having a vortex chamber defined by end walls at both ends and a circular wall, a rotation imparting device with a fluid feeder arranged in a mainly tangential direction, a particle outlet and a central fluid outlet, an auxiliary chamber coaxially arranged with the vortex chamber defining a treating zone, which auxiliary chamber has a circular outer wall and an end wall and opens into the vortex chamber through an opening in the end wall of the vortex chamber opposite the central fluid outlet, a device for injecting particles coaxially into the treating zone, and a device for feeding a treating fluid into the treating zone in mainly axial direction, wherein the ratio of the area of the opening to the cross-sectional area of the vortex chamber is less than 0.50.

Vortex arc reactor apparatus and method provide a nozzle with converging, throat, and diverging portions. Input structure inputs a reactant and an oxidant into the converging portion. Ignition structure ignites the input reactant and oxidant. A vortex-creating structure creates a vortex of the ignited reactant and oxidant in the converging portion. The input structure, the vortex-creating structure, and the nozzle converging and throat portions are configured to provide a throat-portion-vortex of ignited reactant and oxidant that has an angular velocity which provides (i) negatively-charged particles in an exterior portion of the throat-portion-vortex, (ii) positively-charged particles in an interior portion of the throat-portion-vortex, and (iii) at least one arcing reaction between the positively-charged particles and the negatively-charged particles, to form syngas and at least one aromatic liquid in the nozzle diverging portion. Gas/liquid separation structure is preferably configured to separate the formed syngas from the at least one aromatic liquid.

Vortex arc reactor apparatus and method provide a nozzle with converging, throat, and diverging portions. Input structure inputs a reactant and an oxidant into the converging portion. Ignition structure ignites the input reactant and oxidant. A vortex-creating structure creates a vortex of the ignited reactant and oxidant in the converging portion. The input structure, the vortex-creating structure, and the nozzle converging and throat portions are configured to provide a throat-portion-vortex of ignited reactant and oxidant that has an angular velocity which provides (i) negatively-charged particles in an exterior portion of the throat-portion-vortex, (ii) positively-charged particles in an interior portion of the throat-portion-vortex, and (iii) at least one arcing reaction between the positively-charged particles and the negatively-charged particles, to form syngas and at least one aromatic liquid in the nozzle diverging portion. Gas/liquid separation structure is preferably configured to separate the formed syngas from the at least one aromatic liquid.

The disclosure discloses a method for preparing calcium oxide using multistage suspension preheater kiln. The steps of the method are: (1) the limestone powder is fed to the multistage suspension preheater kiln for preheating to 800 C. to 900 C.; (2) A preheated material is fed to a decomposition furnace, and calcined at 900 C. to 1100 C. for 25 s to 35 s; (3) A calcined material is fed to a rotary kiln, and calcined at 1100 C. to 1300 C. for 25 to 35 minutes, and finally cooled to obtain calcium oxide.

Vortex arc reactor apparatus and method provide a nozzle with converging, throat, and diverging portions. Input structure inputs a reactant and an oxidant into the converging portion. Ignition structure ignites the input reactant and oxidant. A vortex-creating structure creates a vortex of the ignited reactant and oxidant in the converging portion. The input structure, the vortex-creating structure, and the nozzle converging and throat portions are configured to provide a throat-portion-vortex of ignited reactant and oxidant that has an angular velocity which provides (i) negatively-charged particles in an exterior portion of the throat-portion-vortex, (ii) positively-charged particles in an interior portion of the throat-portion-vortex, and (iii) at least one arcing reaction between the positively-charged particles and the negatively-charged particles, to form syngas and at least one aromatic liquid in the nozzle diverging portion. Gas/liquid separation structure is preferably configured to separate the formed syngas from the at least one aromatic liquid.

Vortex arc reactor apparatus and method provide a nozzle with converging, throat, and diverging portions. Input structure inputs a reactant and an oxidant into the converging portion. Ignition structure ignites the input reactant and oxidant. A vortex-creating structure creates a vortex of the ignited reactant and oxidant in the converging portion. The input structure, the vortex-creating structure, and the nozzle converging and throat portions are configured to provide a throat-portion-vortex of ignited reactant and oxidant that has an angular velocity which provides (i) negatively-charged particles in an exterior portion of the throat-portion-vortex, (ii) positively-charged particles in an interior portion of the throat-portion-vortex, and (iii) at least one arcing reaction between the positively-charged particles and the negatively-charged particles, to form syngas and at least one aromatic liquid in the nozzle diverging portion. Gas/liquid separation structure is preferably configured to separate the formed syngas from the at least one aromatic liquid.

The present invention presents a system for and method of processing a particulate material, for example carbonaceous materials, food products or minerals, to produce a processed material having more desirable properties. The method comprises the steps of: introducing the particulate material into a chamber; providing a flow of fluid into said chamber for entraining the particulate material via inlets at a lower end of the chamber; and providing an exhaust of fluid out of the chamber via an outlet at an upper end of the chamber. The chamber comprises a processing zone having a substantially circular transverse cross-section, the fluid flow being introduced into the processing zone at a non-perpendicular angle with respect to a tangent of the substantially circular transverse cross-section of the processing zone to establish a fluid flow following a substantially helical path in the processing chamber. Said processing zone is provided in a central region of said chamber. Individual particulate material during processing in the processing zone is entrained by the fluid flow exceeding the terminal velocity of the particulate material, exits the processing zone in a radially outward direction, circulates to a base of the chamber and then returns to the processing zone in a repeated cycle. Individual particulate material can increase in mass or aggregate to form a mass of particulate material with larger mass during processing until its terminal velocity exceeds the fluid flow and thereby exits the processing zone by descending through an opening at the base of the chamber under gravity. A toroidal bed reactor is also provided.

A gas delivery system and method for delivering reactants such as a first gas through a first conduit and a second gas through at least one second conduit, for example, through a plurality of second conduits. The plurality of second conduits may each have a length, wherein at least a portion of the length is entirely disposed within the first conduit. In an implementation, the first conduit may deliver carbon monoxide and the one or more second conduits may deliver carbon monoxide doped with a catalyst such as iron pentacarbonyl. The first and second gases may be introduced into a reaction vessel such as a reactor chamber and used to form carbon nanotubes.