Abstract: An improved method for recovering metals from spent catalysts, particularly from spent slurry catalysts, is disclosed. The method and associated processes comprising the method are useful to recover spent catalyst metals used in the petroleum and chemical processing industries. The method generally involves a combination of a pyrometallurgical and a hydrometallurgical method and includes forming a potassium carbonate calcine of a KOH leach residue of the spent catalyst containing an insoluble Group VIIIB/Group VIB/Group VB metal compound combined with potassium carbonate, and extracting and recovering soluble Group VIB metal and soluble Group VB metal compounds from the potassium carbonate calcine.

Abstract: There is described an aerosol-forming substrate for use in combination with an inductive heating device. The aerosol-forming substrate comprises a solid material capable of releasing volatile compounds that can form an aerosol upon heating of the aerosol-forming substrate, and at least a first susceptor material for heating of the aerosol-forming substrate. The first susceptor material has a first Curie-temperature and is arranged in thermal proximity of the solid material. The aerosol-forming substrate comprises at least a second susceptor material having a second Curie-temperature which is arranged in thermal proximity of the solid material. The first and second susceptor materials have specific absorption rate (SAR) outputs which are distinct from each other.

Abstract: An aerosol-generating device is provided for generating an aerosol by inductive heating of an aerosol-forming substrate, the device including: a device housing including a cavity to removably receive the substrate; first and second induction coils arranged and configured to generate an alternating magnetic field within first and second sections of the cavity, respectively; and a control circuit to selectively drive the first and the second coils to selectively generate an alternating magnetic field within the first and the second sections, respectively, the circuit including: a first LC resonator circuit including the first coil and a first capacitor, and a second LC resonator circuit including the second coil and a second capacitor, the first and the second circuits having a first and a second resonance frequency, respectively, and a driving oscillator circuit including a common oscillator coil to selectively generate an alternating magnetic oscillator field. An aerosol-generating system is also provided.

Abstract: An aerosol generating system including a housing defining an airflow outlet; a liquid aerosol-forming substrate; an aerosol generator, configured to generate an aerosol from the liquid aerosol-forming substrate; a perforated plate disposed between the aerosol generator and the airflow outlet, the perforated plate defining a plurality of apertures extending through the perforated plate; and an electrode disposed between the aerosol generator and the perforated plate, wherein the perforated plate is electrically conductive, and wherein the electrode and the perforated plate are configured to generate an electrical potential.

Abstract: There is provided a cartridge for use in an aerosol-generating system, the aerosol-generating system including an aerosol-generating device, the cartridge configured to be used with the device, wherein the device includes a device housing, an inductor coil positioned on or within the housing, and a power supply connected to the inductor coil and configured to provide a high frequency oscillating current to the inductor coil, the cartridge including a cartridge housing containing an aerosol-forming substrate and a ferrite mesh susceptor element positioned to heat the aerosol-forming substrate.

Abstract: An aerosol-generating system is provided, including: an aerosol-generating article including an aerosol-forming substrate, and an aerosol-generating device having a housing, a heating chamber defining a heating zone and sized to receive the substrate therein, an induction element around the zone, a power supply, and a controller connected to the element to provide an alternating electric current to the element to generate an alternating magnetic field within the zone, the element being controlled to sequentially provide a first alternating magnetic field having a first frequency for a first period of time followed by a second alternating magnetic field having a second frequency for a second period of time, the element being first and second coils, the first and the second coils being actuatable to provide the first and the second fields, respectively, and the article and the chamber being arranged so the article is partially received within the chamber.

Abstract: A cartridge is provided for an electrically heatable aerosol-generating system, the cartridge including: an aerosol-forming substrate including a liquid held in a capillary material; and a susceptor element including first and second fluid-permeable portions, the first fluid-permeable portion being disposed on a first side of the capillary material, and the second fluid-permeable portion being disposed on a second side of the capillary material opposite to the first side such that the capillary material is located in between the first and the second fluid-permeable portions of the susceptor element, the susceptor element being electrically isolated from other electrically conductive components. A heater assembly for an electrically heatable aerosol-generating system, and an electrically heatable aerosol-generating system, are also provided.

Abstract: An aerosol-generating device is provided, including: an induction heater configured to heat an aerosol-forming substrate and including an induction coil and a heating element, the heating element being arrangeable within the induction coil, the induction coil including a first side opening along a longitudinal length of the induction coil, and the first side opening being configured to enable access to the heating element; and a housing, the induction coil being arranged within the housing, and the housing including a second side opening, which corresponds to the first side opening of the induction coil within the housing. A method for manufacturing the aerosol-generating device is also provided.

Abstract: An aerosol-generating system including a liquid storage portion is provided, the portion including a rigid housing holding a liquid aerosol-forming substrate, the housing having an opening and a fluid permeable heater assembly including a plurality of electrically conductive filaments, wherein the fluid permeable heater assembly is fixed to the housing and extends across the opening of the housing. The provided heater assembly that extends across an opening of a liquid storage portion allows for a robust construction that is relatively simple to manufacture and allows for a large contact area between the heater assembly and liquid aerosol-forming substrate. The heater assembly may be substantially flat, allowing for simple manufacture.

Abstract: An aerosol-generating article is provided, including a cartridge, the cartridge including: a first compartment including a nicotine source; a second compartment including a second substance source; a first susceptor arranged within the nicotine source in the first compartment and being configured to heat the nicotine source; and a second susceptor arranged within the second substance source in the second compartment and being configured to heat the second substance source.

Abstract: An inductively heatable susceptor for use with an inductively heated aerosol-generating device or system includes an open-porous inductively heatable ceramic material configured to hold an aerosol-forming liquid and configured to heat the aerosol-forming liquid under the influence of an alternating electromagnetic field. A cartridge for use with an aerosol-generating device includes an aerosol-forming liquid and a susceptor. An aerosol-generating device includes a susceptor.

Abstract: An aerosol-generating article may include a base layer, at least one aerosol-forming substrate positioned on the base layer, and a cover layer overlying the at least one aerosol-forming substrate and secured to the base layer so that the at least one aerosol-forming substrate is sealed between the base layer and the cover layer. The cover layer includes a polymeric film comprising at least one of a plurality of micropores and a plurality of microperforations.

Abstract: An aerosol-generating device is provided, including: a housing having a chamber, an induction coil around at least part of the chamber; a heating compartment to receive an aerosol-generating article, being detachably insertable into the chamber, and including a cavity to receive the article; and a heating element arrangeable within and extending into the cavity in a longitudinal direction, configured to penetrate an aerosol-forming substrate included in the article and received in the cavity, the compartment further including a first open end to receive the article, and a second, base end opposite the first open end, the first open end and the base end connected by side surfaces including openings and locking elements, and the chamber including recesses corresponding to the locking elements to facilitate a snap-fit when the compartment is inserted into the chamber, the compartment further including a press button to allow release of the snap-fit connection.

Abstract: An inductive heating device heats an aerosol-forming substrate including a susceptor. The device includes a device housing, a DC power source for providing a DC supply voltage and a DC current, power supply electronics including a DC/AC converter, the DC/AC converter including an LC load network including a series connection of a capacitor and an inductor having an ohmic resistance, a cavity in the device housing for accommodating a portion of the aerosol-forming substrate to inductively couple the inductor of the LC load network to the susceptor. The inductor is embedded in the device housing at a proximal end of the device housing to surround the cavity which is also arranged at the proximal end of the device housing. A microcontroller determines from the DC supply voltage and the DC current an apparent ohmic resistance, and from the apparent ohmic resistance the temperature of the susceptor.

Abstract: An inductive heater assembly for an aerosol-generating device is provided, the assembly including: at least one inductor coil configured to generate a varying magnetic field when a varying electric current flows through the coil; at least one susceptor arranged to be penetrated by the magnetic field generated by the coil to heat the susceptor; at least one temperature sensor arranged to determine a temperature of the susceptor, the temperature sensor includes first and second resistive sensing elements, the first element being connected to the second element, and the first element being positioned relative to the second element such that a current induced in the first element by the magnetic field opposes a current induced in the second element by the magnetic field. An aerosol-generating device including the inductive heater assembly, control circuitry, and a power source, is also provided.

Abstract: An aerosol generating system including a housing defining an airflow outlet; a liquid aerosol-forming substrate; an aerosol generator, configured to generate an aerosol from the liquid aerosol-forming substrate; a perforated plate disposed between the aerosol generator and the airflow outlet, the perforated plate defining a plurality of apertures extending through the perforated plate; and an electrode disposed between the aerosol generator and the perforated plate, wherein the perforated plate is electrically conductive, and wherein the electrode and the perforated plate are configured to generate an electrical potential.

Abstract: There is provided a method of controlling an aerosol-generating system including an aerosol-generating device including a cavity to receive an aerosol-forming substrate, an inductive heating arrangement including an inductive heating element including a susceptor heatable by penetration with a varying magnetic field to heat the substrate, first and second inductor coils, and a power supply; the method including initiating heating of the substrate in the cavity by a first varying current in the first coil to generate a first varying magnetic field that heats a first portion of the element, and controlling the first current to increase a temperature of the first portion with a first profile; and subsequently driving a second varying current in the second coil to generate a second varying magnetic field that heats a second portion of the element, and controlling the second current to increase a temperature of the second portion with a second profile.

Abstract: An inductive heating element for an aerosol-generating system is provided, the inductive heating element including: a first susceptor, the first susceptor being a tubular susceptor defining an inner cavity configured to receive an aerosol-forming substrate; a second susceptor, the second susceptor being a tubular susceptor defining an inner cavity configured to receive aerosol-forming substrate; and a separation between the first susceptor and the second susceptor, the separation thermally insulating the first susceptor from the second susceptor. An inductive heating arrangement, an aerosol-generating device, and an aerosol-generating system are also provided.

Abstract: The present invention relates to an electrical heating assembly of an aerosol-generating device for resistively heating an aerosol-forming substrate. The heating assembly comprises a control circuit configured to provide an AC driving current. The heating assembly further comprises an electrically resistive heating element comprising an electrically conductive ferromagnetic or ferrimagnetic material for heating the aerosol-forming substrate. The heating element is operatively coupled with the control circuit and configured to heat up due to Joule heating when passing an AC driving element provided by the control circuit current through the heating element. The present invention further relates to an aerosol-generating device for use with an aerosol-forming substrate, wherein the aerosol-generating device comprises a heating assembly according to the invention.

Abstract: An aerosol-generating device is provided, including: an inductive heating arrangement to heat an aerosol-forming substrate and including: a susceptor arrangement heatable by penetration with a varying magnetic field, a first LC circuit having a resonance frequency and including a first inductor coil and capacitor, and a second LC circuit having the same resonance frequency and including a second inductor coil and capacitor; and a controller to drive the first and second circuits with respective first and second currents for generating respective first and second alternating magnetic fields for heating respective first and second portions of the susceptor, supply the first and currents with the resonance frequency a different frequency, respectively, supply the first current to the first circuit during a first phase to increase the first portion to a first operating temperature, and supply the first current with resonance frequency of the circuits during the first phase.