Abstract: A process for purifying and producing coated high purity particulate graphite materials suitable for use in lithium-ion batteries (LiBs) is described herein. More specifically, the process comprises agglomerating a graphite feed or treating a graphite feed with an agglomerating agent to produce an agglomerated particulate graphite feed; and reacting the agglomerated particulate graphite feed in the presence of a chlorine-containing gas to produce a mixture comprising a purified agglomerated particulate graphite material and a chlorine-containing gas laden with chlorinated impurities. The process may further comprise an alkaline leaching step. A coated particulate graphite material comprising a purity in excess of 99.95 wt.% C. and its use as anode material in rechargeable LiBs is also disclosed.

Abstract: The invention relates to a method for linking an end (9) of a shaft (8) of a tachometer (7) positioned in a landing gear hub (1) and a wheel (2) mounted to rotate on said hub, the method comprising the step of equipping the wheel with a housing (14) suitable for receiving the end of the shaft of a tachometer and driving the shaft in rotation with the wheel, the housing comprising a bearing member (17) protruding inside the housing to be pushed back by the end of the shaft against an elastic member (18) to take up any play between the end of the shaft and the housing. The invention also relates to a bush ensuring application.

Abstract: The system is provided for generating a mixed methane gas feed stream using at least one source of biogas and an alternate source of methane gas. The system includes a biogas subsystem, a control device for the methane gas from the at least one alternate source of methane gas, and a vertically-extending gas mixing vessel. A method of controlling a methane gas mass flow rate of a mixed methane gas feed stream is also disclosed. The proposed concept is particularly well adapted for situations where an uninterrupted and relatively constant input of methane gas is required to ensure an optimum operation of, for instance, a LMG production plant.

Abstract: The method is carried out for continuously producing a liquefied methane gas (LMG) from a pressurized mixed methane gas feed stream. It is particularly well adapted for use in relatively small LMG distributed production plant, for instance those ranging from 400 to 15,000 MT per year, and/or when the mixed methane gas feed stream has a wide range of nitrogen-content proportions, including nitrogen being substantially absent. The proposed concept can also be very useful in the design of medium-scale and/or large-size plants, including ones where the nitrogen content always remains above a certain threshold. The methods and arrangements proposed herein can mitigate losses of methane gas when venting nitrogen, for instance in the atmosphere.

Abstract: The invention relates to a method for linking an end (9) of a shaft (8) of a tachometer (7) positioned in a landing gear hub (1) and a wheel (2) mounted to rotate on said hub, the method comprising the step of equipping the wheel with a housing (14) suitable for receiving the end of the shaft of a tachometer and driving the shaft in rotation with the wheel, the housing comprising a bearing member (17) protruding inside the housing to be pushed back by the end of the shaft against an elastic member (18) to take up any play between the end of the shaft and the housing. The invention also relates to a bush ensuring application.

Abstract: The method is carried out for continuously producing a liquefied methane gas (LMG) from a pressurized mixed methane gas feed stream. It is particularly well adapted for use in relatively small LMG distributed production plant, for instance those ranging from 400 to 15,000 MT per year, and/or when the mixed methane gas feed stream has a wide range of nitrogen-content proportions, including nitrogen being substantially absent. The proposed concept can also be very useful in the design of medium-scale and/or large-size plants, including ones where the nitrogen content always remains above a certain threshold. The methods and arrangements proposed herein can mitigate losses of methane gas when venting nitrogen, for instance in the atmosphere.

Abstract: The system is provided for generating a mixed methane gas feed stream using at least one source of biogas and an alternate source of methane gas. The system includes a biogas subsystem, a control device for the methane gas from the at least one alternate source of methane gas, and a vertically-extending gas mixing vessel. A method of controlling a methane gas mass flow rate of a mixed methane gas feed stream is also disclosed. The proposed concept is particularly well adapted for situations where an uninterrupted and relatively constant input of methane gas is required to ensure an optimum operation of, for instance, a LMG production plant.

Abstract: The gas flare system includes a vertical flare stack having an opened top end and a bottom floor wall. A weatherproof protective hood arrangement prevents rain and snow from entering through the opened top end. The gas flare system also includes a burner arrangement provided through the bottom floor wall. The burner arrangement receives a waste gas stream from a waste gas circuit and also primary air. Secondary air orifices around the burner supply secondary air coming from a plenum housing located directly underneath the bottom floor wall. The gas flare system can destroy the flammable gas in the waste gas stream with a combustion efficiency of more than 99% under almost any operating conditions. It can start automatically and operate efficiently without any supervision under any possible atmospheric conditions. A method of destroying a flammable gas in a waste gas stream is also disclosed.

Abstract: A process for upgrading a precious metals-containing concentrate or residue results in near-quantitave removal of base metals and several impurity elements at elevated temperatures. The precious metals-containing concentrate or residue is exposed to oxygen or an oxygen-containing environment in an oxidative pre-treatment step followed by treatment with a hydrochlorinating agent in a hydrochlorination step to form an upgraded concentrate or residue.

Abstract: The system is provided for continuously separating landfill gas in a raw multi-phase stream coming from a landfill gas collector. The system includes an atmospheric tank and an elongated separator vessel mounted substantially upright above the tank bottom. The elongated separator vessel includes a mid-level inlet that is configured and disposed to be in fluid communication with the landfill gas collector pipe, an upper gas outlet located vertically above the mid-level inlet, and a bottom-opened discharge end that is located vertically below the mid-level inlet. A method of pretreating a raw multi-phase stream captured from a landfill site is also disclosed. The proposed concept provides a relatively simple arrangement that can be made sufficiently rugged to perform a pretreatment of the raw multi-phase stream in a continuous manner and with a very minimal intervention from landfill operators under almost any weather and operating conditions.

Abstract: The gas flare system includes a vertical flare stack having an opened top end and a bottom floor wall. A weatherproof protective hood arrangement prevents rain and snow from entering through the opened top end. The gas flare system also includes a burner arrangement provided through the bottom floor wall. The burner arrangement receives a waste gas stream from a waste gas circuit and also primary air. Secondary air orifices around the burner supply secondary air coming from a plenum housing located directly underneath the bottom floor wall. The gas flare system can destroy the flammable gas in the waste gas stream with a combustion efficiency of more than 99% under almost any operating conditions. It can start automatically and operate efficiently without any supervision under any possible atmospheric conditions. A method of destroying a flammable gas in a waste gas stream is also disclosed.

Abstract: The system is provided for continuously separating landfill gas in a raw multi-phase stream coming from a landfill gas collector. The system includes an atmospheric tank and an elongated separator vessel mounted substantially upright above the tank bottom. The elongated separator vessel includes a mid-level inlet that is configured and disposed to be in fluid communication with the landfill gas collector pipe, an upper gas outlet located vertically above the mid-level inlet, and a bottom-opened discharge end that is located vertically below the mid-level inlet. A method of pretreating a raw multi-phase stream captured from a landfill site is also disclosed. The proposed concept provides a relatively simple arrangement that can be made sufficiently rugged to perform a pretreatment of the raw multi-phase stream in a continuous manner and with a very minimal intervention from landfill operators under almost any weather and operating conditions.

Abstract: A process for upgrading a precious metals-containing concentrate or residue results in near-quantitave removal of base metals and several impurity elements at elevated temperatures. The precious metals-containing concentrate or residue is exposed to oxygen or an oxygen-containing environment in an oxidative pre-treatment step followed by treatment with a hydrochlorinating agent in a hydrochlorination step to form an upgraded concentrate or residue.

Abstract: A method and an apparatus to obtain a surface mapping of a ballistic piece of evidence (BPOE) under examination, such as a bullet or a spent cartridge case, that can be used thereafter as a 3D signature for identifying purpose during ballistic test comparison. The method comprises providing a measurement unit adapted to acquire a relief map of the surface of the BPOE and acquiring with the measurement unit the relief map of the surface to thereby obtain the mapping of the surface of the BPOE. Preferably, the measurement unit of the present invention comprises a confocal sensor such as confocal microscope. Also, the present invention includes acquiring the relief map of the bullet surface or of the cartridge case surface by acquiring and assembling a mosaic of regional reliefs that are partly overlapping with their surroundings regional reliefs.

Abstract: Configurations of an inline roller skate comprising a base, wheels, and at least one rocker pivotally mounted to the base and receiving at least two of the wheels. In accordance with one aspect, the inline roller skate further comprises a bias element positioned between the rocker and the base and biasing the rocker to an equilibrium position relative to the base. In accordance with an other aspect, the inline roller skate further comprises a rocker stop made integral to the base and defining a limit to the pivoting movement of the rocker in one angular direction by abutment therewith. In accordance with an other aspect, the inline roller skate further comprises a brake made integral to the base and having a concave frictional surface with an inversed-V shape.

Abstract: The invention relates to a device for adjusting the pressure in the chambers of a hydraulic jack comprising a hollow valve seat extending substantially longitudinally between two end sections, the body of the valve seat being connected to a source of pressurised fluid, each of the end sections of the valve seat being linked to a chamber of the hydraulic jack and adapted to receive a valve allowing to control the refilling with hydraulic fluid of said chamber of the jack, characterised in that a valve return spring is placed inside said valve seat and in that each of the ends of said valve return spring is attached to one of said valves.

Abstract: A method and an apparatus to obtain a surface mapping of a ballistic piece of evidence (BPOE) under examination, such as a bullet or a spent cartridge case, that can be used thereafter as a 3D signature for identifying purpose during ballistic test comparison. The method comprises providing a measurement unit adapted to acquire a relief map of the surface of the BPOE and acquiring with the measurement unit the relief map of the surface to thereby obtain the mapping of the surface of the BPOE. Preferably, the measurement unit of the present invention comprises a confocal sensor such as confocal microscope. Also, the present invention includes acquiring the relief map of the bullet surface or of the cartridge case surface by acquiring and assembling a mosaic of regional reliefs that are partly overlapping with their surroundings regional reliefs.

Abstract: A new method for the electrolytic production of aluminum, using a new electrolyte composition and low temperature operation, is provided. The electrolyte comprises a mixture of aluminum fluoride-potassium fluoride with from about 2 wt. % to 6 wt. % of alumina. The new electrolyte allows for the electrolytical reduction of alumina at temperatures as low as 700° C. The lower temperature allows for the use of inert anodes, and is conducive to the use of wetted cathodes. The new electrolyte mixture has a higher solubility for alumina and remains entirely liquid, even with 5 wt. % of alumina present in the electrolyte during electrolysis. Oxygen (O2) is the only gas generated during alumina electrolysis with the new electrolyte and the inert anodes, thus eliminating the production of greenhouse gases. Anodes and cathodes can be mounted in either a vertical, horizontal, or some other configuration.

Abstract: The invention relates to a device for adjusting the pressure in the chambers of a hydraulic jack comprising a hollow valve seat extending substantially longitudinally between two end sections, the body of the valve seat being connected to a source of pressurised fluid, each of the end sections of the valve seat being linked to a chamber of the hydraulic jack and adapted to receive a valve allowing to control the refilling with hydraulic fluid of said chamber of the jack, characterised in that a valve return spring is placed inside said valve seat and in that each of the ends of said valve return spring is attached to one of said valves.

Abstract: A structure comprising firstly a differential sensor of linear displacement comprising a body and a core slidably mounted relative to said body, and secondly a rod of a servo-control actuator in which the core is mounted, said rod terminating in an endpiece which has a bore in which the core is received close to its end, said bore and the core having complementary threads which co-operate to hold said core relative to said bore, and means enabling the engagement of the core in said bore to be adjusted, wherein said means comprise an adjustment screw extending through the actuator rod and whose thread co-operates with complementary means carried by the core so that turning movement applied to the adjustment screw by an operator gives rise to axial displacement of the core in the bore of the endpiece.