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Rio Tinto Alcan International Limited patents


Recent patent applications related to Rio Tinto Alcan International Limited. Rio Tinto Alcan International Limited is listed as an Agent/Assignee. Note: Rio Tinto Alcan International Limited may have other listings under different names/spellings. We're not affiliated with Rio Tinto Alcan International Limited, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "R" | Rio Tinto Alcan International Limited-related inventors


An assembly body and electrode for electrolysis

An assembly body including a cermet member, a metal member and an intermediate member bonded to the cermet member and the metal member, wherein the cermet member includes an oxide phase and a metal phase, the intermediate member includes at least a first intermediate layer and a second intermediate layer, the first intermediate layer is bonded to the cermet member, the first intermediate layer includes at least a first metal m1, the second intermediate layer includes at least a second metal m2, a melting point of the first metal m1 is lower than the second metal m2, a weight concentration of m1 at the first intermediate layer is higher than the weight concentration of m1 at the second intermediate layer, and the weight concentration of m2 at the second intermediate layer is higher than the weight concentration of m2 at the first intermediate layer.. . ... Rio Tinto Alcan International Limited

Rio Tinto Alcan International Limited

. . ... Rio Tinto Alcan International Limited

Aluminium smelter and method to compensate for a magnetic field created by the circulation of the electrolysis current of said aluminium smelter

This aluminum smelter comprises a line of electrolytic cells arranged transversely to the line, one of the cells comprising anode assemblies and electrical conductors mounted and connecting the anode assemblies. Rising and connecting conductors extend upwardly along two opposite longitudinal edges of the cell. ... Rio Tinto Alcan International Limited

Rio Tinto Alcan International Limited

. . ... Rio Tinto Alcan International Limited

Anode assembly

Anode assembly (100) comprising an anode (3) and an anode support (4) for the production of aluminium, characterized in that the anode assembly (100) comprises an electrical connecting element (1) to electrically connect the anode support (4) with the anode (3), and at least one thermally insulating element (6) arranged to reduct heat transfer between the anode (3) and the anode support (4) during the production of aluminium.. . ... Rio Tinto Alcan International Limited

Rio Tinto Alcan International Limited

. . ... Rio Tinto Alcan International Limited

Aluminum alloy combining high strength, elongation and extrudability

An aluminum alloy includes, in weight percent, 0.70-0.85 si, 0.14-0.25 fe, 0.25-0.35 cu, 0.05 max mn, 0.75-0.90 mg, 0.12-0.18 cr, 0.05 max zn, and 0.04 max ti, the balance being aluminum and unavoidable impurities. The alloy may be suitable for extruding, and may be formed into an extruded alloy product.. ... Rio Tinto Alcan International Limited

Aqua-catalysed chalked lime scrubbing processes and systems

A dry scrubbing system and process wherein an acid gas comprising at least one pollutant is modified in a humid zone of a duct such that a relative humidity of between 2% and 90% is achieved. The humidified gas is then contacted with chalked lime in a reaction zone. ... Rio Tinto Alcan International Limited

Screw press with filter plates

A screw press for separating liquid from a solid-liquid mixture includes a casing having inlet and outlet sections, and a filter section there between. The filter section includes an axially extending stack of coplanar filtration plates defining a core passage for receiving a screw configured to convey the solid-liquid mixture from the inlet section to the outlet section while compressing and dewatering the solid-liquid mixture by forcing at least part of the liquid content of the mixture to be expelled out of the casing through inter-plate gaps defined between each pair of adjacent filtration plates. ... Rio Tinto Alcan International Limited

Modular screw press

A screw press includes a filter casing having inlet and outlet sections and a filter section therebetween. A screw is mounted in the casing for conveying a solid-liquid mixture from the inlet section to the outlet section while compressing the solid-liquid mixture and forcing at least part of a liquid content thereof to be expelled out of the filter casing. ... Rio Tinto Alcan International Limited

Sealing system for tank rotary shaft

A seal arrangement allowing in-line maintenance and replacement of packing, seals and bushings of a rotary shaft driving a tool extending inside a fluid holding tank. The rotary shaft and associated seals are mounted in an extractable cartridge removably insertable in sealing engagement within a housing projecting outwardly from the tank. ... Rio Tinto Alcan International Limited

Aluminum alloy combining high strength and extrudability, and low quench sensitivity

An aluminum alloy includes, in weight percent, 0.70-0.85 si, 0.14-0.25 fe, 0.25-0.35 cu, 0.02-0.08 mn, 0.75-0.90 mg, 0.04-0.08 cr, 0.05 max zn, and 0.04 max ti, the balance being aluminum and unavoidable impurities. The minimum mn content may be 0.03 wt. ... Rio Tinto Alcan International Limited

Process and installation for producing alumina trihydrate by alkaline digestion of bauxite ore

A process for producing alumina trihydrate includes a digestion step, a separation step, and a precipitation step the separation step including: b1) pretreating a slurry from the digestion step by adding a flocculant to said slurry and mixing the flocculant and the slurry, b2) settling the resulting flocculated slurry in a gravity settler vessel, b3) determining a measured value representative of the concentration of solid particles in the resulting clarified liquor, b4) comparing the measured value with a predetermined threshold, b5) feeding said clarified liquor directly to the precipitation step, while the measured value is less than said predetermined threshold, and b6) redirecting said clarified liquor to the pre-treatment step b1), when the measured value is more than said predetermined threshold. An installation may be configured for operating said process.. ... Rio Tinto Alcan International Limited

Settler for decanting mineral slurries & method for separating clarified liquid from thickened slurry of said mineral slurries

A settler for decanting mineral slurries includes a tank having a side wall, a bottom and a top, an outlet for a thickened slurry at the bottom of the tank, a first overflow outlet for withdrawing an overflow stream of a clarified liquid, a slurry inlet means for introducing fresh slurry into the tank, the slurry inlet means having a slurry opening through which fresh slurry joins a body of slurry in the tank, and a stirrer having a vertical axis around which the stirrer rotates or reciprocates, in said settler the slurry opening is displaced laterally relative to said vertical axis of the stirrer and said slurry inlet means comprises mixing means. A separation installation includes the above settler and a method for separating a clarified liquid from a thickened slurry of a mineral slurry.. ... Rio Tinto Alcan International Limited








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