Abstract

(D) Contacting the gold-loaded DBC with an aqueous acid scrub of hydrochloric acid in a four-stage countercurrent scrub process to remove impurities, e.g., non-gold metal, from the DBC into the aqueous scrub solution to form an impurity-loaded aqueous scrub. Each stage of the solvent extraction circuit and the aqueous acid scrub circuit is equipped with a mixing assembly and a phase separation tank in a head-tail arrangement such that the mixing assembly of one stage is adjacent to the phase separation tank of the adjacent stage.

IPC Classes  ?

• B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• B01D 11/04 - Solvent extraction of solutions which are liquid
• C22B 3/26 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
• C22B 11/06 - Chloridising
• B01F 7/16 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a vertical axis
• B01F 15/00 - Accessories for mixers
• B01F 3/08 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed liquids with liquids; Emulsifying

Abstract

(D) Contacting the gold-loaded DBC with an aqueous acid scrub of hydrochloric acid in a four-stage countercurrent scrub process to remove impurities, e.g., non-gold metal, from the DBC into the aqueous scrub solution to form an impurity-loaded aqueous scrub. Each stage of the solvent extraction circuit and the aqueous acid scrub circuit is equipped with a mixing assembly and a phase separation tank in a head-tail arrangement such that the mixing assembly of one stage is adjacent to the phase separation tank of the adjacent stage.

IPC Classes  ?

• B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
• B01F 15/00 - Accessories for mixers
• B01D 11/04 - Solvent extraction of solutions which are liquid
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• C22B 3/26 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
• C22B 11/06 - Chloridising
• B01F 7/16 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a vertical axis
• B01F 3/08 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed liquids with liquids; Emulsifying

Abstract

A phase separation tank for separating an aqueous liquid from an organic liquid, the tank comprising: (A) A separation compartment having a sloped bottom wall and an aqueous liquid outlet; (B) An organic liquid compartment separated from the separation compartment by an organic separator of a height that allows for the overflow of organic liquid from the separation compartment to the organic compartment; (C) An aqueous liquid compartment separated from the organic liquid compartment by an aqueous separator and separated from the separation compartment by the organic compartment, the aqueous liquid compartment equipped with an aqueous liquid inlet; and (D) Means for transferring aqueous liquid from the aqueous liquid outlet of the separation compartment to the aqueous liquid inlet of the aqueous compartment.

IPC Classes  ?

• B01D 11/04 - Solvent extraction of solutions which are liquid
• B01D 17/02 - Separation of non-miscible liquids

Abstract

Each stage of the solvent extraction circuit and the aqueous acid scrub circuit is equipped with a mixing assembly and a phase separation tank in a head-tail arrangement such that the mixing assembly of one stage is adjacent to the phase separation tank of the adjacent stage.

IPC Classes  ?

• C22B 11/00 - Obtaining noble metals
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• B01D 11/04 - Solvent extraction of solutions which are liquid
• C22B 3/26 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
• C22B 11/06 - Chloridising
• B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
• B01F 7/16 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a vertical axis
• B01F 15/00 - Accessories for mixers
• B01F 3/08 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed liquids with liquids; Emulsifying

Abstract

(D) Means for transferring aqueous liquid from the aqueous liquid outlet of the separation compartment to the aqueous liquid inlet of the aqueous compartment.

IPC Classes  ?

• C02F 1/40 - Devices for separating or removing fatty or oily substances or similar floating material
• B01D 17/032 - Separation of non-miscible liquids by gravity, in a settling tank provided with special equipment for removing at least one of the separated liquids
• B01D 11/04 - Solvent extraction of solutions which are liquid
• B01D 17/02 - Separation of non-miscible liquids

Abstract

A process for the recovery of gold from a gold-bearing aqueous filtrate, the process comprising the steps of: (A) Contacting the aqueous filtrate with dibutyl carbitol (DBC) in a two-stage solvent extraction process to remove the gold from the aqueous filtrate into the DBC to form a gold-loaded DBC; and (D) Contacting the gold-loaded DBC with an aqueous acid scrub of hydrochloric acid in a four-stage countercurrent scrub process to remove impurities, e.g., non-gold metal, from the DBC into the aqueous scrub solution to form an impurity-loaded aqueous scrub. Each stage of the solvent extraction circuit and the aqueous acid scrub circuit is equipped with a mixing assembly and a phase separation tank in a head-tail arrangement such that the mixing assembly of one stage is adjacent to the phase separation tank of the adjacent stage.

IPC Classes  ?

• C22B 3/26 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
• B01D 11/04 - Solvent extraction of solutions which are liquid
• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
• C22B 11/06 - Chloridising
• B01F 7/16 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a vertical axis

Abstract

Molybdic oxide is recovered from molybdenite by a multistep process in which (A) the molybdenite is converted to soluble and insoluble molybdic oxide by pressure oxidation, (B) the insoluble molybdic oxide is converted to soluble molybdic oxide by alkaline digestion and then combined with the soluble molybdic oxide, and (C) the molybdenum values of the combined streams are extracted into an organic phase using a nonprimary amine. The extracted molybdenum values are recovered from the organic phase using aqueous ammonia to form ammonium dimolybdate (ADM) which is recovered as refined crystals from a two-step calcination process. Hallmarks of the process include one or more of economic ammonia recovery and recycle, use of ferrous sulfate to remove arsenic and/or phosphorus from the Mo-loaded aqueous ammonia strip liquor, two-stage calcination of ADM crystals, recovery of rhenium from a filtrate of the residual molybdenum precipitation stage, selenium removal from the liquid fraction from which rhenium is recovered, and caustic boil of the mother liquor from which the selenium is precipitated.

IPC Classes  ?

• C01G 39/00 - Compounds of molybdenum
• C01G 39/02 - OxidesHydroxides
• C01B 13/18 - Methods for preparing oxides or hydroxides in general by thermal decomposition of compounds, e.g. of salts or hydroxides
• C01C 1/02 - Preparation or separation of ammonia
• C01C 1/24 - Sulfates of ammonium
• C22B 3/28 - Amines
• C22B 34/34 - Obtaining molybdenum

Abstract

Molybdic oxide is recovered from molybdenite by a multistep process in which (A) the molybdenite is converted to soluble and insoluble molybdic oxide by pressure oxidation, (B) the insoluble molybdic oxide is converted to soluble molybdic oxide by alkaline digestion and then combined with the soluble molybdic oxide, and (C) the molybdenum values of the combined streams are extracted into an organic phase using a nonprimary amine. The extracted molybdenum values are recovered from the organic phase using aqueous ammonia to form ammonium dimolybdate (ADM) which is recovered as refined crystals from a two-step calcination process. Hallmarks of the process include one or more of economic ammonia recovery and recycle, use of ferrous sulfate to remove arsenic and/or phosphorus from the Mo-loaded aqueous ammonia strip liquor, two-stage calcination of ADM crystals, recovery of rhenium from a filtrate of the residual molybdenum precipitation stage, selenium removal from the liquid fraction from which rhenium is recovered, and caustic boil of the mother liquor from which the selenium is precipitated.

IPC Classes  ?

• C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes

Abstract

An apparatus and method for collecting, sorting and storing samples from multiple batches of copper cathode is disclosed. Samples are collected at a sampling station and transferred to a collection container. The samples are then transferred to a sorting container by way of chutes forming a continuous path from the collection container to the sorting container. The sorting container is affixed on the top surface of an automated carousel having a plurality of sorting containers for sorting samples from multiple batches. Samples in the sorting containers are recovered into storage containers through an access door panel and a funnel placed beneath the access door.

IPC Classes  ?

• B07C 5/36 - Sorting apparatus characterised by the means used for distribution
• B07C 5/38 - Collecting or arranging articles in groups
• G01N 1/04 - Devices for withdrawing samples in the solid state, e.g. by cutting

Abstract

A system, device, and method include a cell-powered first electronic device powered using electrical potential imposed across an electrolytic cell. The potential is voltage-boosted to accomplish this task. If the electrical potential imposed the cell is insufficient, the device can also be battery-powered. In any event, this device is in communication with one or more sensors in the electrolytic cell, as well as a second electronic device, and the first and second electronic devices wirelessly communicate. More specifically, the first electronic device wireless transmits data signals to the second electronic device, which receives the same. The first and second electronic devices are physically remote from one another, and they communicating over a private or public network, preferably using spread spectrum technology. In addition, the second electronic device also preferably transmits data signals to a computer for further processing of the data signals, and these arrangements can be used, for example, when producing copper.

IPC Classes  ?

• C25B 9/04 - Devices for current supply; Electrode connections; Electric inter-cell connections
• C25B 15/02 - Process control or regulation

Goods & Services

Non ferrous mattes; molybdenum sulphide and molybdenum oxide. Common metals and alloys; copper and cathode copper; copper concentrates; metallic ores.

Goods & Services

Non ferrous mattes; molybdenum sulphide and molybdenum oxide. Common metals and alloys; copper and cathode copper; copper concentrates; metallic ores. Gold and precious alloys thereof; gold bullion; silver dore.

Goods & Services

metal goods, namely, refined copper

Goods & Services

Metal goods, namely, refined copper Precious metals, namely, gold and silver ingots

Goods & Services

Sulphuric Acid; molybdenum oxide and sulphide; and selenium oxide and sulphide for use in industry. Coal and coal products. Wrought and unwrought common metals and alloys; copper and copper cathode; non- ferrous mattes and concentrates; molybdenum and molybdenum powder; selenium powder. Gold and precious alloys thereof; gold bullion; silver dore.

Goods & Services

metal goods originating from Utah, namely, copper cathode in sheet form, for use in further manufacture in general industry

Goods & Services

chemicals, namely, molybdenum, oxide, for use in further manufacture in general industry metal goods, namely, copper cathode in sheet form, for use in further manufacture in general industry

Goods & Services

Chemicals, namely, molybdenum oxide, for use in further manufacture in general industry [ and ] metal goods, namely copper cathode in sheet form, for use [ use ] in further manufacture in general industry

Goods & Services

chemicals, namely, sulfuric acid, for use in further manufacture in general industry

Abstract

A method and system for the copper anode refining is provided in which coherent jet technology is employed to heat the molten blister copper and/or melt scrap copper charges using a melting flame, oxidize the sulfur in the molten blister copper, and reduce the oxygen in the molten blister copper using top-blown coherent jet gas streams from one or more multi-functional, coherent jet lance assemblies. The present system and method employs a microprocessor-based controller operatively controlling the flow of an oxygen-containing gas, an inert gas, a reducing agent and a fuel to the coherent jet lance. The disclosed copper anode refining system and method greatly improves copper production while lowering oxidation /reduction cycle times and minimizing NOx emissions.

IPC Classes  ?

• C21C 5/46 - Details or accessories
• C22B 9/05 - Refining by treating with gases, e.g. gas flushing
• C22B 15/04 - Obtaining copper in reverberatory furnaces
• C22B 15/14 - Refining
• F23D 14/32 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air

Abstract

A system, device, and method include a cell-powered first electronic device
powered using electrical potential imposed across an electrolytic cell. The
potential is voltage-boosted to accomplish this task. If the electrical
potential imposed the cell is insufficient, the device can also be battery-
powered. In any event, this device is in communication with one or ore sensors
in the electrolytic cell, as well as a second electronic device, and the first
and second electronic devices wirelessly communicate. More specifically, the
first electronic device wireless transmits data signals to the second
electronic device, which receives the same. The first and second electronic
devices are physically remote from one another, and they communicating over a
private or public network, preferably using spread spectrum technology. In
addition, the second electronic device also preferably transmits data signals
to a computer for further processing of the data signals, and these
arrangements can be used, for example, when producing copper.

IPC Classes  ?

• C25C 7/06 - Operating or servicing

Abstract

A method and system for method for removing solid accretions from a copper anode or holding furnace using coherent jet lance assembly directed towards the solid accretions in the bottom portion of the copper anode furnace to melt the solid accretions over an extended period of time without damage to the furnace refractory proximate a point of stream impingement.

IPC Classes  ?

• F27D 25/00 - Devices for removing incrustations