Method for gold recovery and extraction from electronic waste or gold containing minerals, ores and sands

    公开(公告)号:US11718893B2

    公开(公告)日:2023-08-08

    申请号:US16759751

    申请日:2018-11-01

    CPC classification number: C22B11/06 C22B1/005 C22B11/025

    Abstract: A method for recovery of gold from gold-containing materials, such as electronic waste material, minerals and sands is described. The method includes crushing the gold containing material to obtain a particulate material. The particulate material is then preheated in an oxygen-containing gas environment in a preheating zone. The method also includes mixing the oxidized particulate material with a chlorine-containing material and treating the mixture in a reaction zone. The treatment is carried out by heating the mixture to provide thermal decomposition of the chlorine-containing material and produce a chlorine-containing gas mixture, and by applying an electromagnetic field to the chlorine-containing gas mixture to provide ionization of chlorine. A volatile gold-containing chloride product, produced in the reaction zone as a result of a chemical reaction between gold and chlorine ions, is then cooled to convert the volatile gold-containing chloride product into solid phase gold-containing materials.

    QUANTUM COMPUTING DEVICE
    240.
    发明申请

    公开(公告)号:US20230004850A1

    公开(公告)日:2023-01-05

    申请号:US17781389

    申请日:2020-12-02

    Abstract: Provided is a quantum computing device comprising a carbon nanotube, a superconducting substrate in quantum proximity to the nanotube and being in a superconducting state having a pairing correlation matrix with a substantial spin-triplet component in a direction perpendicular to the nanotube, and a magnet arranged to provide a longitudinal magnetic field along a longitudinal axis of the nanotube. Further provided is a quantum computing device comprising at least three substrates made of a superconductor material and each in a superconducting state, and a non-superconducting structure made of a material in which the electrons' closed trajectories experience strong spin-orbit coupling interactions and being in quantum proximity to the substrates. The sum of the phase differences between the order parameters of all of the substrates is at least π.

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