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    METHOD FOR THE RECOVERY OF ZINC
    6.
    发明申请
    METHOD FOR THE RECOVERY OF ZINC 有权

    公开(公告)号：US20210047709A1

    公开(公告)日：2021-02-18

    申请号：US17042261

    申请日：2019-03-29

    Applicant: TATA STEEL NEDERLAND TECHNOLOGY B.V.

    Inventor： Johannes HAGE ,  Hendrikus Koenraad Albertus MEIJER ,  Tim PEETERS

    IPC: C22B19/36 ,  C22B19/08

    Abstract: A method for the recovery of zinc from zinc containing materials using a smelting apparatus for smelting a metalliferous feed material, wherein the smelting apparatus includes a smelting vessel, a smelt cyclone mounted on the smelting vessel and in connection with the inside of the smelting vessel and an off-gas duct connected to the smelt cyclone, and wherein the method includes the steps of: injecting the feed material with a carrier gas into the smelt cyclone, injecting an oxygen containing gas into the smelt cyclone, injecting coal with a carrier gas into the smelting vessel, injecting an oxygen containing gas into the smelting vessel, optionally injecting fluxes with a carrier gas into the smelting vessel, wherein the zinc containing materials are injected into the smelt cyclone and/or into the smelting vessel.

    METHOD OF RECOVERY OF ZINC AND OTHER METALS FROM METALLURGICAL FINES
    7.
    发明申请
    METHOD OF RECOVERY OF ZINC AND OTHER METALS FROM METALLURGICAL FINES 审中-公开

    公开(公告)号：US20180305789A1

    公开(公告)日：2018-10-25

    申请号：US15959251

    申请日：2018-04-22

    Applicant: American Zinc Recycling Corp.

    Inventor： John PUSATERI ,  Rege ZAGROCKI

    IPC: C22B19/36 ,  C22B1/04 ,  C22B19/08

    CPC classification number: C22B19/36 ,  C22B1/04 ,  C22B19/08

    Abstract: A method and recovering method of recovering zinc oxides and other metal oxides having an injection chamber where a mixture of natural gas and oxygen is formed and then ignited to form high temperature combustion gases of greater than 2000° C. with a high concentration of carbon monoxide. Then, the mixture is transported through a quiescent chamber to a feed chamber where the ignited high temperature combustion gases are mixed with finely divided material, including EAF dust. The mixture is transported to a reaction chamber, wherein zinc vapor and other metal vapors and molten slag particles are formed. The zinc vapor and other metal vapors are separated from the molten slag particles and transported to an insulated plenum. Zinc vapor and other metal vapors are mixed with air and become airborne zinc oxide and other metal oxides. The airborne zinc oxide and other metal oxides are collected.

    Method and apparatus for recovery and refining of zinc
    8.
    发明授权
    Method and apparatus for recovery and refining of zinc 失效
    ZINC的回收和精炼方法与装置

    公开(公告)号：US3778044A

    公开(公告)日：1973-12-11

    申请号：US3778044D

    申请日：1971-07-13

    Applicant: BROWN C ,  TEMPLER M

    Inventor： BROWN C ,  TEMPLER M

    IPC: C22B19/04 ,  C22B19/16 ,  C22B19/36 ,  C22B19/14

    CPC classification number: C22B19/36 ,  C22B19/04 ,  C22B19/16 ,  Y02P10/232

    Abstract: A method and apparatus for recovering and refining zinc from scrap metals having a high zinc content. The scrap metals are melted in a conventional furnace and introduced in a molten state into the distillation zone of the apparatus of the invention. The apparatus comprises an atmospherically sealed vertical column having a distillation zone and a communicating superposed fractionation zone. Arranged within the vertical column is a plurality of vertically spaced horizontally staggered trays constructed of a suitable refractory material. Molten material is continuously introduced into the apparatus through a metal seal and flows downwardly in a circuitous path over the trays disposed in the distillation zone. The metal in each tray is heated to temperatures sufficient to vaporize zinc by means of precisely controllable radiant heating elements located immediately above and below each tray. The zinc vapors rise through the distilling zone in countercurrent with the descending molten metal, pass through the factionating column where various impurities are removed, and then are directed into a condenser wherein they are condensed to metallic zinc of high purity.

    Abstract translation: 一种用于从具有高锌含量的废金属中回收和精炼锌的方法和装置。 废金属在常规炉中熔化并以熔融状态引入本发明装置的蒸馏区。 该装置包括具有蒸馏区和连通的重叠分馏区的大气密封的垂直塔。 排列在垂直柱内的是由合适的耐火材料构成的多个垂直间隔开的水平交错的托盘。 熔融材料通过金属密封件连续地引入设备中，并且在设置在蒸馏区域中的托盘上的迂回路径中向下流动。 每个托盘中的金属被加热到足以通过位于每个托盘正上方和下方的精确可控的辐射加热元件来蒸发锌的温度。 锌蒸气与下降的熔融金属逆流通过蒸馏区，通过除去各种杂质的分馏塔，然后被引入冷凝器中，其中它们被冷凝成高纯度的金属锌。

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