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DROSS GENERATION SUPPRESSION METHOD, METAL REFINEMENT METHOD, AND METAL REFINEMENT APPARATUS NEW 新技術説明会

外国特許コード F210010276
掲載日 2021年1月27日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2020JP017050
国際公開番号 WO2020218237
国際出願日 令和2年4月20日(2020.4.20)
国際公開日 令和2年10月29日(2020.10.29)
優先権データ
  • 特願2019-082166 (2019.4.23) JP
発明の名称 (英語) DROSS GENERATION SUPPRESSION METHOD, METAL REFINEMENT METHOD, AND METAL REFINEMENT APPARATUS NEW 新技術説明会
発明の概要(英語) This dross generation suppression method involves: setting an environmental atmosphere, in which a metal-containing object is placed, to a condition of having a water content less than that of the air environment of the periphery of the environmental atmosphere; and heating and melting the metal-containing object.
従来技術、競合技術の概要(英語) BACKGROUND ART
In the metal production process, heating and melting and molten metal treatment are performed. In the plating treatment, a plating bath in which a metal is melted is used, and in many cases, the metal is melted when the metal is bonded. Dross is mainly generated at the interface in contact with the atmosphere in the melt when such a melting treatment is performed. The main component of the dross is an oxide of a metal. The molten metal is oxidized at a rate of as many% of the molten amount to form dross (oxide). Dross reduces metal recovery efficiency and has a large environmental load. The inclusion of dross in the product causes troubles. For example, Non-Patent Document 1 describes a method of efficiently separating metal from dross.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • TOHOKU UNIVERSITY
  • 発明者(英語)
  • HIRAKI Takehito
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN WS ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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