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METHOD FOR PRODUCING ADSORBENT, ADSORBENT, AND TREATMENT METHOD NEW

外国特許コード F190009781
整理番号 (S2017-0781-N0)
掲載日 2019年5月7日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP021140
国際公開番号 WO 2018225639
国際出願日 平成30年6月1日(2018.6.1)
国際公開日 平成30年12月13日(2018.12.13)
優先権データ
  • 特願2017-112427 (2017.6.7) JP
発明の名称 (英語) METHOD FOR PRODUCING ADSORBENT, ADSORBENT, AND TREATMENT METHOD NEW
発明の概要(英語) A method for producing an adsorbent according to the present invention is characterized by including: an adsorption step of bringing a dolomite substance into contact with a solution containing a phosphorus compound dissolved therein; and a firing step of firing the dolomite substance that has come in contact with the solution. The adsorption step is preferably carried out under a condition having a pH value of 2 to 12 inclusive. The firing step is preferably carried out under a condition having a temperature of 300 to 1000°C. According to the present invention, it becomes possible to provide: an adsorbent which can remove a heavy meal with high efficiency even when a power of hydrogen ion concentration (pH) is high; a method for producing an adsorbent, whereby it becomes possible to produce the aforementioned adsorbent; and a treatment method, whereby it becomes possible to remove a heavy metal with high efficiency from a material of interest.
従来技術、競合技術の概要(英語) BACKGROUND ART
Is used in a factory or mine water, a large amount of heavy metal contaminants such as can be included. Such contamination in the case where the water is drained, it is necessary to sufficiently remove the contaminants.
In addition, such as well water of the contaminated soil contaminants such as heavy metal to be included, such as drinking water in the case of using as a domestic water, it is necessary to sufficiently remove the contaminants.
In the related art, the removal of the contaminants, which is used for a large amount of adsorbent (for example, see Patent Document 1). However, in an alkaline solution (for example, hydrogen ion exponent (pH) is 10 or more in the liquid) is performed in the processing by the adsorbent, heavy metals cannot be adsorbed sufficiently, due to the heavy metal adsorption or re-dissolved, it is difficult to sufficiently remove the contaminants was.
  • 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
  • NIIGATA UNIVERSITY
  • 発明者(英語)
  • KIM, Hee Joon
  • SAKAMOTO, Taiki
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 SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN 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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