METAL RECOVERY METHOD, SOIL CLEANING AGENT AND SOIL CLEANING METHOD

PROBLEM TO BE SOLVED: To provide a metal recovery method without needs for a large amount of alkali or a polymer coagulant, a soil cleaning agent and a soil cleaning method.SOLUTION: The metal recovery method includes interposing a hydrophilic polymer gel obtained by polymerizing an acrylamide monom...

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1. Verfasser:	GOTO TAKEHIKO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON DISPOSAL OF SOLID WASTE DYES FERROUS OR NON-FERROUS ALLOYS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS RECLAMATION OF CONTAMINATED SOIL RECLAMATION OF CONTAMINED SOIL SOIL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a metal recovery method without needs for a large amount of alkali or a polymer coagulant, a soil cleaning agent and a soil cleaning method.SOLUTION: The metal recovery method includes interposing a hydrophilic polymer gel obtained by polymerizing an acrylamide monomer having an alkylene chain having 2 or more carbon atoms between a terminal amino group and an acrylamide group, a methacrylamide group, an acryl group or a methacryl group, a methacrylamide monomer, an acrylate monomer or a methacrylate monomer in a liquid containing a metal and water molecule, generating hydroxide of the metal in a network space of the polymer gel and separating the polymer gel from the liquid to recover the metal.SELECTED DRAWING: None 【課題】多量のアルカリや高分子凝集剤が不要な金属回収方法、土壌浄化剤及び土壌浄化方法を提供する。【解決手段】金属回収方法は、金属及び水分子を含有する液体に、末端のアミノ基とアクリルアミド基、メタクリルアミド基、アクリル基又はメタクリル基との間に炭素数が２以上のアルキレン鎖を有するアクリルアミドモノマー、メタクリルアミドモノマー、アクリレートモノマー又はメタクリレートモノマーが重合して得られた親水性の高分子ゲルを介在させ、高分子ゲルのネットワーク空間内にて金属の水酸化物を生成させ、液体から高分子ゲルを分離して金属を回収する。【選択図】なし