PLATINUM GROUP METAL COLLOIDAL PARTICLES RECOVERY MATERIAL, FILTER COMPRISING THE RECOVERY MATERIAL, AND METHOD FOR RECOVERY OF PLATINUM GROUP METAL COLLOIDAL PARTICLES USING THE RECOVERY MATERIAL

• Main Authors: KAWACHI AKINORI, KUDO RYOKO, UCHIDA MITSUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 22.06.2017
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; SEPARATION; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide a platinum group metal colloidal particles recovery material having an excellent recovery effect of platinum group metal colloidal particles in a solution containing the platinum group metal colloidal particles.SOLUTION: There is provided a platinum group metal colloidal particles recovery material for a solution comprising the platinum group metal colloidal particles, wherein the recovery material is an activated carbon having a pore volume of the pore diameter range of 35-110Å, in the pore distribution measured from the nitrogen desorption isotherm at the temperature of 77.4K according to the BJH method, of 0.07 ml/g or more.SELECTED DRAWING: Figure 2 【課題】 白金族金属コロイド粒子を含有する溶液中の白金族金属コロイド粒子の回収効果に優れた、白金族金属コロイド粒子回収材の提供。【解決手段】 白金族金属コロイド粒子を含有する溶液の前記白金族金属コロイド粒子の回収材であって、前記回収材が、温度７７．４Ｋにおける窒素脱着等温線よりＢＪＨ法で求めた細孔分布において、細孔直径３５〜１１０Åの範囲の細孔容積が、０．０７ｍｌ／ｇ以上である活性炭である、白金族金属コロイド粒子回収材。【選択図】 図２