公开(公告)号：KR1020030074985A

公开(公告)日：2003-09-22

申请号：KR1020020014034

申请日：2002-03-15

Applicant: 한국원자력연구원

Inventor： 정진호 ,  정호승 ,  정흥호 ,  이면주 ,  진준하 ,  박경배

IPC: C02F1/72

Abstract: PURPOSE: A hydrogen producing method is provided which not only solves problems such as economic feasibility in conventional hydrogen manufacturing method using gamma rays, but also treats rinsing wastewater containing metal EDTA complex, and a method for manufacturing more economical catalyst used in the method is provided. CONSTITUTION: The method for producing hydrogen and treating rinsing wastewater comprises a step of preparing aqueous dispersion material by dispersing titanium dioxide powder catalyst having nanometer sized diameter into rinsing wastewater containing metal-EDTA (ethylene diamine tetra acetic acid) complex; and simultaneously producing hydrogen and oxidation treating the rinsing wastewater by irradiating onto the aqueous dispersion material, wherein particle size of the titanium dioxide powder catalyst has diameter of 20 nm or less and specific surface area of 100 m¬2/g or more, wherein the metal-EDTA (ethylene diamine tetra acetic acid) complex is selected from the group consisting of Cu-EDTA, Fe-EDTA and a mixture thereof, and wherein the gamma rays are selected from the group consisting of Co-60 radioactive ray source, nuclear fuel after use and high-level radioactive waste. The manufacturing method of titanium dioxide powder particles having nanometer sized diameter comprises the steps of injecting titanium isopropoxide into an acidic aqueous solution being stirred to rotation speed of 1000 to 1500 rpm for 30 minutes to 2 hours; increasing viscosity of the solution by furthermore stirring a reaction solution obtained in the above step at rotation speed of 500 to 1000 rpm for 12 to 36 hours; heating the reaction solution obtained in the above step at a temperature of 60 to 90 deg.C for 3 to 6 hours; and evaporating the heated reaction solution.

Abstract translation: 目的：提供一种氢生产方法，其不仅解决了使用γ射线的常规氢制造方法中的经济可行性等问题，而且还处理含有金属EDTA络合物的漂洗废水，并提供了该方法中使用的更经济的催化剂的制造方法 。 构成：生产氢气和处理漂洗废水的方法包括通过将具有纳米尺寸直径的二氧化钛粉末催化剂分散到含有金属-EDTA（乙二胺四乙酸）络合物的漂洗废水中来制备水分散体材料的步骤; 同时产生氢气并通过照射到水分散体材料上氧化处理漂洗废水，其中二氧化钛粉末催化剂的粒径为20nm以下，比表面积为100m2 / g以上，其中， 金属-EDTA（乙二胺四乙酸）络合物选自Cu-EDTA，Fe-EDTA及其混合物，其中γ射线选自Co-60放射线源，核 使用后的燃料和高放射性废物。 具有纳米尺寸直径的二氧化钛粉末颗粒的制造方法包括以下步骤：将异丙醇钛注入酸性水溶液中，搅拌至1000至1500rpm的转速30分钟至2小时; 通过在500至1000rpm的转速下进一步搅拌上述步骤获得的反应溶液12至36小时，增加溶液的粘度; 将上述步骤中得到的反应溶液在60〜90℃的温度下加热3〜6小时; 并蒸发加热的反应溶液。

公开(公告)号：KR100465288B1

公开(公告)日：2005-01-13

申请号：KR1020020014034

申请日：2002-03-15

Applicant: 한국원자력연구원

Inventor： 정진호 ,  정호승 ,  정흥호 ,  이면주 ,  진준하 ,  박경배

IPC: C02F1/72

Abstract: PURPOSE: A hydrogen producing method is provided which not only solves problems such as economic feasibility in conventional hydrogen manufacturing method using gamma rays, but also treats rinsing wastewater containing metal EDTA complex, and a method for manufacturing more economical catalyst used in the method is provided. CONSTITUTION: The method for producing hydrogen and treating rinsing wastewater comprises a step of preparing aqueous dispersion material by dispersing titanium dioxide powder catalyst having nanometer sized diameter into rinsing wastewater containing metal-EDTA (ethylene diamine tetra acetic acid) complex; and simultaneously producing hydrogen and oxidation treating the rinsing wastewater by irradiating onto the aqueous dispersion material, wherein particle size of the titanium dioxide powder catalyst has diameter of 20 nm or less and specific surface area of 100 m¬2/g or more, wherein the metal-EDTA (ethylene diamine tetra acetic acid) complex is selected from the group consisting of Cu-EDTA, Fe-EDTA and a mixture thereof, and wherein the gamma rays are selected from the group consisting of Co-60 radioactive ray source, nuclear fuel after use and high-level radioactive waste. The manufacturing method of titanium dioxide powder particles having nanometer sized diameter comprises the steps of injecting titanium isopropoxide into an acidic aqueous solution being stirred to rotation speed of 1000 to 1500 rpm for 30 minutes to 2 hours; increasing viscosity of the solution by furthermore stirring a reaction solution obtained in the above step at rotation speed of 500 to 1000 rpm for 12 to 36 hours; heating the reaction solution obtained in the above step at a temperature of 60 to 90 deg.C for 3 to 6 hours; and evaporating the heated reaction solution.

Abstract translation: 目的：提供一种制氢方法，该方法不仅解决了使用γ射线的常规制氢方法的经济可行性等问题，而且还处理了含金属EDTA络合物的冲洗废水，并提供了一种制造该方法中使用的更经济的催化剂的方法 。 一种制备氢气和处理漂洗废水的方法，包括以下步骤：通过将具有纳米尺寸直径的二氧化钛粉末催化剂分散到含有金属-EDTA（乙二胺四乙酸）配合物的漂洗废水中来制备水分散体材料; 同时通过照射所述水性分散体材料来产生氢气并氧化处理所述漂洗废水，其中所述二氧化钛粉末催化剂的粒径为20nm或更小，并且比表面积为100m 2 / g或更大，其中所述 金属-EDTA（乙二胺四乙酸）络合物选自Cu-EDTA，Fe-EDTA及其混合物，并且其中γ射线选自Co-60放射性射线源，核 使用后的燃料和高放射性废物。 具有纳米尺寸直径的二氧化钛粉末颗粒的制造方法包括以下步骤：将异丙醇钛注入到搅拌至1000至1500rpm的转速的酸性水溶液中30分钟至2小时; 通过在500至1000rpm的转速下进一步搅拌上述步骤中获得的反应溶液12至36小时来增加溶液的粘度; 将上述步骤得到的反应溶液在60〜90℃加热3〜6小时; 并蒸发加热的反应溶液。