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    • 2. 发明授权
    • Method for manufacturing iron catalyst
    • 铁催化剂的制造方法
    • US08642500B2
    • 2014-02-04
    • US13318198
    • 2010-11-19
    • Dong Hyun ChunHak Joo KimHo Tae LeeJung Il YangJung Hoon YangHeon Jung
    • Dong Hyun ChunHak Joo KimHo Tae LeeJung Il YangJung Hoon YangHeon Jung
    • B01J21/00
    • B01J23/78B01J23/745B01J23/75B01J35/0013B01J35/023B01J37/0045B01J37/0201B01J37/038B01J37/06C10G2/332
    • Disclosed is a method for manufacturing an iron catalyst, the method including: a mixing stage where a mixture solution is manufactured by mixing iron nitrate (Fe(NO3)3) solution and copper nitrate (Cu(NO3)2) solution; a precipitation slurry-forming stage where a precipitation slurry is formed by adding at least one of sodium carbonate (Na2CO3) or sodium hydroxide (Na2CO3) solutions to the mixture solution; a washing stage where the precipitation slurry is filtered and washed with distilled water; a silica adding stage where fumed silica powder and potassium carbonate (K2CO3) solution are added to the precipitation slurry and then agitated; a drying stage where the precipitation slurry is passed through a sieve having a size of 30 μm to 100 μm and dried by a spry drying method to manufacture a powdered iron catalyst; and a heat treatment stage where the iron catalyst is dried at a temperature of 50° to 150° C., and then heat-treated at a temperature of 300° C. to 500° C.
    • 本发明公开了一种铁催化剂的制造方法,其特征在于,包括:将硝酸铁(Fe(NO 3)3)溶液与硝酸铜(Cu(NO 3)2)溶液混合,制成混合溶液的混合阶段; 沉淀浆液形成阶段,其中通过向混合物溶液中加入至少一种碳酸钠(Na 2 CO 3)或氢氧化钠(Na 2 CO 3)溶液形成沉淀浆料; 洗涤阶段,其中沉淀浆液被过滤并用蒸馏水洗涤; 二氧化硅添加阶段,将沉淀二氧化硅粉末和碳酸钾(K 2 CO 3)溶液加入沉淀浆料中,然后搅拌; 将沉淀浆料通过尺寸为30μm至100μm的筛子的干燥阶段,并通过干燥法干燥以制造粉末状铁催化剂; 以及铁催化剂在50℃〜150℃的温度下干燥,然后在300℃〜500℃的温度下进行热处理的热处理阶段。
    • 4. 发明申请
    • Method for Manufacturing Iron Catalyst
    • 制造铁催化剂的方法
    • US20130237410A1
    • 2013-09-12
    • US13318198
    • 2010-11-19
    • Dong Hyun ChunHak Joo KimHo Tae LeeJung Il YangJung Hoon YangHeon Jung
    • Dong Hyun ChunHak Joo KimHo Tae LeeJung Il YangJung Hoon YangHeon Jung
    • B01J23/78
    • B01J23/78B01J23/745B01J23/75B01J35/0013B01J35/023B01J37/0045B01J37/0201B01J37/038B01J37/06C10G2/332
    • Disclosed is a method for manufacturing an iron catalyst, the method including: a mixing stage where a mixture solution is manufactured by mixing iron nitrate (Fe(NO3)3) solution and copper nitrate (Cu(NO3)2) solution; a precipitation slurry-forming stage where a precipitation slurry is formed by adding at least one of sodium carbonate (Na2CO3) or sodium hydroxide (Na2CO3) solutions to the mixture solution; a washing stage where the precipitation slurry is filtered and washed with distilled water; a silica adding stage where fumed silica powder and potassium carbonate (K2CO3) solution are added to the precipitation slurry and then agitated; a drying stage where the precipitation slurry is passed through a sieve having a size of 30 μm to 100 μm and dried by a spry drying method to manufacture a powdered iron catalyst; and a heat treatment stage where the iron catalyst is dried at a temperature of 50° to 150° C., and then heat-treated at a temperature of 300° C. to 500° C.
    • 本发明公开了一种铁催化剂的制造方法,其特征在于,包括:将硝酸铁(Fe(NO 3)3)溶液与硝酸铜(Cu(NO 3)2)溶液混合而成的混合溶液的混合阶段, 沉淀浆液形成阶段,其中通过向混合物溶液中加入至少一种碳酸钠(Na 2 CO 3)或氢氧化钠(Na 2 CO 3)溶液形成沉淀浆料; 洗涤阶段,其中沉淀浆液被过滤并用蒸馏水洗涤; 二氧化硅添加阶段,将沉淀二氧化硅粉末和碳酸钾(K 2 CO 3)溶液加入沉淀浆料中,然后搅拌; 将沉淀浆料通过尺寸为30μm至100μm的筛子的干燥阶段,并通过干燥法干燥以制造粉末状铁催化剂; 以及铁催化剂在50℃〜150℃的温度下干燥,然后在300℃〜500℃的温度下进行热处理的热处理阶段。
    • 7. 发明授权
    • Delay locked loop for use in synchronous dynamic random access memory
    • 延迟锁定环用于同步动态随机存取存储器
    • US06476652B1
    • 2002-11-05
    • US09703406
    • 2000-10-31
    • Seong-Hoon LeeJung-Il Yang
    • Seong-Hoon LeeJung-Il Yang
    • H03L700
    • G11C7/222G11C7/22
    • A delay locked loop (DLL) is used to compensate for a skew in a synchronous dynamic random access memory. The delay locked loop includes: a delay model for delaying an external clock signal by the skew to generate a delayed clock signal; a signal generation unit, in response to the external clock signal and the delayed clock signal, for generating control signals; a first delay unit, in response to the control signals, for delaying the delayed control signal to generate a first DLL clock signal, wherein the first delay unit has a large unit delay; and a second delay unit, in response to the control signals, for delaying the first DLL clock signal to generate a second DLL clock signal, wherein the second delay means in a small unit delay.
    • 延迟锁定环(DLL)用于补偿同步动态随机存取存储器中的偏斜。 延迟锁定环包括:用于通过偏斜延迟外部时钟信号以产生延迟的时钟信号的延迟模型; 信号生成单元,响应于所述外部时钟信号和所述延迟的时钟信号,用于产生控制信号; 第一延迟单元,响应于所述控制信号,用于延迟所述延迟的控制信号以产生第一DLL时钟信号,其中所述第一延迟单元具有大的单位延迟; 以及响应于所述控制信号的第二延迟单元,用于延迟所述第一DLL时钟信号以产生第二DLL时钟信号,其中所述第二延迟装置以小的单位延迟。