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< Page ,Total 6 >
以亚硝酰基硝酸钌为前驱体的氨合成催化剂及其制备方法 incoPat
专利 | 2012/2/6 | CN201210024855.9
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Abstract :

本发明提供了一种以亚硝酰基硝酸钌为前驱体的氨合成催化剂及其制备方法,该催化剂的组成为(RuL+M1+M2)/AC,RuL-M1-M2/AC,M1-(RuL+M2)/AC,M1-(RuL+M2)-M1/AC中的一种,其中AC为石墨化活性炭;M1为钡、镁、铵的硝酸盐、乙酸盐中的一种或多种混合物;M2为碱金属钠、钾、铷、铯、稀土金属硝酸盐、乙酸盐、氢氧化物中的一种或多种混合物;RuL为亚硝酰基硝酸钌络合物;钌的浸渍量为活性炭重量的2-9%,M1的浸渍量为活性炭重量的4-16%,M2的浸渍量为活性炭重量的10-20%;活性组分Ru与助剂采用等体积多次浸渍法浸渍到载体上。本发明的设备、流程简单,制备周期短,易于实现规模生产;本发明制备的催化剂与已有的氯化钌作前驱体的钌基氨合成催化剂相比,催化剂的制备效率大幅度提高,催化剂的性价比高。

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GB/T 7714 倪军 , 陈赓 , 魏可镁 et al. 以亚硝酰基硝酸钌为前驱体的氨合成催化剂及其制备方法 : CN201210024855.9[P]. | 2012/2/6 .
MLA 倪军 et al. "以亚硝酰基硝酸钌为前驱体的氨合成催化剂及其制备方法" : CN201210024855.9. | 2012/2/6 .
APA 倪军 , 陈赓 , 魏可镁 , 林建新 , 林炳裕 , 王榕 et al. 以亚硝酰基硝酸钌为前驱体的氨合成催化剂及其制备方法 : CN201210024855.9. | 2012/2/6 .
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以多羟基钌络合物为前驱体的钌系氨合成催化剂 incoPat
专利 | 2012/2/6 | CN201210024788.0
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Abstract :

本发明公开了一种以多羟基钌络合物为前驱体的钌系氨合成催化剂及其制备方法,它的组成为RuL+M1+M2/AC,M1-(RuL+M1+M2)/AC,(RuL+M1+M2)-M1/AC,(RuL+M1+M2)-M2-M1/AC中的一种;其中RuL为钌与多羟基醚、多羟基醛或多羟基酮反应生成的水溶性的钌络合物;M1为硝酸钡、乙酸钡、硝酸镁、硝酸铵、硝酸铝、硝酸锆中的一种或多种的混合物;M2是碱金属钠、钾、铷、铯、稀土金属的硝酸盐、乙酸盐或氢氧化物中的一种或多种的混合物;AC是载体,即活性炭或石墨化活性炭。该方法以石墨化活性炭为载体,经过钌酸钾制备、前驱体制备、混合溶液制备、催化剂制备、干燥等步骤制得氨合成催化剂。本发明的设备、流程简单,制备周期短,效率高,节能环保,易于实现规模化生产;制备的催化剂性价比高。

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GB/T 7714 倪军 , 陈赓 , 魏可镁 et al. 以多羟基钌络合物为前驱体的钌系氨合成催化剂 : CN201210024788.0[P]. | 2012/2/6 .
MLA 倪军 et al. "以多羟基钌络合物为前驱体的钌系氨合成催化剂" : CN201210024788.0. | 2012/2/6 .
APA 倪军 , 陈赓 , 魏可镁 , 林建新 , 林炳裕 , 王榕 et al. 以多羟基钌络合物为前驱体的钌系氨合成催化剂 : CN201210024788.0. | 2012/2/6 .
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一种氨合成催化剂及其制备方法 incoPat
专利 | 2011/9/2 | CN201110258118.0
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Abstract :

本发明公开了一种氨合成催化剂及其制备方法,它的组成为RuL+M1+M2/AC,M1-(RuL+M1+M2)/AC,(RuL+M1+M2)-M1/AC或(RuL+M1+M2)-M2-M1/AC中的一种;其中RuL为钌与多元醇、多元醛、多元酸反应生成的水溶性的钌络合物;M1为硝酸钡、乙酸钡、硝酸镁、硝酸铵中的一种或多种的组合物;M2是碱金属钠、钾、铷、铯和稀土硝酸盐、乙酸盐或氢氧化物中的一种或多种的组合物;AC是载体,即石墨化活性炭。该方法以石墨化活性炭为载体,经过钌酸钾制备、前驱体制备、混合溶液制备、催化剂制备、干燥这些步骤制得氨合成催化剂。本发明的设备、流程简单,制备周期短,效率高,节能环保,易于实现规模化生产;制备的催化剂性价比高。

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GB/T 7714 魏可镁 , 倪军 , 林建新 et al. 一种氨合成催化剂及其制备方法 : CN201110258118.0[P]. | 2011/9/2 .
MLA 魏可镁 et al. "一种氨合成催化剂及其制备方法" : CN201110258118.0. | 2011/9/2 .
APA 魏可镁 , 倪军 , 林建新 , 林炳裕 , 王榕 , 俞秀金 . 一种氨合成催化剂及其制备方法 : CN201110258118.0. | 2011/9/2 .
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一种钌基氨合成催化剂及其制备方法 incoPat
专利 | 2008/7/29 | CN200810071480.5
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Abstract :

本发明提供一种钌基氨合成催化剂及其制备方法,该催化剂以氧化镁为载体,金属钌为活性组分,以碱金属、碱土金属或稀土金属中的一种或几种为助剂;组成为Ru-M1/MgO、Ru-M2/MgO、Ru-M1-M2/MgO或Ru-(M1+M2)/MgO,制备方法:采用共沉淀-浸渍法制备钌-氢氧化镁催化剂前驱体:将硝酸镁和氯化钌溶于水;将该混合溶液加入碱性溶液中,生成的沉淀离心水洗,烘干,还原烧结或烧结后等体积浸渍助剂即制得所需催化剂。本发明的合成方法制备的催化剂性能好,而且需要的原料相对便宜,耗能少,设备、流程简单,有利于降低成本,实现规模化生产。

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GB/T 7714 魏可镁 , 倪军 , 王榕 et al. 一种钌基氨合成催化剂及其制备方法 : CN200810071480.5[P]. | 2008/7/29 .
MLA 魏可镁 et al. "一种钌基氨合成催化剂及其制备方法" : CN200810071480.5. | 2008/7/29 .
APA 魏可镁 , 倪军 , 王榕 , 林建新 , 俞秀金 , 林炳裕 . 一种钌基氨合成催化剂及其制备方法 : CN200810071480.5. | 2008/7/29 .
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一种活性炭负载的钌基氨合成催化剂及其制备方法 incoPat
专利 | 2008/8/7 | CN200810071543.7
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Abstract :

本发明是提供一种活性炭负载的钌基氨合成催化剂及其制备方法,催化剂以活性炭为载体,金属钌为活性组分,所述催化剂的组成为(CA+Ru)-Ba-K/AC、CA-Ru-Ba-K/AC;其中CA代表柠檬酸,AC代表活性炭;所述催化剂在制备中选用柠檬酸预处理活性炭和氯化钌,选用硝酸钡、氢氧化钾或硝酸钾中的一种或多种为助剂;制备方法采用等体积浸渍法制备催化剂。本发明采用柠檬酸法,与现有技术溶胶-凝胶法或氧化法相比,工艺简单,制备效率高,能耗少,原料价格低廉,使用量很少,有利于大幅度降低生产成本。本发明所需的设备简单,操作易行,不需要改造原有设备,容易实现规模生产。本发明制备的催化剂的性能好,催化活性强。

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GB/T 7714 魏可镁 , 倪军 , 王榕 et al. 一种活性炭负载的钌基氨合成催化剂及其制备方法 : CN200810071543.7[P]. | 2008/8/7 .
MLA 魏可镁 et al. "一种活性炭负载的钌基氨合成催化剂及其制备方法" : CN200810071543.7. | 2008/8/7 .
APA 魏可镁 , 倪军 , 王榕 , 林建新 , 俞秀金 , 林炳裕 . 一种活性炭负载的钌基氨合成催化剂及其制备方法 : CN200810071543.7. | 2008/8/7 .
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一种活性炭负载钌催化剂中钌的回收方法 incoPat
专利 | 2008/7/31 | CN200810117483.8
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Abstract :

本发明涉及一种活性炭负载的钌催化剂的回收方法,包括以下步骤:将不含或被除去碱金属或碱土金属化合物助剂的活性炭负载的钌催化剂通过高温焙烧,焙烧物高温碱熔,碱熔物在60℃~95℃的热水中溶解得到K2RuO4或Na2RuO4溶液,加入乙醇或碱性溶液得到Ru(OH)4沉淀,烘干此沉淀,或用强酸溶解此沉淀,或用H2还原此沉淀可以得到不同的钌产品,本发明的优点是贵金属钌能被高效回收,回收操作过程安全,碱金属和碱土金属助剂能同时得到回收,且回收的产品形式可以选择。该方法技术可靠,操作简单,成本低,无污染。

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GB/T 7714 王榕 , 谢峰 , 孔繁华 et al. 一种活性炭负载钌催化剂中钌的回收方法 : CN200810117483.8[P]. | 2008/7/31 .
MLA 王榕 et al. "一种活性炭负载钌催化剂中钌的回收方法" : CN200810117483.8. | 2008/7/31 .
APA 王榕 , 谢峰 , 孔繁华 , 张天釜 , 张春光 , 魏可镁 et al. 一种活性炭负载钌催化剂中钌的回收方法 : CN200810117483.8. | 2008/7/31 .
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一种活性炭负载钌基氨合成催化剂及其制备方法 incoPat
专利 | 2008/10/6 | CN200810071876.X
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Abstract :

本发明公开了一种活性炭负载钌基氨合成催化剂及其制备方法,属化肥催化剂。催化剂的活性炭负载钌基氨合成催化剂是以活性炭为载体、金属钌为活性组分、碱金属和碱土金属为助剂,活性组分钌以Ru(OH)4或RuO2.2H2O形式负载于活性炭载体上,负载量以Ru计重量为活性炭重量的2%~9%;碱土金属以硝酸盐或草酸盐的形式负载于活性炭载体上,负载量以碱土金属计,其与钌的物质量之比值为0.3~5 : 1;碱金属与Ru的物质量之比值为2~10。本发明操作快速、简单,所制备的催化剂性能稳定、活性高,适合工业化生产。

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GB/T 7714 王榕 , 魏可镁 , 林建新 et al. 一种活性炭负载钌基氨合成催化剂及其制备方法 : CN200810071876.X[P]. | 2008/10/6 .
MLA 王榕 et al. "一种活性炭负载钌基氨合成催化剂及其制备方法" : CN200810071876.X. | 2008/10/6 .
APA 王榕 , 魏可镁 , 林建新 , 俞秀金 , 倪军 , 林炳裕 et al. 一种活性炭负载钌基氨合成催化剂及其制备方法 : CN200810071876.X. | 2008/10/6 .
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一种铁系氨合成催化剂及制备方法 incoPat
专利 | 2008/9/18 | CN200810222393.5
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本发明涉及一种铁系氨合成催化剂及制备方法,其组成按重量%计:铁氧化物89~96;氧化铝1.5~3.0;氧化钾0.3~1.0;氧化钙1.0~2.0;氧化镁0.1~1.0;氧化钼0.1~2.0;氧化钨0.1~0.5;混合稀土金属氧化物0.2~1.0,总量为100%;氧化钼与氧化钨的比例为1 : 1~4 : 1;二价铁与三价铁的比为0.4~0.6;用熔融法制备,该催化剂低温低压活性高,出口氨体积百分数为20.2%,耐热抗毒性能好。

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GB/T 7714 徐显明 , 林建新 , 魏可镁 et al. 一种铁系氨合成催化剂及制备方法 : CN200810222393.5[P]. | 2008/9/18 .
MLA 徐显明 et al. "一种铁系氨合成催化剂及制备方法" : CN200810222393.5. | 2008/9/18 .
APA 徐显明 , 林建新 , 魏可镁 , 王榕 , 张忠涛 , 俞秀金 et al. 一种铁系氨合成催化剂及制备方法 : CN200810222393.5. | 2008/9/18 .
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Physicochemical characterization and H(2)-TPD study of alumina supported ruthenium catalysts SCIE
期刊论文 | 2008 , 124 (3-4) , 178-184 | CATALYSIS LETTERS
WoS CC Cited Count: 50
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Abstract :

A series of alumina supported ruthenium catalysts, which prepared by hydrogen treatment or hydrazine reduction, were characterized by N(2) adsorption, X-ray diffraction (XRD), X-ray fluorescence (XRF), CO chemisorption, and Temperature-programmed desorption of hydrogen (H(2)-TPD). In contrast to the samples with conventional hydrogen reduction, there was almost no residual chlorine in the samples using RuCl(3) as precursor with hydrazine treatment. Furthermore, the dissolved aluminum could be removed much more easily in basic solution, which led to the higher BET surface and pore volume of hydrazine-reduction catalysts. Therefore, the active phase (Ru metal) would not be contaminated. Three main peaks, which occurred at about 150, 375, and 650 degrees C, respectively, were observed in the H(2)-TPD profiles of Ru/Al(2)O(3) catalysts with a high amount of residual chlorine. A new peak of desorption hydrogen centering at 240 degrees C, which was completely suppressed by the high amount of residual chlorine, might appear in the profiles of the samples with the washing procedure following hydrogen reduction or hydrazine treatment. The peaks with the desorption temperature lower than 500 degrees C were relative with dissociatively adsorbed hydrogen and spillover hydrogen simultaneity, and the peak at above 500 degrees C was caused by spillover hydrogen and would be stabilized by hydroxyl groups on alumina surface.

Keyword :

chlorine chlorine H(2)-TPD H(2)-TPD hydrazine reduction hydrazine reduction Ru/Al(2)O(3) Ru/Al(2)O(3)

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GB/T 7714 Lin, Bingyu , Wang, Rong , Yu, Xiujin et al. Physicochemical characterization and H(2)-TPD study of alumina supported ruthenium catalysts [J]. | CATALYSIS LETTERS , 2008 , 124 (3-4) : 178-184 .
MLA Lin, Bingyu et al. "Physicochemical characterization and H(2)-TPD study of alumina supported ruthenium catalysts" . | CATALYSIS LETTERS 124 . 3-4 (2008) : 178-184 .
APA Lin, Bingyu , Wang, Rong , Yu, Xiujin , Lin, Jianxin , Xie, Feng , Wei, Kemei . Physicochemical characterization and H(2)-TPD study of alumina supported ruthenium catalysts . | CATALYSIS LETTERS , 2008 , 124 (3-4) , 178-184 .
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Physicochemical characterization and H2-TPD study of alumina supported ruthenium catalysts EI
期刊论文 | 2008 , 124 (3-4) , 178-184 | Catalysis Letters
Physicochemical characterization and H2-TPD study of alumina supported ruthenium catalysts Scopus
期刊论文 | 2008 , 124 (3-4) , 178-184 | Catalysis Letters
Preparation of carbon nanotubes (CNTs)-cordierite monoliths by catalytic chemical vapor deposition as catalyst supports for ammonia synthesis SCIE
期刊论文 | 2008 , 122 (3-4) , 287-294 | CATALYSIS LETTERS
WoS CC Cited Count: 25
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Abstract :

Tunable carbon nanotubles (CNTs)-coated monoliths as catalyst supports were prepared by catalytic chemical vapor deposition (CCVD) over deposited cobalt on cordierite. The influence of the preparation conditions such as the cobalt nitrate loading on the cordierite monoliths, the flow rate of reaction gases, reaction time and temperature on CNTs yield, thermal properties and structural features of the resulting materials were studied. The CNTs-cordierite was characterized by TEM/HREM, SEM, N-2 physisorption and TGA. The SEM showed that a relatively homogeneous mesoporous layer of CNTs covered on the surface of the cordierite monoliths. Comparing with the bare cordierite, the BET surface area and pore volume of CNTs-cordierite increased significantly. CNTs have penetrated into the cordierite substrate and led to a remarkable mechanical stability of the CNTs-cordierite monoliths against ultrasound maltreatment. The CNTs content, BET surface area, pore volume and thermal properties of CNT-scordierite monoliths all could be changed by the variation of the synthesis conditions. Barium promoted ruthenium catalysts supported on the as-synthesized materials showed much higher activity for ammonia synthesis than their counterparts deposited on bare cordierite monoliths. Furthermore, the catalytic activity linearly increased with the BET surface area of CNTs-cordierite monoliths. The CNT-scordierite monoliths were proved to be promising candidates as catalyst supports and the performance of catalysts supported on as-prepared materials would be easily modified by changing the growth conditions of CNTs.

Keyword :

ammonia synthesis ammonia synthesis CCVD CCVD CNTs-cordierite monolith CNTs-cordierite monolith support support

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GB/T 7714 Gong, Binbin , Wang, Rong , Lin, Bingyu et al. Preparation of carbon nanotubes (CNTs)-cordierite monoliths by catalytic chemical vapor deposition as catalyst supports for ammonia synthesis [J]. | CATALYSIS LETTERS , 2008 , 122 (3-4) : 287-294 .
MLA Gong, Binbin et al. "Preparation of carbon nanotubes (CNTs)-cordierite monoliths by catalytic chemical vapor deposition as catalyst supports for ammonia synthesis" . | CATALYSIS LETTERS 122 . 3-4 (2008) : 287-294 .
APA Gong, Binbin , Wang, Rong , Lin, Bingyu , Me, Feng , Yu, Xiujin , Wei, Kemei . Preparation of carbon nanotubes (CNTs)-cordierite monoliths by catalytic chemical vapor deposition as catalyst supports for ammonia synthesis . | CATALYSIS LETTERS , 2008 , 122 (3-4) , 287-294 .
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Preparation of carbon nanotubes (CNTs)-cordierite monoliths by catalytic chemical vapor deposition as catalyst supports for ammonia synthesis EI
期刊论文 | 2008 , 122 (3-4) , 287-294 | Catalysis Letters
Preparation of carbon nanotubes (CNTs)-cordierite monoliths by catalytic chemical vapor deposition as catalyst supports for ammonia synthesis Scopus
期刊论文 | 2008 , 122 (3-4) , 287-294 | Catalysis Letters
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