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1.
公开(公告)号:US5705700A
公开(公告)日:1998-01-06
申请号:US755512
申请日:1996-11-22
IPC分类号: B01J23/889 , C07B61/00 , C07C209/72 , C07C211/35
CPC分类号: C07C209/72
摘要: To prepare a mixture of cyclohexylamine and dicyclohexylamine by catalytic hydrogenation of aniline at elevated temperature and elevated H.sub.2 pressure, the catalyst system used comprises two reduced, unsupported catalysts A and B which are prepared from pressed element (hydr)oxide powders. Catalyst A comprises one or more of Fe, Co, Ni, also Mn, Cu and one or more of Ca, Sr, Ba. Catalyst B comprises one or more of Fe, Co, Ni, also Mn, Si and Mg.
摘要翻译: 为了通过在升高的温度和升高的H 2压力下苯胺的催化氢化来制备环己胺和二环己胺的混合物,所用的催化剂体系包括由压制元素(氢氧化物)粉末制备的两种还原的未负载的催化剂A和B. 催化剂A包含Fe,Co,Ni中的一种或多种,也包括Mn,Cu和Ca,Sr,Ba中的一种或多种。 催化剂B包含Fe,Co,Ni中的一种或多种,Mn还包括Mn,Si和Mg。
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2.
公开(公告)号:US5728883A
公开(公告)日:1998-03-17
申请号:US795924
申请日:1997-02-05
IPC分类号: B01J23/889 , B01J23/85 , B01J23/88 , C07B61/00 , C07C209/60 , C07C209/72 , C07C211/35 , C07C213/02 , C07C217/52
CPC分类号: C07C209/72
摘要: In the preparation of a mixture of cyclohexylamine and dicyclohexylamine by catalytic hydrogenation of aniline at elevated temperature and elevated H.sub.2 pressure, use is made of reduced, support-free catalysts which comprise pressed element (hydr)oxide powders of Co, Mn, alkaline earth metals and element (hydr)oxide powders of elements of transition groups V and/or VI of the Periodic Table.
摘要翻译: 在通过在升高的温度和升高的H 2压力下苯胺的催化氢化制备环己胺和二环己基胺的混合物时,使用还原的无载体催化剂,其包含Co,Mn,碱土金属的压制元素(hydr)氧化物粉末 和元素(hydr)氧化物粉末的元素周期表的过渡基团V和/或VI。
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公开(公告)号:US6037504A
公开(公告)日:2000-03-14
申请号:US204903
申请日:1998-12-03
IPC分类号: B01J23/86 , B01J23/88 , B01J23/889 , C07B61/00 , C07C29/149 , C07C31/20 , C07C67/08 , C07C29/14
CPC分类号: C07C29/149 , B01J23/8892 , Y02P20/52
摘要: In a process for producing aliphatic .alpha.,.omega.-diols comprising 4 to 12 C atoms from aliphatic .alpha.,.omega.-dicarboxylic acids comprising 4 to 12 C atoms, an oligoester of average chain length n=3 to n=4.5 and with an acid number of 40 to 60 mg KOH/g reaction mixture is first formed from a diol and a dicarboxylic acid, which oligoester is thereafter catalytically hydrogenated in the liquid phase. Hydrogenation is carried out continuously at 180 to 250.degree. C. and at an H.sub.2 pressure of 100 to 400 bar, over a pelletised catalyst which is free from Zn oxide and which comprises pressed powders of Cu, Mn and Al oxides with a content of at least one oxide of metals of subgroup VI of the periodic table of the elements (Mendeleev). The amount of H.sub.2 is 20 to 100 times the amount required stoichiometrically.
摘要翻译: 在由4-12个碳原子的脂肪族α,ω-二羧酸组成的含有4-12个碳原子的脂肪族α,ω-二醇的制备方法中,平均链长n = 3〜n = 4.5,酸值为 40至60mg KOH / g反应混合物首先由二醇和二羧酸形成,然后将低聚酯在液相中催化氢化。 在180-250℃,在100-400巴的H 2压力下,在不含Zn氧化物的颗粒状催化剂上连续进行氢化,其包含Cu,Mn和Al氧化物的压制粉末,其含量为 元素周期表第VI族金属的最少一种金属(Mendeleev)。 H2的量为化学计量所需量的20-100倍。
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公开(公告)号:US6031140A
公开(公告)日:2000-02-29
申请号:US194635
申请日:1998-11-30
申请人: Gerhard Darsow , Wilfried Niemeier
发明人: Gerhard Darsow , Wilfried Niemeier
IPC分类号: B01J23/889 , C07C29/20 , C07C35/21 , C07C35/08
CPC分类号: C07C29/20 , C07C2101/14 , C07C2102/42
摘要: A continuous process for preparing isocamphyl-cyclohexanols from isocamphy-guaiacol or isocamphyl-phenol compounds by hydrogenating one of said compounds with hydrogen at elevated temperature and elevated pressure, comprising the use of support-free molded bodies which serve as catalysts and which are obtainable by reduction of molded bodies made of compressed powders of cobalt, manganese and copper (hydr)oxides and optionally of (hydr)oxides of the alkaline earth metals are used.
摘要翻译: PCT No.PCT / EP97 / 02870 Sec。 371日期:1998年11月30日 102(e)1998年11月30日日期PCT 1997年6月3日PCT公布。 公开号WO97 / 46505 PCT 日期1997年12月11日通过在升高的温度和升高的压力下用氢气氢化所述化合物之一来制备异孔衣康愈醇或异山梨醇酚化合物的邻苯二甲酰 - 环己醇的连续方法,包括使用用作催化剂的无支撑体模塑体 并且可以通过还原由钴,锰和铜(氢氧化物)氧化物和任选的碱土金属的(hydr)氧化物的压缩粉末制成的成型体而获得。
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公开(公告)号:US5304525A
公开(公告)日:1994-04-19
申请号:US50752
申请日:1993-04-21
申请人: Otto Immel , Helmut Waldmann , Rudolf Braden , Christian Frohlich , Gerhard Friedhofen , Wilfried Niemeier
发明人: Otto Immel , Helmut Waldmann , Rudolf Braden , Christian Frohlich , Gerhard Friedhofen , Wilfried Niemeier
IPC分类号: B01J23/44 , B01J23/46 , C07B61/00 , C07C209/30 , C07C209/36 , C07C211/46 , B01J21/18 , B01J23/40
CPC分类号: C07C209/36 , C07C209/30
摘要: A process for the preparation of aniline by hydrogenation of nitrobenzene in the gas phase in the presence of a catalyst containing a noble metal is described. The process can be carried out in an improved manner if the catalyst employed is palladium on graphite or petrol coke, as the support, containing 0.001-1% by weight of Pd, based on the total weight of the catalyst, it being possible for the catalyst also to contain, in addition to the Pd, 0.001-0.5% by weight of Ir and/or 0.001-0.3% by weight of Rh, all figures being based on the total weight of the catalyst.
摘要翻译: 描述了在含有贵金属的催化剂存在下,在气相中硝基苯氢化制备苯胺的方法。 如果所使用的催化剂是石墨或石油焦炭作为载体,基于催化剂的总重量,可以以改进的方式进行该方法,该催化剂含有0.001-1重量%的Pd,对于 催化剂除了Pd之外还含有0.001-0.5重量%的Ir和/或0.001-0.3重量%的Rh,所有数据都是基于催化剂的总重量。
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