Raney相关论文
A novel method for the one pot synthesis of N-alkyl arylamines from nitro aromatic compounds and alcohols is proposed th......
[目的]N-(2-甲基)苯基羟胺是一种重要农药中间体,用选择性还原方法进行合成。[方法]以邻硝基甲苯为主要原料,经Raney Ni-水合肼还......
制备了Fe或/和Mo改性的Raney-Ni催化剂,应用于葡萄糖加氢反应,改性后催化剂的活性和稳定性都得到提高,其中Mo改性与Fe、Mo联合改性......
以介孔氧化硅(SBA-15)为载体,采用超声辅助(NH4)2RuCl6浸渍和BH4还原法制备了负载型Ru-B催化剂,并通过X射线衍射、X光电子能谱、差......
Till November 3, 2012 the first in China 100-t/a unit for manufacture of homogeneous catalyst for benzene hydro-genation......
Ruthenium Nanoparticles Loaded on Carbon as Effective Catalyst for Highly Selective Hydrogenation of
Supported Ru-based catalysts, prepared by a surfactant-stabilized colloidal method, exhibited a good selectivity to bis(......
Highly selective hydrogenation of halonitroaromatics to aromatic haloamines by ligand modified Ni-ba
Ligand modification of Ni-based catalysts by coordination of dicyandiamide to Ni metal leads to enhanced selectivity for......
A new synthetic method for phosphatidylethanolamine head group was developed via ring-opening of cyclic dioxaphospholane......
Identification of the starting reaction position in the hydrogenation of (N-ethyl)carbazole over Ran
Hydrogenation of carbazole and N-ethylcarbazole over Raney-Ni catalyst were realized in the temperature range of 393-503......
A newly-developed polyamide supported Raney Ni catalyst, which is suitable for use in fix-bed reactions with high select......
Raney Ni催化剂是石油化学工业用量最大的催化剂之一,通过急冷技术将其晶态结构转变为非晶态结构,能够提高加氢活性.但非晶态合金......
以合金粉为原料,采用碱处理法,制备了Ni48.5Al48.5Mo3、Ni50Al50骤冷合金催化剂(RQ Ni-Mo、RQ Ni)和普通合金催化剂(Raney Ni-Mo、......
化学法生产六元醇的关键技术在于加氢工艺,而加氢催化剂的选择是加氢工艺的核心,甚至可以说,化学法生产糖醇物质的发展历史就是一......
Leonurine(1),an important ingredient in leonurus sibiricus L,can be used for some gynecological disease.We have develope......
Effect of Preparation Process on Compressive Strength and Hydrogenation Performance of Raney-Ni/Al_2
In this study, Raney-Ni/Al_2O_3 catalysts were prepared from precursors which were calcined in different atmosphere(argo......
以甲醇为溶剂 ,在 70℃ ,3 .0MPa苯丙酮酸经Raney Ni催化氢化反应 1h得到了β 苯基乳酸的白色针状结晶 ,收率 91 % ,转化率 91 %。......
Au/FeO_x-TiO_2 as an efficient catalyst for the selective hydrogenation of phthalic anhydride to pht
Au/FeO_x-TiO_2,prepared by deposition-precipitation method,is an efficient and stable catalyst for the liquid phase sele......
2克Ni-Al合金(Al60%,Ni40%)与水6毫升,同置于容积为25毫升的三角烧瓶中,水浴加温到50℃,急剧搅拌,加入0.1毫升40%的NaOH水溶液,在......
随着我国石油化学工业的发展,作为石油化学加工的主要原料之一的轻质油品产量将日益增长。在石油化学加工中,通常对原料含硫量有......
由呋喃制造四氢呋喃从热力学上来看是毫无疑问的,ΔH_(300°K)=-36.6千卡,ΔF_(300°K)=-18.8千卡;但是为了克服动力学上的障碍,......
有机硫化物的还原脱硫反应是由 Bougault,Cat-teein 和 Chabrier 等人所发现的,到现在将近二十年了;他们曾用 Raney 镍还原了一系......
前言蒎烷是松节油的主要成份蒎烯经加氢而得,目前生产上多以Raney镍为催化剂,用高压釜进行液相加氢来生产蒎烷。为了实现加氢过程......
Bradly 和 Smith 曾先后初步研究过在有溶剂存在下,呋喃在氧化铂催化剂上加氢反应的动力学,但是他们的工作都是在较低的压力范围......
以Raney法研制了Cu-Zn-Al合金催化剂,并将其用于CO+H_2合成甲醇反应。考察了合金在固定床中的组成及浸析条件对催化剂组成的影响。......
一前言银是硷性燃料电池和空气电池中最常用的氧电极催化剂之一。为了制备高活性银催化剂,曾经采用在瑞尼(Raney)银合金中溶出铝......
本文报告关于应用在第Ⅰ报中的合成途径,合成几种2-取代-5,6(4)-二羟基嘧啶的结果。1.合成所必要的α-苯甲氧基甲酰乙酸乙酯(Ⅳ),......
根据氧化亚氮在表面零价铜上分解放出氮的特征反应,建立了脉冲氧化亚氮-色谱法测定各种含铜催化剂活性表面积的方法。对商品氧化铜......
Study on asymmetric syntheses of steroids ⅩⅢ. Synthesis of two new (±)-3-oxa-A-nor steroids 1a and 1
This paper deals with the synthesis of two new (±)-3-oxa-A-nor steroids 1a and 1 b.The conjugated addition of 5’-meth......
已知钌金属表面容易离解一氧化碳键,由此而使载钌催化剂成为甲烷化或费托合成的有效催化剂。虽然有几种钌系催化剂能够得到含氧化......
亚砜是有机合成的重要中间体,但反应完成后,往往需要除去亚砜基团,通常的方法是将亚砜脱氧为硫醚,再用Raney镍等除去硫醚基团:
S......
α-异丙基-4-羟基苯乙酸是合成新杀虫剂氟氰菊酯(Flucythrinate)的关键中间体。其合成方法已有报道,但不够理想。本文报道一种合......
本文研究了高分子-过渡金属(钯、铂和镍)络合物在2-氯-4-硝基甲苯的硝基还原反应中的催化活性及选择性.实验结果表明:高分子-金属......
苯并-15-冠-5与四种脂肪族二元酸在多聚磷酸中反应,制备了酮型的二酰双(4＇-苯并-15-冠-5)(1a-d)。后者与Raney镍反应(或用Pd(OH)_2/......
本文报道两个新的(±)-3-氧杂-A-失碳甾体1a和1b的合成.5’-甲基呋喃二噻烷阴离子5b与消旋甾体CD环合成原6在THF-HMPA中进行共轭加......
以Raney镍为催化剂,在淤浆鼓泡床中进行丁炔二醇加氢合成丁二醇这一两步串联加氢反应。探讨了在实验条件下气液传质、液-固传质和......
3—乙酰氧—孕甾烯—[5]—酮—[20](1)是以国內资源丰富的薯蓣皂甙元为原料制备黄体酮的重要中间体。一般都采用3—乙酰氧—孕甾......
Construction of the Core of Pseudolaric Acid A and Mechanistic Studies on Intramolecular [4+3] Cyclo
This paper describes the construction of hemiacetal 2, the core of pseudolaric acid A via oxidative cleavage of acetonid......
February 1992 Volume 1 Number 1Characteristic studies of MoS2./K+-SiO2 catalysts for synthesis of mixed alcohols from sy......
采用TEM和HREM方法观察到由激冷合金制备的Raney-Ni催化剂中两种尺寸的孔结构,初始Ni_2Al_3晶界处形成的尺寸为2～5 nm的间隙孔和Ni_......
An ultrafine Ru-B amorphous alloy catalyst was prepared by chemical reduction with KBH4 in aqueous solution, which exhib......
A novel Co-B amorphous alloy catalyst in the form of ultrafine particles was prepared by chemical reduction of CoCl2 wit......
考察了可用于3-羟基丙醛加氢的固定床催化剂,对加氢反应的压力、温度、反应体系中各组分的变化和催化剂活性稳定性等进行了研究。......
WT5”BZ]Ambiguity problem is inherent in synthetic aperture radar (SAR) images of ocean waves. A new method is developed......
