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- The experimental study on the preparation of p hydroxybenzaldehyde by p cresol oxidation has been carried out in this work. 研究了对甲酚经空气氧化合成对羟基苯甲醛反应过程。
- In this paper,the research progress on preparation and separation of p hydrobenzaldehyde by p cresol is discussed in details. 阐述了对甲酚催化氧化法合成对羟基苯甲醛的制备及分离工艺研究进展和发展趋势。
- A process for recovering acetic acid,o phthalic acid,p phthalic acid (PTA),cobalt acetate and manganese acetate from PTA waste liquor is introduced. 介绍了从精对苯二甲酸(PTA)废液中回收醋酸,邻、对苯二甲酸,醋酸钴锰盐的回收工艺。
- P tolyl phenyl acetate is synthesized with Benzeneacetic acid and p cresol under presence of 4 dimethylaminopyridine(DMAP) and dicyclohexylcarbodiimide(DCC) at room temperature. 苯乙酸和对甲酚在二环己基碳二酰亚胺(DCC)存在下,用4-二甲氨基吡啶(DMAP)作催化剂合成苯乙酸对甲苯酯,反应时间短,反应条件温和,后处理容易,产率
- P tolyl phenyl acetate is synthesized with Benzeneacetic acid and p cresol under presence of 4 dimethylaminopyridine(DMAP) and dicyclohexylcarbodiimide(DCC) at room temperature.The yield is 91 6%? 苯乙酸和对甲酚在二环己基碳二酰亚胺(DCC)存在下,用4-二甲氨基吡啶(DMAP)作催化剂合成苯乙酸对甲苯酯,反应时间短,反应条件温和,后处理容易,产率高
- P tertiarg butyl phenol and P cresol phenol appeaced to be good enhancers, which can increase the emission intensity obviously at least 20 times, and effectively prolong the luminescence tim... 实验证明,对位酚类衍生物,如:对叔丁基苯酚,对甲苯酚的发光增强作用明显,其发光效率可上升几十倍,发光时间也获得有效延长。
- Propionic acid was prepared with propionaldehyde as material, cobalt acetate as catalyst, calgon as cocataly, by propionaldehyde oxidation. 以丙醛为原料,乙酸钴为催化剂,六偏磷酸钠为助催化剂,将丙醛氧化可制备丙酸。
- Its products, such as copper acetate, acetic acid nickel, cobalt acetate, nickel fluoride, nickel sulphate and other products marketing at home and abroad. 其产品如醋酸铜、醋酸镍、醋酸钴、氟化镍、硫酸镍等产品行销国内外。
- The preparation process of trimesic from mesitylene by air in a liquid phase oxidation under normal pressure with the catalysis of cobalt acetate and sodium bromide was studied. 研究了在常压下,以醋酸钴和溴化钠为催化体系,均三甲苯液相空气氧化制备均苯三甲酸的反应工艺。
- Keywords p-hydroxybenzaldehyde;cobalt acete p-cresol;liquid;oxidation; 对羟基苯甲醛;醋酸钴;对甲酚;氧化;
- cobalt acete p-cresol 醋酸钴
- Keywords Encapsulated metal porphyrin;Molecular sieve;Phenylethylene;p Cresol;Oxidation; 诱捕的金属卟啉;分子筛;苯乙烯;对甲酚;氧化;
- I mind my p's and q's whenever I see him. 每当我见到他我都谨慎行事。
- In English, b, p, m and w are bilabials. 英语中的b、p、m、w为双唇音。
- Keywords P tertiary butyl phenol;P cresol horseradish peroxidase;Luminol;Hydrogen peroxide; 对叔丁基苯酚;对甲苯酚;鲁米诺;过氧化氢;辣根过氧化物酶;
- Keywords benzeneacetic acid;p cresol;dicyclohexylcarbodiimide;4 dimethyl aminopyridine;p tolyophenyl acetate; 苯乙酸;对甲酚;二环已基碳二酰亚胺;4-二甲氨基吡啶;苯乙酸对甲苯酯;
- AB and CD intersect at (the point) P. AB线和CD线在P点相交。
- The time now is 10:00 p, m, sharp. 现在的时间是晚上10点整。
- Keywords p phenylenedimethylenethio diacetic acid;cobalt acetate tetrahydrate;solid state reaction;kinetics; 对苯二甲硫基二乙酸;醋酸钴;固-固相反应;动力学;
- Stellite 6 or cobalt free seats and discs. 钨铬钴合金6或无钴阀座和阀瓣。