منابع مشابه
Zeolite catalyzed alkylation of toluene by alcohol
Vapor-phase methylation of toluene using methanol and its isopropylation with 2-propanol has been investigated ina down flow reactor under atmospheric conditions using N2 carrier over a series of surface modified andunmodified ZSM-5 (Si/Al= 60-170) loaded with H3PO4, differing in the external surface treatment of the zeolites.The feed molar ratios of toluene/methanol and toluene/2-propanol were...
متن کاملApplication of GA in Optimization of Modified Benzene Alkylation Process
A genetic algorithm is used to optimize the modified benzene alkylation process. Based on the previous studies, the modified process increases ethylbenzene selectivity and decreases energy consumption at the same time. The inlet ethylene flow rate of each alkylation reactor is optimized in order to reduce the chance of transalkylation reactions but increase ethylbenzene selectivity. The byprodu...
متن کاملThe Estimation of Galactose in Plasma Using Galactose Oxidase.
The estimation of galactose in plasma by the enzyme system galactose oxidaseperoxidase was investigated. The method was found to be relatively specific for galactose although xylose and ascorbic acid reacted to a slight degree with the enzyme; lactose also reacted with the enzyme, probably because partial hydrolysis of the disaccharide released galactose. The relationship between absorbance and...
متن کاملDisorders of galactose metabolism.
Galactose metabolism occupies a central position in modern biology through its relationship to cell surface antigenicity and its metabolic function as a component of glycolipids and glycoproteins. Disturbances in three fundamental reaction sequences of this hexose have led to a delineation of pathways of the chemistry resulting in the understanding of its metabolic fate. These inherited disorde...
متن کاملMechanochemical N-alkylation of imides
The mechanochemical N-alkylation of imide derivatives was studied. Reactions under solvent-free conditions in a ball mill gave good yields and could be put in place of the classical solution conditions. The method is general and can be applied to various imides and alkyl halides. Phthalimides prepared under ball milling conditions were used in a mechanochemical Gabriel synthesis of amines by th...
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ژورنال
عنوان ژورنال: J. Chem. Soc., Trans.
سال: 1904
ISSN: 0368-1645
DOI: 10.1039/ct9048501071