The catalytic activity of iodine in the esterification reaction was studied by synthesis cyclohexyl acetate from acetic anhydride, cyclohexano and acetic acid, cyclohexano.
DME is a preferred substitute for chlorofluorocarbons and can derive a number of products with high value such as dimethyl carbonate, acetic acid, acetic anhydride and formaldehyde.
The site includes capacity for acetic acid, vinyl acetate monomer, acetic anhydride, as well as vinyl acetate emulsions, GUR ultra high molecular weight polyethylene and Celstran.
The catalytic esterification of acetic anhydride and nine phenols were investigated in the presence of complex resin catalyst at 20 ℃, and its mechanisms were discussed.
Acetylene has become increasingly prominent as a raw material for a whole series of organic compounds, among them acetaldehyde, acetic acid, and acetic anhydride.
A new technology was proposed for preparing free sulfur and high anti-oxidation expandable graphite(Anti-O EG). The Anti-O EG was prepared using the perchloric acid,potassium permanganate and acetic anhydride. The optimum conditions of processing were that the mass ratio of graphite,perchloric acid and acetic anhydride was 1∶1∶0.07:(1～1.4),the oxidizing temperature and oxidizing time were 25℃ and 3h,respectively.
最佳反应条件:活化淀粉15.87 g,反应温度70℃,醋酸酐用量28 g,催化剂浓硫酸用量0.7 g,在此条件下制得的淀粉醋酸酯的取代度DS=2.465。
Amount of acetic anhydride is main factor,temperature of reaction,amount of activation catalyst are secondary factors and the best reaction condition are as follows:activated starch is 15.87 g,reaction temperature is 70℃,acetic anhydride is 28 g,oil of vitriol is 0.7 g. Under these conditions we will obtain high substitute starch acetate(DS=2.465).
in the vapor phase with acetic anhydride or thioacetic acid has been carried out using potassium acetate or pyridine as catalyst.
In this paper, 1,1-Diacetate was synthesized from furfural and acetic anhydride acidic bentonite friendly to environment as catalyst with excellent yield(87.6%).
Monochloroacetic acid was prepared by using acetic anhydride or sulfur as catalysts to chlorinate acid respectively.