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31) The study on catalytic oxidation of n-butane to maleic anhydride, in fluidized-bed reactor was investigated.

32) Glucose pentaacetat was directly synthesized from glucose and acetic anhydride with p-toluene sulphonic acid as catalyst under microwave irradiation.

33) The results show that cerous chloride has a better catalytic activity for the acylation of tert-butyl alcohol and acetic anhydride.

34) Perosmic anhydride when 48 degrees Celsius will melt, to 130 degrees Celsius when will seethe with excitement.

35) Synthesis of acyl azide from aldehyde, or acylhydrazine, or carboxylic acid , or acyl chloride, or anhydride, or ester is introduced in this paper.

36) The paper studied the esterification process between ricinus oil and phosphoric anhydride as well as influences to the reaction by making up prescription of materials and temperature.

37) At least one of the cathode, the anode, the separator, and the electrolytic solution contains a sulfone compound having an acid anhydride group and a sulfonyl group.

38) In this paper N-acetylated chitosan films were prepared by the reaction of chitosan and acetic anhydride in the medium CH 3OH and acetic acid.

39) Treatment of 4-chloroaniline (1) with equimolar amounts of mercury acetate, lithium chloride and excess acetic anhydride gave 2 in high yield.

40) It was deduced from FTIR that the condensation reaction was caused by a reaction of ketone group with anhydride.

41) In basic condition E ring was converted into the cyclohexanedicarboxylic anhydride to form purpurin 18 derivatives by the air oxidation.

42) The first route was using the liquid bromine to aromatize the 4-chlorotetrahydrophthalic anhydride to 4-chlorophthalic anhydride, The yield was 89%, and the purity was more than 99%.

43) Sulfuric acid and acetic anhydride were used as a cyclizing agent to prepare Ofloxacin intermediate.

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44) Dodecanol abietate succinic anhydride was synthesized from abietic acid. The structures of products were characterized by spectrum of IR, HNMR and MS.

45) Formyl L aspartic anhydride was prepared by the reaction of L aspartic acid and formic acid with magnesium oxide catalyst in acetic anhydride solvent.

46) A modified oligomer has been prepared by the reaction of epoxidized oil acrylate with maleic anhydride.

47) Stearone glycol fumaric acid ( SGF ) was synthesized with maleic anhydride, cinnamyl alcohol and ethylene glycol.

48) The hemisuccination process and reaction kinetics of stigmasterol with succinic anhydride using toluene as a solvent, pyridine as a catalyst were studied.

49) It's influence on the properties of anhydride cured epoxy resin was studied by scanning electron microscope, heat analysis, limiting oxygen index determination and other methods.

50) Hydrolysis time, temperature, acid concentration are the main hydrolysis factors of octenyl succinic anhydride modified starch.

51) The present invention belongs to the field of polymer material technology and is especially one kind of modified random styrene-maleic anhydride copolymer with improved toughness and strength.

52) An alcohol evaporator for production of acetic acid and acetic anhydride exploded during operation.

53) Phthalein acid anhydride Photophobic pharmaceutical and has special protective action on the ultraviolet ray. It can cure sunlight dermatitis, eczema, etc.

54) This invention relates to a preparation method of substituent glutaric acid anhydride.

55) The consumption and market at home and abroad were introduced in detail. It was pointed out that the key to produce maleic anhydride from n-butane was the development of catalysts. Some proposals ...

56) The market demand, price and development trend of world phthalic anhydride are reviewed.

57) IBMA Resin has been obtained by the method of sedimental copolymerization of two main monomers, isobutylene and maleic anhydride. It has wide application and is one of fine chemical products.

58) First, T-2 toxin reacted with succinic anhydride in steam-bath to synthesize T-2 hemisuccinate(T-2HS). Thin layer chromatography analysis showed that the objective hapten was obtained successfully.

59) The emphasis was on the synthesis methods including the ones using fumaric acid or cis- fumaric anhydride or cis- butene bicarboxylic anhydride as raw materials.

60) Cetyl phthalate was prepared from phthalic anhydride and cetyl alcohol as raw materials catalyzed by non-acid catalyst.