The refined lanolin is reacted with acetic anhydride to obtain acetylated lanolin.
精制羊毛脂和乙酰化羊毛脂均可做为皮革加脂剂的原料组份。
Coumarin has been synthesized in Perkinreaction of acetic anhydride and salicylaldehydecatalyzed by anhydrous potassium carbonate.
用无水碳酸钾代替无水醋酸钠催化合成了香豆素。
Methanol is a basic organic chemical raw material, which can be used to synthesize dimethyl ether, formaldehyde, HAc and acetic anhydride, etc.
甲醇是基本有机化工原料，可进一步加工为二甲醚、甲醛、醋酸、醋酐等。
Metal deactivator N, N'-Di-acetyladipic dihydrazine was prepared by reacting diethyl adipate with hydrazine hydrate, and then was treated with acetic anhydride.
研究了由已二酸二乙酯与水合肼反应合成己二酰二肼。再用乙酸酐酰化己二酰二肼得到金属减活剂N。
Meanwhile, the influence of the ratio between phenyl hydroxide and acetic anhydride to translating rate was also studied, and the optimum technological condition…
同时考察了乙酸酐与苯酚物质的量比对苯酚转化率的影响，得到了合成乙酸苯酯的最佳工艺条件。
Acetylene has become increasingly prominent as a raw material for a whole series of organic compounds, among them acetaldehyde, acetic acid, and acetic anhydride.
对于整个系列的有机化合物，包括乙醛、乙酸、醋酸酐，乙炔已经成为越来越重要的原材料。
The hydrophobic gardenia blue pigment was prepared with the water-soluble gardenia blue pigment esterified by acetic anhydride, and catalyzed by hydrochloric acid.
研究有机溶剂/磷酸氢二钾双水相体系对栀子黄废液中栀子苷的萃取条件，并将萃取后的栀子苷用于栀子蓝色素的生产。
In this paper, 1 acetylaminoanthraquinone was synthesized by using 1 aminoanthraquinone and acetic anhydride as starting materials and by using acetic acid as solvent.
本文以1?氨基蒽醌和乙酐为原料，乙酸作溶剂，合成了1?乙酰氨基蒽醌。
The orthogonal design was used in the optimum synthesis of cyclohexyl nitrate with the mixture of nitric acid and acetic anhydride as the nitrating agent of cyclohexanol.
以硝酸-醋酐混合物为环己醇的硝化剂，利用正交试验设计描述了硝酸环己酯的优化合成。
The synthesis of monosaccharide ester catalyzed by lipase in organic solvents was studied, where monosaccharides and vinyl acetate or acetic anhydride serve as substrates.
研究了有机相中脂肪酶催化以单糖和乙酸乙烯酯或乙酸酐为底物的糖酯合成反应。
By high acetylation of chitosan at N position with acetic anhydride in a homogeneous medium known as acetic solution–alcohol-pyridine system, water-soluble chitosan was prepared.
探讨了如何控制在均相条件下以高脱乙酰度的壳聚糖为主要原料，在乙酸水溶液- 乙醇-吡啶介质中实现壳聚糖N位乙酰化反应的问题；
Experiments proved that before incomplete hydrolysis, acetic anhydride not only couldn'treplace acetic acid, but also had indirect masking action for the detection of impurities.
试验还证明，醋酸酐在未完全水解之前不仅不能代替醋醚，相反对与杂质检出有间接的掩蔽作用。
The regioselective nitration of toluene and chlorobenzene with nitrates and supported nitrates on solid acid catalysts and supports in the presence of acetic anhydride is studied.
该文讨论了应用固体酸催化剂和载体，在醋酐存在下，采用硝酸盐和载体硝酸盐硝化甲苯和氯苯的选择性。
This technique showed many advantages: low reaction temperature, mild reaction condition, high yield and purity, which was possible to replace acetic anhydride method to produce HMX.
该方法反应温度低、条件温和、产率高、产品纯度好，有望代替传统的醋酐法制备HMX。
METHODS: Potentiometric titration was adopted to determine the content of terbinafine hydrochloride using glacial acetic acid as solvent, acetic anhydride instead of mercury acetate.
方法：采用电位滴定法，以冰醋酸为溶剂，用适量醋酐代替现行标准中使用的醋酸汞，建立了测定盐酸特比萘芬原料药含量的方法；
In this paper, natural cotton cellulose was modified by the steam explosion, modified cellulose, acetic anhydride and fatty acids have been used to synthesize the long chain cellulose ester.
采用蒸汽闪爆技术对天然纤维素进行改性，并利用改性后的纤维素、乙酸酐和脂肪酸合成长支链纤维素酯。
Sulfuric acid and acetic anhydride were used as a cyclizing agent to prepare Ofloxacin intermediate. The reaction could be carried out under moderate conditions and facilitate industrial produce.
用硫酸乙酐混合物作环合剂，制备了氟嗪酸中间体．该方法具有反应条件温和、价格便宜、后处理简单的优点，适用于工业化生产。
In the presence of acetic acid and polyethylene glycol, chromic anhydride and acenaphthene react under mild condition and acenaphthene can completely convert into acenaphthenone.
在醋酸、聚乙二醇存在下，铬酸酐和苊在温和的条件下反应，苊可以完全转化为苊酮。
The both producing of acetic acid and anhydride acetic acid by methanol carbonylation is important, as well as the study of new technology.
对镍催化剂上常压下乙醇气相羰基化合成丙酸及丙酸乙酯进行了研究。
The both producing of acetic acid and anhydride acetic acid by methanol carbonylation is important, as well as the study of new technology.
对镍催化剂上常压下乙醇气相羰基化合成丙酸及丙酸乙酯进行了研究。
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