工业生产中常用苯、环己烷、正戊烷等作夹带剂进行恒沸精馏生产无水乙醇。
Benzene, cyclohexane and normal pentane etc. are frequently used as entrainers in industrial production of anhydrous alcohol through constant boiling and fine distillation.
采用邻二甲苯和一氧化碳为原料、无水三氯化铝为催化剂,对3,5-二甲基苯甲醛的羰基化合成反应进行了研究。
A new method related to the carbonylating synthesis of 3,5-dimethylbenzaldehyde was studied using o-xylene and CO as the raw materials and anhydrous AlCl3 as the catalyst.
用无水硫酸铜作催化剂,在微波辐射下催化合成苯甲醛乙二醇缩醛。
Benzaldehyde ethylene glycol acetal was directly synthesized from benzaldehyde and ethylene glycol under microwave irradiation with cupric sulfate as catalyst.
该文研究了微波辐射和常规加热下卤素交换氟化合成对氟硝基苯的方法,提出了共沸干燥和微波干燥制备无水KF的方法。
The halogen exchange method to prepare p fluoronitrobenzene under microwave irradiation and conventional heat was studied. Drying KF by azeotropy and microwave irradiation was proposed.
以乙酸酐、乙基苯和无水三氯化铝为原料合成对乙基苯乙酮,并利用碘仿反应氧化对乙基苯乙酮制备对乙基苯甲酸。
The p-ethylacetophenone was synthesized with acetylated, ethylbenzene and anhydrous aluminium chloride, then was oxidized top-ethylbenzoic acid with iodoform reaction.
分别以无水乙醇及体积比为1:1的无水乙醇与苯的混合溶液为溶剂,以二硫化碳和单质硫为硫源。
Absolute ethanol and a mixed solution of ethanol and benzene with the volume ratio of 1:1 are used as the solvents, and carbon disulfide and sulfur powders as the sulfur ions source, respectively.
由苯与异丁酰氯在无水三氯化铝作催化剂的条件下制备苯基异丙基酮。
Methyl 1 phenyl Propanone was synthesized with benzene and iso butyryl chloride by using anhydrous aluminium trichloride as catalyst.
研究了以无水氯化钙为催化剂在中性条件下合成2, 4- 二硝基苯腙的新方法。
A new route for preparing 2,4-dinitrophenylhydrazones by treating aromic aldehydes or alkane ketones and 2,4-dinitrophenylhydrazines with anhydrous calcium chloride as a catalyst.
将PVPK30、SDS、氟苯尼考混合均匀,粉碎,过150目筛,然后再加入无水葡萄糖,混合均匀。
PVPK30, SDS and florfenicol are mixed uniformly, crushed, pass through a 150mesh screen, and then are added with the anhydrous glucose to be mixed uniformly.
用无水硫酸铜作催化剂,在微波辐射下催化合成苯甲醛乙二醇缩醛。
Synthesis of benzaldehyde glycol acetal catalyzed by strong-acid cation-exchange resin;
用无水硫酸铜作催化剂,在微波辐射下催化合成苯甲醛乙二醇缩醛。
Synthesis of benzaldehyde ethylene glycol acetal under microwave irradiation catalyzed by sulfate;
用无水硫酸铜作催化剂,在微波辐射下催化合成苯甲醛乙二醇缩醛。
Synthesis of benzaldehyde ethylene glycol acetal under microwave irradiation catalyzed by sulfate;
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