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And solicitation reagent in the preparation of 2,4- dichlorofluorobenzene from 2-Chloro-1-fluoro-4-nitrobenzene via reactive distilled chlorate were investigated.
和引发剂等因素对反应速度及产率的影响。
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The conversion of eicosapentaenoicacid esters in Chlorella USTB-01 and the formation as well as extraction of EPA were investigated in this paper.
对小球藻USTB-01细胞中二十碳五烯酸酯的转化和二十碳五烯酸的生成与提取进行了研究。
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The parameters for cobalt deposition from sulfate solution with chlorinated lime solution is investigated and applied to production.
从湿法炼锌过程所产生的二次含钴物料中提取钴,需经过浸出预中和,初步净化脱杂及析钴工序才能得到氢氧化钴中间产品。
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First, the preparation of l,2-dichloro-4-nitrobenzene, which l-chloro-4-nitrobenzene reacted with chlorine in a self-designed chlorinator, in presence of Lewis acid catalyst,.was investigated. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the yield of l,2-diehloro-4-nitrobenzene was 83.26%.
为此,本文首先在自行设计的塔式氯化器中,以对硝基氯苯为原料,路易氏酸作催化剂,分子氯氯化合成3,4-二氯硝基苯(合成3-氯-4-氟-硝基苯的原料),根据该氯化过程特征,利用正交试验设计方法结合单因素实验考察了有关因素对氯化过程的影响,优化得到了最佳的氯化工艺条件,3,4—二氯硝基苯的收率可达83.26%。
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First, a chlorinator was self-designed in this paper, and dichloride of 2-methyl-1-propene was synthesized by 2-methyl-1-propene reacted with chlorine fast in this reactor. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the yield and selectivity of dichloride of 2-methyl-1-prop-ene were more than 65% and 80% respectively. Second, the preparation of 2-methylene-1, 3-propanediol, which dichloride of 2-methyl-1-propene reacted with alkali was investigated. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the conversion of dichloride of 2-methyl-1-propene was 100%. Moreover the preparation of MPO, which 2-methylene-1, 3-propanediol reacted with hydrogen, in presence of Al_2O_3-Pd catalyst, was gotten, and the product was appraised.
本文在氯化反应过程中,自行设计制作出了氯化管式反应器,在该反应器中异丁烯和氯气迅速混合反应生成二氯异丁烯,根据该氯化反应特征利用正交试验和单因素试验考察了有关因素的影响并优化得到了最佳工艺条件,二氯异丁烯的总收率达65%以上,选择性达80%;接着,对二氯异丁烯进行水解反应制得了2-甲烯-1,3-丙二醇,讨论了相关因素对水解反应的影响,并通过正交试验和单因素试验得到了较佳工艺条件,二氯异丁烯的转化率达100%;同时还对制备的2-甲烯-1,3-丙二醇在常压下采用三氧化二铝负载钯催化剂催化加氢得目的产物MPO,并对产品进行了鉴定,从而打通了整个工艺路线。
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The effect of chlorine dioxide and hydrogen peroxide on the shelf life of wet raw noodle was investigated.
主要研究了二氧化氯和双氧水在湿生面条保鲜方面的作用。
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Effects of various factors on the yield and chlorine content were investigated.
考察了诸因素对产物得率和氯含量的影响。
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With HZSM-5, nitration of chlorobenzene by N2 05 has been investigated.
本文研究了在HZSM-5分子筛催化下,五氧化二氮对氯苯的硝化反应。
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The influence factors of mechanical properties of the ionomers, the compatibilization of the ionomer for SBS/ chlorohydrin rubber blend and the effect of mass ratio on properties of ionomer/polypropylene blends were investigated.
研究了离聚体力学性能的影响因素、离聚体对SBS/氯醇橡胶的增容作用、质量比对离聚体/聚丙烯共混物性能的影响。
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Alkylations of benzene with dodecene and/or chloromethane in the room temperature ionic liquid 1-methyl-3-butylimdazole chloride-aluminium chloride as catalyst have been investigated with high conversion and selectivity.
首次研究了在氯铝酸室温离子液体系中二甲苯与苯乙烯的烷基化反应制1-苯基1-二甲苯基乙烷及其衍生物。考察了离子液体催化剂量和反应条件的不同对产物组成及副产物数量的影响。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。