選擇催化轉化 的英文怎麼說

中文拼音 [xuǎnzháicuīhuàzhuǎnhuà]
選擇催化轉化 英文
selective catalytic conversion
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 擇 : 擇動詞（挑選） select; pick; choose
  • 轉 : 轉構詞成分。
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  • 轉化 : 1. （轉變） change; transform 2. [化學] inversion; conversion
  1. Cyanopyridine, intermediate of rimifon, was synthesized from 4 - picoline using vanadium oxide as a catalyst in fixed - bed reactor, reached 99 % conversion of 4 - picoline, 88 % selectivity and 87. 12 % yield of 4 - cyanopyridine

    以4 -甲基吡啶為原料，在固定床反應器中通過含氧化釩的催化劑發生氣固相接觸氨氧化反應制備雷米封中間體4 -氰基吡啶， 4 -甲基吡啶的轉化率為99 % ， 4 -氰基吡啶的選擇性為88 % ，收率為87 . 12 % 。
  2. Conversion and selectivity of catalytic reactions as well as the deactivation rate of the catalyst itself is very temperature-sensitive.

    催化反應的轉化率和選擇性以及催化劑本身的失活速率均對溫度十分敏感。
  3. Studied the liquid - phase synthesis of butyl acetate from n - butyl alcohol and acetic acid using the supported heteropoly blue as catalyst. examed several factors imposing on esterification. the results revealed : using this catalyst, the reactions conversion percentage reaches nearly 100 %, product yield is 98. 9 %, selectivity is 98. 9 %. reusing it 10 times, the efficiency is still well. in addition, using this catalyst, the reactions temperature is mild, the reaction time is short and the equipment hasnt any erosion. furthermore, there is no “ threewastesdischarge

    對以負載型雜多藍為催化劑的乙酸與正丁醇的液相酯化反應進行了研究.考察了影響酯化反應的因素.結果表明：以負載型雜多藍為催化劑，酯化反應轉化率接近100 % ，收率可達98 . 9 % ，選擇性為98 . 9 % ，重復使用10次催化效果仍好.該催化劑還有反應條件溫和、反應時間短、對設備無腐蝕、無三廢排放等優點
  4. ( 9 ) by studying matching between catalytic converter and exhaust gas system, the conclusions having been gotten as follow : " purifying step by step and driving step by step " and " mental substrate and chinaware substrate being used in same engine " being the laying principles in exhaust gas system, which can solve the contradiction between high converting efficiency of exhaust emission and small loss of power, fuel economics, the rapid light - off and laying difficulty of catalyst

    （ 9 ）進行了催化轉化器與排氣系統的匹配研究，對于催化劑的布置，提出了「分級凈化，逐級推動」的原則；對于載體形式的選擇，提出了「金屬載體和陶瓷載體復合」使用的原則。這樣可以良好的解訣催化轉化器與發動機匹配時，排氣污染物高凈化率與動力性經濟性損失小之間的矛盾、快速起燃和結構布置困難的矛盾。
  5. Abstract : aim to synthesize a new prodrug, resveratrol trinicotinate. methods in presence of lithium and a catalytic amount of naphthalene, the reaction of p - methoxybenzyl trimethylsilyl ether and 3, 5 - dimethoxylbenzaldehyde gave resveratrol after a series of translation. resveratrol trinicotinate was obtained by the reaction of resveratrol and nicotinoyl chloride hydrochloride. results a mutual prodrug resveratrol trinicotinate was designed and synthesized. conclusion a novel method for synthesis of resveratrol and resveratrol trinicotinate has been afforded. the e - isomer is selectivily obtained by dehydration of the compound 2 with khso4

    文摘:目的合成一種前藥白藜蘆醇煙酸酯.方法在金屬鋰片和催化量的萘的存在下， 3 ， 5 -二甲氧基苯甲醛與對甲氧基苯甲醇的三甲基硅醚反應經過一系列轉變得到白藜蘆醇，白藜蘆醇與煙酰氯反應得到白藜蘆醇煙酸酯.結果設計併合成了白藜蘆醇煙酸酯.結論提供了一種合成白藜蘆醇及白藜蘆醇煙酸酯的方法，採用khso4脫水可選擇性的得到反式產物
  6. A process for preparing m - dichlorobenzene by atmospheric selective transfer reaction of p - dichlorobenzene in the presence of alcl3 and h2o is described. effect of selectivity of the reaction is discussed. the best technological conditions are determined

    闡述了常壓下對二氯苯在催化劑無水三氯化鋁及助催化劑水的存在下發生轉位反應，高選擇地制取間二氯苯的工藝過程；討論了影響產物選擇性的有關因素，確定出適宜的工藝條件。
  7. Ethyl vanillin was synthesized by the phase - transfer catalysis cteab and o - ethoxyphenol, which was prepared from pyroeatehol with an overall yield of 55. 2 %, and the factors in the reaction, such as phase - transfer catalysis and temperature, were discussed

    摘要以鄰苯二酚為原料，首先合成中間體鄰乙氧基苯酚，然後以十六烷基三乙基溴化銨為相轉移催化劑合成了乙基香蘭素，考察了相轉移催化劑的選擇及反應溫度，最後收率為55 . 2 % 。
  8. Selectively catalytic conversion of carbon dioxide to dimethyl carbonate

    二氧化碳向碳酸二甲酯的選擇催化轉化
  9. Besides policy factors, five methods of cost - cutting of biodiesel are reviewed, including new raw material with higher oil content, shorter regeneration cycle, which is suitable for infertile soil and different climatic conditions ; heterogeneous catalysts ; new technologies ( e. g. supercritical methanol and ultrasonics ) ; higher added value utilization of by - product glycerin with simple method ( propylene oxide chloride, 1, 3 - propanediol, pyruvic alcohol etc. ) and moderate scale of production

    摘要綜述了除政策因素外，降低生物柴油生產成本的5種方法：選擇含油率高、再生周期短、適應貧瘠土地及不同氣候條件的新型植物原料；研究新型固體催化劑；引入新工藝（超臨界法和超聲波法） ；使用比較簡便的方法將廢棄的甘油轉化為高附加值的產品（環氧氯丙烷、 1 ， 3 -丙二醇、丙酮醇等）以及適度生產規模等。
  10. Selection of electron - transmitter in dye degrading by photo - catalytic oxidation

    光催化氧化降解染料中電子轉移體的選擇
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