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However, you can make a small fortune even with a horrible conversion ratio.

但是,你甚至可以用一个小发财可怕转化率

In this thesis, this system is used for epoxidation of propylene and styrenewith good results. The solvent effect is investigated for epoxidation of styrene. In the mixedsolvent of dimethyl phthalate / TBP or phenyl ether / TBP, the selectivity for styreneoxide is good but the conversion of styrene is low due to the coordination to thecatalyst of the solvent. When part of dimethyl phthalate or phenyl ether is replacedby toluene, the conversion increases and the selectivity keeps constant.

邻苯二甲酸二甲酯或二苯醚等与磷酸三丁酯的混合溶剂中环氧化的选择性较高,但由于溶剂对催化剂的配位作用抑制了催化剂的活性,苯乙烯转化率很低;当部分的邻苯二甲酸二甲酯或二苯醚被甲苯取代后,苯乙烯的转化率提高,生成环氧苯乙烷的选择性不变。

Underoptimal conditions, in toluene / dimethyl phthalate / TBP, after EAHQ was oxidizedwith 〓, then the catalyst and styrene were added, the conversion of styrene basedon EAHQ is 68%, the selectivity for styrene oxide based on styrene is 92% and theTON of the catalyst is 500; in toluene / phenyl ether / TBP, epoxidation of styrenewas performed with 〓 generated in situ, the conversion is 46%, the selectivity is94% and the product can be separated by distillation under reduced pressure.

优化条件下,甲苯/邻苯二甲酸二甲酯/TBP(2/2/1,体积比)中,EAHQ先用〓氧化完全后,再加入催化剂A和苯乙烯进行环氧化反应苯乙烯相对于EAHQ的转化率为68%,生成环氧苯乙烷的选择性为92%,催化剂A的TON达到500;甲苯/二苯醚/TBP(1/3/1,体积比)中,原位生成〓条件下苯乙烯相对于EAHQ的转化率为46%,生成环氧苯乙烷的选择性为94%,产物可通过减压蒸馏分离。

The palladium catalyzed double carbonylation of phenyl iodide in SC CO〓 to α-keto amide and amide was an environmentally friendly reaction.

1CO〓压力为1.0MPa时,反应转化率和速率情况最佳,进一步增加CO〓压力时导致反应产物总收率、转化率降低,但却有利于提高酰胺的选择性。

Considering from the results,competitive results were the point of transformation efficiency of agricultural technical results.

提高;农业科技;成果;转化率;从成果自身角度看,与粮食作物有关的竞争性成果是提高农业科技成果转化率的焦点。

The results showed that the starved fish had significant higher white-cell counts than the fed fish,the peak value occurring 20 d after starvation.There were higher multiplication and efficiency of transformation in the lymphocytes in the starved fish than those in the fed fis...

结果表明:饥饿后红鳍东方鲀外周血中白细胞的数量明显高于正常投喂组,且在饥饿20 d时白细胞的数量达到最大值;饥饿后脾脏中淋巴细胞的增殖转化能力与转化率比正常投喂组高,饥饿10 d时达到最大值,随着饥饿时间的延长,淋巴细胞的转化率逐渐降低;饥饿后脾脏中巨噬细胞的吞噬活性与吞噬率均高于正常投喂组,且在饥饿20 d时达到最大值。

Adding 3. 2vol% steam in feed gas CH〓 conversion increased to 94%, the CO〓 conversion was maintained in 98%, and the less carbon was deposited, the stability might be more excellent.

添加3.2vol%的水蒸汽后,CH〓转化率提高到94%,CO〓的转化率保持98%不变,H〓/CO比约有0.06的提高,同时积碳更少,稳定性也可能更好。

The epoxidation can be performedwell when the concentration of quaternary ammoniumsaltand sodium tungstate is 0.06 mol/L and 0.03 mol/L, respectively.

结果表明,季铵盐和钨酸钠的浓度分别为0.06,0.03 mol/L时的催化效果最佳;α-和β-蒎烯的转化率随着H2O2与蒎烯的量比增大而增大,当H2O2与α-蒎烯和β-蒎烯的量比分别为2.0和1.8时,其转化率均可达到100%;较高的温度不利于环氧化反应的进行,因此,环氧化反应温度需控制在20℃以下。

The results showed that the mixed-addenda heteropolyacids H6PM o9V3O40,H10PMo5V7O40and H11PMo4V8O40 c an improve the conversion of 2-octanol,selectivity for hexanoic acid and the r ate of production.When the amounts of heteropoly acid are 14%,10%and 14% of the weight of 2-octanol,co...

结果表明:H6PMo9V3O40、H10PMo5V7O40、H11PMo4V8O40等多元杂多酸均可提高仲辛醇的转化率、己酸产率和己酸选择性,并确定了这3种催化剂的最佳用量:当它们分别为仲辛醇质量的1 4%、1 0%、1 4%时,仲辛醇转化率可达98 3%、97 6%、100%;己酸的选择性可达85 7%、85 8%、78 8%;其性能明显优于钒催化剂。

It shows that the conversion is increasing with the temperature and the orientation order of ferroelectric liquid crystal.

实验表明随着温度的增加单体的转化率增加,随着铁电液晶的有序度的增加单体的转化率增加。

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If you have any questions, you can contact me anytime.

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