查询词典 Chain Reaction

Therefrom; heating said waste edible oil from which solid materials have been removed to a predetermined temperature, thereby removing moisture and materials of odor contained in the waste edible oil therefrom by evaporation; dissolving in alcohol a catalyst containing at least one type or more types of alkaline material selected from a group comprised of at least potassium hydroxide, potassium carbonate and potassium alcoholate, thereby preparing an alcoholic solution containing the catalyst; mixing said waste edible oil from which said solid materials, moisture and materials of odor have been removed with said alcoholic solution containing the catalyst and stirring the waste edible oil and alcoholic solution, thereby accelerating a catalytic reaction between the waste edible oil and the alcohol and obtaining a reaction product between the waste edible oil and the alcohol; separating said reaction product into a light solution and a heavy solution; mixing the light solution obtained in the separation step with a solid absorbent, thereby impurities such as residual catalyst, odor material, moisture contained in the light solution being absorbed by the solid absorbent; and separating and removing said solid absorbent from a mixture of the solid absorbent having absorbed the impurities and the light solution.

完成前述对象，根据这项发明的特点是获得的柴油燃油从废油脂透过几个步骤：去除固体材料包含在一个废油脂倾倒，从餐厅，食品厂，民政等因此；暖气说，废油脂从哪个固体材料已被调离到一个预定的温度，从而消除了水分和材料的气味，载于废油脂因此由蒸发；溶解在酒精的催化剂至少含有一种或更多类型的碱性材料选定由一组组成的至少氢氧化钾，碳酸钾和钾，醇，从而准备一醇溶液中含有催化剂；混合说，废油脂从哪个说，固体材料，含水率和材料的气味已被剔除与说，酒精性解决方案载有催化剂和搅拌废物食用油及含酒精的解决办法，从而加速催化反应之间的废油脂及酒精和获得反应产物之间的废油脂及酒精；分开说，反应产物成为一个轻型的解决方案和沉重的解决方案；混合轻解决方案，获得了在分离一步一个坚实的吸水性，从而杂质，如残留的催化剂，气味的物质，水分，载于轻解决方案，被吸收的固体吸收剂；分离和消除说，固体吸附剂从混合物对固体吸收剂吸收了杂质和轻便的解决办法。

The results show that the initial phase is non-homogeneous reaction,solid-liquid mass transfer coefficient is the main factor on the reaction rate,N-methyl-2-pyrrolidone can accelerate the dissolution of polyester film and prompte the alcoholysis reaction into homogeneous process.

结果表明，反应初始阶段为非均相阶段，固-液间传质系数是影响反应速率的主要因素，加入NMP可以加速PET的溶解，促使醇解反应快速进入均相阶段。

The effect to rate of production of the reaction active of different alkaline earth, the reaction efficiency of different low-carbon alcohols and reaction time were investigated.

考察了不同碱土金属、不同低碳醇及反应时间对醇盐产率的影响。

Alkylamine reaction with dialkyl cyanodithioiminocarbonate was catalyzed by quaternary ammonium salts at room temperature to yield 3-alkylamine-5-amino-1,2,4-triazole in good quality and high yields. After imidization and reaction with an α,β-unsaturated acid derivative, the reaction intermediate was hydrolyzed in the presence of a Lewis acid to obtain the target product.

烷基胺与氰基亚胺硫代二甲酯在季氨盐催化作用下得到质量好、收率高的3-烷氨基-5-氨基-1，2，4-三氮唑，进一步经过亚胺中间体并与α，β-不饱和酸酯作用后，中间产物在Lewis酸催化作用下水解得到三唑嘧啶酮。

2Obtained alkylate reaction technical parameter :reaction time of alkylate of rapeseed oil phospholipid was 2 hours . after 2 hours the reaction almost cease

2确定烷基化反应的工艺参数：菜油磷脂的烷基化反应所用的时间为2小时，在2小时之后反应基本停止

Then Doripenem came into the market in the July ,2005. We studied the synthesis of Doripemen.Firstly, we synthesized the chemical 2 from the starting material------o-hydroxylphenylacylamine through Reformastky reaction, alkylation, Diekmann reaction, enolization, esterification and etc. Secondly, we synthesized the chemical 3 from L — hydroxylproline through the protection of carboxyl, amidogen and hydroxyl group, reduction by NaBr, SN_2 substitution and Mitsumobu reaction.

我们以水杨酰胺为起始原料，经Reformatsky反应、烷基化、Diekmann环合、烯醇化、酯化等反应合成双环母核2；再从L-羟基脯氨酸出发，经酯化保护羧基、保护氨基、保护羟基、硼氢化还原酯得醇、Sn2取代和Mitsumobu反应等合成巯基侧链3；最后由化合物3经脱保护、水解得硫醇，和化合物2在二异丙基乙基胺的作用下缩合，最后Pd／C催化脱保护，历经16步反应最终得到产物多尼培南。

The result was showed that the optimal process conditions were presented as follows: molar ratio of methyl glucose amine to oleic acid 2.5, reaction time 8h, reaction temperature 90℃, and the catalyst dosage 1.5% to the oleic acid reaction.

结果表明，最佳工艺条件为：甲基葡萄糖酰胺和油酸的摩尔比为2.5，反应时间为8 h，反应温度为90℃，催化剂用量占油酸用量的摩尔分数为1.5%。

The results indicate that the optimized sulfonylation reaction time is 4 h, the materiel rate of chlorosulfonic acid and 2-chloroimidazo[1,2-α]pyridine is 1.2 : 1, with ethylamine the yield increasing from 15.4% to above 70%; the optimized ammonolysis reaction time is 3 h and the reaction temperature is 27℃, with the acetonitrile yield increasing from 60.1% to above 79.6%.

实验结果表明，磺酰化反应的最佳反应时间为4 h，氯磺酸与2-氯咪唑并[1，-α]吡啶的用量比为1.2：1，加入三乙胺可将收率由15.4%提高到70%以上；氨解反应的最佳反应时间为3 h，反应温度为27 ℃，加入乙腈可将收率由60.1%提高到79.6%；方案经改进后，总反应时间缩短3 h，收率提高了5.5%。

A reaction pathway for ammonolysis of O,O-dimethylphosphorochloridothioate without catalyst was proposed,based on the reaction mechanism of acyl halide ammonolysis ,and the pseudo-homogeneous reaction kinetics were founded.

模型表明：在反应前期，O，O-二甲基硫代磷酰氯浓度对速率影响很小，反应速率呈拟一级反应特征；但在反应后期，反应速率呈明显的二级反应特征。

To determine the condition of chromogenic reaction between iodine and amylum quantitatively, the author studied the law in the course of chromogenic reaction between iodine and amylum with the aid of spectrophotometer quantitatively, and found that maximum absorption wavelength is 610 nm, and the absorbance in the course of chromogenic reaction between iodine and amylum has not changed within 7 hours.

为了确定碘和淀粉反应的定量关系，本文利用分光光度计定量地研究了碘和淀粉显色反应过程中吸光度的变化规律，发现碘和淀粉显色反应的最大吸收波长为610 nm，碘和淀粉显色反应的吸光度在七小时内基本不变，可以进行比色分析。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。