查询词典 distillation

In the technical scheme of the invention, reactant, ammonia and hydrogen peroxide are ordinally added into the reaction system of catalyst containing Ti-MWW-F molecular sieve and solvent, and after stiring, temperature raising and reaction are finished, an oxime product is produced by filtering, distillation, liquor filtering and separation.

本发明的技术方案是将反应物酮或醛、氨、过氧化氢依次加入到含Ti-MWW-F分子筛的催化剂和溶剂的反应体系中，搅拌，升温，反应结束后，经过滤，蒸馏滤液，分离得到产物肟。

A new method is presented for synthesis of organosilicon compounds directly from precipitated white carbon black by reduced pressure distillation.

该文研究了以沉淀白炭黑为原料，采用减压蒸馏法直接合成六配位体有机硅化合物的新方法。

Traditional simultaneous distillation extraction was used to extract the volatile compounds from Macrobrachium nipponense,Penaeus chinesis and Palaemon modestus Heller.A total of 116 volatile flavor compounds were purified and identified successfully by GC-MS.

研究采用同时蒸馏萃取法提取，利用GC-MS分析了中国对虾、秀丽白虾及日本昭虾的挥发性风味成分。3种虾共鉴定出116种风味物质，对虾的挥发性化合物总量最高，日本昭虾其次，秀丽白虾最低。

The experiments were conducted in a distillation column simulator with sieve trays by using air and mixtures of liguid paraffine and water.

以空气和油、水混合物为介质，在冷模塔内进行筛板上气、液、液三相流动的操作工况及其转变的研究。

Results Nine compounds from supercritical CO2 extraction were identified and the main constituents were pentadecane, ethyl pmethoxycinnamate and ethyl cinnamate. Twentyeight compounds from water distillation were identified and the main constituents were δ3carene, ethyl pmethoxycinnamate and ethyl cinnamate.

结果 沙姜超临界CO2萃取物中分离鉴定出9种化合物，主要成分为十五烷、肉桂酸乙酯、对甲氧基肉桂酸乙酯等；水蒸气蒸馏法中分离鉴定出28种化合物，主要成分为δ3蒈烯、肉桂酸乙酯和对甲氧基肉桂酸乙酯等。

Results Nine compounds from supercritical CO2 extraction were identified and the main constituents were pentadecane, ethyl p-methoxycinnamate and ethyl cinnamate. Twenty-eight compounds from water distillation were identified and the main constituents were δ-3-carene, ethyl p-methoxycinnamate and ethyl cinnamate.

结果 沙姜超临界CO2萃取物中分离鉴定出9种化合物，主要成分为十五烷、肉桂酸乙酯、对甲氧基肉桂酸乙酯等；水蒸气蒸馏法中分离鉴定出28种化合物，主要成分为δ-3-蒈烯、肉桂酸乙酯和对甲氧基肉桂酸乙酯等。

The distillation column with a single photochlorination reactor was built in this paper, which is used in the laboratory study. In light initiation, the semi-continuous operation was applied to study the influence of the chlorine flow, the reflux and the height of the packing on photochlorination of acetic acid. Crude MCA with a purity of 90% or more was attained and the feasibility of this technology was proved.

本文建立了适合实验室研究的背包式光氯化反应精馏耦合装置，采用半连续操作的方法，在光引发条件下，考察了氯气流量、回流量和填料高度对乙酸光氯化反应的影响，得到了含量达90％以上的氯乙酸粗品，证实了工艺的可行性。

In the distillation column with a single reactor, the outer loop reactor is designed and applied. The reaction dynamics datas of photochlorination of acetic acid in the reactor were tested. According to parallel-consecutive reaction dynamics model, the parameters were fitted and the model result tallys experiment result well.

在背包式反应精馏装置中，采用了外环流反应器，实验测定了该反应器中乙酸光氯化的反应动力学数据，采用平行-连串反应动力学模型进行了参数拟合，所得模型计算值和和实验值吻合较好。

The reaction results of the selective hydrogenation of MethylAcetyleneand Propadiene in C 3 distillate by catalytic distillation were investigated with randomlypacked structure of packingtype catalyst, the combined structure of sieve tray and packingtype catalyst as well as the structure with interlaced packing and ordinary catalyst.

考察了填料状催化剂散装结构、筛板填料状催化剂复合结构、规整填料与普通催化剂交错排列结构等用于C3 馏分中丙炔、丙二烯催化蒸馏选择加氢过程的反应效果，综合考虑催化剂制备的难易、工业装置长周期运转的必要性、传质对反应的影响等因素，推荐在工业装置上采用规整填料与催化剂交错排列结

The method comprises heating up the lactic acid solution to gasify at 150-200 degree C, mixing the obtained mixed vapour of lactic acid and water with the carrier gas, entering into gas-solid catalytic reactor to get the reaction product gas by the action of a modified Y zeolite molecular sieve catalytic agent and dewatering after heating up the mixed gas to 200-450 degree C, obtaining the propenoic acid solution through gas-liquid dissociation after cooling the reaction product gas, obtaining coarse propenoic acid products form the propenoic acid solution by gas stripping, azeotropic distillation, extraction and rectification in turns.

其特征在于将乳酸水溶液加热至150～200℃气化得到的乳酸-水混合蒸气与载气混合，将混合后的气体继续加热到200～450℃后进入气-固相催化反应器中经改性Y沸石分子筛催化剂作用脱水得反应产物气体，反应产物气体冷却后经气液分离得到丙烯酸溶液，丙烯酸溶液再依次经过气提、共沸蒸馏或萃取、精馏得到粗丙烯酸产品。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。