查询词典 molecular distillation

The following dehydration techniques of ethanol: distillation ,molecular sieve separation,membrane separation and corn adsorption are mainly concerned.

介绍了采用精馏法、分子筛分离法、膜分离法和作物吸附法制备无水乙醇的方法及其近年来无水乙醇制备的新进展。

Anhydrous magnesium chloride may be prepared from materials containing magnesium chloride such as magnesium chloride hydrate, carnallite or bittern by different dehydrating methods of organic solvent distillation or molecular sieve absorption, gas protective heating, discomposing the MgCl2-NH3 complex that can be composed from high boiling-point polar-solvent system...

无水氯化镁制备技术经历几十年不断的探索，取得了一些进步，但彻底改变耗能高、污染腐蚀严重、流程复杂的工艺过程，开发流程简单、低污染腐蚀、低成本的绿色工艺仍然需要更深入的研究。

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。

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。

In order to prolong the running cycle of producing high purity n-hexane from reformate raffinate through adsorption-distillation technology, coking of olefins in the channels of 5A molecular sieve and regeneration of coked 5A molecular sieve were studied by microstructure analysis.

为实现吸附-精馏耦合由重整抽余油生产高纯度正己烷工艺的长周期运行，采用微结构分析方法研究了烯烃在5A分子筛孔道中的结焦行为及失活分子筛的再生工艺。

Molecular laser follows in ArF (193 Nm) and laser of solid of Nd ∶ YAG (213 Nm) differs two kinds the laser of wavelengh denudes in the system, factor of elemental fractional distillation all compares groovy mode to fall to be close to more at 1, make clear use medium to hold back discharge to be opposite gas collosol beforehand effect of fractional distillation of the element after ionization is able to restrain effectively.

在ArF准分子激光(193 nm)和Nd∶YAG固体激光(213 nm)两种不同波长的激光剥蚀系统中，元素分馏因子均比常规模式下更接近于1，表明采用介质阻挡放电对气溶胶预电离后元素分馏效应得以有效抑制。

The experiment is carried out by multistage molecular distillation.

得出了刮膜式分子蒸馏技术提纯α-亚麻酸的工艺条件。

Most reputable fish oil manufacturers use molecular distillation to remove harmful contaminants which is a very effective process.

多数知名鱼油厂家通过高真空蒸馏法去除有害污染物，这是一道很有效的工序。

So we can do the whole course of processing softgels.It has 3 molecular distillation production lines also and processes about 140 tons fish oil .The company is the Quality Demonstration Base for polyunsaturates fish oil.

公司还有分子蒸馏鱼油生产线3条，年可生产鱼油1400余吨，为全国多烯鱼油质量示范基地，愿我们能友好合作，共同发展，成为紧密合作伙伴。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。