Isotope separation ; stable isotope ; multi-component mixture separation ; cascade theory ; matched abundance ratio cascade

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The separation and purification technologies of amino acid,such as: precipitation ,ion-exchange,extraction and membrane separation were reviewed.

總結(jié)了氨基酸分離純化過程中常用的技術(shù)在线观看黄色的网站，如沉淀法、離子交換法小视频免费在线观看黄色、萃取法和膜分離法超碰免，介紹了各種技術(shù)的基本原理、特點(diǎn)和發(fā)展動(dòng)態(tài)无码精品视频在线观看。

During the compression, room between the compressor's rotor and cylinder reduces. Oil content in the compressed air will be lower than 2PPM after the compressed oil-air mixture goes through mechanical separation and filtering separation. Purified compressed air will cool down in aftercooler. Condensated water after the cool-down is drained out solenoid valve.

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The paper presents a more detailed discussion of the significance and present situation of coal separation and the latest development of air heavy medium fluidized bed coal separation technology.

詳細(xì)討論了選煤的意義和現(xiàn)狀以及空氣重介質(zhì)流化床選煤技術(shù)目前的發(fā)展给个黄色激情性爱网站。

Main contributions and achievements are as follows:A general non-equilibrium rigorous model for RDP is developed in this thesis. Based on the pseudo-homogenous assumption, two main factors reaction and separation are de-coupled, and an RDP model with the same format as that for a traditional distillation process is established. To solve the model with a large number of algebraic equations, modified M-K equations with tri-diagonal matrix form are developed based on the improved Separation Efficiency Functions, which greatly increases the iteration efficiency. This thesis also develops a general reactive distillation dynamic model. Through splitting of the differential variables based on SEFS, large-scaled differential algebraic equations can be solved with the improved Gear's algorithm which makes the dynamic model suitable for the on-line application. A simulation platform for the control loop design and evaluation of RDP by introducing control system equations into the dynamic model is also developed.A lactic acid purification pilot-scale RDP is investigated.

論文對熱點(diǎn)問題——反應(yīng)精餾過程的建模與優(yōu)化控制相關(guān)技術(shù)進(jìn)行了深入的研究偷拍视频三区，取得了一系列成果：1、建立了反應(yīng)精餾過程機(jī)理模型国产一级A片免费观看视频，基于擬均相假設(shè)亚洲性爱无码精品网站，將反應(yīng)和分離過程進(jìn)行解耦，推導(dǎo)出反應(yīng)精餾過程的非平衡級(jí)穩(wěn)態(tài)模型和動(dòng)態(tài)模型综合操逼网，通過引入推廣的分離效率函數(shù)欧美熟妇XXXX片，對模型變量進(jìn)行了合理劃分，顯著提高了模型求解效率国产久在线视频观看；將動(dòng)態(tài)模型和控制系統(tǒng)方程結(jié)合全色色网视频，建立了反應(yīng)精餾過程控制系統(tǒng)研究的輔助工具。2黄色电影禁止18国产、全面分析了乳酸提純反應(yīng)精餾新工藝試驗(yàn)裝置本溪国产黄色视频aa，利用本文建立的過程機(jī)理模型，對該試驗(yàn)裝置進(jìn)行了穩(wěn)態(tài)和動(dòng)態(tài)性能分析及水力學(xué)核算；設(shè)計(jì)和分析了單邊質(zhì)量控制方案黄色AⅤ无码视频，比較了間接和直接物料平衡控制兩種方案的控制性能这里只精品视频。

Effects of usage of the ammonia and ammonium carbonate, separation temperature and reaction time on precipitation separation were studied.

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From now on, in china, air-float separation technology and water- float separation technology mainly are applied for the separation between metal and nonmetal basing on recycling Fragmentized waste PCBs, but there exists low efficiency and second pollution for the tow recycle methods.

目前國內(nèi)處理廢棄電路板主要采用破碎后利用密度差的氣流風(fēng)選和水選進(jìn)行金屬與非金屬的分選99久久蜜v视频，存在效率低和二次污染等問題www.直接看黄色视频大全清纯。

In the separation of saponification resultants, the sodium soap of lanolin acid was converted to the calcium soap by Ca-C, which avoided emulsification in extraction and made separation easy, the complexing of cholesterol was limited through controlling the Ca-C dosage, which made subsequence separation simple.

對皂化產(chǎn)物分離過程，將皂化產(chǎn)物中的鈉皂轉(zhuǎn)化為鈣皂又粗又长又硬的视频，避免了萃取分離過程中的乳化現(xiàn)象，使分離更易操作口爆吞精一区二区久久；在鈣皂轉(zhuǎn)化過程中日本性爱三级片免费在线播放，通過控制鈣鹽C的加入量控制膽甾醇的配合，簡化了后續(xù)的分離工藝欧美少妇一级黄片。

The technology of separation and purification of the interesting protein was studied, centrifuge the sample and get the clear supernatant, remove protein by 50％ ethanol, concentrate by drying with freezing way, remove salt and pigment by dialysing, separation with G-50 and CM-cellulose52 column, concentrate by PEG6000, The purified sample was a single band after separation by SDS-PAGE.

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On the basis of summarizing separation method of acetic acid-water system, we studied the azeotropic distillation process of acetic acid-water system, selecting butyl acetate, isobutyl acetate and isopropyl acetate as entrainers. The influence of packing height, ratio of water to entrainer and acetic acid initial concentration to separation effect of azeotropic distillation was studied in detail. Simulation calculations of general distillation and azeotropic distillation were carried out. The influence of reflux ratio, theoretical plate, feed position, feed temperature and feed concentration to distillation process were discussed. Preferred process operation parameter, which had guiding meaning to practical production of distillation process were obtained. Basic data for the process amplifying design of azeotropic distillation tower were provided. Invest and operation energy consumption of two distillation methods were compared. The elementary technical design of azeotropic distillation tower was carried out on the basis of result of simulation calculation. The type of major auxiliary equipments and inner parts of packed tower were selected.The research results are as follows:(1) Butyl acetate, isobutyl acetate and isopropyl acetate could be selected as entrainer, and separation effect was near.

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