二胺替比林基溴代苯甲烷的合成及其分析应用的研究

合成了ＤＡｏＢＭ、ＤＡｍＢＭ、ＤＡｐＢＭ３个二安替比林甲烷芳香族衍生物,其中ＤＡｏＢＭ和ＤＡｍＢＭ为首次合成。研究了Ｈ３ＰＯ４介质中和Ｍｎ（Ⅱ）存在下其与Ｃｒ（Ⅵ）、Ｖ（Ⅴ）、Ｃｅ（Ⅳ）、Ｍｎ（Ⅶ）的显色反应,开发了几个试剂的应用体系,显示了良好的应用前景。     

SMC无捻粗纱浸润剂专用PVAc乳液的研制

本文简要阐述了ＰＶＡｃ乳液合成的反应机理，分析了各种原材料及乳液合成及乳液性能的影响，提出了成熟的合成工艺及配方，使用该工艺配方生产的ＰＶＡｃ乳液用于ＳＭＣ粗纱浸润制得的ＳＭＣ粗纱完全满足ＳＭＣ成型机组的使用要求，制得了性能优良的ＳＭＣ制品。     

硅源对全硅ＭＣＭ-４１中孔分子筛结构的影响研究

以十六烷基三甲基溴化铵、硅酸钠和正硅酸乙酯等为原料,研究了不同硅源对ＭＣＭ-４１分子筛合成的影响,并以ＸＲＤ、ＩＲ、热分析进行了表征,讨论了可能的机理。实验表明,用正硅酸乙酯比硅酸钠合成的全硅ＭＣＭ-４１分子筛的结构性能更好些。     

新型杀菌剂安克的合成及应用

评述了安克的有效成分ＤＭＭ的４种合成方法，介绍了ＤＭＭ的防治对象及作用机理等。     

MT的合成方法与应用前景

介绍了ＭＴ（Ｍｅｌａｔｏｎｉｎ）的五种合成方法,并简要论述了ＭＴ的应用及发展前景     

新型杀菌剂安克的合成及应用

评述了安克的有效成分ＤＭＭ的４种合成方法，介绍了ＤＭＭ的防治对象及作用机理等。     

MIBK催化合成研究进展

综述了国内外甲基异丁基甲酮（ＭＩＢＫ）的催化合成研究现状，进而指出，研制高效能的酸性与选择加氢双功能催化剂是丙酮一步法合成ＭＩＢＫ的研究重点，也是ＭＩＢＫ工业生产的发展方向。     

芳香醛和芳香胺参予的Mannich反应及其合成应用

研究了芳香胺和芳香醛参予的Ｍａｎｎｉｃｈ反应及其合成应用，以它们的原料合成了１０余种新的Ｍａｎｎｉｃｈ碱，也使Ｍａｎｎｉｃｈ反应由单一甲醛扩展到芳香醛，产率为６２．３％～９０．４％。     

取代肼基甲酸酯类化合物的合成与生物活性

合成了１２新的取代肼基甲酸酯类化合物,其化学结构 经ＩＲ,ＭＳ,＾２ＨＮＭＲ和元素分析确证。生物活性测试结果显示所合成的化合物棉花立枯病菌等均有一定的抑制活性。     

二茂铁羧酸四乙酰葡萄糖基酯的合成

采用ＰＴＣ法合成了３个二茂铁羧酸四乙酰葡萄糖基酯，通过ＥＡ，ＩＲ，＾ＨＮＭＲ及ＭＳ确证了所合成化合物的结构。     

Some aspects of the direct synthesis of platinum containing carbons by template assisted routes

Several aspects of the direct synthesis of noble metal containing carbons by template assisted routes are discussed. Commercial available silica as well as in situ formed silica were used as templates. The synthesis solutions consisted in different carbon precursors such as sucrose, pyrrole and polyvinyl alcohol (PVA), and hexachloro platinum acid as the metal source. The resulting materials are characterized by nitrogen adsorption at 77 K, X-ray diffraction and X-ray photoelectron spectroscopy. The results are discussed regarding pore system development, metal particle size, and surface composition.     

金属3D打印复合毛细芯孔径配比对环路热管特性影响

环路热管（loop heat pipe,简称LHP）是一种利用工质相变进行热量传递的强化传热元件,广泛应用于余热回收、太阳能集热器以及电子器件散热等。而LHP蒸发器内毛细芯对其工作性能具有决定作用,3D打印毛细芯可克服烧结毛细芯孔径分布不均且随机性高的局限性。本文根据LHP蒸发器内气液两相的流动特点,将3D打印毛细芯的上层定义为吸液层,下层定义为蒸发层,并对其上下层孔径的配比进行研究后发现：在本文所研究的工况下,当蒸发层孔径一定时,增大吸液层孔径会使蒸发区内过热度降低;减小吸液层孔径会使蒸发区内出现干烧现象,二者皆会限制LHP的传热性能。此外,当吸液层孔径一定时,增大蒸发层孔径会造成热泄漏,减小蒸发层孔径可强化LHP在高负荷下的传热性能。蒸发层孔径为100μm、吸液层孔径为200μm的复合毛细芯具有更高的传热系数和热负荷。     

Study on the effect of micro geometric structure on heat conduction in porous media subjected to pulse laser

Based on fractal theory, different two-dimensional fractal structures were constructed to simulate the practical porous media. Effective thermal conductivity for porous media was calculated by means of the finite volume method. Theoretical analysis of thermal response in the porous media under various heating conditions was performed with a multi-layer hyperbolic heat conduction model with volumetric heat generation. The results obtained in this paper indicate that pore size and micro distribution have a far-reaching impact on the heat conduction in porous media. If we assumed that both the thermal conductivity and the heat capacity of the solid phase is larger than those of liquid phase, decreasing the pore size and porosity is helpful to enhance the heat transfer in porous media and the peak of temperature increases with pore size and porosity. With the same pore size and porosity, the effect of the pore micro-geometric distribution on heat conduction in porous media is obvious. The method presented in this paper may suggest a valuable approach to theoretically evaluate the effect of pore micro-geometric structure on heat conduction in porous media.     

Synthesis of centimeter-scale monolithic SiC nanofoams and pore size effect on mechanical properties

By pressure infiltrating pre-ceramic polymer polycarbosilane (PCS) into thermally and mechanically stable silica nanofoam, followed by PCS pyrolysis and silica template removal, synthesis of large-scale monolithic SiC nanofoams has been accomplished. Tailoring of the porosity and cell size of the SiC nanofoam has been realized by dissociating the porosity and pore size of the silica nanofoam. Because of the surface hardening and increased surface volume ratio of deformable nanopores, with the same porosity, the decrease of nanopore size has led to an increase in the quasi-static and dynamic indentation resistance for SiC nanofoams.     

Treatment of dye and cadmium solutions using asymmetric kaolin porous tubular support

Kaolin porous support ceramic was prepared from kaolin. The characterization of the porous properties and structure of the support synthesis was carried out by scanning electron microscopy (SEM), absorption rate, shrinkage rate and Hg-porosimetry methods. The pore size distribution showed a unimodal pore size distribution with an average pore size of about 0.9 µm. The reliability of support was measured by filtration tests and removal of heavy metals.Filtration studies using porous tubular supports were performed for solutions containing methylene blue and Evans blue. The study of the liquid filtration and flow through these supports showed that the methylene blue rejection rate was 99% while the Evans blue rate reached 90% for a 90 minute filtration time under a pressure of 2 bar. We beforehand tested the flow rate for each support with distilled water and the results show that the support of kaolin gave a flux for distilled water of 31.0 L/h at the pressure of 2 bar. At a pressure of 3.5 bar an increase in the distilled water flux through the support was observed.The rejection rate of cadmium ions was more significant. A rejection rate of 99.99% using a 10^− 4 mol/L solution of this heavy metal for two-hour treatment time was obtained.     

Hydrogen adsorption on metal-organic framework (MOF-5) synthesized by DMF approach

Metal-organic frameworks (MOFs), especially MOF-5, are believed to be promising new porous materials for hydrogen adsorption. A comparative study of material synthesis, characterization and hydrogen adsorption was performed to examine the effects of different synthesis conditions on crystal structure, pore textural property and hydrogen adsorption performance of MOF-5 materials. Three MOF-5 samples synthesized with dimethyl formamide (DFM) as solvent and slightly different procedures have shown similar phase structure and chemical composition, diverse crystal structures, varying pore textural properties and different hydrogen adsorption performance. It was established from the experimental results that higher order of crystallinity in the MOF-5 materials generates better adsorbents with larger crystal size, higher specific surface area, uniform pore size distribution (PSD), larger hydrogen adsorption capacity and faster hydrogen diffusion rate in MOF-5 adsorbents. The best MOF-5 sample synthesized in this work (MOF-5(γ)) has a Langmuir specific surface area of 1157 m²/g; it can adsorb 0.5 wt.% of hydrogen at 77 K and 800 mmHg; and results in hydrogen diffusivity inside MOF-5 crystal of 2.3 × 10⁻⁹ cm²/s. The density functional theory reasonably predicts the presence of mesopores and macropores in all three MOF-5 samples synthesized in this work.     

金属有机框架孔径调控进展

金属有机框架(MOFs)以其可灵活调节的孔道结构、大孔隙率和大比表面积等特点受到广泛关注。设计并构建能够实现目标功能的、具有合适孔径分布的MOFs材料关系到MOFs材料在分离、催化以及质子传导等领域中的应用。综述了MOFs材料孔径的主要调控方法,包括原位合成调控、后合成修饰调控、穿插调控以及辅助合成调控,总结了四种调控方法的特点和不足,并对未来MOFs孔径调控的发展方向进行了展望。     

Synthesis of flexible heat exchange networks and mass exchange networks

A simple strategy is proposed for the synthesis of flexible heat exchange networks (HEN's) or mass exchange networks (MEN's) that involves expected disturbance range in the flow rates and temperatures (for HEN's) or compositions (for MEN's) of the inlet process streams. The network synthesis problem is decomposed into three main iterative steps: (1) synthesizing a network candidate with a minimum total annual cost (TAC) according to a finite number of operating conditions; (2) performing flexibility test without considering the size restrictions to verify whether the current network candidate is operable for a large number of uncertain parameters that are generated randomly within the expected operating ranges; appending test point(s) that mostly violates the constraints of the candidate network when the network configuration is proved infeasible through simulations, then returning to step (1) again to synthesize a new candidate structure; (3) considering the size restraints that have been ignored previously, executing flexibility test to the network qualified in step (2), and increasing the size of exchange units if necessary. A few iterations of these design steps may be required to secure the desirable results. Also in this paper are several numerical examples supplied to demonstrate the applicability of the proposed strategy for the synthesis of flexible heat exchange networks or mass exchange networks.     

氨合成的和速率分析

对氨合成塔内的氨合成反应过程,从(火用)损失、化学反应速率和热量传递速率等方面进行了综合计算与分析。结果表明(火用)损失和化学反应及传热速率成正相关。     

The Synergy Effect of Process Coupling for Dimethyl Ether Synthesis in Slurry Reactors

The synergy effect of process coupling of reaction‐reaction and reaction‐heat transfer for dimethyl ether synthesis has been studied. The theoretical and experimental analyses show that the synergy of reaction‐reaction is prominent and that the synergy of reaction‐heat transfer is also feasible. Due to the synergy effect, CO‐rich synthesis gas can be used for dimethyl ether synthesis and higher once‐through conversion of CO can be obtained. Recycling and compression of the unreacted synthesis gas can be minimized considerably. Accordingly, savings will be made in energy consumption and the water gas shift reaction system, and the entire investment and production cost will decrease.