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Synthesis, Characterization of Mesoporous Al-Mg Composite Oxide and Catalytic Performance for Oxyethylation of Fatty Alcohol

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Chemical Research in Chinese Universities 2005年第5期21卷 601-605页

作者： SONG Wei-ming deNG Qi-gang ZHOU de-rui zhao de-feng State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116012 P. R. China College of Chemistry and Chemical Engineering Qiqihar University Qiqihar 161006 P. R. China College of Science Harbin Institute of Technology Harbin 150001 P. R. China

A mesoporous Al-Mg composite oxide with a hexagonal structure was synthesized with aluminium nitrate and magnesium nitrate as the reagents and sodium dodecyl sulfate（SDS） as the template in the presence of ethylenediamine. The XRD, nitrogen adsorption-desorption and TEM studies indicate that the composite has a hexagonal framework structure and an average pore diameter of 2. 6 nm. The TG/DTA spectra indicate that the decomposition and the removal of the occluded surfactant of the sample take place in a range of 230-550 ℃. The mesoporous Al-Mg composite oxide exhibites a highly catalytic activity for the oxyethylation of fatty alcohols. Narrow-range distributed ethoxylates are formed in the presence of the mesoporous Al-Mg composite oxide catalyst. The distribution selectivity coefficient（Cx） is 24 when the mesoporous Al-Mg composite oxide was used as a catalyst for the oxyethylation of octanol and the average adduct degree of ethoxylates is 6. 4.

关键词： Mesoporous Al-Mg composites oxide Characterization Oxyethylation Narrow-range distribution

Preparation, Characterization and Catalytic Performance of La-SO_4^(2-)/SBA-15 in Esterification of Acetic Acid with n-Butanol

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Chemical Research in Chinese Universities 2008年第3期24卷 357-361页

作者： TIAN Zhi-ming deNG Qi-gang SUN Hui zhao de-feng State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116012 P. R. China College of Chemistry and Chemical Engineering of Qiqihar University Qiqihar 161006 P. R. China

La-SO42-/SBA-15 was synthesized with various amounts of lanthanum via incipient-wetness impregnation. Characterization was done by X-ray diffraction（XRD）, transmission electron micrographs（TEM）, nitrogen adsorption, FTIR spectroscopic analysis, thermogravimetric analysis, and the total amount of acidity of catalyst was estimated by TPD of NH3. The results indicate that lanthanum has been incorporated into SBA-15 molecular sieve. The prepared materials（La-SO42-/SBA-15） keep the highly ordered mesoporous two-dimensional hexagonal structure and do not change the mesoporous channel structure of the support SBA-15. The catalyst showed best catalytic activity in the synthesis of n-butyl acetate. The optimum conditions of the esterification by orthogonal experiments were studied： the molar ratio of n-butanol to acetic acid 1：1.2, the amount of catalyst 7.5%, reaction time 80 min. The yield of n-butyl acetate could reach 93.2% under the optimum conditions. The catalyst was recyclable, cost effective and environmental friendly.

关键词： SBA-15 molecular sieve La-SO462-/SBA-15 Catalysis n-Butyl acetate Esterification

Understanding the local structure and thermophysical behavior of Mg-La liquid alloys via machine learning potential

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 439-449页

作者： Jia zhao Taixi feng Guimin Lu National Engineering Research Center for Integrated Utilization of Salt Lake Resource East China University of Science and TechnologyShanghai 200237China Joint International Laboratory for Potassium and Lithium Strategic Resources East China University of Science and TechnologyShanghai 200237China

The local structure and thermophysical behavior of Mg-La liquid alloys were in-depth understood using deep potential molecular dynamic(DPMD) simulation driven via machine learning to promote the development of Mg-La alloys. The robustness of the trained deep potential(DP) model was thoroughly evaluated through several aspects, including root-mean-square errors(RMSEs), energy and force data, and structural information comparison results;the results indicate the carefully trained DP model is reliable. The component and temperature dependence of the local structure in the Mg-La liquid alloy was analyzed. The effect of Mg content in the system on the first coordination shell of the atomic pairs is the same as that of temperature. The pre-peak demonstrated in the structure factor indicates the presence of a medium-range ordered structure in the Mg-La liquid alloy, which is particularly pronounced in the 80at% Mg system and disappears at elevated temperatures. The density, self-diffusion coefficient, and shear viscosity for the Mg-La liquid alloy were predicted via DPMD simulation, the evolution patterns with Mg content and temperature were subsequently discussed, and a database was established accordingly. Finally, the mixing enthalpy and elemental activity of the Mg-La liquid alloy at 1200 K were reliably evaluated,which provides new guidance for related studies.

关键词： magnesium-lanthanum liquid alloys local structure macroscopic properties thermodynamic behavior deep potential mo-lecular dynamic simulation

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萘系偶氮型通用染料结构与染色性能之间关系

大连理工大学学报 2011年第1期51卷 14-19页

作者：张伟赵德丰大连理工大学精细化工国家重点实验室辽宁大连116024 萨里大学高新技术研究院

从超分子化学角度研究了双萘环和单萘环通用染料在染色过程中的构效关系.对腈纶纤维染色时,由于双萘环染料分子对相邻阴离子染席的空间屏蔽作用,其上染率下降.对涤纶纤维染色时,染料分子自身的空间结构对上染率的影响不明显.对棉纤维染... 详细信息

从超分子化学角度研究了双萘环和单萘环通用染料在染色过程中的构效关系.对腈纶纤维染色时,由于双萘环染料分子对相邻阴离子染席的空间屏蔽作用,其上染率下降.对涤纶纤维染色时,染料分子自身的空间结构对上染率的影响不明显.对棉纤维染色时,由于双萘环染料分子对纤维的直接性好、磺酸基在分子中所占的比例低,其上染率提高.对羊毛和丝绸染色时,分子平面性好的染料分子容易被纤维吸附并发生亲核加成化学反应,使上染率提高.

关键词：通用染料构效关系超分子化学染色纤维

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含萘环通用染料的合成与应用研究

大连理工大学学报 2008年第1期48卷 22-25页

作者：张伟赵德丰大连理工大学精细化工国家重点实验室辽宁大连116012

为了实现用同一支染料对不同类型的纤维进行染色的目的,通过间(对)氨基苯基-β-羟乙基砜硫酸酯与7-乙酰氨基-4-羟基-2-萘--β(N,N-二甲基氨乙基)磺酰胺的重氮化偶合反应合成了含萘环的通用染料,其结构通过质谱分析进行了表征.通过调节... 详细信息

为了实现用同一支染料对不同类型的纤维进行染色的目的,通过间(对)氨基苯基-β-羟乙基砜硫酸酯与7-乙酰氨基-4-羟基-2-萘--β(N,N-二甲基氨乙基)磺酰胺的重氮化偶合反应合成了含萘环的通用染料,其结构通过质谱分析进行了表征.通过调节染浴的pH和加入适当的染色助剂,用合成的通用染料分别对棉、羊毛、丝绸、尼龙、腈纶、涤纶等纤维进行了染色实验,并研究了染料在上述纤维上的日晒、水洗等牢度性能.实验结果表明合成的含萘环通用染料对羊毛、丝绸、尼龙、腈纶等纤维均有较好的亲和力.

关键词：通用染料萘环合成染色

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季铵盐型单偶氮染料的合成及其应用

现代化工 2007年第Z1期27卷 287-290,292页

作者：刘深马疆赵德丰大连理工大学精细化工国家重点实验室沈阳化工研究院辽宁沈阳110021

通过重氮化偶合法合成了1个新的季铵盐型单偶氮弱酸性染料,可按照传统的染色法上染羊毛纤维,上染率达到70%,但染色牢度较低。该染料水溶液具有较低的抗菌活性。并同时测试了前期工作中合成的另3个含不同长度烷烃链的阳离子型染料的染色... 详细信息

通过重氮化偶合法合成了1个新的季铵盐型单偶氮弱酸性染料,可按照传统的染色法上染羊毛纤维,上染率达到70%,但染色牢度较低。该染料水溶液具有较低的抗菌活性。并同时测试了前期工作中合成的另3个含不同长度烷烃链的阳离子型染料的染色性能和抗菌活性。

关键词：阳离子染料抗菌性季铵盐偶氮染料

含苯并三唑基团抗紫外辐射活性染料合成与应用性能研究

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大连理工大学学报 2009年第1期49卷 24-27页

作者：宫国梁张朋赵德丰大连理工大学精细化工国家重点实验室辽宁大连116012 浙江吉华集团有限公司浙江杭州311234

以2-(2-羟基-5-磺酸基苯基)-5-氨基-2H-苯并三唑基团为封闭基,对位酯或磺化对位酯为重氮组分,合成了黄、橙、红和蓝色4只M型活性染料,并用质谱对其结构进行了表征.用合成的染料对棉纤维染色,测定了染料的上染率和固色率,发现黄色染料的... 详细信息

以2-(2-羟基-5-磺酸基苯基)-5-氨基-2H-苯并三唑基团为封闭基,对位酯或磺化对位酯为重氮组分,合成了黄、橙、红和蓝色4只M型活性染料,并用质谱对其结构进行了表征.用合成的染料对棉纤维染色,测定了染料的上染率和固色率,发现黄色染料的染色性能较差.与未染色的棉纤维相比,染色后棉纤维的紫外线透过率大大降低.未染色纤维的UPF值为1.3,经过黄、橙、红和蓝色染料染色的棉纤维的UPF值分别为5.9、13.7、18.8、17.5,除黄色外都达到了很好的抗紫外线效果.通过对比也发现深色织物的抗紫外线效果比浅色的好.

关键词：苯并三唑活性染料 UPF值抗紫外线

2-羟基-4-甲氧基-3′-氨基二苯甲酮与其烷基化物合成研究

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大连理工大学学报 2006年第6期46卷 792-796页

作者：孙岩峰宫国梁盛学斌赵德丰大连理工大学精细化工国家重点实验室辽宁大连116012

以间苯二甲醚(1)与间硝基苯甲酰氯(2)为原料,经F riede l-C rafts反应得到2-羟基-4-甲氧基-3′-硝基二苯甲酮(3).以CH2C l2为溶剂,40℃,回流反应3 h,n(A lC l3)∶n(间苯二甲醚)∶n(间硝基苯甲酰氯)=3∶1.1∶1时,产品的收率为71.8%.化合... 详细信息

以间苯二甲醚(1)与间硝基苯甲酰氯(2)为原料,经F riede l-C rafts反应得到2-羟基-4-甲氧基-3′-硝基二苯甲酮(3).以CH2C l2为溶剂,40℃,回流反应3 h,n(A lC l3)∶n(间苯二甲醚)∶n(间硝基苯甲酰氯)=3∶1.1∶1时,产品的收率为71.8%.化合物3用5%Pd/C催化氢化得到对应的氨基物4,收率为90.2%.最后,用对甲基苯磺酸酯做烷基化试剂,又得到化合物4的单烷基化产物(91.4%)与双烷基化产物(88.9%).利用IR、1H NM R及M S等手段对合成的最终产物及一些关键中间体进行了结构表征,结果正确.

关键词： Friedel—Crafts反应二苯甲酮紫外吸收剂染料中间体

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过氧化叔戊醇对二苯并噻吩的氧化脱硫研究

燃料化学学报 2006年第4期34卷 506-508页

作者：周新锐李建源赵彩霞赵德丰大连理工大学精细化工国家重点实验室辽宁大连116012

The oxidation of dibenzothiophene（DBT） in decalin（as solvent） was conducted using oil-soluble oxidant tert-amyl hydroperoxide（TAHP）.The effects of oxidant amount,reaction temperature,reaction time and catalyst were investigated in *** results showed that under the condition of ratio of TAHP to sulfur 3∶1,reaction temperature 90℃,reaction time 3h,the desulfurization rate was up to 95%.The catalyst was necessary to oxidize DBT with *** acid cationic exchange resin of "D113" large aperture acrylic acid series supported MoO3 catalyst has relatively high *** the repetitious use as catalyst for 10 times,it still has good activity.

关键词：二苯并噻吩过氧化叔戊醇氧化脱硫 MoO3 非均相催化