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| 1 | Cleaner Production of Wheat Straw Pulp HUANG显示文摘A pulping method using NH4OH with less amount of KOH as cooking liquor on wheat straw was developed. KOH could reduce consumption of NH3 and cooking time for its strong alkalinity. The effects of various pulping conditions such as composition of cooking liquor, liquid-to-solid ratio, maximum temperature, cooking time to the maximum temperature and cooking time at the maximum temperature were studied. Experimental results indicated that the rate of delignification was 85.12% and the pulp yield was 49.65% under suitable pulping conditions. It looks promising to use black liquor containing nitrogen, phosphorus, potassium and organic substance as fertilizer resources for agricultural production. A new pattern of ecological cycling may be set up between paper industry and farming. | 黄国林 陈中胜 张成芳Inst. Chem. Technol. East China University of Science and Technology | 2002 | 过程工程学报2002，2，6： | 5 |
| 2 | A Study on Molybdenite Electronic Structure显示文摘AStudyonMolybdeniteElectronicStructureLONGXiang-yunandWANGFeng-zhen(Dept.ofChem.,CentralSouthUniversityofTechnology,Changshah... | LONG Xiang-yun and WANG Feng-zhen (Dept .of Chem.,Central South University of Technology, Changshaha 410083) | 1995 | Chemical Research in Chinese Universities1995，11，4： | 3 |
| 3 | Studies on New Additions to 5-Methoxy-2 (5H)-Furanone: 1, 4-Addition of Grignard Reagents, and 1,3-Dipolar Cycloaddition of Silyl Nitronates显示文摘Addition reaction of Grignard’s reagent to 5-methoxy-2(5H)-furanone 1 was accomplished, which provided a new possible route for synthesizing β-alkyl-γ-alkyloxy-γ-butyrolactone. A novel concise method of preparing fused heterocyclic compounds was offered by 1,3-dipolar cycloaddition reaction of silyl nitronates to 1. | Zhao Yang WANG2, Jia Ling CUI3, Bao Shan DU1*, Qing Hua CHEN1 1Department of Chemistry, Beijing Normal University, Beijing 100875 2Present address: Dept. of Chem., South China Nor. Univ, Guangzhou 510631 3Present address: School of Pharm., Beijing Univ, | 2001 | Chinese Chemical Letters2001，12，4： | 3 |
| 4 | LaSrNiO_(4-λ) with K_2NiF_4 Strcture──A Highly Active Catalyst for Direct Decomposition of Nitrogen Monoxide显示文摘A series of perovskite-like mixed oxides La2-xSrxMO4±λ(M =Cu, Co,Ni; x=0,1 ) was prepared and characterized using X-ray powder diffraction. The catalytic properties of these catalysts in NO decompositiori were tested. The results showed that LaSrNiO4-λ with K2NiF4 structure is very active and stable for the decomposition of NO. | ZHAO Zhen YANG Xiang-guang and WU Yue(Changchun Institute of Appl. Chem., Chin. Academy of Sciences, Changchun, 130022) | 1996 | Chemical Research in Chinese Universities1996，12，1： | 3 |
| 5 | MICHAEL ADDITION OF NITROALKANE TO α,β-UNSATURATED CARBONYL COMPOUNDS ON KF / Al_2O_3/ PEG4000显示文摘Michael addition of nitroalkanes to α,β-unsaturated carbonyl compounds occurs in the presence of KF/AI2O3/PEG4000 without solvent.Yields are fair to good and work-ups are easy. | Lian An L1AO’ Qi Zhen GUO Bang Ji LI Xiao Yia WU Dept. of Chem., Xiamen Univ, Fujian 361005 | 1992 | Chinese Chemical Letters1992，3，3： | 2 |
| 6 | Preparation and Characterization of Some Ferrites from CuO-ZnO-Fe_2O_3 Mixtures显示文摘The ferrites of Cuo-ZnO-Fe2o3 solid solution series near the molar ratio of ZnxCu1-x were prepared by direct heating of their coprecipitated hydroxides using NH4OH as precipitating agent where x=0.0, 0.2, 0.5, 0.8 and 1.0. Additional amounts of Cu and Zn sulphates were added to compensate the loss during the coprecipitation of the hydroxides. The ferritized samples were characterized by chemical analysis, XRD. DTA, TGA and SEM. XRD of both Zn0.2Cu0.8Fe2O4 and Zn0.5Cu0.5 Fe2O4 that indicates the formation of a heterogeneous ferrite material of ZnFe2O4 and CuFe2O4 mixed with variable amounts of α-Fe2O3. Zn and Cu ferrites were observed only in Zn0.8Cu0.2Fe2O4.From TGA-time relation, the activation energy of the different transformation phases were calculated. It is found that, the activation energy of ZnFe2O4 is slightly equal to 3/2 of that for CuFe2O4. Dielectric measurements show that the electrical behaviour depends on the ordering and disordering of the phases. | A.A.Hanna H.I Saleh and M.Sh.Khalil(Inorg. Chem. Dept., National Research Centre, Dokki, Cairo, Egypt) | 1998 | Journal of Materials Science & Technology1998，14，3： | 2 |
| 7 | The Use of Fractal for Prediction of Burning Rate of Composite Solid Propellants显示文摘By using the fractal geometry it is possible to calculate the actual AP (Ammonium Perchlorate) surface area and oxidizer-binder interface fractal dimension in the prediction of burning rate of composite solid propellants. In this investigation, the fractal dimension was determined by a procedure known as the 'Box Counting Method'. Using this dimension, surface area relations were developed for the rough particles. This method was implemented in the PEM (Petite Ensemble Model) burning rate model. The comparison of burning rates for a typical propellant by the PEM and fractal model shows that the burning rates obtained by using the fractal geometry are slightly less than those obtained by the PEM model. | Manouchehr Nikazar,Mohammad B. Bagherpour,Bahram Dabir (Chem. Eng. Dept., Amirkabir University of Technology (Tehran Polytechnic), No.424, Hafez Ave., Tehran, Iran.) | 2000 | Journal of Thermal Science2000，9，4： | 2 |
| 8 | 一元线性回归法用于测定微量铝显示文摘用一元线性回归分析法处理实验数据.研究了铝—铬天青S—氯化十六烷基吡啶(Al(Ⅲ)—CAS—CPC),亮绿色体系的反应特性及适宣条件.体系的最大吸收波长为632.5nm.表观摩尔吸光系数ε=7.76×104Lmol-1cm-1.其组成摩尔比为AlCAS=13.服从比耳定律范围0~9μg/50ml.检测限为3.45ng/ml.应用于茶叶、饮料、饮水中微量铝的测定,结果满意. | Zhang yue(Dept. of Chem. Changsha Univ.of Electr.Power Changsha 410077) | 1997 | 长沙水电师院学报(自然科学版)1997，12，3： | 1 |
| 9 | Application of neutron activation analysis in geochemistry and cosmochemistry显示文摘ApplicationofneutronactivationanalysisingeochemistryandcosmochemistryG.M.Kolesov(VernadskyInstituteofGeochem&AnalChem.,Russia... | G.M. Kolesov(Vernadsky Institute of Geochem & Anal Chem.,Russian Academy of Sciences),Kosygin) st.19.117975、Moscow,V-334,Russian | 1994 | Journal of Environmental Sciences1994，6，3： | 1 |
| 10 | Studies on the Preparation and Catalyticproperties of Fe-C-Mn Ultrafine particle Catalyst in F-T synthesis显示文摘Based on the Fe/C ultrafine particle obtained by means of laser pyrolysis method, a series of Fe-C-Mn ultrafine particle catalysts for F-T synthesis were prepared by adding certain amounts of Mn organic compounds to the Fe/C UFP. XRD and TEM tests for the obtained catalysts showed that the active phases, α-Fe, Fe3Cand (Fe,Mn)O. were directly obtained. and that the particle size was in the range of 2-4 nm. The catalysts so obtained have stable structure, long life, high activity and selectivity for light olefins, especially for propylene. Testing of the crystal structure in the process of the reaction demonstrated the carbonide mechanism of FT synthesis and the presence of α-Fe, FexCy and (Fe, Mn)O, thus supporting the belief that these are the active phases. | ZHANG Jing-chang LU jiang-yin CAO Wei-liang and YANG Lin-shong(Dept. of Appl. Chem., Beijing Univerity of Chemical Technology, Beijing, 100029) | 1996 | Chemical Research in Chinese Universities1996，12，1： | 1 |
| 11 | A NEW PATHWAY OF GAS-TO-LIQUID CONVERSION USING CATALYTIC DIELECTRIC-BARRIER DISCHARGE显示文摘A new pathway of gas-to-liquid conversion, directly from methane and carbon dioxide, was established recently using a catalytic dielectric-barrier discharge (DBD) with zeolite. Direct fuel synthesis becomes possible at reaction conditions close to ambient ones. The products from such direct fuel synthesis include alkanes, alkenes, oxygenates and Syngas (CO + H2). The product distribution is similar to that from Fischer-Tropsch(F-T) synthesis but it does not follow the Flory-Schulz kinetics. The presence of zealots within discharge plasmas improves the selectivity of lighter hydrocarbons. | Liu Changjun, Li Yang, Zhang Yueping, Jiang Tao, Xia Qing and Xu Genhui Eliasson Baldur and Xue Bingzhang (State Key Lab. of Cl Chem. Tech. and Dept. of Chemistry Tianjin University Tianjin 300072, China) (Energy and Global Change, ABB Corporate | 2000 | 化工学报2000，51，S1： | 1 |
| 12 | Several difficult problems in lubrication显示文摘Whether in industry or in our human life, we will encounter many lubrication problems. A goodlubricant not only should have good performance, but also should meet the needs of the specific condi-tions. Here we give some examples about the difficult problems in lubrication and their solutions. Theseexamples are: (i) hydrolysis and emulsion of ZDTP; (ii) corrosion of chlorowax; (iii) coexistence of greencompressor oil and cryogen (R-134A); (iv) lubrication of cystoscope and catheter. On the same time,some achievements in lubrication field provided by Lubrication Chemistry Laboratory of Shanghai Uni-versity will be introduced in this paper. | TAO Dehua ZHANG Jianhua Lubrication Chem. Lab. of Shanghai University, Shanghai 200072, China | 2001 | Science China Mathematics2001，44，S1： | 1 |
| 13 | A NOVEL POLYMER ENZYME LINKED IMMUNOBLOTTING ASSAY METHOD AND ITS APPLICATIONS(Ⅱ)显示文摘ANOVELPOLYMERENZYMELINKEDIMMUNOBLOTTINGASSAYMETHODANDITSAPPLICATIONS(Ⅱ)￥FengHuaLIU;FengLIU;YanZhuoDENG;YunEZENG;RenXiZHUO(Dep... | Feng Hua LIU Feng LIU Yan Zhuo DENG Yun E ZENG Ren Xi ZHUO (Dept. of Chem., Dept. of Anal. and Testing Scl.,Wuhan Univ., Wuhan,430072) | 1994 | Chinese Chemical Letters1994，5，5： | 1 |
| 14 | SOLID MATRICES FOR EXPANDED BED ADSORPTION OF PROTEINS显示文摘Expanded bed adsorption (EBA) has been introduced as a primary recovery step for protein purification from a whole fermentation broth or unclarified cell homogenates. It can also be integrated with a fermentation or cell disruption process. Solid matrix is the principal pillar supporting the successful application of the EBA technology. This article summarizes the solid matrices employed in and developed for the EBA process to date. Further development of solid matrices for the expanded bed technique in the recovery of various biological substances from different sources has been addressed. | Sun Y. and Gan Y.-R. (Department of Biochemical Engineering, School of Chem. Engineering, Tianjin University, Tianjin 300072) | 2000 | 化工学报2000，51，S1： | 1 |
| 15 | LOCAL STRUCTURE OF COPPER IN Cu-ZSM-5 CATALYST FOR NITRIC OXIDE DECOMPOSITION显示文摘LOCALSTRUCTUREOFCOPPERINCu-ZSM-5CATALYSTFORNITRICOXIDEDECOMPOSITION￥ShuNongFANG;YiLuFU;PeiYanLIN(Dept.ofChem.Phys.,Univ.ofSci... | Shu Nong FANG Yi Lu FU Pei Yan LIN (Dept. of Chem. Phys., Univ. of Sci. k Tech. of China, Hefei 830026) | 1994 | Chinese Chemical Letters1994，5，5： | 1 |
| 16 | Theoretical Studies on the Mechanism of Mannich Reaction Involving Iminium Salt as Potential Mannich Reagent(1)——Use Acetaldehyde as Pseudo-acid Component显示文摘TheoreticalStudiesontheMechanismofMannichReactionInvolvingIminiumSaltasPotentialMannichReagent(1)——UseAcetaldehydeasPseudo┐ac... | XIAO He ming *, LING Yue, ZHAI Yu feng and LI Yu min (Dept. of Chem., Nanjing Univ. of Science and Technology, Nanjing 210094) | 1997 | Chemical Research in Chinese Universities1997，13，4： | 1 |
| 17 | DESORPTION OF VOCs FROM POLYMERIC ADSORBENTS UNDER MICROWAVE FIELD显示文摘Desorption of volatile organic compounds (VOCs) from polymeric adsorbents by microwave was investigated experimentally. Two kinds of organic compounds, benzene and toluene, were separately used as adsorbates in this work. Results showed that the application of microwave to regenerate the polymeric adsorbents not only can get higher regeneration efficiency in comparison with the use of heat regeneration, but also make the temperatures of the fixed beds much lower than that when using the heat regeneration. The weaker the polarity of a polymeric adsorbent, the easier its regeneration was. | LI Xiang LI Zhong WANG Huan XI Hongxia College of Chem. Eng., South China University of Technology Guangzhou, 510640 P. R.China | 2001 | Chinese Journal of Reactive Polymers2001，10，2： | 1 |
| 18 | Phosphogypsum Utilization Part Ⅱ: Preparation of Ammonium Sulphate显示文摘The aim of this work was to describe the conversion of raw phosphogypsum, issued from the manufacture of H3PO4 by dissolving the phosphate rock in H2SO4, into (NH4)2SO4 and CaCO3.The thermal analysis technique was used to estimate the yield of conversion. (NH4)2CO3 or (NH4)2CO3 with excess NH4OH or (NH4)2CO3 with NH3 gas were used in the preparation of (NH4)2SO4 from phosphogypsum. The obtained samples were separated and tested by chemical and thermogravimetric analyses, infrared spectrum and X-ray diffraction and the optimum conditions of conversion were determined. The results indicated that the yield of conversion equals to 83.37 and 86.70% in case of using (NH4)2CO3 or (NH4)2CO3 with excess ammoniarespectively, while by using NH3 gas the percentage of conversion increased to 94.2% at a flow rate of 6 ml/min. Chemical analysis, infrared spectrum and X-ray diffraction patterns of the yield, (NH4)2SO4 were nearly similar to the standard sample. | A.A.Hanna and S.M.Ahmed (Inorg. Chem. Dept., National Research Centre, Dokki, Cairo, Egypt) | 1999 | Journal of Materials Science & Technology1999，15，6： | 1 |
| 19 | Cluster-Slabbing EHMO Study of Active-Site Model of Fe-Catalyst for Ammonia Synthesis显示文摘The 4-Fe/α-Fe(111) or (211)-surface cluster model of active sites of iron catalysts for ammonia synthesis and the two probable multinuclear coordination modes of dinitro-gen suggested previously were examined by means of improved cluster-slabbing EHMO calculations. The results are in favor of the suggested model of the active site and the corresponding modes of multinuclear coordination-activation of dinitrogen, and may be used rationally to explain the difference in catalytic activity of ammonia synthesis over the three crystal surfaces, (111), (211) and (100), of α-Fe. | ZHANG Hong-bin and ZHOU Tai-jjn (Dept. of Chem. & Inst. of Phys. Chem. , Xiamen University, Xiamen, 361005) | 1992 | Chemical Research in Chinese Universities1992，8，2： | 1 |
| 20 | MICHAEL REACTION OF CHLOROESTERS IN A TWO-PHASE SOLID-LIQUID SYSTEM显示文摘The Michael addition of α-chloroesters to α,β-unsaturated systems was catalyzed bytraalkylammonium salt in a two-phase solid-liquid system, and some polysubstitnted evclopropanes were facilely synthesized. | Chao Guo YAN, Qiang Zhi KONG, Wen Xing LU and Ji Tao WU Dept. of Chem., Yangzhou Teachers College Yangzhou, Jiangsu, 225002 | 1991 | Chinese Chemical Letters1991，2，10： | 1 |
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