Study on continuous process for synthesis of ethyl acetate with organo-tin as catalysts;
有机锡连续法催化合成乙酸乙酯的研究
On basis of preliminary analysis of related literatures and materials, the continuous process for synthesising aqueous polyurethane dispersions was introduced and recommended.
根据对有关文献资料的初步分析,推介使用连续法合成聚氨酯水分散体。
The continuous process of production of polymer polyol was introduced.
介绍了连续法合成聚合物多元醇的生产工艺 ,讨论了引发剂浓度、分散剂的质量分数、反应温度、加料速度和出料速度及熟化时间对聚合物多元醇产品性能的影响。
Dimensional synthesis for link path of four-bar linkages by combining continuation method with atlas method;
结合连续法与数值图谱法的四杆机构连杆轨迹的尺度综合
The DOF of the manipulator was analyzed firstly, then the restrict-ive equation was established; calculating the position forward kinematics of the manipulator with continuation method, the numerical value solutions of specific position were given, and also the corresponding three-dimensional mechanical asse.
首先分析了机构的自由度,建立了机构的数学模型,运用连续法计算了机构位置正解,给出了数值算例并绘制了对应的三维机构装配简图。
The set of equations for inverse force analysis of the spring system is derived at first and then solved using continuation method.
建立了力逆解方程组 ,用连续法求出了全部解 ,得到了系统处于静力平衡时的全部构
Study SIPM solving property in continuous method synthesize SIPE;
连续法合成SIPE的SIPM溶解性能研究
In this paper 1,2,3,6-tetrahydrophthalic anhydride (Δ-4THPA) was synthesized from mixed C_4 and maleic anhydride (MA) using batch as well as continuous method.
本文以含有丁二烯的C4混合气和顺丁烯二酸酐(MA)为原料,对采用间歇法和连续法合成了1,2,3,6-四氢苯酐(Δ4-THPA)和Δ4-THPA在P_2O_5催化下异构制备液体四氢苯酐的工艺进行了研究。
The criteria for formulating the initial system to decrease the number of paths to be tracked in finding all solutions to a polynomial system using continuation is then applied to the inverse displacement analysis of the 3 RPS orientational parallel manipulators.
首先揭示了３－ＲＰＳ控制姿态用并联机器人机构位置反解方程组解的分组特点，然后应用连续法求解多项式方程组时构造初始方程组的原则，给出了该机构位置反解的高效算法。
The characteristics of several continuous production technologies of polypropylene abroad are reviewed.
从工艺、催化剂体系、反应器、生产过程控制及环保安全性、产品的特点、投入及成本等方面 ,对国外开发的几种较具竞争力的典型的连续法聚丙烯生产技术进行了分析对比 ,指出气相法聚丙烯生产技术优于其他技术。
Pyrrolidone can be made from -buty-rolactone in liquid state and high pressure by the technique of continuous.
采用连续法由γ－丁内酯高压液相生产吡咯烷酮。
