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The invention relates to a preparation process for synthesizing polyethylene terephthalate 1, 3- terephthalate catalyst, which comprises adding titanic acid ester, germanium compounds and cobalt compound into liquid dispersed phase of organic solution, wherein the total weight concentration is 4-10%, and preparing the catalyst through mechanical stirring or ultrasonic wave mixed ligand for 10-60 minutes in 0-120 DEG C, wherein the adding content of titanic acid ester, germanium compounds and cobalt compound are respectively 200-500ppm, 50-300ppm and 100-400ppm of reaction monomer mass of terephthalic acid or dimethyl terephthalate.

本发明涉及一种合成聚对苯二甲酸1，3-丙二醇酯催化剂的制备方法，将钛酸酯、锗化合物和钴化合物加入到有机溶剂的液体分散相中，总重量浓度为4～10％，在0-120℃通过机械搅拌或超声波混配10-60min制得；钛酸酯、锗化合物和钴化合物加入量分别是对苯二甲酸或对苯二甲酸二甲酯反应单体质量的200-500ppm、50-300ppm、100-400ppm；用此催化剂制备PTT产品，酯化和缩聚反应时间相对于单独使用钛酸四丁酯缩短了30-60min，产品特性粘数0.70-1.05dL/g，色相b值在2-6之间，切片可用于加工新型合成纤维及工程塑料产品。

The invention relates to polyimide molding powder with low melt viscosity and a preparation method, which uses 3,4'- diamino diphenyl ether, 3,3',4,4'-diphenyl ketone dicarboxylic anhydride, 3,3',4,4'-biphenyltetracarboxylic dianhydride, 3,3',4,4'- triphenyl diether dicarboxylic anhydride, 3,3',4,4'- diphenyl ether dicarboxylic anhydride and other monomers to polymerize at 100 to 140 DEG C, to get molding powder with a melt viscosity in the range of 1000Pa.s to 5000Pa.s.

本发明属于一种低熔体粘度聚酰亚胺模塑粉及制备方法，是采用3，4′-二氨基二苯醚同3，3′，4，4′-二苯酮四酸二酐、3，3′，4，4′-联苯四酸二酐、3，3′，4，4′-三苯二醚四酸二酐、3，3′，4，4′-二苯醚四酸二酐等单体在100～140℃聚合，获得熔体粘度在1000Pa.s～5000Pa.s范围内的模塑粉。

The cooling unit asus triton 70 have the overall dimensions 90 X 78 X 125 mm and weigh 350 deg.

冷却股华硕的triton 70有整体尺寸90 × 78 x 125毫米和权衡350 °。

Functions Return Course Heading, Directi - Functions Return Course Heading 0 - 359 deg., And Exact Direction Unrounded, Map Direction N, S, E, W, NE, SE, SW, NW, and Distance in Twips Between Two Points in a Picture Box.

这个项目提供的函数可以返回 0 - 359度的航向，精确的方向，地图方向 N， S， E， W， NE， SE， SW， NW，以及图片框中两个点之间的距离。

The preparation process of wool fat alkaline earth metal soap includes the saponification between wool fat and alkali of alkaline earth metal at 0.1-0.5 MPa and 70-170 deg.c in the presence of water or water and organic solvent.

一种羊毛脂碱土金属皂的制备方法，包括：在0.1～0.5MPa的压力和70～170℃的温度下，在水或水与有机溶剂的存在下，将羊毛脂与碱土金属的碱进行皂化反应。

Also described are novel functionalized polypropylenes having a yellowness index color of at least 77 and a Brookfield Thermosel viscosity of greater than 7000 cP at 190 DEG C.

还描述了一种新的官能化聚丙烯，它具有至少为77的泛黄指数色，和在190℃时大于7000cP的布鲁克菲尔德热粘度。

Most frequently appears on bottle labels for Zinfandel red wine made from grapes picked at 35 deg.

最常出现在瓶子的标签太红葡萄酒从葡萄采摘35 °。

In a region in which the temperature of the sensor element is below 300 DEG C, an adsorbable species becomes adsorbed.

在传感器元件的温度低于300℃的区域中，可吸附物质被吸附。

In a region in which the exhaust pipe temperature is above 80 DEG C, the adsorbable species becomes adsorbed remarkably.

在排气管温度高于80℃的区域中，可吸附物质被显著吸附。

The invention relates to a method for preparing arylamine compounds by the catalytic hydrogenation of arene nitro compounds in a H2O-CO2 system, wherein H2O-CO2 is taken as reaction medium, and the arylamine compounds are prepared by the selective hydrogenation of the arene nitro compounds at a low temperature(between 25 and 100 DEG C), and the catalytic process is controllable, highly efficient and green.

本发明涉及H 2 O-CO 2 体系中芳烃硝基化合物催化加氢制备芳胺类化合物的方法。以H 2 O-CO 2 为反应介质，由芳烃硝基化合物低温(25-100℃)选择性加氢制备芳胺类化合物的可控、高效、绿色催化过程。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。