The research background of the new polyethylene rollers with the acid and alkali resistance,wear resistance and the long-life performance is introduced.
介绍了新型耐酸碱、耐磨损长寿命聚乙烯托辊的研制背景、使用面广和防酸碱腐蚀、耐磨等技术特点,并介绍筒体和轴承座的联接和密封等组成结构,并且给出了它的加工设备工艺与普通托辊的试制检测对比数据,还介绍了它的成果鉴定和应用情况。
During the test run of 2000 h,the conversion of acetal and the yield of ethyl vinyl ether maintained about 96.
研究了在固体催化剂上乙缩醛气相分解制乙烯基乙醚的反应性能。
The reaction of fluoroalkyl iodides with ethyl vinyl ether and amines in the presence of sodium dithionite was studied.
研究了在保险粉存在下,氟烷基碘(1)与乙烯基乙醚和伯胺或仲胺(2)的反应。
1,2-bis[bis(2-ethoxyethyl)phosphino] ethane(tetrofosmin) produced from the reaction of 1,2-bis(phosphino)-ethane with ethyl vinyl ether.
亚磷酸三乙酯与1,2二-溴乙烷的加成产物经L iA lH4还原得乙二膦,后者与乙烯基乙醚发生加成反应生成1,2双-[双(2乙-氧基乙基)膦基]乙烷(替曲膦),这是一种新型的心肌灌注显像剂99mT c替-曲膦的配体,产物及中间产物经IR、1H-NMR、M S得到确证。