醚

Propene hydration etherification reaction catalyzed by β zeolite was studied by using in situ FT IR technique, and the effects of surface acidity on the reaction were discussed.

采用原位红外光谱技术，对β沸石催化剂上的丙烯水合醚化反应过程进行了研究，并结合催化剂的表面酸性进行了讨论。

Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.

本文以马铃薯淀粉为原料，环氧丙烷为醚化剂，氢氧化钠为催化剂对低取代度羟丙基淀粉的制备工艺进行了研究。

Structure and morphology of the starch and CMS was characterized by means of IR and SEM, and investigated the effect of synthesis factors on solution transparency of the CMS, having been realized that the solution transparency of CMS was influenced by DS and evenness of etherization.

用红外光谱和扫描电镜对原淀粉、CMS的结构及形貌进行表征，并探讨了合成因素对其溶液透明性的影响，得知CMS糊液透明度受取代度及醚化均匀度双重因素影响。

It was found that the catalytic activities of HZSM-5 sample (ZS540.2) steaming at 540℃ latm for 2hr to condensation reaction and etherization of propylene oxide were enhanced.

发现了适度水热处理HZSM-5应用于缩醛和环氧丙烷醚化等-系列反应后得到的催化活性增强现象。

In the work, three P-Mo-V heteropoly acids with different Vanadium number have been synthesized by acidification- etherization. Their component and structure have been confirmed by ICP-AES and TGA. They have been characterized by FT IR, XRD and UV. FT IR demonstrates their Keggin structure.

本文采用酸化—醚化法合成了三种不同钒原子数的P-Mo-V三元杂多酸，并用ICP-AES和TGA确定其化学组成和结构，用FT IR、XRD和UV等手段对其结构和性质进行了表征。

Project Content: Introducing whole set of production line abroad, the main machine equipment of etherization caldron has the advantages of big capacity, good airtight capability, stable products quality and high impregnant-availability.

采用国外先进技术和整套生产装置，主反应装置-醚化釜具有容积大、密封性好、提高生产效益、稳定产品质量、溶剂利用率高等优点。

The combined scheme of selective hydrogenation and etherization of FCC's light gasoline and hydrogenation desulfurization of heavy gasoline can make gasoline quality meet EURO IV Standard, indicating that this combined scheme is a feasible scheme selection for gasoline quality updating and upgrading.

FCC汽油实施加氢、醚化及重汽油加氢脱硫组合方案后，可使该汽油质量满足欧IV标准，说明该组合方案是实现汽油产品升级换代的一种可行的方案选择。

Amphoteric tapioca starch with carboxyl groups was produced via crosslinking, oxidation and etherization reactions. The product was then characterized by means of SEM, XRD and colloid titration, with the preparation mechanism being also investigated.

采用交联、氧化和醚化反应制备羧酸型两性淀粉，通过扫描电子显微镜、X射线衍射、胶体滴定等方法对该淀粉进行表征，并研究了该两性淀粉的合成机理。

DS and distribution of DS were improved. The optimized technology was gotten as follows: sodium borate was 8wt%,alkalization temperature 20 alkalization time 90min.The heat-resistance of CMC was also enhanced by adding sodium silicate in alkalization, and adding sodium borate in etherization in the synthesis of CMC. ra was decreased, but the viscosity was significant increased.

综合考 虑对水溶液粘度和取代度及其分布的影响，得到优化了的工艺配方：硅酸钠的加入量浙江人学硕士学位论文为纤维素的10叭%左右，碱化温度为20℃，碱化时间为90min，采用两次加碱法工艺(Zmol%和1 。1 smol%)，醚化阶段加6wt%的四硼酸钠。

Methods Starting from 2-chloro-4-nitrophenol and 2- pyridine hydrochlorid, 3-chloro-4-(pyridin-2-ylmethoxy) aniline was obtained via etherization and reduction. The obtained aniline coupled with N-(4-chloro-3-cyano-7-ethoxyquinolin-6-yl) acetamide to give 4-[3-chloro-4-(2-pyridylmethoxy) phenylamino]-3-cyano-7-ethoxy-6-N-acetylaminoquinoline. And then it was deacetylated, followed by reacting with4- but-2-enoyl chloride to yield the target compound neratinib.

以2-氯－4-硝基苯酚和2-氯甲基吡啶为起始原料，经醚化、硝基还原得到3-氯－4-（吡啶－2-甲氧基）苯胺，3-氯－4-（吡啶－2-甲氧基）苯胺与3-氰基－6-乙酰氨基－7-乙氧基－4-氯喹啉反应得到3-氰基－6-乙酰氨基－4-［3-氯－4-（吡啶－2-甲氧基）苯氨基］－7-乙氧基喹啉，3-氰基－6-乙酰氨基－4-［3-氯－4-（吡啶－2-甲氧基）苯氨基］－7-乙氧基喹啉去乙酰保护基后，与-4-二甲氨基－2-丁烯酰氯经酰化反应得到ner-atinib。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。