The olefin content in FCC gasoline can be reduced by etherification of light FCC gasoline, meeting the requirements of environmental regulations.
采用催化裂化轻汽油醚化工艺可减少催化裂化汽油的烯烃含量，满足环保法规对汽油质量的要求。
During the brewing process of catalyzed wine, a series of complicated physical and chemical reactions such as oxidation, reduction, etherification and association occur.
沉缸酒在发酵过程中，发生了一系列复杂的物理化学变化，如氧化、还原、酯化、缔合等，同时伴随着色泽、成分的变化及分子缔合作用。
This paper first reports the synthesis and applications in hydrolysis and etherification of a new polymer supported quaternary ammonium resin, which is an effective triphase catalyst.
本文首次报道一种新的高分子固载季铵树脂的合成及其在水解、成醚反应中的应用，此树脂是一种有效的三相催化剂。
Finally, the developing trend of etherification catalysts is emphasized.
最后指出了醚化催化剂的发展趋势。
Allylsucrose was prepared by allyl etherification from sucrose which is biomass resource.
本文以生物质资源蔗糖为原料，通过烯丙基醚化反应制备了烯丙基蔗糖。
Effects of methanol on the properties and catalytic activity of resin etherification catalysts were studied.
探讨了甲醇对酸性树脂催化剂物化性能和催化性能的影响。
Moreover, their activity and selectivity in etherification reaction is simultaneously estimated and compared.
此外，对这几种催化剂的醚化活性、选择性进行了评价。
The etherification activity of the deactivated E-01 catalyst can be completely recovered by coke-burning regeneration.
通过烧焦再生，失活e -01催化剂的醚化活性可以完全恢复。
It is based on phenol benzoate which is made from benzoyl chloride and phenol through rearrangement and etherification.
它主要由苯甲酰氯和苯酚制备苯甲酸苯酯，然后重排、醚化所得。
As natural cellulose linter pulp raw materials, HEC is the name of a series of products after alkalization and etherification.
纤维素醚是以天然纤维素(棉桨粕或木桨粕)为基本原料，经过碱化、醚化反应而生成的一系列产品的总称。
By adopting two stage etherification technology, the total conversion of tertiary carbonic olefins in light gasoline is up to 75%.
采用二段醚化技术，轻汽油中叔碳烯烃醚化总转化率可达到75 %以上。
Water soluble hydroxyethyl chitin which has high etherification degree can be obtained by the gas-solid reaction with ethylene oxide.
羟乙基甲壳素是甲壳素的一种水溶性醚化产物，采用气固相制备方法可以得到醚化度高、水溶性好的羟乙基甲壳素。
Water soluble hydroxyethyl chitin which has high etherification degree can be received by the gas-solid reaction with ethylene oxide.
羟乙基甲壳素是甲壳素的一种水溶性醚化产物，采用气固相制备方法可以得到水溶性好、醚化度高的羟乙基甲壳素。
Adapalene was synthesized from 4-bromophenol by alkylation, etherification, condensation and hydrolysis with an overall yield of 51%.
对溴苯酚经烷基化、硫酸二甲酯醚化、缩合及水解反应制得阿达帕林，总收率51%。
Introduced the latest progress of other high quality gasoline production technology such as alkylation, isomerization, etherification.
同时介绍了其它优质汽油生产技术的烷基化、异构化、醚化工艺的最新进展。
Reaction properties of RZE-3 zeolite catalyst for etherification of FCC light gasoline were studied in comparison with resin catalysts.
以催化裂化轻汽油为原料对开发的RZE 3沸石型醚化催化剂的反应性能进行了研究，并与树脂型催化剂进行对比。
RESULTS: Synthetic route was shorten by one step, the yield of etherification increased by 20% or more as compared with the yield in literature.
结果：使合成路线缩短一步，醚化收率比文献值提高20％以上。
The structure and properties of the surgical pledget produced by a low degree of etherification and crosslinking process were studied in this paper.
研究了经低度醚化和交联处理的医用纱布纤维的结构和性能。
The etherification of isoamylenes and methanol to form tert all methyl ether (TAME) by benz-sulfonic acid cation exchange resin as catalyst, was studied.
研究了苯磺酸型树脂催化的异戊烯和甲醇的醚化，考查了温度、醇烯比和空速对反应的影响。
Cefixime open side chain acid was prepared by oximation, etherification, chlorination, ester decomposition using t-butyl acetoacetate as starting material.
以乙酰乙酸叔丁酯为原料，经过肟化、醚化、氯代酯解反应合成了头孢克肟开环侧链酸。
The change of related groups in FTIR spectrum and the change of surface on the SEM pictures indicated that the etherification and amination reactions took place.
红外光谱图中相应基团的变化和扫描电镜图中显示的表面形态变化说明可能发生了醚化和胺化的改性反应。
Issues related with processing scheme and equipment selection of the etherification of FCC gasoline light fraction were discussed based on engineering design standpoint.
从工程设计方面重点探讨催化裂化汽油轻馏分醚化工艺中流程和设备选择方面的问题。
The cationic sawdust cellulose was prepared with the sawdust cellulose as raw material and 3-chlorine-2-hydroxypropyl chloride (CTA) as an etherification modifying agent.
以木屑纤维素为原料，以3 -氯- 2 -羟丙基三甲基氯化铵(CTA)为醚化改性剂，制备了阳离子木屑纤维素。
Methods The substance was synthesized from P-hydroxybenzoic acid through three steps, those are etherification, preparation of acyl halide and amidation of the raw material.
方法以对羟基苯甲酸为原料，经三步合成，即原料的醚化、酰氯制备和酰胺化。
The etherification process for FCC naphtha is an effective means to im - prove the quality of the gasoline so as to meet the requirements of both domestic and foreign markets.
催化裂化汽油醚化改质工艺是改善汽油品质，适应国内外市场需要的有效手段。
Upgrading FCC gasoline through etherification process is a efficient method to upgrade the octane number of gasoline so as to meet the demands of domestic and over - seas markets.
催化裂化汽油醚化改质工艺是提高汽油辛烷值以适应国内外市场需要的有效方法。
It was shown that there was by product acetone in the products of propene hydration etherification, while there existed no acetone in the products of isopropanol dehydration reaction.
丙烯水合醚化反应中有副产物丙酮生成，而异丙醇单独进料时产物中没有发现丙酮的生成。
Modifying potato starch with etherification, adding water, PVA, glycerol and other assisting agent to the modificated starch to prepare all-starch thermoplastic thin film was studied.
对马铃薯淀粉进行醚化改性，在改性后的淀粉中加入水、PVA、甘油等助剂，制备全淀粉热塑性塑料薄膜。
Modifying potato starch with etherification, adding water, PVA, glycerol and other assisting agent to the modificated starch to prepare all-starch thermoplastic thin film was studied.
对马铃薯淀粉进行醚化改性，在改性后的淀粉中加入水、PVA、甘油等助剂，制备全淀粉热塑性塑料薄膜。
应用推荐