1、

The experiment results show that H 3 zeolites has high catalysis efficiency for the alkylation of o-xylene with tert-butyl alcohol. In this reaction, the conversion of tert-butyl alcohol has been as high as 100%.

以Hβ沸石为催化剂进行了邻二甲苯&叔丁醇烷基化反应的研究,结果表明:Hβ沸石作为邻二甲苯烷基化反应的催化剂活性很高,叔丁醇可100%转化。

互联网摘选

2、

Construction of F Class Corrosion Pipeline in HF Alkylation Unit

氢氟酸烷基化装置F级腐蚀性管道施工

互联网摘选

3、

The causes of HF corrosion were analyzed. The corrosion problem was solved after the application of electroless of Ni-P plating in the alkylation unit.

分析了氢氟酸腐蚀原因,把Ni-P化学镀用在烷基化装置上,从而解决了腐蚀问题。

互联网摘选

4、

Harm of HF to human health and environment during the operation of HF alkylation units in PetroChina Dalian Petrochemical Company are summarized, the hazard and pollution source of HF are analyzed, and specific preventive measures are put forward.

综述中国石油某石化公司氢氟酸烷基化装置,在运行过程中HF对人身体和周边环境产生的危害,对HF的危险性和污染源做出分析并提出具体的预防措施。

互联网摘选

5、

The design of DCS in HF Alkylation unit, MTBE unit and Gas Separation unit is introduced.

介绍了氢氟酸烷基化装置、甲基叔丁基醚(MTBE)装置及气分装置等的DCS的设计。

互联网摘选

6、

Reductive alkylation of surface amino groups in high activity PPK ( pig pancreas kallikrein) by glyoxylic acid in the presence of sodium cyanoborohydride results in increasing the stability against irreversible thermoinactivation.

以自制高活性PPK为材料,在氰基硼氢化钠存在下经水溶性乙醛酸修饰其表面氨基,使其抗不可逆热失活稳定性有显著提高。

互联网摘选

7、

Phase Transfer Catalytic P Alkylation of Dialkyl thiophosphite

硫代亚磷酸酯的固液相转移催化磷-烷基化方法

互联网摘选

8、

A polystyrene ( PS)/ EPDM blend formed in situ by Friedel-Crafts alkylation in melt state was developed. The effects of the type and addition level of Lewis acid and the temperature and time of mixing on the properties of blend were investigated.

在熔融状态下,利用Friedel-Crafts烷基化反应原位生成聚苯乙烯(PS)/EPDM共混物,考察路易斯酸品种、用量、混炼温度和混炼时间等对共混物性能的影响。

互联网摘选

9、

Alkylation of benzene with propylene to isopropyl benzene with ionic liquid as catalyst

一种用于苯-丙烯烷基化反应制异丙苯的离子液体催化剂

互联网摘选

10、

The influences of different ionic liquids, reaction time, reaction temperature, reactant ratio ( mole ratio of phenol to that of TBA), the amount of ionic liquid added on the alkylation reaction and the recycle of ionic liquid were studied.

考察不同的功能化离子液体、反应时间、反应温度、苯酚与叔丁醇的摩尔比以及离子液体的用量等反应条件对烷基化反应的影响,并考察了离子液体的循环使用。

互联网摘选

11、

The results showed that the dewatered ionic liquid could still catalyze the alkylation, and the carbonium mechanism was established through the GC-MS analysis of the reaction liquid product.

结果表明,脱水后的离子液体仍然可以催化烷基化反应,液体产物的GC-MS分析结果支持正碳离子机理。

互联网摘选

12、

Behavior of Trace Amount of HF Reaction Promoter in Alkylation Catalyzed by Solid Acid ⅰ. Promotion Effect of Promoter on Reaction

固体酸催化烷基化反应中微量氟化氢反应助剂的作用Ⅰ.助剂对反应的促进效应

互联网摘选

13、

In other words, the trace amount of HF acts as a reaction promoter and can raise the catalyst selectivity for the alkylation significantly.

这是一个重要和有趣的实验现象,它说明微量HF反应助剂可大幅度提高固体酸催化剂对烷基化反应的选择性。

互联网摘选

14、

Alkylation of Benzene with Long Chain Olefins over PW/ MCM-41

PW/MCM-41催化苯与长链烯烃烷基化

互联网摘选

15、

The Influence of Pressure, Space Velocity on the Alkylation of Benzene with Propylene over FX 01 Catalyst

压力、空速对FX-01催化剂上苯与丙烯烃化反应的影响

互联网摘选

16、

The Effects of Molecular Sieve Pore and Acid on Benzene Alkylation with Propylene

分子筛孔结构和酸性对苯与丙烯烷基化的影响

互联网摘选

17、

Factors influencing catalyst lifetime in alkylation reaction

烷基化反应沸石催化剂寿命的影响因素

互联网摘选

18、

2-tert-butylhydroquinone ( tbhq) was synthesized selectively from hydroquinone ( hq) and isobutylene by alkylation in the presence of catalyst h_3po_4 or h_2so_4-h_3po_4.the dosage of catalyst and charging method of hq were investigated.

以对苯二酚(HQ)和异丁烯为原料,在磷酸或硫酸-磷酸混合酸催化作用下进行烷基化合成2-叔丁基对苯二酚(TBHQ),探讨了催化剂种类及用量、加料方式对合成TBHQ选择性的影响。

互联网摘选

19、

synthesis of loxoprofen sodium ⅱ. highly regioselective alkylation

洛索洛芬钠合成工艺研究Ⅱ.高区域选择性烷基化合成法

互联网摘选

20、

Alkylation reaction of phenol with tert-butyl alcohol ( TBA) catalyzed by SO_3H-functionalized ionic liquids was investigated.

研究了SO3H&功能化离子液体催化苯酚与叔丁醇的烷基化反应。

互联网摘选

  • 今日热词
  • 热门搜索

英语网英语词典(dict.25820.com)为您提供在线翻译英语词典单词大全英译汉汉译英等英语服务!可按单词字数词义分类查询。支持lj:关键词格式查询例句。

用户反馈
请选择反馈类型(可多选):
您的联系方式:
反馈内容:
提交成功 小编会尽快处理
回到顶部
点击反馈