The alkylate modification of pullulan which was produced by Aureobacidium pullulans was focused.
对出芽短梗霉发酵产生的普鲁兰多糖进行了烷(基)化改性,并通过扫描电镜、红外、元素分析及热分析等手段对其性质进行表征。
Catalytic effect of ionic liquids to isobutane and butene alkylate reaction was studied,composition of ionic liquids,isobutane and butene mole compares factors to the alkylate reaction influence was reviewed.
研究了离子液体对异丁烷与正丁烯烷(基)化反应的催化作用,考察了离子液体组成、异丁烷与正丁烯物质的量比等因素对烷(基)化反应的影响。
Advances in alkylate manufacture technology;
烷(基)化油生产技术的进展
After comparing the gasoline blending components and hydrocarbon group components of China with the facts of USA and Western Europe, we believe that with the 25Mt/a FCC gasoline base in our country , it is impossible to make hydrocarbon group composition obviously change through the method of dilution, and it is also not necessary to substantially enlarge the yield of alkylate to increas.
利用专门安排的加氢试验结果,进行分析和估算,对比了我国和美国、西欧的汽油调合组分和烃族组 成,认为我国由于有25Mt/a的FCC汽油,不可能通过稀释的办法来使烃族组成有根本的改观,也没 有必要采用大幅度扩大烷(基)化油产量来增加烷烃组分。
A desulfurization method is proposed for the removal of sulfur compounds from FCC gasoline by alkylation reaction of thiophenic sulfur with olefins over acid catalysts, and the higher boiling sulfur-containing products are removed by fractional distillation.
选择以噻吩的甲基取代衍生物(包括 2-甲基噻吩、3-甲基噻吩及 2,5-二甲基噻吩)与异丁烯的烷(基)化反应为模型反应,考察了经三氯化铝气相固载法改性的 CT175 树脂催化剂催化噻吩的甲基取代衍生物与烯烃的烷(基)化反应性能。
Its catalytic performances were studied by alkylation reaction of benzene and 1-dodecene in a micro-reactor.
采用溶胶 -凝胶法 ,将不同含量的杂多酸负载在硅基上制得HPWA/SiO2 催化剂 ,并用苯和十二碳烯烷(基)化反应评价了该催化剂的催化性能 ,考察了催化剂组成、焙烧温度、反应温度、空速对烷(基)化反应性能的影响 ,得到催化剂的最佳组成 :杂多酸的含量 30 % (ω)。
It gave references for adjusting inlet dosage of the two - section alkene and optimizing the condition of alkylation reaction.
在以氟化氢为催化剂的直链烷基苯工业化生产中,针对新开发的两段烯烃进料工艺,采用测定两段烯烃烷(基)化反应器进出口温差的方法汁算烯烃的转化率。
Reserch of N-Alkylation In Ionic Liquids;
离子液体中的N-烷(基)化反应研究
N-Alkylation of Some 5 , 6-Disubstitutent- 3, 4-dihydro-2-pyridones;
5，6－二取代－3，4－二氢－2－吡啶酮的N－烷(基)化反应
Study on a New One-step Reductive N-Alkylation of Amino Acids and Their Esters;
N-烷(基)化氨基酸和氨基酸酯的一步反应
Study on Methylation of β-Methylnaphthalene on HβZeolite;
Hβ沸石催化2-甲基萘甲醇烷(基)化的研究
Study on Methylation of Toluene with Methanol over ZSM-22 Catalysts;
ZSM-22催化甲苯甲醇烷(基)化反应的研究
Recent technology advances on selective toluene methylation of toluene with methanol to para-xylene were reviewed,including the reaction mechanism of the process,predominant active component,element modification methods on zeolites and several potential industrial technologies of methylation of toluene with methanol.
甲苯甲醇烷(基)化反应选择性合成高浓度对二甲苯技术可提高甲苯利用率,显著降低异构化和吸附分离装置负荷。
A series of new double 2-alkylthio-3-benzyl-5-arylmethylidene-4H-imidazolin-4-ones were synthesized by S-alkylation of 2-thioxo-3-benzyl-5-arylmethylidene-4-imidazolidinones,which were obtained via tandem aza-Wittig reaction of vinyliminophosphoranes,carbon disufide and benzyl(amine.
用烯基膦亚胺与二硫化碳、苄胺的串联aza-W ittig反应制取2-硫代-3-苄基-5-芳基亚甲基-4-咪唑啉二酮(5),5经S-烷(基)化反应合成了双2-烷硫基-3-苄基-5-芳基亚甲基-4H-咪唑啉-4-酮衍生物(6a~6d)。
The novel 2-alkylthio-3-(n-butyl)-5-phenylmethylidene-4H-imidazolin-4ones (2) were synthesized by S-alkylation reaction of 2-thio-3-(n-butyl)-5-phenylmethylidyne-4-imidazolidinone (1).
用2-硫代-3-正丁基-5-苯基亚甲基-4-咪唑啉二酮(1)的S-烷(基)化反应合成了新型2-烷硫基-3-正丁基-5-苯基亚甲基-4H-咪唑啉-4-酮衍生物(2)。
Ten open chain analogues with nitrogen or carbon as central atom (1a-e, 2a-e) were synthesized through O-alkylation of trithanoiamme, pentaerythritol and 4-hydroxy-antipyrine and S-alkylation of 2-mercaptobenzimidazole and 2-mercaptobenzothiazole with pentaerythrityltetrabromide.
通过三乙醇胺、季戊四醇及4-羟基安替比林的O-烷(基)化和用季戊四溴对2-巯基苯并咪唑、2-巯基苯并噻唑的S-烷(基)化方法。