烷化法 的英文怎麼說
中文拼音 [wánhuàfǎ]
烷化法
英文
alkylation methods-
The technical character of two kinds of chemical synthesis process from ethylene oxide and acrolein as raw material to produce 1, 3 - propanedi - ol as well as compared with the production process which using glycerol and glucose biological produce 1, 3 - propane - diol is analyzed
重點分析了以丙烯醛和環氧乙烷為主要原料的兩種化學合成工藝的技術特徵,並與以葡萄糖甘油為原料、生物法和一1 , 3 -丙二醇的生產工藝進行了對比。Direct alkoxylation of aromatic compounds is virtually unknown.
事實上還不知道芳香族化合物的直接烷氧基化的方法。05. 01 test methods for traces of volatile chlorides in butane - butene mixtures
丁烷-丁烯混合物中揮發性氯化物痕量測試方法Standard test methods for traces of volatile chlorides in butane - butene mixtures
丁烷丁烯混合物中揮發性氯化物的痕量測試方法Encapsulated tetradecane and paraffin wax particles were prepared by complex coacervation as well as emulsifier - free emulsion polymerization
通過復凝聚法、無皂乳液聚合法等微膠囊化方法,制得了十四烷、 20石蠟等低溫相變材料的微膠囊。Study on the mixed micellar ligand color reaction of scandium with eriochrome cyanine r and lactic acid in the presence of ctmab and its application
溴化十六烷基吡啶分光光度法測定食品中鉬的研究Ethyl cellulose was synthesized successfully in one - step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent
摘要採用纖維素與過量的氯乙烷及氫氧化鈉反應,以甲苯為稀釋劑,用一步法成功地合成了乙基纖維素。This method is to obtain multi - fungi from water and waster water by methylene chloride fluid - fluid extract nitrogen, and then take the concentration purification to the highly effective liquid phase color spectrometer where it can be detected by the diode matrix detector
摘要用二氯甲烷液液萃取氮吹濃縮法萃取水和廢水中的多菌靈,取濃縮純化后的有機相直接進樣到高效液相色譜儀,用二極體矩陣檢測器檢測,根據保留時間外標法定量。The methods - three dimension fabric - enforced laminates, and sparse fabric - enforced laminates, layer - enforced laminates ? to enhance the interlaminar toughness of fabric - reinforced laminates were discussed in this paper. the stitching method to enhance interlaminar toughness of stitched - laminates was mainly discussed in this paper based on our research and experiment. the middle - alkali glass fabric used as enforced - material with thickness of 0. 2mm, 3 section 600 deniner kevlar yarn is used as stitching thread in this research, which improved lock stitching way and different kinds of stitching mode were adopted
以提高層合板復合材料的層間斷裂韌性(能量釋放率)為目標,採用中堿玻璃布為增強材料,對疊層后的玻璃布,採用凱芙拉縫合線、改進的鎖型縫合方法、不同的縫合工藝進行了縫合;基體採用的是不飽和樹脂,固化劑為過氧化甲乙酮,促進劑為環烷酸鈷液;在室溫下採用真空輔助rtm ( resigntransfermolding )成型固化方法,製作了不同縫合工藝的玻璃布增強復合材料層合板。Liquified petroleum gases - calculation of vapour pressure and relative density and octane number
液化石油氣蒸氣壓和相對密度及辛烷值計演算法Spectrophotometric determination of zirconium with o - cl pf and cpc
氯化十六烷基吡啶光度法測定鋯New developments of polycarboxylic acid derivative catalysts, ion exchange resin catalysts, macrocyclic chelating compound catalysts, quaternary phosphonium salt catalysts, heterogeneous hydrotalcite - type catalysts and other catalysts which to be used in ethylene oxide catalytic hydration, and the catalysts of synthesis method of ethylene glycol via preparation and reaction of ethylene carbonate are expounded
闡述了用於環氧乙烷催化水合反應中的多羧酸衍生物催化體系、離子交換樹脂催化體系、大環螯合物催化體系、季?鹽催化體系、多相水滑石型催化體系及其他催化體系近年來的研究進展;同時闡述了用於碳酸亞乙酯法合成乙二醇反應中的催化體系的新進展。Liquiefied petroleum gases. commercially available butane. plumbite of sodium and sulfur method
液化石油氣.可商業采購丁烷.鈉和硫的鉛酸鹽法They are acrylaldehyde hydration, ethylene oxide formylation and biological zymolysis methods
即丙烯醛水合法,環氧乙烷甲酰化法,生物發酵法。Aminated and hydroxylated polysulfone membranes were prepared by amination and hydroxylation reaction, respectively. then bovine albumin ( bsa ) - fixed membranes were obtained by crossed - linking albumin into porous membrane with 1, 1 ' - carbonyldiimidazole and bisoxirane reagents, respectively. a mathematical model for facilitated transport in asymmetric membranes with fixed site carriers was derived by assuming an instantaneous, microscopic concentraion fluctuation in the membrane
以氯甲基聚碸為基材,通過相轉化法制備出具有底部貫通孔的非對稱膜,通過胺化和羥基化反應,分別制得胺化聚碸膜和羥基化聚碸膜,再採用羰基二咪唑和雙環氧烷兩種活化試劑對其進行活化,將牛血清白蛋白固載在膜內,獲得固定白蛋白促進傳遞膜。The compound modification of silane wet method and stearic acid dry method modification combine the advantage of individual stearic acid modification and silane modification. the indices are listed as following : wetting contact angle 140, penetration time 200 minutes, oil absorption contents 1. 4, dispersion degree17. 5. on the basis of compound modification, silane and stearic acid cooperation modification simplify the modification craft
試驗研究表明,單一硅烷改性,干法效果優于濕法;硅烷濕法與硬脂酸干法復合改性,結合了硬脂酸、硅烷單獨改性的優勢,改性后的指標分別為:接觸角140度,滲水時間200min ,吸油值31 . 4 ,分散度17 . 5ml ;在復合改性的基礎上,硅烷與硬脂酸復配干法改性,進一步簡化了改性工藝,改性后的指標分別為:接觸角145度,滲水時間220min ,吸油值28 . 2 ,分散度18 . 0ml 。A super acylation catalyst, 4 - dimethylamino pyridine ( dmap ), was prepared and used to synthesize cholesteryl ester compounds. four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate, cholesteryl dicarboxylate, cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method. chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis, ftir, dsc and polarized microscopy with a hot stage
本文合成了高效酰化催化劑4 -二甲基氨基吡啶( 4 - dimethylaminopyridine , dmap ) ,採用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱脂族二羧酸膽甾醇酯、烯酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物,並進行了化學結構和液晶性能的表徵。The results have testified that the charges of the shell materials and core materials will dominate whether the stable core - shell structure forms or not, by employing the silica shell formed through the hydrolysis of silane agents and the core formed by microemulsion
證明了基於硅烷化試劑水解形成的二氧化硅外殼與微乳液方法形成的內核實現穩定的核殼結構結合,關鍵是由殼材料與內核材料的電性決定的。There are mang immobilization methods we can use directed or indirected. the use of sam in various fields of research is rapidly growing, a interesting work is based on the strong absorption of disulfides ( r - s - s - r ), sulfides ( r - s - r ) or thiols ( r - sh ) on the gold surface. while integrating with the new improving in biomolecule immobilization, this thesis presents a theoretical and applied studies of several new piezoelectric immunosensors based on the au - s sams
通常將生物分子固定於石英晶體電極表面或石英晶體表面的惰性載體塗層主要有直接固定法和間接固定法,包括有硅烷化連接法,聚合物膜連接法,非特異性吸附蛋白間接固定法, lb膜技術,生物素-親和素體系( bas )法以及自組裝單分子層( sams )技術等等。Abstract : based on the react kinetics in the synthesis of chloromethane by the method of hydro - chlorinating methanol in gas - liquid phase and the experiment of cold mould, the technique parameters synthesizing chloromethane were defined. by using advanced process of refinement and condensation, the engineering level of synthesizing chloromethane was greatly enhanced
文摘:通過對氣液相甲醇氯氫化法生產氯甲烷的反應動力學及冷模試驗的研究分析,確定氯甲烷合成的工藝參數,同時採用了先進的產品精製及冷凝技術,使氯甲烷生產水平產生了質的飛躍。分享友人