本文關鍵詞：有機堿改性TS-1的表征及其甲乙酮氨氧化性能的研究，，由筆耕文化傳播整理發(fā)布。

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organic bases

     At the same time, the distributions of the particulate fractions were accomplished. The results showed that the percentages of organic acids, organic bases, aliphatic compounds, aromatic compounds, moderately polar neutral compounds and highly polar neutral compounds in the SOF from the DI diesel engine were 11.64%,15.21%,12.32%,9.97%,41.35% and 9.51% respectively.

     試驗結(jié)果表明,對于直噴式柴油機,有機酸、有機堿、脂肪烴類有機物、芳香烴類有機物、中極性有機物和高極性有機物6種組分在SOF中占有的比例分別為11.64%)〗、15.21%、12.32%、9.97%、41.35%和9.51%.

短句來源

     Characterization of Titanium Silicalite-1 Modified by Organic Bases and Its Performance in Ammoxidation of Methyl Ethyl Ketone

     有機堿改性TS-1的表征及其甲乙酮氨氧化性能的研究

短句來源

     The addition of organic bases such as trihydroxymethyl aminomethane and triethylamine at a concentration of 10% based on the oil mass to the reaction system can not only speed up the reaction,but improve the ME yield as well,with ME yields being 85.9% and 80.8%,respectively,after reaction for 12 h.

     在反應體系中添加適量(油重的10%)的有機堿三羥甲基氨基甲烷或三乙胺可有效提高酶促高酸廢油脂的酯交換反應速率和甲酯產(chǎn)率,使反應12 H后的甲酯產(chǎn)率分別達到85.9%和80.8%;

短句來源

     The soluble organic fractions(F0) in diesel exhaust were classifiedinto organic acids(F1), organic bases(F2), aliphatic compounds(F3), aromaticcompounds(F4), moderately polar neutral compounds(F5) and highly polar neutralcompounds(F6) by silica gel column chromatography and chemical methods.

     對萃取出的有機可溶成分（用F0表示）采用硅膠柱色譜法和化學方法分為有機酸、有機堿、脂肪烴類有機物、芳香烴類有機物、中極性有機物和高極性有機物六大類（分別用F1~F6表示）。

短句來源

     A series of six-coordinated complexes was prepared in solution by reaction of para-substituted meso-tetraphenylporphinatoiron (Ⅱ) nitrosyl (abb. as [T(p-NO_2)PP]Fe (Ⅱ) (NO)) with some organic bases. The factors affecting the stability of title comphxed were studied.

     用有機堿與亞硝�；に�(對-硝基)苯基卟啉鐵(Ⅱ)反應制備了系列六配位配合物(簡稱[T(p-NO_2)PP]Fe(Ⅱ)(NO)(B))。

短句來源

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     The reactions of a new tailed porphrinmangaanese complex, meso-mono-[o- (4-diethy-lamino)butyramidophenyl]triphenylporphyrin manganese ( Ⅲ ) chloride, PMn ( Ⅲ )Cl, with organic bases were studied and the equilibrium constants of the axial addition reactions for these bases to PMn( Ⅲ )C1 in benzene were measured by spectral technique.

     采用光譜技術研究了一種新型尾式錳(Ⅲ)卟啉——氯化meso-—[鄰-(4-二乙胺基丁酰胺基)苯基]三苯基卟啉合錳(Ⅲ)[筒作PMn(Ⅲ)C1]與有機堿的軸向反應,通過光譜滴定法測定了軸向反應在苯溶劑中的平衡常數(shù).

短句來源

     THE AXIAL REACTION OF COBALT(Ⅱ)TETRAKIS(4-TRIMETHYL AMINO PHENYL)-PORPHYRIN IODIDE HYDRATE WITH ORGANIC BASES

     碘化四-(4-三甲胺苯基)卟啉合鈷與含氮有機堿的軸向配位反應

短句來源

     By using the monolayer adsorption maxima of methyl red and p-NDMA, the specific surface area of the minerals and the effective adsorption area per molecule, the external surface coverages of the four minerals by the two organic bases were calculated.

     根據(jù)單分子層最大吸附量 ,礦物的比表面積及非垂直定向時一分子有機堿的有效占有面積 ,計算了四種粘土礦物表面甲基紅和N ,N -二甲基 -4 -亞硝基苯胺的覆蓋率。

短句來源

     It is also suitable for the determination of some other inorganic bases and organic bases.

     該法也適用于其它無機堿、有機堿的測定

短句來源

     Adducts of the complexes with nitrogen-containing organic bases were studied by spectroscopic titration method.

     用光譜滴定法研究了配合物與含氮有機堿的加合反應和性質(zhì)。

短句來源

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     HEATS OF INTERACTION OF ORGANIC BASES WITH POLYMER PROTECTED CATALYST PVC-AlCl_3

     HEATS　OF　INTERACTION　OF　ORGANIC　BASES　WITH　POLYMER　PROTECTED　CATALYST　PVC－AlCl＿3

短句來源

     It indicated fromthe action of weak organic bases that PSP reac-tion was dependent on the [H_(?n)~+] and amplitudeof ΔpH.

     討論了PSP反應對[H_(in)~+],ΛpH幅度大小的依賴關系。

短句來源

     Heats of immersion into a series of organic bases at 25℃ are reported for Polymer protected catalyst PVC-AlCl3. There is a good correlation between the heats of immersion of PVC-AlCl3 and thermochemical measurements of BF3 or SbCl5. The results have shown that the reaction of PVC-AlCl3 with various bases is essentially Lewis acid-base interaction and the surface acidity of PVC-AlCl3 is mainly attributed to Lewis acidity

     HEATS　OF　INTERACTION　OF　ORGANIC　BASES　WITH　POLYMER　PROTECTED　CATALYST　PVC－AlCl＿3HEATSOFINTERACTIONOFORGANICBASESWITHPOLYMERPR. .

短句來源

     In the presence of 0.15mol/L of sodium dodecyl sulfate (SDS), laurylsulfonic acid sodium salt (LAS), dodecylbenzenesulfonic acid sodium salt (DBS), the weakly organic bases of dimethyldodecylamine, dimethyloctadecylamine, diethanoidodecylamine and diethanoloctadecylamine can be directly titrated with 0.1 mol/L hydrogen chloride and good shapes of titration curves are obtained.

     在0.15mol/L的SDS、LAS、DBS表面活性劑存在下,有機弱胺:二甲基十二胺、二甲基十八胺、二羥乙基十二胺和二羥乙基十八胺可用鹽酸直接滴定,獲得良好滴定曲線。

短句來源

     24 new l-acyl-2-phenoxymethyl benzimidazoles and derivatives of 1-phenoxyacetyl imidazole have been prepared by the reaction of 2-sub-stituted benzimidazoles or imidazole with acyl chloride in the presence of organic bases such as trithylamine, pyridine or imidazole itself.

     2-取代的苯氧甲基苯并咪唑、咪唑分別與酰氯在縛酸劑存在下反應,制備了24個新的1-酰基2-苯氧甲基苯并咪唑及1-苯氧乙酰咪唑衍生物.

短句來源

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  organic bases

Adsorption of Organic Bases from Aqueous Solutions on Magnesium Oxide

It was established that the energy of adsorption of organic bases depends linearly on the effective charge of their nitrogen atoms.

This result is consistent with a model of dissolution of vitreous semiconductors in organic bases (amine) according to which the fundamental properties of bulk glasses remain unchanged upon formation of the films.

The effect of a lipophilic ionic additive, a tetradecylammonium salt of a liquid ion exchanger, on the selectivity of ion-selective electrodes (ISEs) for cations of nitrogen-containing organic bases was studied.

It was demonstrated that in the presence of organic bases (2,2'-dipyridyl and 1,10-phenanthroline) mixed-ligand complexes are formed and the luminescence intensity of terbium(III) increases by a factor of up to 250.

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In this paper, the visible absorption spectra of the reineckates of hetrazan and piperazine citrate in acetone were studied and found to be similar to that of the reagent itself rather than of the organic bases. The molecular composition of the reineckates has been confirmed by molecular weight determination. Furthermore, the solubility (in water) and the gram-molecular extinction coefficient of the reineckates were also determined. Based on these experiments and the red colour of the reineckates...

In this paper, the visible absorption spectra of the reineckates of hetrazan and piperazine citrate in acetone were studied and found to be similar to that of the reagent itself rather than of the organic bases. The molecular composition of the reineckates has been confirmed by molecular weight determination. Furthermore, the solubility (in water) and the gram-molecular extinction coefficient of the reineckates were also determined. Based on these experiments and the red colour of the reineckates in acetone, a colorimetric method for the estimation of hetrazan, piperazine citrate, and most of their preparations is proposed. In comparsion with the solvent extration or gravimetric procedure, it is simple, rapid, and accurate, which is therefore quite suitable as a routine method for quality control purpose.

本文對硫代氰酸鉻銨與海群生及驅(qū)蛔靈形成的沉淀的組成、沉淀的吸收光譜曲線、克分子吸收系數(shù)及水中溶解度等進行了系統(tǒng)的試驗研究,并擬訂了適用于此兩藥物及其制劑的比色測定方法.

In presence of certain catalysts, such as organic peroxides, organic bases, platinium or other metallic compounds, or in absence of catalysts but being radiated by ultraviolet light or γ-rays, or simply by heating under higher pressure, silanes of the type, RR＇R＇＇SiY, where R＇S may be alkyl, aryl or alkoxy groups or halogen atoms and Y may be either a hydrogen or an alkalie metal atom, can be added to the unsaturated compounds containing carbon-carbon or carbon and other elements(such as oxygen or nitrogen)multiple...

In presence of certain catalysts, such as organic peroxides, organic bases, platinium or other metallic compounds, or in absence of catalysts but being radiated by ultraviolet light or γ-rays, or simply by heating under higher pressure, silanes of the type, RR＇R＇＇SiY, where R＇S may be alkyl, aryl or alkoxy groups or halogen atoms and Y may be either a hydrogen or an alkalie metal atom, can be added to the unsaturated compounds containing carbon-carbon or carbon and other elements(such as oxygen or nitrogen)multiple bonds to form the coresponding substituted silanes. The manipulation of the reactions are relatively Simple and the yields of the reaction products are often fairly good and in some occasions even quantitative. Thus, it may be a hopeful way to synthesis various valuable monomers of organosilicon poly-mers through these reactions. In present review article, the literature data about this subject since the discovery of the reaction till 1961(and a few of 1962)have been collectec and discussed on a theoretical as well as a practical view.

硅烷類在過氧化物,紫外線,有機堿,鉑,鈀或其它金屬化合物存在下,或在高溫高壓下,或以r-射線照射,能與烯烴或炔烴以及它們的衍生物進行加成得到對應的烴基硅化合物;其中以H Si X_3最容易進行加成,H Si R X_2,H Si R_2 X次之;H Si(OR)_3,H Si R_3(R=C_6H_5例外),Si X_4最難,不飽和烴中碳鏈分枝愈多,加成愈困難。催化劑中以鉑催化劑(pt石棉,H_2 Pt Cl_6,pt/c)應用范圍最廣,催化效能最高,并且不致引起易聚合的烯烴發(fā)生聚合,硅烷與含碳氧或碳氮或氮氮雙鍵進行加成反應時,硅烷基總是加在雜原子上。這個反應是制備含長鏈烴基,具取代基的烴基及(?)基硅烷類的捷便方法。配合我國硅有機聚合物的生產(chǎn),這方面研究工作是亟待展開的,尤其硅烷與烯烴間的調(diào)聚反應,與那具有取代基烯烴及炔烴的加成反應特別值得令人注意。

The direct amperometric titration of amines with sodium tetraphenylborate solution based upon anodic depolarization at a dropping mercury electrode by the use of excess TPB titrant, was systematically investigated. The influence of various factors such as pH, volume of titration mixture, quantity of sample in a definite volume to be titrated were studied. Based upon the above observations, a method is proposed as follows: Pipette 0.5-2.0 ml (at a concentration of about 2×10~(-2)M) of samples of various...

The direct amperometric titration of amines with sodium tetraphenylborate solution based upon anodic depolarization at a dropping mercury electrode by the use of excess TPB titrant, was systematically investigated. The influence of various factors such as pH, volume of titration mixture, quantity of sample in a definite volume to be titrated were studied. Based upon the above observations, a method is proposed as follows: Pipette 0.5-2.0 ml (at a concentration of about 2×10~(-2)M) of samples of various amines into a 50 ml beaker and add 1% HAc to make a volume of about 10-20 ml. The dropping mercury electrode serves as the polarographic anode. Titrate the amines with 0.05 M standard Na-TPB solution (pH 8) at 0.18 V using the saturated NaCl bridge and S.C.E. as reference. After each addition, stir for one minute and allow the solution to obtain a steady current value, then record the galvanometric reading. The end point is graphically plotted with current versus milliliters of titrant; sharp breaks are obtained. The Na-TPB solution was standardized volumetrically by the standard mer- curic solution. Organic bases so determined include aniline, methyl aniline, diethylamine, ephedrine hydrochloride, dimethylaniline, trimethylamine hydrochloride, triethylamine hydrochloride, urotropine, and tetraethylammonium iodide. The relative error of this method is 2%. The more soluble salts of aliphatic primary amines such as methylamine, ethyl- amine, n-butylamine, and even in the case of ephedrine hydrochloride could not be ac- curately titrated. The application of this method to titrate the amines depend largely upon the structure of the amines and the solubility of amine-TPB salts. This method was also successfully applied to titrate the nitrogen containing drugs such as chlopromarzine, cinchophene, quinine sulphate, atropine sulphate, antipyrine, aminopyrine, rivanol, and strychnine.

本文研究了用pH8的四苯硼酸鈉水溶液對胺類的直接電流滴定法.滴汞為陽極,飽和甘汞為陰極,以3％瓊脂的飽和NaCl溶液為鹽橋組成電解池.適宜的滴定條件是:外加電壓+0.18伏;底液為pH 2-3的HAc-NaAc介質(zhì),而以1％HAc更為方便;滴定體積為10-20毫升.可測的濃度范圍和胺類的四苯硼酸鹽沉淀的溶解度有關:仲胺為1×10~(-3)-2×10~(-2M);叔胺為6×10~(-4)-2×10~(-2)M;季胺為4×10~(-4)×10~(-3)M;伯胺類不能測定.方法的相對誤差因沉淀的溶解度而異,一般在2％以下.滴定時沉淀可不必分離,且無需除氧,操作步驟比較簡易.

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  本文關鍵詞：有機堿改性TS-1的表征及其甲乙酮氨氧化性能的研究，由筆耕文化傳播整理發(fā)布。