酯化了的 的英文怎麼說
中文拼音 [zhǐhuàlēde]
酯化了的
英文
esterified-
The operation principle and device to produce acetin and hydroxyethyl acetate for foundry firming agent were analyzed in the paper, and the choice of esterification catalyst and dehydrated agent in the esterifying process also were analyzed theoretically, and finally, the better producing operation device, catalyst and dehydrated agent were obtained
摘要分析了鑄造用有機酯固化劑酯酸甘油酯和乙二醇醋酸酯合成工藝原理及裝置,同時對有機酯合成工藝條件中脫水劑和催化劑的選擇的理論依據進行了分析,得出鑄造用有機酯固化劑的最佳合成工藝裝置和脫水劑、催化劑。The results suggested that the ph value, the type of monomers, the type, concentration and surface properties of inorganic nanoparticles, the type and concentration of emulsifier have a great influence on the encapsulating emulsion polymerization and the obtained latex stability. if selecting cationic emulsifier ( ctab ), low water soluble monomers ( such as ba, st ) and hydrophobic nano - silica, the inorganic nanoparticles would be encapsulated by polymers through ultrasonic irradiation successfully under alkalescent condition
系統研究了ba 、甲基丙烯酸甲酯( mmal苯乙烯舊t )以及它們的共聚體系在超聲輻照作用下包裹聚合的主要影響因素,結果表明: ph值、單體的種類、無機納米粒子的種類、濃度及表面性能、乳化劑的種類及濃度等對超聲輻照包裹乳液聚合以及復合體系的穩定性有較大的影響。Thisarticle studies the synthetic process of di - n - hexyl adipate. it discusses the kinds ofnon - acidic catalyst used in the process. it points out the characteristic and the keytechnology of the synthesis, and the application of the product in pvb resin
研究了己二酸二正己酯的合成方法,介紹了己二酸二正己酯合成中的非酸催化劑的種類,討論了工藝特點、工藝關鍵以及產品與pvb樹脂配套應用檢驗結果。The article analyze the concrete drying shrinkage mechanism, find the major factors of affecting the drying shrinkage, analyze the lack of shrinkage reducing agent, who be of low molecular weight and line chain, design a new shrinkage reducing agent ? ? shrinkage reducing agent of poly - acrylate. the shrinkage reducing agent of poly - acrylate is mainly composed of crylic acid 、 cinnamene 、 poly - glycol 、 solicitating agent 、 chain transferring agent and activator, which come by these processes of polymerization 、 esterifing and neutralization to form a pectinate polymer, which have a high molecular weight and many poly - oxidative alkenes
論文分析了混凝土乾燥收縮的機理,確定了影響乾燥收縮的關鍵因素,分析已有低分子量的、直鏈型減縮劑的不足,設計了一種新型的減縮劑? ?聚丙烯酸鹽類減縮劑,其主要由丙烯酸、苯乙烯、聚乙二醇、引發劑、鏈轉移劑、催化劑等經過聚合、酯化和中和反應,生成一種高分子量的、含聚氧化烯鏈的聚合物。Abstract : the esterification of phthalic acid and ethylene glycol under microwave field was studied. the results showed that it could get high yield of product and need less fime to complete the reaction
文摘:觀測了鄰苯二甲酸及乙二醇在微波輻照下的升溫曲線,並研究了鄰苯二甲酸和乙二醇在微波輻照下的酯化反應,結果表明,微波輻照下的酯化反應行為優于常規條件(電爐加熱)下的酯化反應行為。The barnidipine hydrochloride were prepared via cyclocondensation from m - nitrobenzaldehyde, methyl acetoacetate and anmmonium bicarbonate, hydrolysis, esterification with opticaliy ( s ) - n - benzyl - 3 - py - rrolidinol, recrystallisation and salification
摘要研究了以碳酸氫銨,間硝基苯甲醛和乙酰乙酸甲酯為原料,經縮合、部分水解,再與( s ) - n -芐基3 -羥基吡咯烷經酯化、分步重結晶、成鹽得到鹽酸巴尼地平的工藝路線。The amidation and esterification of different cyclic anhydrides with aniline and phenol gave different major products, and the routes were optimized
摘要研究了環酐與苯胺和苯酚的酰胺化及酯化反應,優化了酰胺化及酯化反應條件。This paper investigates the types of acrylic modified solvent ( methyl and dimethyl benzene ), the usage of acrylic acid, the usage of initiator, esterification time, and preliminarily tests the dehydration rate of modified demulsifier
摘要對丙烯酸改性溶劑的種類(甲苯和二甲苯) 、丙烯酸的用量、引發劑的用量以及酯化時間進行考察,並針對改性后的破乳劑的脫水速度和脫水率進行了初步的檢測。The effect of the catalysts, e. g., concd. sulfuric acid, p - toluenesulfonic acid, dodecylbenzenesul - fonic acid on the esterification of starch was studied with cassava starch as the raw material, acetic anhydride as the esterifying agent and acetic acid as the dispersion medium
摘要以木薯澱粉為原料,用醋酸酐為酯化劑,以乙酸為分散遞質,探索了以濃硫酸、對甲基苯磺酸、十二烷基苯磺酸為催化劑對澱粉醋酯化反應的影響。The droplet size was found though the experience formulae and experience methods
根據經驗公式及實驗方法計算了鈦酸丁酯溶液的霧化粒徑。The di - ester of fatty acid can be syn thesized by the esterification of fatty acid and glycol. the synthesized di - ester can be used as leather fatliquoring agent
脂肪酸與乙二醇發生酯化反應生成的脂肪酸乙二醇酯,是一種合成脂肪酸酯,可用作皮革加脂劑,作者就此進行了研究。Abstract : the di - ester of fatty acid can be syn thesized by the esterification of fatty acid and glycol. the synthesized di - ester can be used as leather fatliquoring agent
文摘:脂肪酸與乙二醇發生酯化反應生成的脂肪酸乙二醇酯,是一種合成脂肪酸酯,可用作皮革加脂劑,作者就此進行了研究。The subchronic toxicity experiment studied the effects of different pyrethroid concentration ( 1 / 10 1 / 20, 1 / 40 1 / 80 of 96hlc50 ) on the behaviour, growth, haematological biochemical indices and pathology of carp in 60 days. the results showed that pyrethroid had no effect on the body length while had obvious influence on the body weight intake of food and swiming, some carp then showed intermittence toxic symptom until death
亞慢性試驗研究了鯉魚在不同低濃度擬除蟲菊酯( 96hlc _ ( 50 )的1 80 、 1 40 、 1 20 、 1 10 )下60天暴露實驗中,其行為、生長、血液生理生化指標和組織病理學所發生的變化和受到的不同影響。Studied the liquid - phase synthesis of butyl acetate from n - butyl alcohol and acetic acid using the supported heteropoly blue as catalyst. examed several factors imposing on esterification. the results revealed : using this catalyst, the reactions conversion percentage reaches nearly 100 %, product yield is 98. 9 %, selectivity is 98. 9 %. reusing it 10 times, the efficiency is still well. in addition, using this catalyst, the reactions temperature is mild, the reaction time is short and the equipment hasnt any erosion. furthermore, there is no “ threewastesdischarge
對以負載型雜多藍為催化劑的乙酸與正丁醇的液相酯化反應進行了研究.考察了影響酯化反應的因素.結果表明:以負載型雜多藍為催化劑,酯化反應轉化率接近100 % ,收率可達98 . 9 % ,選擇性為98 . 9 % ,重復使用10次催化效果仍好.該催化劑還有反應條件溫和、反應時間短、對設備無腐蝕、無三廢排放等優點The development on research of catalytic esterification of rosin in the past 30 years are summarized. conditions and catalysts used in the reaction are specially noted and compared. it is pointed out that enforcement of such researches on rosin esterification is helpful for better utilization of rosin resources in china. fifty - two references are cited
綜述了30年來松香催化酯化反應的研究進展,重點考察了反應使用的催化劑、反應條件以及產品性能,對進一步研究松香酯化改性具有指導意義,並有利於我國松香資源的充分利用。Abstract : the development on research of catalytic esterification of rosin in the past 30 years are summarized. conditions and catalysts used in the reaction are specially noted and compared. it is pointed out that enforcement of such researches on rosin esterification is helpful for better utilization of rosin resources in china. fifty - two references are cited
文摘:綜述了30年來松香催化酯化反應的研究進展,重點考察了反應使用的催化劑、反應條件以及產品性能,對進一步研究松香酯化改性具有指導意義,並有利於我國松香資源的充分利用。Citric acid, taking the place of hno3, solutes the substance which does not solute in solution, and it acts as the ligand of metallic ionic and the hydrolysis catalyst of si ( oc2h5 ) 4, which reduces the pollution caused by no2 which forms at the decompose process of the hot treatment. by changing the means of calcine of the drier gel, choosing the suitable temperature to burn the gel, the high temperature calcine time is shorted, which solves the question of the long period calcine. so the preparation process of the matrix and composite was finished by using more lower temperature than the traditional solid state reaction and more shorter time than the traditional sol - gel process
結果使基質和復合物的制備在比傳統的固相反應法低得多的溫度下和比常規的溶膠凝膠法短得多的時間里完成;五、對基質及復合物的干凝膠、粉體和燒結體進行了ir 、 dta 、 xrd 、 seni及交流阻抗譜表徵,研究結果表明:在溶膠向凝膠的轉化過程中同時存在著正硅酸乙酯自身的聚合作用和檸檬酸鹽絡合物之間的聚合作用:干凝膠向產物粉體的轉化在400600c之間進行;基質li 。By detailed calculation, the restriction of no. 11 polyester equipment first esterification reactor increasing productivity was analyzed, and the bottle neck of heat transfer capability was indicated
通過熱量衡算分析了第一酯化反應器負荷的提升限度,指出了制約傳熱能力的瓶頸。Peg and superfluous aa reaction by complete concatenation method, the esterify production " esterify water " and acid number were mensurated, it shows that the esterify reaction would be processed under 100 esterify temperature and with amine accelerantthe tide of esterify reaction was substantiated by ir. in the ir spectrum, the characteristic peak of hydroxy of peg and carboxyl of aa were weakened. and the ester link of peg was reinforce. the " esterify water " was increased gradually and the acid number of esterify production was debased gradually along with the extent of esterify time and the augmentation of molecular weight of peg
通過聚乙二醇與過量的丙烯酸採用全連續法進行反應,測定酯化產物「酯化水」和酸值等宏觀手段反映出在胺類促進劑、 100的酯化溫度等條件下的酯化進程,而利用紅外光譜( ir )分析所反映的聚乙二醇的羥基和丙烯酸的羧基特徵峰減弱,而pea的酯基特徵峰加強等特徵進一步證實了宏觀手段所表現出來的酯化趨勢:隨著酯化時間的延長和聚乙二醇分子量的增大,產生的「酯化水」逐漸增加,酯化產物的酸值逐漸降低;從酯化時間看,當反應時間達到300min時,酯化物的酸值達到最小,而從ir分析來看,酯化物pea4的羥基峰在300min時減弱到最小, pea23在120min時羥基峰的表現出酯化基本完全。By correct grasping the esterification autoclave temperature increasing rhythm and the feeding opportunity of pta slurry, better controlling of the esterification technology conditions, avoiding the esterification condensation system overload, the preparation of the first batch of qualified oligomer polymer start - up was finished, the start - up cost was reduced
通過準確把握酯化釜的升溫節奏, pta漿料的注入時機,控制好酯化工藝條件,避免酯化冷凝系統過載,完成了開車第一批合格低聚物的制備,從而降低了開車成本。分享友人