酯化 的英文怎麼說
中文拼音 [zhǐhuà]-
Methods : benzocaine was synthesized from p - nitrobenzoic acid via two steps through esterifying and reduction
方法:以對硝基苯甲酸為起始原料,經酯化,還原兩步合成苯佐卡因。The by - product including yellow water and ending water in liquor production was used to produce esterifying liquid through the addtion of ending liquor, daqu, quality aged pit mud, fermented grains, quality edible alochol, caproic acid and esterifying enzyme and yeast for liquor use only etc
摘要以白酒生產的副產物黃水和尾水,添加酒尾、大麴、優質老窖泥、酒醅、優質食用酒精、己酸、酯化酶和酒用酵母等生產酯化液。The new synthesis of enol phosphate phosphorus, sulfur, silcon 1996 , 118 , 113
應用固液相轉移方法合成肌醇磷酸酯化學學報1994 , 53 , 305Preparation of dieters multi - ring liquid crystal by method of oxidizing and esterifying
氧化酯化法合成雙酯基多環芳香醛類液晶Study on the esterifying process and kinetics of polythylene - glycol and methacrylic acid
聚乙二醇與甲基丙烯酸的酯化工藝及動力學研究They may be mono, or triacylglycerols according to the number of ? oh groups esterified
根據氫氧根離子酯化的數目為單,雙,三酰基的酯。Using the phosphotungstic acid immobilized on active carbon as catalyst, the iso - amyl gallate was synthesized directly by esterifying isoamyl alcohol and gallic acid
摘要以活性炭固載磷鎢酸作為催化劑,用沒食子酸與異戊醇直接酯化合成了沒食子酸異戊酯。Isopropylidene glycerol is prepared by condensation of acetone with glycerol, thereafter it was esterified with octanoyl chloride in pyridine as catalyst, and finally the latter was decomposed with boric acid
摘要以甘油和丙酮為原料制得異丙叉甘油,其與辛酰氯在吡啶催化下酯化,再經硼酸作用下分解得到單辛酸甘油酯。Under alkaline condition, the descreasing of esterified copolymer viscosity indicate the esterified copolymer is slow releasing. the effect of the complex superplasticizers and the single one is compared in this paper
通過對水泥一水體系的ph值和酯化產物的ph對性能的影響的討論,確定酯化產物使用時的最佳酸堿度。In order to improve the performance of the maleic anhydride - co - acrylamine copolymer water - reducing agent, the copolymer is monoesterified with the polyethylene glycols. the fluidity of the esterified copolymer has been increased 60 %, and it has good retarding performance
通過對不同條件下得到的共聚物的酯化產物的性能的測試得到初始中和度、引發劑用量、反應物濃度、反應溫度與酯化產物性能的關系。Test method for ester value of solvents and thinners
溶劑和稀釋劑酯化值的試驗方法Essential oils - determination of ester value
香精油.酯化值的測定The results showed that the reaction condition became milder over expansible graphite, but the esterification efficiency was lower than 40 %
結果表明,在可膨脹石墨的催化下,酯化條件明顯緩和,但酯化產率較低,不到40 % 。The rate of hydrolysis is for the most part significantly lower than the esterification rate.
多數情況下水解速度較酯化速度低得多。Both the free hydroxyl groups readily undergo esterification.
兩個自由羥基,都容易酯化。This article mainly focus on the selection and amelioration of catalyst. we think the mechanism of depolymerization reaction of the poly lactic acid ( oligomer ) is a intramolecular ester exchange reaction
本文從改善合成反應的催化條件入手,通過對丙交酯合成反應的機理分析,認為整個反應是一個酯化和分子內的酯交換的反應過程。The technical difficulties in low - alcohol liquor production mainly cover the following aspects : the bleeding of ethyl palmitate, ethyl oleate and ethyl linoleate etc. after alcohol - degrading might produce the lost of gloss, turbidity and precipitate ; the suspended substances produced in distillation and packing, the production water, and the metal ions contained in production containers are the main reasons for the precipitate in liquor ; besides, the hydrolization reaction and esterification reaction of liquor body during shelf period would also produce the lost of gloss, turbidity and precipitate
低度白酒生產過程的技術難點主要是白酒降度產生失光、渾濁、沉澱,其主要原因是由於降度后棕櫚酸乙酯、油酸乙酯和亞油酸乙酯等析出;蒸餾、包裝等過程帶入的懸浮物,生產用水、生產容器所含金屬離子等為低度白酒產生沉澱的主要原因;還有低度白酒酒體在貨架期的水解、酯化反應也會引起低度白酒產生失光、渾濁和沉澱。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。Phytosterol and phytostanol have been converted to the corresponding fatty acid esters via lipase - catalysed esterification with fatty acid or transesterification with mythyl esters of fatty acid or triacylglycerols
摘要植物甾醇和植物甾烷醇在脂肪酶催化作用下同脂肪酸酯化或同脂肪酸甲酯或三酰甘油酯交換可形成植物甾醇酯和植物甾烷醇酯。分享友人