etherification造句
例句與造句
- A study on starch etherification with 2 - chloroethanol
氯乙醇醚化反應(yīng)的研究 - Effect of reaction temperature on etherification of light fcc gasoline
反應(yīng)溫度對(duì)輕汽油醚化過(guò)程的影響 - Determination of degree of etherification of sodium carboxymethylcellulose for detergents
洗滌劑用羧甲基纖維素鈉醚化度的測(cè)定 - Etherification of light fcc gasoline over supported tungstophosphoric heteropolyacid catalyst
采用負(fù)載型磷鎢酸催化劑的輕汽油醚化 - It is required to add some water to wash the oil in the material after etherification reaction
酯化反應(yīng)結(jié)束后需加入一定比例的水,對(duì)物料進(jìn)行洗油。 - It's difficult to find etherification in a sentence. 用etherification造句挺難的
- Conclusion this facile etherification procedure is superior to other methods , due to its simplicity , the used of cheap reagents and excellent yield
結(jié)論該工藝操作簡(jiǎn)便、試劑價(jià)廉易得、產(chǎn)率高，實(shí)現(xiàn)了對(duì)原有工藝的改進(jìn)。 - Beginning with fluorobenzaldehyde , cyfluthrin was synthesized by bromination , acetalation , etherification , hydrolysis , and esterification , with a total yield of 45 %
以對(duì)氟苯甲醛為起始原料，經(jīng)過(guò)溴化、縮醛化、醚化、水解、酯化合成氟氯氰菊酯，總收率45 % 。 - Using refined cotton , chloroacetic acid , sodium hydroxide and hydrogen peroxide as main feedstock , sodium carboxymethyl cellulose was made by the process of basification , etherification , abstersion and drying
摘要以精制棉、氯乙酸、氫氧化鈉和過(guò)氧化氫為原料，經(jīng)過(guò)堿化、醚化、洗滌、干燥，制得羧甲基纖維素鈉。 - Soluble in water and many organic solvent , owning good lubricity and thermal stability , almost having no toxicity and excitability , being able to occur esterification reaction and etherification reaction with other compounds
能溶于水和多種有機(jī)溶劑，有優(yōu)越的潤(rùn)滑性及熱穩(wěn)定性，幾乎沒(méi)有毒性和刺激性，可與其他化合物起酯化、醚化反應(yīng)。 - Methods atomoxetine hydrochloride was synthesized using 3 - phenyipropanol as the starting material via six steps , such as chlorination , bromination , etherification , substitution , separation of levorotary isomer and acidification by gaseous hydrogen chloride
方法以1 -苯丙醇為起始原料，經(jīng)氯代、溴代、醚化、胺化、拆分、氯化氫成鹽6步反應(yīng)合成鹽酸托莫西汀。 - Abstract : propylene alcohol ethers is one of the fine chemicals with many uses and lower toxicity , which is widely studied now . the research progress on the catalysts in the etherification of propylene oxide with alcohol was reviewed in this paper
文摘:丙二醇醚是一種低毒用途廣泛的精細(xì)化學(xué)產(chǎn)品,目前國(guó)內(nèi)外對(duì)其生產(chǎn)工藝與催化劑的開(kāi)發(fā)廣為關(guān)注.本文作者較為系統(tǒng)地概述了國(guó)內(nèi)外有關(guān)合成丙二醇醚催化劑的研究現(xiàn)狀 - This text carries through investment decision analysis about technology indraught of petrol etherification of liaohe petrifaction company . and combines company reality to draw up feasible and optimal petrol etherification technology project in some aspects which including technology , economic and social benefit
本文采用定性與定量相結(jié)合的方法對(duì)遼河石化公司引進(jìn)汽油醚化技術(shù)進(jìn)行了科學(xué)的投資決策分析，在結(jié)合公司實(shí)際的基礎(chǔ)上，給出了技術(shù)上，經(jīng)濟(jì)上，社會(huì)效益上都可行的也是最佳的汽油醚化技術(shù)方案。 - These years we have developed strongly acidic macroreticular catalysts based on styrene dvb . catalyst resin d006 for mtbe tame etbe , also as catalyst use for producing tba by isobutene hydration and direct producing gasoline with high octane rating by light gasoline etherification . d008 for sba ipa , also can be used for making methyl ethyl ketone by acetone one - stepping process , tert - butanol by isobutene hydration , etherified gasoline by the etherification of isopentene and isohexene in light gasoline with methyl alcohol , high
以上，增強(qiáng)了催化活性，從而延長(zhǎng)了使用壽命，提高了周期產(chǎn)量二低溫活性好，選擇性強(qiáng)，提高了mtbe的純度，降低了雜質(zhì)含量三在同樣裝置中，可增大負(fù)荷，提高產(chǎn)量，降低生產(chǎn)成本和費(fèi)用。 - As to the separation of p - xylene / m - xylene , in order to blend polymer hydrophobe with p - cd which is preferential to adsorb p - xylene , etherified p - cd was synthesized using benzyl chloride ( phch2cl ) . the influences of etherification conditions on the reaction conversion and the degree of substitution of etherified p - cd were investigated . the reaction conversion increases with the increasing of molar ratio of phcr ^ cl : p - cd and the concentration of p - cd
對(duì)于px mx體系的分離，為使對(duì)px具有優(yōu)先絡(luò)合能力的一環(huán)糊精( cd )能夠與油溶性高分子共混，本文采用williamson合成法運(yùn)用氯化芐( phch _ 2cl )使-環(huán)糊精( - cd )醚化，并由元素分析結(jié)果，計(jì)算出醚化產(chǎn)物的取代度和轉(zhuǎn)化率，系統(tǒng)地考察了反應(yīng)條件對(duì)轉(zhuǎn)化率和取代度的影響。 - Two kinds of flavonoids in water extracts , water - extraction and alcohol precipitation , alcohol extracts were found by paper chromatography . they were separated and purified by thin - layer chromatography , one of which was primarily identified by uv as 4 " , 5 - dihydroxy - flavonol etherification or 4 " , 5 , 8 - trihydroxy - flavonol etherification
水提物、水提醇沉物、醇提物等3種提取物紙層析結(jié)果顯示有兩種黃酮類(lèi)化合物，經(jīng)薄層層析分離純化，并進(jìn)行紫外光譜分析，初步測(cè)定其中一組分為4 ， 5 -二羥基黃酮醇醚或4 ， 5 ， 8 -三羥基黃酮醇醚。