etherification 中文意思是什麼
etherification
解釋
醚化作用-
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
摘要以精製棉、氯乙酸、氫氧化鈉和過氧化氫為原料，經過堿化、醚化、洗滌、乾燥，制得羧甲基纖維素鈉。 -
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，增強了催化活性，從而延長了使用壽命，提高了周期產量二低溫活性好，選擇性強，提高了mtbe的純度，降低了雜質含量三在同樣裝置中，可增大負荷，提高產量，降低生產成本和費用。 -
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
對于px mx體系的分離，為使對px具有優先絡合能力的一環糊精（ cd ）能夠與油溶性高分子共混，本文採用williamson合成法運用氯化芐（ phch _ 2cl ）使-環糊精（ - cd ）醚化，並由元素分析結果，計算出醚化產物的取代度和轉化率，系統地考察了反應條件對轉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種提取物紙層析結果顯示有兩種黃酮類化合物，經薄層層析分離純化，並進行紫外光譜分析，初步測定其中一組分為4 ， 5 -二羥基黃酮醇醚或4 ， 5 ， 8 -三羥基黃酮醇醚。 -
Beginning with fluorobenzaldehyde, cyfluthrin was synthesized by bromination, acetalation, etherification, hydrolysis, and esterification, with a total yield of 45 %
以對氟苯甲醛為起始原料，經過溴化、縮醛化、醚化、水解、酯化合成氟氯氰菊酯，總收率45 % 。 -
A study on starch etherification with 2 - chloroethanol
氯乙醇醚化反應的研究 -
Effect of reaction temperature on etherification of light fcc gasoline
反應溫度對輕汽油醚化過程的影響 -
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定 -
Etherification of light fcc gasoline over supported tungstophosphoric heteropolyacid catalyst
採用負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
酯化反應結束后需加入一定比例的水，對物料進行洗油。 -
Conclusion this facile etherification procedure is superior to other methods, due to its simplicity, the used of cheap reagents and excellent yield
結論該工藝操作簡便、試劑價廉易得、產率高，實現了對原有工藝的改進。 -
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
能溶於水和多種有機溶劑，有優越的潤滑性及熱穩定性，幾乎沒有毒性和刺激性，可與其他化合物起酯化、醚化反應。 -
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，經氯代、溴代、醚化、胺化、拆分、氯化氫成鹽6步反應合成鹽酸托莫西汀。 -
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化學產品，目前國內外對其生產工藝與催化劑的開發廣為關注.本文作者較為系統地概述了國內外有關合成丙二醇醚催化劑的研究現狀 -
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
本文採用定性與定量相結合的方法對遼河石化公司引進汽油醚化技術進行了科學的投資決策分析，在結合公司實際的基礎上，給出了技術上，經濟上，社會效益上都可行的也是最佳的汽油醚化技術方案。
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