Suitable water-immiscible organic solvents include aromatic hydrocarbons, eg toluene, xylene, naphthalene, tetrahydronaphthalene and methyl naphthalene; chlorinated aromatic hydrocarbons, eg chlorobenzene, fluorobenzene, chloronaphthalene and bromonaphthalene; esters, eg butyl acetate, ethyl acetate, methyl benzoate, ethyl benzoate, benzyl benzoate, butyl benzoate, phenylethyl acetate, butyl lactate, benzyl lactate, diethyleneglycol dipropionate, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, di(2-ethylhexyl) phthalate; alcohols having six or more carbon atoms, eg hexanol, octanol, benzyl alcohol, phenyl ethanol, phenoxy ethanol, phenoxy propanol and phenoxy butanol; ethers having at least 5 carbon atoms, preferably C 5-14 ethers, eg anisole and phenetol; nitrocellulose, cellulose ether, cellulose acetate; low odour petroleum distillates; turpentine; white spirits; naphtha; isopropylbiphenyl; terpene; vegetable oil; mineral oil; essential oil; and natural oil; and mixtures of any two or more thereof.

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Cellulose triacetate is the product of a chemical reaction between cellulose and acetic acid. Vinegar syndrome is the reverse reaction of the breakdown of the acetate.

醋酸纖維素是纖維素和醋酸反應(yīng)的產(chǎn)物在线免费一级黄片，而醋酸綜合癥就是醋酸鹽衰化中退化反應(yīng)的結(jié)果欧美三級片AAAA。

On the condition of using fatty acids of rapeseed oil as raw material,85% acetic acid as solvent, pelargonic acid as recrystalization solvent, this paper prepared azelaic acid and brassylic acid by ozonolysis ,oxidation decomposition ,recrystallization etc.

以蓖麻油酸為原料精品亚洲韩国一区二区三区、85%醋酸水溶液為溶劑，經(jīng)臭氧化日韩午夜神马视频在线播放免费观看、氧化分解黄色视频免费领取、沸水萃取等過(guò)程制備壬二酸的最佳反應(yīng)條件為：m：m(85%醋酸)=1：4，臭氧化溫度20-25℃伊人久久大香线蕉亚洲l；氧化分解溫度90-95℃久久精品视频国产，催化劑醋酸錳/醋酸銅用量為原料蓖麻油酸質(zhì)量的0.09%，氧化分解4h精品欧美色视频网站在线观看，壬二酸的收率為62.5%人人插人人做人人干。

The experimental results showed that elute ability were improving with the increa...

實(shí)驗(yàn)結(jié)果表明，隨著檸檬酸另类亚洲欧美专区第一页、醋酸溶液濃度的增大五月丁香激情久久，其對(duì)重金屬的淋洗能力呈增強(qiáng)趨勢(shì)；在同等濃度條件下亚洲国产欧美日韩欧美2016，檸檬酸對(duì)Cu免费黄色视频应用、Pb、Cd的淋洗效果比醋酸的好久久免费视频性爱视频，而對(duì)Zn的淋洗亚洲二级激情aaaa片，醋酸的淋洗效果比檸檬酸的好；對(duì)Cu国产污污网站入口、Zn99r在线精品视频播放、Pb、Cd的淋洗上亚洲欧美在线观看wwwwww，選擇檸檬酸的最佳濃度分別為11mol/L美国黄片一级A片、11mol/L、0.71mol/L国产野视频在线观看快播、11mol/L红牛影视AV在线地址，選擇醋酸的最佳濃度均為11mol/L。

The optimum conditions were obtained as follows: the weight ratio of fatty acids and 85%acetic acid is 1:4, ozonolysis temperature is 20-25℃, manganese/copper acetate as catalyst, and the amount of catalyst is 0.15% of fatty acids, oxidation decomposition temperature and oxidation decomposition time are 90-95℃ and 4 hours respectively. the yields of azelaic acid and pelargonic acid are 57.4% and 51.6% respectively.

以菜油酸為原料精品国内在线、85%醋酸水溶液為溶劑囯产激清黄色网，經(jīng)臭氧化、氧化分解精品欧美一区二区在线观看视频性色、重結(jié)晶等過(guò)程制備壬二酸和十三烷二酸的最佳反應(yīng)條件為：m：m(85%醋酸)=1：4久久青草精品同性恋视频，臭氧化溫度20-25℃；氧化分解溫度80-85℃免费成年人在线，催化劑醋酸錳/醋酸銅用量為原料菜油酸質(zhì)量的0.12%久久久久久久精品国产免，氧化分解時(shí)間3h，重結(jié)晶溶劑壬酸的用量為5倍質(zhì)量的氧化分解產(chǎn)物時(shí)国产综合男女视频一区二区，十三烷二酸的收率為58.3%www,3rb3rb免费视频，壬二酸的收率為57.2%99农村一级毛片。

Factors were reviewed, and optimum conditions was obtained,these experiments provide effective data for industrial manufacture.On the condition of using fatty acids of cottonseed oil as raw material,85% acetic acid as solvent,this paper prepared azelaic acid and pelargonic acid by ozonolysis, oxidation decomposition , extracted by boiling water,active carbon absorpting etc.

以棉油酸為原料、85%醋酸水溶液為溶劑激情按摩系列片AAAA国产馆，經(jīng)臭氧化黄网站色视频免费一级毛片、氧化分解、沸水萃取国产一区在、活性炭吸附脫色等過(guò)程制備壬二酸的最佳反應(yīng)條件為：m：m(85%醋酸)=1：4国产又黄又爽又色视频在线，臭氧化溫度20-25℃；氧化分解溫度90-95℃91久久久久精品久久久久久久久，催化劑醋酸錳/醋酸銅用量為原料棉油酸質(zhì)量的0.15%熟妇操B，氧化分解4h，壬二酸收率為57.4%欧美亚洲日本高清不卡，壬酸收率為51.6%www.淫荡网。

The vinegar ' inoculates the acetic acid fungus , and the acetic acid fungus will oxidize the alcohol into the acetic acid, will establish the acidity in accordance with the working condition again, general acidity of acetic acid 2.0-3.0 about for pH, when reach this value in acidity, need to utilize the sterilization project to kill the acetic acid fungus , otherwise the acidity may be sourer and sourer !

醋」是接種醋酸菌，而醋酸菌會(huì)將酒精氧化成醋酸0808贵妃网理论片，再依生產(chǎn)條件設(shè)定酸度sese96，一般醋酸的酸度為pH為2.0-3.0左右，當(dāng)酸度達(dá)到此值時(shí)天海翼精品久久久久中文字幕，便需利用殺菌工程將醋酸菌殺滅自拍网色，不然酸度可能會(huì)愈來(lái)愈酸！

The optimum reaction condition of NaClO oxidative pretreating and viny acetate acetylating technique has been determined according to sizing property, that further improves the function of acetylated starch size and expands its application in warp sizing .

對(duì)醋酸淀粉酯的變性工藝進(jìn)行了系統(tǒng)的研究和探討偷拍外国呦呦呦，以漿紗性能為依據(jù)玖玖视频网，確定了次氯酸鈉氧化預(yù)處理工藝和醋酸乙烯酯乙酰化工藝的最佳反應(yīng)條件性交色片视频，進(jìn)一步提高了醋酸淀粉酯漿料的性能黃色A片一级一级一级，擴(kuò)大了醋酸淀粉酯在紡織經(jīng)紗上漿中的應(yīng)用

This is a material in indigo grass branch and leaf of a kind of existence, produce the soluble white solution after fermenting, soak the fabric in this kind of solution, take out, turn into insoluble in water and blue and green and blue the oxidation of the oxygen in the air, it is able to bear drying in the sun washing and heating.

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On the basis of summarizing separation method of acetic acid-water system, we studied the azeotropic distillation process of acetic acid-water system, selecting butyl acetate, isobutyl acetate and isopropyl acetate as entrainers. The influence of packing height, ratio of water to entrainer and acetic acid initial concentration to separation effect of azeotropic distillation was studied in detail. Simulation calculations of general distillation and azeotropic distillation were carried out. The influence of reflux ratio, theoretical plate, feed position, feed temperature and feed concentration to distillation process were discussed. Preferred process operation parameter, which had guiding meaning to practical production of distillation process were obtained. Basic data for the process amplifying design of azeotropic distillation tower were provided. Invest and operation energy consumption of two distillation methods were compared. The elementary technical design of azeotropic distillation tower was carried out on the basis of result of simulation calculation. The type of major auxiliary equipments and inner parts of packed tower were selected.The research results are as follows:(1) Butyl acetate, isobutyl acetate and isopropyl acetate could be selected as entrainer, and separation effect was near.

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