齊齊哈爾大學化學工程與工藝專業(yè)畢業(yè)設(shè)計論文(年產(chǎn)5萬噸丙酮車間丙酮精餾工段初步設(shè)計)-全文預覽
【正文】 混合液，然后再用硝酸氧化制得己二酸。環(huán)已烷法共分兩步進行，第一步為苯加氫作環(huán)已烷，世界上共有兩工藝，一種為氣相加氫，一種為液相加氫。另外開發(fā)的工藝路線有空氣氧化等多種工藝。 本課題 通過酯化法分離混合二元酸 不僅反應(yīng)條件溫和而且 二元酸二甲酯的收率可達 89%。 結(jié)論 .............................................. 錯誤 !未定義書簽。 酯化過程中醇酸摩爾比的影響 ................. 錯誤 !未定義書簽。 酯化正交 實驗結(jié)果 ........................... 錯誤 !未定義書簽。 酸值的測定 ............................. 錯誤 !未定義書簽。 IV 甲醇羰基化法醋酸 的分離 ................... 錯誤 !未定義書簽。 實驗試劑 ............................... 錯誤 !未定義書簽。 減壓蒸餾原理 ........................... 錯誤 !未定義書簽。 本課題的研究內(nèi)容 ........................... 錯誤 !未定義書簽。 Abstract ........................................................... I 第 1 章 緒論 ........................................................ 5 課題的目的、意義 ............................................ 5 環(huán)己酮 的由來 ............................................. 5 環(huán)己酮 的利用 ............................................. 6 環(huán)己酮 的分離 ............................................. 6 環(huán)己酮 的用途 ............................................. 8 環(huán)己酮 制備的研究 ............................................. 9 固體酸 H 催化法 ........................................ 10 硫酸氫鈉催化法 ........................................ 11 固載磷鎢酸催化法 ...................................... 11 樹脂催化法 ............................ 錯誤 !未定義書簽。 domestic use II recrystallization recovery, but recovery was less than 60%, large amount of wastewater, not only pollute the environment, but also a waste of resources. In order to make the best use, this application of basic research carried out to C4C6 dicarboxylic acid as raw material mixture, ptoluenesulfonic acid as catalyst, prepared by mixing two yuan acid ester, and the use of vacuum distillation to get pure dimethyl ester. Experiment examined the response of various factors, and use a mixture of dimethyl ester prepared with different octanol prepared by mixing two yuan for transesterification ethylhexyl sebacate. According to the experimental data show that, by esterification of dicarboxylic acid mixture separation process route is feasible. Esterification of the appropriate reaction conditions: reaction time , alkyd molar ratio of 6:1, % mixed acid catalyst, in this condition, binary acid ester yield of 89%. Esters derived from crude esterification can be carried out under the pressure of 40mmHg vacu esterification can be effectively separated mixed dicarboxylic acid. Key words: mixed dibasic acid。國外一般將其送進污水處理裝置作焚燒或填埋處理；國內(nèi)有采用重結(jié)晶法回收，但回收率低于 60％，廢水量較大，不僅對環(huán)境造成污染，而且也造成資源的浪費。由于其含雜質(zhì)、水分多，顏色呈綠色或黃褐色，難以利用。 關(guān)鍵詞 ： 環(huán)己酮 ； 環(huán)己烯 ；酯交換；混合二元酸二甲酯 Abstract Mixed dibasic acid (DBA), also known as nylon acid, adipic acid production process byproducts, only domestic producers of adipic acid byproduct mixture in each of dicarboxylic acid 4060 million tons. Because of its impurities, water content, the color green or brown, it is d
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