【正文】 畢業(yè)設(shè)計(jì)（論文）任務(wù)書 一．設(shè)計(jì)（論文）題目： 300 噸 /年對(duì)羥基苯甲酸丁酯 生產(chǎn)車間工藝設(shè)計(jì) 二．現(xiàn)有文獻(xiàn)、資料： [1] 北京石油化工學(xué)院學(xué)報(bào)， 2021， 12(3)： 914 [2] 中國(guó)食品添加劑， 2021， (2)： 1925 三．設(shè)計(jì)（論文）要點(diǎn)： [1] 分析評(píng)估各 生產(chǎn)方法和工藝，市場(chǎng)狀況 [2] 完成 物料衡算和熱量衡算 [3] 完成投資估算 [4] 繪制工藝流程圖 四．畢業(yè)設(shè)計(jì)（論文）完成項(xiàng)目： 2 篇 1 篇 1 份 （論文）說明書 ▉ 有 □無 （論文）圖紙 ▉ 有 □無 五．畢業(yè)設(shè)計(jì)（論文）工作期限 : 任務(wù)書發(fā)給日期 2021 年 12 月 9 日 設(shè)計(jì)（論文）工作自 2021 年 12 月 9 日至 2021 年 4 月 31 日 設(shè)計(jì)（論文）指導(dǎo)教師 系主任 主管院長(zhǎng) I 300 噸 /年對(duì)羥基苯甲酸丁酯生產(chǎn)車間工藝設(shè)計(jì) 摘 要 對(duì)羥基苯甲酸丁酯目前是世界上用途最廣、用量最大、應(yīng)用頻率最高的一系列 防腐劑 ，在食品，醫(yī)藥，化妝品等多個(gè)領(lǐng)域得到廣泛應(yīng)用 [1]。 本文通過對(duì)幾種催化劑的比較，決定選擇使用濃硫酸為本次設(shè)計(jì)的生產(chǎn)工藝催化劑，并對(duì)羥基苯甲酸和正丁醇為原料，以環(huán)己烷為帶水劑，進(jìn)行對(duì)羥基苯甲酸丁酯的生產(chǎn)。該工藝過程簡(jiǎn)單，產(chǎn)品純度高，是對(duì)羥基苯甲酸丁酯生產(chǎn)的一條高產(chǎn)、優(yōu)質(zhì)、低成本的有效途徑。本論文設(shè)計(jì)了一個(gè)年產(chǎn) 300噸對(duì)羥基苯甲酸丁酯 的生產(chǎn)車間，在該工藝過程中，原料進(jìn)料條件是 25℃ ， 1bar，對(duì)于一次反應(yīng)， 對(duì)羥基苯甲酸進(jìn)料 ；正丁醇進(jìn)料 ；濃硫酸進(jìn)料 ；環(huán)己烷進(jìn)料 Kg。得到的產(chǎn)品的純度是 ％，收率是 ％。此外，反應(yīng)釜一年工作 2400小時(shí)，年產(chǎn)量達(dá)到 300噸。 同時(shí)， 對(duì)反應(yīng)釜，精餾塔等進(jìn)行物料衡算，對(duì)反應(yīng)釜、 對(duì)換熱器等進(jìn)行熱量衡算，對(duì)釜體、精餾塔等進(jìn)行設(shè)備評(píng)估。最后對(duì)產(chǎn)品的經(jīng)濟(jì)合理性、投資等進(jìn)行分析，即投資估算，得到投資回收期為 年，對(duì)該工廠的財(cái)務(wù)、利潤(rùn)等進(jìn)行評(píng)價(jià)，確認(rèn)該工藝在經(jīng)濟(jì)上可行。最后通過計(jì)算和選型給出了生產(chǎn)工藝流程圖，車間平面圖和設(shè)備圖。 關(guān) 鍵詞 ： 對(duì)羥基苯甲酸丁酯 ，物料衡算，熱量衡算，工藝流程 II THE PLANT PROCESS DESIGN OF 300 TONS/YEAR BUTYL PHYDROXYBENZ0ATE PRODUCTION ABSTRACT Nipagin ester is not only the world39。s most widely used preservatives, but also used the most frequently. It39。s widely used in Chemical, Pharmaceutical, Food, Feed and Other Industrial Anti corrosion,it is also the Organic synthesis intermediates, but as an antiseptic in food is its main this paper, Concentrated sulfuric acid was used as the catalyst of this production through selecting, and Phydroxybenzoic acid and butanol were used as raw materials for production of propyl acetate. It is a highyield, highquality, lowcost effective way to product Butyl phydroxybenzoate with simple process and high product purity. A plant process of producting 300 tons Butyl phydroxybenzoate each year was designed. In one time ,the quantities of the materials of Phydroxybenzoic butanol sulfuric acid and cyclohexane are , kg at 1 bar and 25℃ ,and the purity of the production reaches percent, and the yield is percent .In addition,the reaction kettle works 2400 hours a year ,and the quantity reaches 300 ,We get the quality that each raw material needed through material balance and the heat that needed to pass to through heat balance。The economic rationality and III investment of the product were analysed。 The finance and profits of the factory were evaluated, which values the period for recovery of investment is years.,and confirms that it can work main product equipments was selected, and the production process flow diagram workshop floor plan diagram and equipment are finally drawed . Key Words: Butyl phydroxybenzoate, material balance, heat balance, production flow diagram IV 目 錄 摘 要 ............................................................ I ABSTRACT ...................................................... II 第一章 緒論 ....................................................... 1 對(duì)羥基苯甲酸丁酯概述 ............................................ 1 對(duì)羥基苯甲酸丁酯的性質(zhì) .......................................... 1 對(duì)羥基苯甲酸丁酯結(jié)構(gòu)式 ........................................ 1 物理性質(zhì) ..................................................... 2 化學(xué)性質(zhì) ...................................................... 2 對(duì)羥基苯甲酸丁酯 的用途 ........................................... 2 對(duì)羥基苯甲酸丁酯的生產(chǎn)方法 ....................................... 3 第二章 市場(chǎng)需求 ................................................... 4 生產(chǎn)現(xiàn)狀 ......................................................... 4 市場(chǎng)需求 ......................................................... 5 國(guó)內(nèi)外貿(mào)易現(xiàn)狀 .................................................. 6 市場(chǎng)份額統(tǒng)計(jì) .................................................. 6 發(fā)展趨勢(shì) ........................................................ 7 第三章 工藝路線 ................................................... 9 合成路線 ......................................................... 9 合成工藝 ....................................................... 10 傳統(tǒng)工藝 ..................................................... 10 路線及工藝選擇 ................................................. 11 合成路線 ..................................................... 11 合成工藝 ..................................................... 11 設(shè)計(jì)部分 ....................................................... 11 產(chǎn)品介紹 ..................................................... 12 原料簡(jiǎn)介 ..................................................... 13 工藝流程設(shè)計(jì) ................................................. 14 工藝流程簡(jiǎn)述 .................................................. 15 第四章 能量衡算 ................................................. 16 物料衡算 ........................................................ 16 反應(yīng)釜物料衡算 ................................................ 17 分水器物料衡算 ................................................ 19 結(jié)晶釜物料衡算 ................................................ 19 精餾塔物料衡算 ................................................ 19 熱量衡算 ........................................................ 20 熱量衡算 的原理 ................................................ 20 熱量衡算過程 ....................