【正文】 板圓缺面水平裝配。由于反應(yīng)溫度在2000C以下進(jìn)行，兩流體溫度變?yōu)椋簾崃黧w進(jìn)入換熱器的溫度為1900C，出口溫度定為600C；冷流體（循環(huán)水）進(jìn)口溫度為250C，出口溫度為550C?？紤]到搪鉛工藝的實(shí)施和搪鉛時(shí)的鉛中毒， 釜體和釜蓋須采用法蘭連接。 Re=(d2nρ)/式中：d=,n=,混合液平均密度ρ=,=故Re=106104為湍流，=Np,為功率因數(shù)，Np為功率數(shù)查圖Rushton算圖，當(dāng)Re=106時(shí)=Np=故 攪拌功率N=Npρn3d5=4801W選用螺旋板夾套，環(huán)隙E=100mm，螺距P=50mm。表8 攪拌器型式適用條件表攪拌器型式流動(dòng)狀態(tài)攪拌目的攪拌容器容積 (m3)轉(zhuǎn)速范圍(r/min)最高粘度(P)對流循環(huán)湍流擴(kuò)散剪切流低粘度混合高粘度液混合傳熱反應(yīng)分散溶解固體懸浮氣體吸收結(jié)晶傳熱液相反應(yīng)渦輪式○○○○○○○○○○○○1～10010～300500槳式○○○○○○○○○○1～20010～30020推進(jìn)式○○○○○○○○○1～100010～500500折葉開啟渦輪式○○○○○○○○1～100010～300500布爾馬金式○○○○○○○○1～10010～300500錨式○○○1～1001～1001000螺桿式○○○1～50～501000螺帶式○○○1～50～501000注：有○者為合用，空白者不詳或不合用。 t單位時(shí)間（1 h）　 QA=nAMA/ρt=1000 247。 q————物系與環(huán)境交換的熱。330= 每小時(shí)生產(chǎn)設(shè)計(jì)生產(chǎn)能力 DOP年生產(chǎn)能力根據(jù)設(shè)計(jì)任務(wù)規(guī)定為年生產(chǎn)50000噸/年，取工作日為330天，此規(guī)模采用連續(xù)操作比較合理。吸附劑成分為SiOAL2OFe2O3 、MgO等，助濾劑（硅藻土）成分為SiOAL2OFe2O3 、CaO、MgO等。為了防止反應(yīng)混合物在高溫下長期停留而著色，并強(qiáng)化酯化過程，在各級酯化釜的底部都通入高純度的氮?dú)猓ㄑ鹾浚?0mg/kg）。2．工藝參數(shù)的確定 酯化工序苯酐和辛醇按比例在5個(gè)串聯(lián)階梯形的酯化釜中，在氧化鋁與辛酸亞錫以1：1比例復(fù)配催化劑作用下酯化反應(yīng)生成粗酯，主要工藝參數(shù)確定如下：(1)進(jìn)料溫度及5釜的反應(yīng)溫度見表2。因此本設(shè)計(jì)采用的是非酸性催化劑。而連續(xù)法生產(chǎn)能力大，適合于大噸位的DOP的生產(chǎn)。3．項(xiàng)目設(shè)計(jì)依據(jù)和原則本化工課程設(shè)計(jì)，以設(shè)計(jì)任務(wù)書為基礎(chǔ)，綜合文獻(xiàn)檢索、資料收集，綜合分析，以最新科研成果和實(shí)際經(jīng)驗(yàn)為依據(jù)，搏眾家之長，選擇合適設(shè)計(jì)方案。據(jù)有關(guān)資料報(bào)道，近年來國外增塑劑生產(chǎn)能力超過了6400kt／a，國內(nèi)增塑劑需求增長率為8％左右，產(chǎn)品具有質(zhì)量高、品種多、環(huán)境污染少的特點(diǎn)。鄰苯二甲酸二辛酯是重要的通用型增塑劑，主要用于聚氯乙烯樹脂的加工，還可用于化纖樹脂、醋酸樹脂、ABS樹脂及橡膠等高聚物的加工，也可用于造漆、染料、分散劑等。分 子 式：C24H38O4 是重要的通用型增塑劑，是目前國內(nèi)外用量最大的增塑劑之一，廣泛用于橡膠、塑料和醫(yī)藥工業(yè)用途廣泛，在國民經(jīng)濟(jì)中占有十分重要的地位。關(guān)鍵詞：DOP 異辛醇 苯酐 工藝設(shè)計(jì) 工藝計(jì)算 設(shè)備選型 AbstractDioctyl phthalate ,referred to as DOP, Molecular Formula: C24H38O4 .It is important to generalpurpose plasticizer and has bee the largest amount used of plasticizerthe at home and abroad, now it is widely used in rubber, plastics and pharmaceutical industry, plays an important role in the national economy. After analysis and parison of various raw materials, synthesis, the design process is the use of multitank reactors in series continuous esterification technology, the catalyst is alumina with a 1:1 ratio of Sn catalyst pound annual output of 100,000 tons Dioctyl phthalate, to meet domestic demand. The design follows the mature technology, advanced technology, equipment configuration scientific, environmental safety, economic efficiency, the principle of reciprocity. After paring domestic and foreign advanced production methods, process and equipment configuration , the choices are starting from phthalic anhydride and isooctanol after esterification, de alcohol, refined by product line production process octyl phthalate. Design for production process design argument, the design of facilities and process selection, with a flow chart with control points, the main production equipment and size chart, workshop equipment configuration diagram. The last part is about environmental protection and labor safety, in order to achieve reduction of the three wastes emissions, strengthen the three wastes treatment, to ensure safe production purposes. Key word: DOP Ethylhexanol Phthalic Process Design Process Calculation Equipment Selection 目錄一．總論 71．概述 7 7 7 7 DOP的市場需求 82．設(shè)計(jì)的目的和意義 83．設(shè)計(jì)依據(jù)和原則 8 8 84．設(shè)計(jì)范圍 95．DOP生產(chǎn)能力及產(chǎn)品質(zhì)量標(biāo)準(zhǔn) 9 9 9二．生產(chǎn)工藝流程設(shè)計(jì)與論證 ……………………………………………10 1．生產(chǎn)工藝選擇與論證………………………………………………10 2．工藝參數(shù)的確定 ……………………………………………………11 ..........................................11 、洗滌工序 ....................................11 ..........................................12 、過濾工序 ....................................12 3．產(chǎn)工藝流程圖及其說明 ……………………………………………13 DOP生產(chǎn)工藝流程圖 …………………………………………13 生產(chǎn)工藝流程說明……………………………………………13三．工藝計(jì)算………………………………………………………………………14……………………………………………………………………14 …………………………………………………………14 …………………………………………… 15