欧美1314免费大片,日韩精品一区日韩在线,久久人人妻人人做人人爽,亚欧美一区二区三区

你好,歡迎訪問濟(jì)南金昊化工有限公司!

專注品質(zhì),信賴服務(wù)

我們用心做產(chǎn)品服務(wù)

咨詢熱線:

13655318786

公司新聞

您現(xiàn)在的位置: 網(wǎng)站首頁>>新聞中心>>公司新聞山東順酐的制備方法是什么?

山東順酐的制備方法是什么?

來源:http://www.myxshdh.cn/ 日期:2019-12-07 發(fā)布人: 瀏覽次數(shù):0
  通過更近對市場的調(diào)查回訪我們發(fā)現(xiàn),很多客戶對順酐的制備方法還不是了解的很明白,今天小編就將查閱的相關(guān)資料與大家分享一下,希望引起大家的重視,讓大家對順酐有一個深層次的了解。這樣大家在購買使用順酐時也能做到心中有數(shù),不怕上當(dāng)受騙,希望對大家有所啟發(fā)與幫助。
順酐廠家
  Through the recent market survey and return visit, we found that many customers don't understand the preparation method of Shandong maleic anhydride very well. Today, the editor will share the relevant information with you, hoping to attract your attention and let you have a deep understanding of Shandong maleic anhydride. In this way, when you purchase and use Shandong maleic anhydride, you can also have a clear idea, not afraid of being cheated, and hope to inspire and help you.
  1. 苯氧化制山東順酐
  1. Oxidation of benzene to Shandong maleic anhydride
  將苯與空氣混合(苯為1%-1.4% )經(jīng)換熱器預(yù)熱后,進(jìn)人列管式催化反應(yīng)器。在壓力為0.1-0.2MPa、溫度為350-400℃的反應(yīng)條件下進(jìn)行氧化反應(yīng),所得產(chǎn)物經(jīng)兩臺換熱器、一臺冷卻器后,冷卻到接近露點(diǎn)(55―65℃)。冷卻后的反應(yīng)物進(jìn)入分離器,分離器底部得粗順酐,進(jìn)入粗順酐罐。分離器頂部流出物進(jìn)人洗滌塔,用水洗滌,塔頂為多余空氣和未反應(yīng)的苯,苯可用吸附回收。洗滌塔塔底水溶液進(jìn)人脫水器,分離出水,所得粗順酐進(jìn)人粗順酐罐。粗順酐進(jìn)一步進(jìn)人蒸餾塔進(jìn)行蒸餾精制,得順酐。所得山東順酐可進(jìn)行異構(gòu)化得富馬酸和蘋果酸。
  The mixture of benzene and air (benzene is 1% - 1.4%) is preheated by heat exchanger and then put into the tubular catalytic reactor. The oxidation reaction was carried out at the pressure of 0.1-0.2mpa and the temperature of 350-400 ℃。 The product was cooled to the dew point (55-65 ℃) by two heat exchangers and one cooler. The cooled reactant enters the separator, and the crude maleic anhydride is obtained at the bottom of the separator and enters the crude maleic anhydride tank. The effluent from the top of the separator enters into the washing tower and is washed with water. The top of the tower is redundant air and unreacted benzene, which can be recovered by adsorption. The bottom water solution of the washing tower enters into the human dehydrator, the separated water, and the obtained crude maleic anhydride enters into the human crude maleic anhydride tank. Crude maleic anhydride is further distilled into a distillation tower to obtain maleic anhydride. The maleic anhydride can be isomerized to fumaric acid and malic acid.
  2.C4餾分部分氧化制順酐
  2. Partial oxidation of C4 fraction to maleic anhydride
  工業(yè)上用不經(jīng)分離的C4餾分或分離異丁烯和丁二烯后的C4餾分為原料順酐。C4餾分與空氣混合后進(jìn)人流化床氧化反應(yīng)器,在300―500℃溫度下,與反應(yīng)器中的催化劑接觸順酐。氧化反應(yīng)器頂部流出的反應(yīng)生成物進(jìn)人吸收塔,用水作為吸收劑,塔頂氣體經(jīng)廢水
  Maleic anhydride is produced from C4 fraction without separation or C4 fraction after separation of isobutylene and butadiene. C4 fraction is mixed with air and then enters the fluidized bed oxidation reactor. At 300-500 ℃, it contacts with the catalyst in the reactor to produce maleic anhydride. The reaction products from the top of the oxidation reactor enter the absorption tower, and water is used as the absorbent. The gas from the top of the tower flows through the waste water

相關(guān)新聞
深夜三级福利在线播放-日韩精品一区二区在线天天狠天| 男人的天堂久久精品激情-最新亚洲精品a国产播放| 国产免费一区二区三区不-日本少妇免费一区二区三区| 欧美日韩国产综合四区-爆操极品尤物熟妇14p| 在线成色中文综合网站-国产二区精品视频在线观看| 久久人妻一区二区三区欧美-国内不卡的一区二区三区| 国产在线观看高清精品-四季av一区二区三区中文字幕| 欧美字幕一区二区三区-好吊妞欧美一区二区在线观看| 蜜臀一区二区三区精品在线-99久久久精品免费看国产| 免费看黄色污污的网站-欧美一区二区三区爽爽| 人妻少妇无乱码中文字幕-人成免费视频一区二区| 欧美日韩国产在线资源-超碰成人国产一区二区三区| 日韩亚洲欧美综合在线-成人在线网站在线观看| 女主播啪啪大秀免费观看-精品99午夜福利影院| 亚洲区欧美区在线视频-亚洲碰碰人人AV熟女天堂| 国模自慰一区二区三区-日韩一级黄色片天天看| 日本欧美在线视频观看-国产一区二区三区无码下载快播| 欧美精品一区二区三区爽爽爽-日韩国产精品亚洲经典| 日韩二级视频在线观看-美女扒开奶罩露出奶子的视频网站| 在线观看中午中文乱码-2021国产一级在线观看| 熟女熟妇伦51788-国产av在线播放一区二区三区| 亚洲欧美另类综合偷拍-婷婷社区综合在线观看| 国产人妻人伦精品日本-国产98超碰人人做人人爱| 哦啊好大用力欧美视频-麻豆国产传媒片在线观看| 欧美日韩精品人妻在线-在线播放中文字幕一区| 久久网站中文字幕精品-三级精品久久中文字幕| 日韩高清在线观看一区二区-美产av在线免费观看| 日韩欧美国产综合久久-国产精品一起草在线观看| mm在线精品视频在线观看-欧美国产日韩在线一区二区三区| 精品老熟妇一区二区三区-日韩丰满一区二区三区| 麻豆久久国产精品亚洲-日本理论中文字幕在线视频| 欧美三级韩国三级日本三斤-日本不卡一区不卡二区| 夜夜久久国产精品亚州av-欧美大屁股一区二区三区| 亚洲黑人欧美一区二区三区-亚洲一区二区三区免费视频播放| 中文字幕偷拍亚洲九色-亚洲视频不卡一区二区天堂| hd在线观看一区二区-免费一区二区三区毛片在线| 日韩二级视频在线观看-美女扒开奶罩露出奶子的视频网站| 欧美日韩国产综合新一区-国产综合av一区二区三区| 亚洲女人黄色录像一区-日韩av电影在线免费看| 看肥婆女人黄色儿逼视频-秋霞电影一区二区三区四区| 久色高清精品在线国产-国产精品视频一区三区四区|