午夜影院,久久99青青精品免费观看,国产亚洲色婷婷久久99精品,天天日天天色

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(yè)>>新聞中心>>公司新聞精對(duì)苯二甲酸是如何產(chǎn)生的?

精對(duì)苯二甲酸是如何產(chǎn)生的?

來(lái)源:http://qugjs.com.cn/ 日期:2020-05-07 發(fā)布人: 瀏覽次數(shù):0
  以對(duì)二甲苯為原料,液相氧化制得粗對(duì)苯二甲酸,經(jīng)加氫處理、結(jié)晶、分離、干燥制得精制對(duì)苯二甲酸。精制對(duì)苯二甲酸是石油的下端。石油被加工成石腦油(也稱為輕汽油),從石腦油中提煉出MX(與二甲苯混合)和PX(對(duì)二甲苯)。以PX(65%-67%)為原料,乙酸為溶劑,制得精對(duì)苯二甲酸。然后加氫精制粗對(duì)苯二甲酸,除去雜質(zhì),然后結(jié)晶、分離、干燥,精制的對(duì)苯二甲酸產(chǎn)品,即成品對(duì)苯二甲酸。
順酐廠家
  Crude terephthalic acid was prepared by liquid-phase oxidation of p-xylene, and purified terephthalic acid was prepared by hydrogenation, crystallization, separation and drying. Purified terephthalic acid is the lower end of oil. Petroleum is processed into naphtha (also known as light gasoline), from which MX (mixed with xylene) and PX (p-xylene) are extracted. Purified terephthalic acid was prepared with PX (65% - 67%) as raw material and acetic acid as solvent. Then hydrofining crude terephthalic acid, removing impurities, crystallization, separation, drying, production of refined terephthalic acid products, that is, finished terephthalic acid.
  以上是順酐廠家為大家介紹的相關(guān)內(nèi)容,想要了解更多內(nèi)容,歡迎訪問網(wǎng)站:http://qugjs.com.cn
  The above is the relevant content introduced by maleic anhydride manufacturer. For more information, please visit the website: http://qugjs.com.cn

相關(guān)新聞