手机版网投网下载

contact us


Address: 9-6 Xinjian West Road, Zhoucun District, Zibo City
(Shandong Hongxin Chemical Co., Ximen diagonally across)
National free consultation hotline: 400-0533-359
Phone: 0533-6450255, 8809155
Contact: Liu Chuantao (General Manager)
Postcode: 255300
QQ: 270649857
Mobile: 13508942138
Email: lct1125@sina.com
lct1125@sohu.com

News recommendation
当前位置: 首页 - 公司新闻 Company NewsCurrent Location: Home - Company News
What is the preparation method of Shandong maleic anhydride?
Release time: 2019.12.02 News source: Shandong Shunxinlong New Material Technology Co., Ltd. Browse times:

Through the recent market survey and return visits, we found that many customers did not understand the preparation method of Shandong maleic anhydride . Today, the editor will share the relevant information with you, hoping to attract everyone's attention and let everyone pay attention to Shandong. Maleic anhydride has a deep understanding. In this way, everyone can be sure when buying and using Shandong maleic anhydride, not afraid of being deceived, I hope to inspire and help everyone.

Benzene oxidation to Shandong maleic anhydride
After mixing benzene with air (1% -1.4% of benzene), it is preheated by a heat exchanger and then enters a tubular catalytic reactor. The oxidation reaction is carried out under the reaction conditions of a pressure of 0.1-0.2 MPa and a temperature of 350-400 ° C. The obtained product is cooled to near the dew point (55-65 ° C) after passing two heat exchangers and a cooler. The cooled reactants enter the separator, and 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 a washing tower and is washed with water. The top of the tower is excess air and unreacted benzene. Benzene can be recovered by adsorption. The aqueous solution at the bottom of the washing tower is introduced into a dehydrator to separate water, and the obtained crude maleic anhydride is introduced into a crude maleic anhydride tank. The crude maleic anhydride is further fed into a distillation column for distillation and purification to obtain maleic anhydride. The obtained Shandong maleic anhydride can be isomerized to obtain fumaric acid and malic acid.
2. Partial oxidation of C 4 fractions to maleic anhydride Industrially, maleic anhydride is produced from C 4 fractions without separation or C 4 fractions after isobutene and butadiene separation. The C 4 fraction is mixed with air and enters a fluidized bed oxidation reactor, and is contacted with a catalyst in the reactor to produce maleic anhydride at a temperature of 300-500 ° C. The reaction product flowing out of the top of the oxidation reactor enters the absorption tower, and water is used as an absorbent.

Shandong Shunxinlong New Material Technology Co., Ltd. Website: http://hfzyzn.com Welcome you!
Please Baidu: Shun Xinlong maleic anhydride , Shun Xinlong phthalic anhydride , Shun Xinlong dicyclopentadiene , Shun Xinlong refined terephthalic acid

Previous: Nothing for now Next: What is the business method of dicyclopentadiene?
Related Information:
What is the preparation method of Shandong maleic anhydride? 2019-12-02
What is the business method of dicyclopentadiene? 2019-11-25
Why can Shandong Province become the main production area of Shandong maleic anhydride? 2019-11-18
Pure terephthalic acid is the first choice in chemical fiber 2019-11-11
What are the main application fields of Shandong Phthalic Anhydride? 2019-11-04
Packaging, storage and transportation of purified terephthalic acid 2019-10-28
Production method of crude terephthalic acid 2019-10-21
What is the main medium of purified terephthalic acid? 2019-10-14

Copyright: Shandong Shunxinlong New Material Technology Co., Ltd. Address: No. 9-6 Xinjian West Road, Zhoucun District, Zibo City (Shandong Hongxin Chemical Company West Gate diagonally across)
电话:0533-6450255,8908155 联系人:刘传涛(总经理) 手机:13508942138 National free consultation hotline: 400-0533-359 Tel: 0533-6450255, 8908155 Contact person: Liu Chuantao (general manager) Mobile phone: 13508942138
Postcode: 255300 QQ: 270649857 Email: lct1125@sina.com lct1125@sohu.com
Main Products: Maleic anhydride - phthalic anhydride -dicyclopentadiene- pure terephthalic acid
电玩城游戏大厅 胜博发娱乐游戏 电子捕鱼平台 正规棋牌游戏平台 最火的捕鱼游戏 网上棋牌手游大全 app博彩游戏 九五至尊网站是多少 万鑫娱乐游戏 中文电子游戏官网