Chemie-Ingenieur-Technik p. 635 - 639 (1974)
Update date:2022-08-12
Topics:
Fremery
Hoever
Schwarzlose
Electrochemical synthesis of hydroquinone by anodic oxidation of benzene and cathodic reduction of the quinone transported in a branch stream of benzene has been tested in continuous operation for 4000 h in a pilot plant. The process utilizes the favorable solubilities of quinone in benzene and of hydroquinone in aqueous sulfuric acid as the electrolyte. The current efficiency was established as 40% for optimum volume/time yield with regard to the cell; under these conditions complete electrolyte purification is also accomplished. A branch flow of electrolyte taken from the cathode circulation via a cathodic post-reduction yields hydroquinone crystals by concentration; after a washing operation the product is of technical purity. Since all flows of the process can be completely recycled, entirely pollution-free hydroquinone production becomes feasible.
View More
PINGYUAN SIHUAN PHARMACEUTICAL CO., LTD
Contact:+86-531-55696072
Address:#2766,yinxiu Road, Economic Development Zone, Pingyuan Country, Shandong Province, China.
Contact:+8613400661290
Address:No 908,Kangwan Rd, Liuyang Economic
QINGDAO TAOSIGN INTERNATIONAL TRADE CO.,LIMITED
Contact:+86-0532-82683616
Address:RM1402, Doublestar Seacoase 7#, No. 5 Guizhou Road, Qingdao, Shandong, China
shandong lukang animal & plant drug trading co.,ltd.
Contact:15853765968
Address:floor 9, lukang ,jingying building,#173,taibai building west road,jining city,shandong,china
Weifang Jahwa Chemical Co.,Ltd
Contact:0086-536-8897731,8897730
Address:No.5166 East Dongfeng Street,Weifang,Shandong,China
Doi:10.1016/j.jphotochem.2016.10.003
(2017)Doi:10.1002/hlca.19490320418
(1949)Doi:10.1039/b205842a
(2003)Doi:10.1016/j.bmc.2015.06.060
(2015)Doi:10.1002/anie.200503898
(2006)Doi:10.1016/j.jcat.2012.07.020
(2012)
