公开(公告)号：US4547346A

公开(公告)日：1985-10-15

申请号：US627565

申请日：1984-07-03

申请人： Renato Guerriero ,  Giuseppe Veronese ,  Agostino Baradel ,  Luigi Rivola

发明人： Renato Guerriero ,  Giuseppe Veronese ,  Agostino Baradel ,  Luigi Rivola

IPC分类号： C01G3/10 ,  C01G28/00 ,  C22B3/26 ,  C22B30/04

CPC分类号： C01G28/001 ,  C01G3/10 ,  C22B3/0009 ,  Y02P10/234

摘要： Process for the separation of arsenic from acid aqueous solutions containing arsenic and other metals characterized in that the acid aqueous solution is placed in the contact with water-immiscible organic solvent which extracts the arsenic, the arsenic being reextracted from the organic solvent by means of a countersolvent.

摘要翻译： 用于从含有砷和其他金属的酸性水溶液中分离砷的方法，其特征在于将酸性水溶液与提取砷的与水不混溶的有机溶剂接触，砷通过有机溶剂从有机溶剂中再提取 反倾销

公开(公告)号：US4701311A

公开(公告)日：1987-10-20

申请号：US791105

申请日：1985-10-24

申请人： Agostino Baradel ,  Renato Guerriero ,  Giuseppe Veronese

发明人： Agostino Baradel ,  Renato Guerriero ,  Giuseppe Veronese

IPC分类号： C01G28/00 ,  C22B3/26 ,  C01B27/00

CPC分类号： C22B3/0005 ,  C01G28/001 ,  Y02P10/234 ,  Y10S204/13

摘要： A process for the selective extraction of arsenic from acid solutions containing other metals comprising treating the solutions with polyhydroxybenzene derivatives in organic diluent; mono- and di- alkyl derivatives containing at least four alkyl carbon atoms of pyrocatechol and pyrogallic acid are particularly contemplated for use in the removal of arsenic from strongly acid copper-containing electrolyte solutions.

摘要翻译： 一种从含有其它金属的酸溶液中选择性提取砷的方法，包括用有机稀释剂中的多羟基苯衍生物处理溶液; 包含焦儿茶酚和焦rog allic酸的至少四个烷基碳原子的单烷基和二烷基衍生物特别考虑用于从强酸性含铜电解质溶液中除去砷。

公开(公告)号：US4737350A

公开(公告)日：1988-04-12

申请号：US44899

申请日：1987-03-26

申请人： Agostino Baradel ,  Renato Guerriero

发明人： Agostino Baradel ,  Renato Guerriero

IPC分类号： C22B30/04 ,  C01G28/00 ,  C22B3/00 ,  C22B3/26 ,  C01B27/00

CPC分类号： C01G28/001 ,  C22B3/0009 ,  Y02P10/234 ,  Y10S204/13

摘要： A process for separating arsenic from acid aqueous solutions containing arsenic and other metal ions. The process involves bringing the acid aqueous solution into contact with a water-immiscible organic diluent consisting of hydrocarbons, alcohols or their mixtures, in which there is dissolved as solvent at least one polyol. The solvent thereby extracts the arsenic, which is then re-extracted with a counter-solvent.

摘要翻译： PCT No.PCT / EP86 / 00437 371日期1987年3月26日 102（e）1987年3月26日PCT申请1986年7月23日PCT公布。 出版物WO87 / 00867 日期：1987年2月12日。一种从含有砷和其他金属离子的酸性水溶液中分离砷的方法。 该方法包括使酸水溶液与由烃，醇或其混合物组成的与水不混溶的有机稀释液接触，其中作为溶剂溶解至少一种多元醇。 溶剂因此提取砷，然后用反溶剂再次萃取。

公开(公告)号：US4976864A

公开(公告)日：1990-12-11

申请号：US418227

申请日：1989-10-06

申请人： Agostino Baradel ,  Gino Della Penna ,  Silvio Gulinelli ,  Mario Valdiserri ,  Andrea Robertiello

发明人： Agostino Baradel ,  Gino Della Penna ,  Silvio Gulinelli ,  Mario Valdiserri ,  Andrea Robertiello

IPC分类号： C02F1/58 ,  C02F1/02 ,  C02F1/469 ,  C02F3/28 ,  C02F9/00

CPC分类号： C02F9/00 ,  C02F1/025 ,  C02F1/469 ,  C02F2101/36 ,  C02F3/286 ,  Y10S210/908

摘要： Process for the treatment of aqueous effluents from the production of epoxy resins, which effluents contain as their main impurities chlorohydrins, glycidol, isopropyl alcohol and sodium chloride, which process comprises the following steps:(a) hydrolytic treatment of the effluent under alkaline conditions, until the effluent's content of epichlorohydrin in reduced down to values of about 75 ppm, and the effluent's glycidol content is reduced to values lower than about 4,000 ppm;(b) removal of about 90% of sodium chloride from the hydrolyzed effluent; and(c) anaerobic digestion of the hydrolyzed, sodium chloride-deprived effluent, after preliminary dilution, neutralization and integration with nitrogen and phosphorus sources.The (b) step can be carried out by means of a process of concentration of the effluent, in order to cause sodium chloride to precipitate, or by submitting the same effluent to a treatment of electrodialysis.