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1.发明公开
公开(公告)号：EP2867388A4
公开(公告)日：2016-01-27
申请号：EP13808609
申请日：2013-06-26
CPC分类号： C25B1/26 , B01D5/0057 , C01B7/03 , C01B7/0737 , C25B1/02 , C25B1/46 , C25B9/10 , C25B15/08 , Y02E60/368
摘要： The present invention relates to an electrochemical process for generating or recovering hydrochloric acid from metal salt solutions such as acidic metal salt solutions and saline solutions. The process is useful for treating acidic salt solutions that are waste products from mineral processing or other industrial processes such as metal finishing, water softening, water treatment, reverse osmosis, electrodialysis, coal seam gas extraction, shale gas extraction and shale oil extraction, to generate high purity hydrochloric acid, metal salts and recycled water that may be re-used in the industrial process. An apparatus for performing the electrochemical process is also described.
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2.发明公开CELLULOSE PHOSPHATE POWDER PRODUCT AND PROCESS FOR MANUFACTURE THEREOF, AND APPLICATION TO REMOVAL OF CONTAMINANTS FROM AQUEOUS SOLUTIONS 审中-公开磷酸纤维素粉末产品AND METHOD FOR FOR从水溶液中污染的去除生产和应用
公开(公告)号：EP2670711A4
公开(公告)日：2017-03-29
申请号：EP12742299
申请日：2012-02-01
发明人： BLUNN ADAM JUSTIN
IPC分类号： C02F1/28 , B01D39/00 , B01J20/22 , B01J20/24 , B01J20/30 , C02F101/10 , C02F101/20 , C02F101/22 , C07H1/02 , C07H1/04 , C08B5/00 , C08H8/00 , C08J3/14 , C08L1/16
CPC分类号： B01J20/24 , B01J20/3085 , B01J2220/4825 , B01J2220/4831 , C02F1/286 , C02F2101/103 , C02F2101/106 , C02F2101/20 , C02F2101/206 , C02F2101/22 , C08B5/00 , C08H8/00 , C08J3/14 , C08J2301/16 , C08L1/16
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3.发明公开PROCESS AND APPARATUS FOR PRECIPITATING CATIONIC METAL HYDROXIDES AND THE RECOVERY OF SULFURIC ACID FROM ACIDIC SOLUTIONS 审中-公开方法和设备沉淀阳离子金属氢氧化物和硫酸从溶液回收
公开(公告)号：EP2389461A4
公开(公告)日：2016-02-24
申请号：EP10733137
申请日：2010-01-20
CPC分类号： C25B1/04 , C25B1/00 , C25B1/20 , C25B1/22 , Y02E60/366
摘要： An electric current is passed through an acidic solution containing one or more soluble metal salts in an electrolytic cell divided by an anion exchange membrane. The acidic solution is fed into the cathode compartment whereby the passage of electric current at sufficient voltage causes the generation of hydrogen at the cathode. This gives rise to a localized very highly polarized region at the cathode resulting in a localized effective high relative pH. This causes the metal cation species to precipitate as a hydroxide (or oxide) species and electroadsorption/electrocoagulation causes the finely precipitated hydroxide (or oxide) species to adhere to the cathode. Electrodialytic transport of the liberated acid anions across the anion exchange membrane selectively removes the acid anions. Oxygen and hydrogen ions are formed by hydrolysis as the counter-reaction at the anode. Hydrogen ions combine with the anions to regenerate sulfuric acid. This enables the recovery of cationic metal species within a solution in which the bulk pH would not ordinarily allow hydroxide formation, while simultaneously regenerating sulfuric acid. The anion exchange membrane keeps the acid anion separate from the metal and acid solution so as to enable the concentration and recovery of sulfuric acid.
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