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1.发明授权Method of hydrating a battery plaque impregnated with metal nitrate in a hydroxide solution and subsequent recovery of nitrate byproduct as crystals 失效水化氢氧化物溶液中硝酸金属电池的电池方法以及硝酸盐的后续恢复作为晶体的方法
公开(公告)号：US3647586A
公开(公告)日：1972-03-07
申请号：US3647586D
申请日：1970-01-22
Applicant: ESB INC
Inventor： BERGUM BERNARD C , SVARDAL PER S
CPC classification number: H01M4/28
Abstract: A BATTERY PLAGUE IMPREGNATED WITH A METAL NITRATE IS HYDRATED BY BEING SUBMERGED IN A HOT, CONCENTRATED HYDROXIDE SOLUTION TO PRODUCE A METAL HYDROXIDE DEPOSIT IN THE PLAGUE AND A HYDROXIDE SOLUTION CONTASINING A NITRATE BYPRODUCT. THE HYDROXIDE SOLUTION CONTAINING THE NITRATE BYPRODUCT IS TRANSMITTED TO A CRYSTALLIZATION TANK WHERE UPON COOLING NITRATE CRYSTALS ARE FORMED AND RECOVERD. THE SOLUTION REMAINING AFTER CRYSTALLIZATION MAY BE RETURNED TO THE HYDRATION TANK. HYDROXIDE SOLUTION MAY BE ADDED TO MAINTAIN THE HYDROXIDE CONCENTRATION IN THE HYDRATION TANK AT A SUBSTANTIALLY UNIFORM LEVEL. BOTH BATCH AND CONTINUOUS PROCESSING MAY BE USED.
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