Abstract

A sealed dissociation and desulfurization reactor comprises a desulfurization reaction tank body, a stirring mechanism, a feed inlet (1), a discharge outlet and a heating apparatus, wherein the stirring mechanism comprises a stirring transmission mechanism and a stirrer. The desulfurization reaction tank body is a horizontal rotary drum device. The reactor can enhance the desulfurization effect and reduce costs.

IPC Classes  ?

• C22B 13/06 - Refining
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• F27B 7/18 - Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being movable within the drum

Abstract

The present invention discloses a combined negative plate for electrolyzing, comprising main block of electrolytic negative plates and conductive connecting pieces, which is characterized at that the electrolytic negative plates of main block comprises an electrolytic motherboard, several electrolytic unit plates and connecting members thereof, wherein the electrolytic motherboard has a planar construction and its top-edge is connected with the conductive connecting structures; the connecting members is installed onto the surface of the electrolytic motherboard; the electrolytic unit plates are frame-plates at least having frames suitable for device of coating plaster and removing plaster, whose surface area is smaller than that of the electrolytic motherboard; they are movably installed to the electrolytic motherboard by connecting members and assembled in a large-scale, dismountable combined negative plate for electrolyzing. The combined negative plate for electrolyzing according to the present invention can satisfy mechanical operation of the negative plate for electrolyzing during coating plaster and removing plaster, and also can realize large-scale industrial manufacture of wet-electrolyzing and improve productive yield, and increase current efficiency and lower current consumption at the same time.

IPC Classes  ?

• C25C 7/02 - ElectrodesConnections thereof
• C25C 1/18 - Electrolytic production, recovery or refining of metals by electrolysis of solutions of lead
• C25B 9/04 - Devices for current supply; Electrode connections; Electric inter-cell connections

Abstract

A method for implementing full cycle regeneration of a waste lead acid battery is provided, the method includes the following steps: in step (1) the waste lead acid battery is smashed and separated so as to obtain grid lead, diachylon, plastic and waste electrolyte; in step (2) the obtained diachylon after being dried is positioned into an airtight desulphurization reactor for desulphurization and deoxidation, wherein lead sulfate and the lead dioxide both in the diachylon react to obtain lead monoxide (PbO) and sulphur trioxide (SO3); in step (3) the obtained lead monoxide is reduced by solid phase electrolysis in a wet way so that the lead monoxide is reduced into sponge lead.

IPC Classes  ?

• H01M 10/54 - Reclaiming serviceable parts of waste accumulators