Process for the preparation of active-mass of improved quality f

Details Process for the preparation of active-mass of improved quality f Process for the preparation of active-mass of improved quality f

1990-08-13

1991-11-05

Lechert, Jr., Stephen J.

Solid material comminution or disintegration

Processes

Application of solids to material

241 23, B02B 502

Patent

active

050625748

ABSTRACT:
The invention relates to a process for the preparation of positive or negative active mass of lead accumulators by using the active mass separated from production-refuse plates and/or the active-mass wastes produced during production.
According to the invention when positive active mass is prepared then positive active mass, while when the negative active-mass is prepared then negative active-mass, previously dried and heat-treated at a temperature of 500.degree. to 600.degree. C. and optionally ground, is fed into a lead-powder producing mill, together with metal lead, in an amount of at most 80% by mass calculated for the mass of the metal lead, and the product thus obtained is led into the plate production.

REFERENCES:
patent: Re33133 (1989-12-01), Kiessling
patent: 4092462 (1978-05-01), Giess et al.
patent: 4554228 (1985-11-01), Kiessling
patent: 4760001 (1988-07-01), Nann et al.
patent: 4902591 (1990-02-01), Clerici et al.

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