Method of producing lead paste for batteries

Details Method of producing lead paste for batteries Method of producing lead paste for batteries

1986-06-16

1988-07-19

Terapane, John F.

Compositions

Compositions containing a single chemical reactant or plural...

429188, 429189, 429228, H01M 488, H01M 420, H01M 456

Patent

active

047583720

ABSTRACT:
In order to reduce the duration of the method of producing lead paste for batteries by mixing lead oxide, sulphuric acid, water and possibly conventional additives below a limit temperature with at least partial cooling, acid is first added at substantially the maximum speed possible for distribution in the mix, without causing burning therein, and so quickly that the amount of heat supplied to the mix is greater than the amount of heat which is removed by cooling, and then, when the material being mixed reaches a predetermined operating temperature which is below the limit temperature, the addition of acid is regulated in dependence on constant temperature measurements in the material being mixed, in such a way that the temperature remains at the level of the operating temperature substantially until the end of the operation of adding acid.

REFERENCES:
patent: 1374076 (1921-04-01), Grimditch
patent: 1991314 (1930-03-01), Chamberlain
patent: 3576675 (1968-12-01), Abramson et al.
patent: 4098494 (1978-07-01), Howlett
patent: 4346022 (1982-08-01), Wolcott et al.
patent: 4363742 (1982-12-01), Stone

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