Method for the regenerative treatment of mainly clay-bound found

Details Method for the regenerative treatment of mainly clay-bound found Method for the regenerative treatment of mainly clay-bound found

1990-11-28

1992-05-26

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

Selective or differential comminution of mixed or bonded solids

241 24, 241DIG10, 554591, B02C 2300

Patent

active

051159856

ABSTRACT:
A method for regenerating foundry old sand which method combines impact and shearing stress of the sand grains which occurs with simultaneous dust removal. The dust removed by suction contains non-burned bentonite and carbon parts which can be re-used in the same way as the regenerated material of core sand. Environmental pollution and quantities for dumping are drastically reduced.

REFERENCES:
patent: 3312403 (1967-04-01), Zifferer
patent: 3863847 (1975-02-01), Day et al.
patent: 4137675 (1979-02-01), Cina et al.
patent: 4354641 (1982-10-01), Smith
patent: 4436138 (1984-03-01), Kondo
patent: 4566637 (1986-01-01), Deve
patent: 4978076 (1990-12-01), Andrews et al.
patent: 5034035 (1991-07-01), Satmer et al.

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