Apparatus for the surface cleaning of quartz-crystal pieces

Cleaning and liquid contact with solids – Apparatus – Sequential work treating receptacles or stations with means...

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134134, B08B 306

Patent

active

044455232

ABSTRACT:
Apparatus for cleaning the surface of small quartz-crystal pieces with aqueous hydrofluoric acid is disclosed wherein the quartz pieces are introduced into a vessel containing a conveying means and conveyed e.g. horizontally in counter-current to aqueous hydrofluoric acid introduced at the opposed end of the vessel. During the washing the quartz pieces are tumbled.

REFERENCES:
patent: 1933609 (1933-11-01), Wagner
patent: 2545239 (1951-03-01), McQuiston, Jr. et al.
patent: 4022638 (1977-05-01), Weet
patent: 4073301 (1978-02-01), Mackinnon

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