Reduction of nickel sulfide stones in a glass melting operation

Details Reduction of nickel sulfide stones in a glass melting operation Reduction of nickel sulfide stones in a glass melting operation

1993-08-19

1995-03-28

Jones, W. Gary

Glass manufacturing

Processes

Fining or homogenizing molten glass

651359, 501 72, C03B 516, C03C 3078

Patent

active

054012872

ABSTRACT:
Material selected from the group consisting essentially of molybdenum, arsenic, antimony, bismuth, copper, silver, potassium dichromate and iron chromite, is added during the manufacture of soda-lime-silica float glass to reduce the occurrences of nickel sulfide stone defects. Material is added in sufficient amounts such that the resulting glass is at least 0.010 wt. % selected material. In a preferred embodiment of the invention, molybdenum is added in the form of sodium molybdate such that the resulting glass is at least 0.015 wt. % molybdenum.

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