Sulphide pellet materials
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 23, 1981
Issued Date -
N/A
app pub date -
May 12, 1980
filing date -
Jul 4, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A substantially spherical pellet composed predominantly of lead sulphide which is coated with predominantly zinc sulphide material. The lead sulphide core is from 2-6 mm in diameter and the zinc sulphide coating has a thickness of from 1-3 mm. The weight ratio of zinc sulphide to lead sulphide is from 1.5:1 to 2.5:1.
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