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Rock Fragmentation Method.

Authors
Engelmann-WH; Watson-PJ; Tuzinski-PA; Et Al
Source
Chem Abstr 110:118 105F Sept 25 1990 :
Link
NIOSHTIC No.
10011680
Abstract
A method is described for enhanced rock fragmentation in drilling, cutting, tunneling, and grinding at constant applied mechanical stress, while also prolonging the life of the bits, cutting tools, and grinding media. Water-soluble, high-molecular weight nonionic polymers (e.g., polyethylene oxide) are used in drilling fluids to neutralize the surface charge on the rock, thereby promoting increased drilling (cutting, etc.) performance, resulting in increased penetration rate, extension in tool life, and dust suppression.
Publication Date
19900101
Document Type
PA;
Fiscal Year
1990
NTIS Accession No.
NTIS Price
Identifying No.
PA 4,959,164
NIOSH Division
TCRC;
Source Name
Chem. Abstr. 110:118,105F, Sept. 25, 1990 U.S. Pat. 4,959,164
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