A hydrophilic group. In the sulfate ester, an oxygen link is provided,
forming the acid group of many commercial surface-active agents in which a
little sulfonic acid and much long-chain sulfate ester are linked to fatty
acids and oils. Examples of reagents used in mineral processing include
Lissapol LS (sodium salt of oleic acid chloride and p-anisidine sulfonic
acid); and Aerosol (sulfosuccinic acid diester). Pryor, 3
Light green to yellow vaselinous variety of sulfur-containing bitumen.
Tomkeieff
Elements that occur preferentially in minerals free of oxygen (or fluorine
or chlorine); i.e., mostly as sulfides, selenides, tellurides, arsenides,
antimonides, intermetallic compounds, native elements, etc. This group
includes some of the chalcophile and some of the siderophile elements as
classified by Goldschmidt. AGI
a. Sulfureted hydrogen, H2 S ; stinkdamp. Fay
b. One of the elements present in varying quantities in most bituminous
coal as part of the ash and deleterious to coke for steelmaking.
BCI
c. An orthorhombic mineral, 128[S] ; native sulfur; dimorphous with
rosickyite; soft; yellow; around volcanic fumaroles, in salt deposits
associated with limestone, gypsum, and anhydrite; a source of elemental
sulfur. Also called brimstone.
d. A mining term for iron sulfide (pyrite) in coal seams and with zinc
ores in Wisconsin and Missouri. Formerly spelled sulphur.
e. See:crude sulfur
a. An accumulation of sulfur in the form of iron pyrites sometimes found
in coal seams, often hard enough to break the bits on cutting machines.
BCI
b. A concretionary form of the sulfide of iron occurring as both pyrite
and marcasite. This material seems to crystallize or grow within the coal
as a result of the action of waters bearing sulfuric acid acting upon
compounds of iron. This iron is then taken into solution as iron sulfates
and subsequently converted to sulfides that form into the sulfur ball.
Kentucky
An inverted container, holding a high concentration of sulfur dioxide gas,
used in die casting to cover a pot of molten magnesium to prevent burning.
ASM, 1
Pac. The undecomposed metallic ores, usually sulfides. Chiefly applied to
auriferous pyrites. Concentrate and sulfide are preferable. An old syn.
for sulfide. Obsolete.
The group VI elements sulfur, selenium, tellurium, and oxygen.
Thick sulfur-bearing deposits may be worked by a network of tunnels and
general caving. The bed is extracted in a series of thick slices,
horizontal if the dip is great, or parallel to the dip if it is moderate.
See also:Frasch process
Pyrite, often roasted for its sulfur. Webster 2nd
Mercapto thiol. -SH, the monovalent radical. Pryor, 3
a. Mud and silt deposited from flowing water. Hammond
b. Scoria on molten metal in the ladle. Webster 3rd
A two-stage compressor in which the low-pressure cylinder is horizontal
and the high-pressure cylinder is vertical. It is a compact compressor and
is driven by a belt, or it can be directly connected to an electric motor
or diesel engine. Lewis
See:sulfur
An isometric mineral, Cu3 VS4 ; forms a series with
arsenosulvanite; bronze yellow; at Burra Burra, South Australia; and
Mercur, UT.
A cutting list with details of reinforcing bars. Hammond
A black lubricating oil of 540 degrees F (282 degrees C) fire test, used
as a heavy tempering oil and for waterproofing cement.
a. An excavation made underground to collect water, from which it is
pumped to the surface or to another sump nearer the surface. Sumps are
placed at the bottom of a shaft, near the shaft on a level, or at some
interior point. Lewis
b. An excavation smaller than and ahead of the regular work in driving a
mine tunnel or sinking a mine shaft. Webster 3rd
c. A hole sunk in a drift to a depth of 2 to 3 yd (1.8 to 2.7 m).
Hess
d. To undercut coal preliminary to placing a shortwall machine in position
for cutting along the working face. Sometimes called a sumping cut.
e. To test the load in depth. Gordon
f. See:cut
g. To drill diagonally. Mason
h. See:jib in
i. A pit or basin in which the returns from a borehole are collected and
stored and in which the cuttings settle before recirculating the
cuttings-free drilling fluid. Long
j. A cellar under a drill floor. Long
In bituminous coal mining, one who shovels up accumulations of coal, rock,
dirt, and refuse at the bottom of a shaft and loads it into buckets that
are hoisted to the surface or an upper level for dumping. DOT
a. A shothole drilled diagonally. Mason
b. In bituminous coal mining, a person who oils and greases coal-cutting
machines. Also called machine sumper. DOT
A waterproof fuse for use in a sump. Standard, 2