When incubated with the lowest clinical value of methylcobalamin 200pg/ml (Figure 6(c)) the cells are elongated rather than cobblestone; they have a reduced cytoplasm and a rougher cell
surface and they appear to have lost their ability to form a monolayer in comparison to the control Caco-2 cells (Figure 6(a)).
Finely ground raw ores are entrained to the stirred vessel, where the ores are sufficiently mixed with the reagent, then fed into a rougher cell
. With the effect of reagents, valuable minerals are made hydrophobic and the others hydrophilic.
Feed for the cell is pulled after the second rougher cell
ina row of Wemco 3,000-[ft.sup.3] roughers.
A multistage flotation circuit, comprising 24 rougher cells
, 12 scavenger cells and 10 column cells produces copper concentrate with gold and silver byproduct metals.
Some 10,480 [m.sup.3]/h of cyclone overflow reports to the flotation circuit which comprises four rows of nine 128 [m.sup.3] capacity rougher cells
and two rows of six 128 [m.sup.3] cleaner scavenger cells.
The final stage in the production process includes a series of rougher cells
, where the pulp is chemically treated to separate the copper, molybdenum and silver from the gangue.
These 50 [m.sup.3] units are operating as rougher cells
Sulphide flotation begins in five banks of mechanical rougher cells
for a total retention time of 25 mm.
This is conducted in closed circuit with the cyclone overflow reporting back to the rougher cells
The cyclone undersize from mill 1, 2, and 3 each feed two banks of 15 rougher cells
. Mill 4 feeds three banks of 10 cells.
Cyclone overflow at 75% passing 76 microns and at 30% solids flows to two parallel banks of flotation cells each consisting of two 28.3 [m.sup.3] pre-rougher cells, four 8.5 [m.sup.3] rougher cells
and three 8.5 [m.sup.3] second cleaners.
With the pyrite rougher cells
available, a plumbing rearrangement was in order.