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PROLITE
PLASTICS LTD.
SULPHURIC ACID SCRUBBING TOWER FOR HYDROMETALLURGICAL GOLD
REFINING
| Description: |
10' dia. x 52' high
Scrubber |
| Contents: |
Sulphuric Acid Gas |
| Corrosion Liner: |
Polypropylene |
| Structural Resin:
|
Polyester |
| Construction: |
1/2" thk. filament
wound shell
1/2" thk. hand lay up top and bottom |
Concentrated
Sulphuric Acid Scrubbing Tower for Nevada Gold Refinery
When German Engineering Company
Lurgi AG came to North America for the design and fabrication of
their 10 ft. x 52 ft. high Packed Tower Scrubber for Newmont Gold
Nevada, they chose Prolite Plastics Ltd. to do the job.
Using a Filament Wound PP/FRP
Body, the tower was built in three sections, joined together and
shipped in one piece. The choice of the AGRU PP-R sheet allowed
Prolite to bond to the FRP structure and withstand the rigorous
temperature of 167°F. and still allow the mechanical strength of
the structure to withstand the liquid loading of High
Concentration Sulphuric Acid collecting on the four-stage
distribution and packing internals.
Particularly critical on this
project was the method chosen to support the all-Thermoplastic
Internals at high temperature. Prolite supplied steel tubes
filled with foam to keep H2SO4 from permeating and forming an
explosive mixture, then bonded to the O.D. of the supports with
Polypropylene Tube welded and sealed.
All the structural supports
penetrated the FRP outer wall using the Filament Wound body for
all structural requirements at temperature in this rigorous
earthquake zone and wind load area.
The scrubbing tower has been in
operation since 1993 and the in-house research and testing
compiled by Prolite serves as an excellent model of Dual Laminate
vessel operation at high temperature service conditions.
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© Prolite Plastics Ltd, Feb. 28,
2000
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