DERAKANE™ Based Solutions for Metal

Processing Industries

Communications

Guy Schneider

Moscow, October 2014

® Registered trademark, Ashland or its subsidiaries, registered in various countries

™ Trademark, Ashland or its subsidiaries, registered in various countries

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Mining Overview

. Main metals recovered: Nickel, Copper, Uranium,

Cobalt, Zinc, Rare Earths.

• Typical Metal Recovery Processes

Smelting

Solvent Extraction (SX)

Electrowinning (EW)

Acid Leaching.

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Mining processes

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Composites Offer Many Advantages As

A Material Of Construction In Mining Operations

• Broad chemical resistance to process chemicals in

metals recovery

• Not subject to galvanic corrosion

• Excellent non-conductive properties for electrolytic

cell area

• High strength to weight ratio

• Easy & quick maintenance

• Ashland resins have over 50 years of proven

performance in corrosion applications

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Typical Composite Applications In

Mining And Metal Processing

• Electrowinning cells

• Electrostatic precipitators

• Extractors

• Duct, fans, and dampers

• Scrubbers

• Fume stacks and stack liners

• Cell covers

• Dust control systems

Storage tank

Settling tanks

Piping

Pumps and pump bases

Cooling towers

Grating, railings & structural

supports

Floor coatings

Reinforced linings on steel

or concrete structures

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Types Of Composites Used In

Mining Applications

• Total structure designed and manufactured with

composite (full FRP)

• DERAKANE™ resin with glass flake applied as

reinforced liner on steel or concrete substrate

• Thermoplastic lined composite

• Polymer concrete (resin, sand, and aggregate

formulation)

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Solvent Extraction (SX) Process

• Allows extraction of metal from oxide form of ore

• Allows economical processing of low grade ore

• First step: Leaching with acid.

• Next step: Vigorously mixed with kerosene based

solvent with organic chemicals to extract minerals.

• Final step: Mixing and settling stage where

minerals is transferred for organic form to aqueous

solution

• Aqueous solution is then transferred to

electrowinning cells for metal recovery

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• Six CCD vessels (75 m dia) with FRP panels and launders.

• Another 12 mixer settlers.

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Large tank (10m

diam, 15m high)

for HCl storage,

made with

Derakane*

470.300.

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Abrasion Resistant Piping

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Composite Applications In

Electrowinning Operation

• Electrowinning cells

• Grating and structural supports

• Electrolytic baths

• Piping

• Spent electrolyte tanks

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Electrowinning House in Africa

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Applications Of Composites In

Smelting Operations

• Electrostatic precipitators

• Duct, fans, and scrubbers

• Grating and structural supports

• Free standing stacks and stack liners inside

concrete chimney

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Case History: Zhuzhou Zinc Smelter

• Largest zinc smelter in China (635K MT of zinc and lead in 2013).

• Acid leach tanks designed by Outotec and fabricated by Zhongfulianzhong (ZFLZ)

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Goro Project, New Caledonia

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Vale Inco Nickel

Newfoundland, Canada

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Long Harbour

64 large diameter tanks

(some as large as 14 m dia x 17 m

tall)

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• Dozens of FRP processing vessels and storage tanks .

• Miles of acid and abrasion resistant piping.

• Six CCD vessels (75 m diameter).

Boleo project Mexico

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MolyCorp

Mountain Pass

• Rare Earth processing facility in CA near Las Vegas.

• Aggressive extractive reagents

Remove rare earth elements from ore

Separate rare earth elements from each other

• Dozens of extraction / separation tanks in hydromet

process

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Keys To Successful Application

• Resin selection

• Design based on type of composite used in

manufacture of equipment

• Clear specifications and detailed operating

conditions

• Quality fabrication

• As with any material of construction inspection of

equipment

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Summary and Conclusions

• FRP has been used successfully for over 50 years

as a corrosion resistant material of construction in a

wide variety of mineral processing applications

• FRP equipment is inherently corrosion resistant to

acid based hydromet processes

• Many applications are better handled by FRP than

metal alloys

• FRP is a more economical choice than metal alloys

or rubber lined steel