LEWATIT® VP OC 1026

Summary

Product identification

• Product Name: LEWATIT® VP OC 1026
• Type: Solvent impregnated resin (SIR)
• Matrix: Macroporous styrene DVB copolymer
• Active Ingredient: Di-(2-ethylhexyl)phosphonic acid (D2EHPA)
• Functional Group: D2EHPA
• Structure: Macroporous
• Delivery Form: H⁺
• Appearance: White, opaque

Applications

LEWATIT® VP OC 1026 is suitable for:

• Removal of ferric and zinc from chromium(III) containing acid baths
• Adsorption of zinc and ferric from sulfuric acid streams
• Recovery of rare earth metals and indium from acidic solutions

Advantages

• No organic solvent dilution required
• No phase separation problems
• Simple equipment with smaller plant footprint
• Very low leakage of removed cations

Operating Limits

• Stability pH range: 0-4
• Stability temperature range: 1-60 °C
• Operating temperature: max. 60 °C
• Operating pH range during exhaustion: 1-4
• Bed depth for single column: min. 1000 mm
• Max. pressure loss during operation: 250 kPa

Feed Water

• Cation selectivity order from sulfate containing solutions: VO₂⁺ > UO₂²⁺ > Fe³⁺ > In³⁺ > Al³⁺ > Pb²⁺ = Zn²⁺ > Ca²⁺ > Cd²⁺ = Mn²⁺ > Cr³⁺ > Mg²⁺ > Co²⁺

Regeneration

• HCl regeneration concentration: approx. 10 wt. %
• H₂SO₄ regeneration concentration: approx. 15 wt. %

Mechanical / Hydraulic

• Uniformity coefficient: max. 1.9
• Range of size for >90 vol% of all beads: 0.315-1.6 mm
• Bulk density for shipment (+/- 5%): 590 g/L
• Density: approx. 0.97 g/mL
• Water retention (delivery form): approx. 27-34 wt. %

Electrical

No information available in the extract.

Chemical

• Exposure to alkaline media (e.g., sodium/potassium hydroxide or sodium/potassium carbonate) should be avoided.
• The active ingredient might be washed out if pH is not maintained below 4.

Storage and Handling

• Storage temperature range: -20 - +40 °C
• Recommended storage: Above freezing point of water, under roof, dry, out of direct sunlight.
• Packaging stability: Limited to 24 months under recommended storage conditions.
• Resin density is lower than water; tends to float. Covering the resin layer with inert material (e.g., LEWATIT® IN 42) is recommended.
• Frozen resin: Should not be mechanically handled; thaw gradually at ambient temperature before handling or use.
• Safety: Observe safety data sheet. Strong oxidants can cause violent reactions.

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror