Rio Tinto Alcan | Specialty Aluminas

Product Rage	Application	Produced	Characteristics
ActiGuard D AA400G	Desiccant / Dehydration	Canada	ActiGuard D and AA400 G are utilized for dehydration in a number of applications for both gas and liquid streams where the presence of H₂O is considered harmful.
ActiGuard Claus ActiGuard S	Claus Catalyst	Canada	ActiGuard Claus provides sulfur removal with high macroporosity activated alumina to prevent the loss of activity due to pore blockage of glossy carbon and condensed sulfur build up. The macroporosity coupled with engineered mesopore structure maximizes catalytic activity and guarantees excellent sulfur conversion rates in all standard and sub dewpoint Claus plant configurations.
ActiGuard TBC	TBC Removal	Canada	ActiGuard TBC’s surface chemistry and density provide two functions in the production of styrene. It removes 5 – 20 ppm of the inhibitor, TBC allowing polymerization to begin. Dehydration is also provided removing 100 – 200 ppm of H₂O.
ActiGuard HCl	HCl Removal	Canada	ActiGuard HCl is a promoted activated alumina product providing high maximum chloride removal per cubic foot . The high HCl and H₂O uptake capacity proved the highest downstream equipment protection and extended run times. This product can be utilized in many HCl removal applicatins.
ActiGuard HF	HF Removal	Canada	ActiGuard HF removes residual HF and organic fluorides from your alkylation unit. It is designed specifically to allow rapid diffusion of HF to the interior of the pellets to provide for the highest possible adsorption capacity. The improved diffusion rate increases efficiency and provides complete fluoride removal from your process stream. It is also well suited as a dry scrubbing agent for environmental control applications. It can be used to reduce fluoride emissions from industrial processes such as brazing and welding.
ActiGuard PC	Polar Compond Adsorption	Canada	ActiGuard PC600 and ActiGuard PC650 provide adsorption of polar organic compounds, including oxygenated hydrocarbons, nitrogen based compounds and mercapatans.
ActiGuard H₂O₂	Hydrogen Peroxide	Canada	ActiGuard H₂O₂ is used to maintain the quality of the working solution in two ways. Firstly by regeneration of side reaction products such as tetrahydroanthraquinone epoxide. Secondly by adsorption of polar degradation products.
ActiGuard AAFS50	Arsenic Removal Storm Water Remediation Industrial Waste Streams	Canada	ActiGuard AAFS50's high arsenic capacity and low cost make it the most economical adsorption route for arsenic removal. Single pass use and lanfil disposal, passes both TCLP and California WET. AAFS50 has proven efficient in remediation applications including groundwater site clean ups and storm water protection where adsorption of metals including arsenic, zinc, silica, copper, lead and selenium need to be reduced. It has also proven useful in phosphate and nitrate reduction.
ActiGuard Fluorograde	Fluoride Removal	Canada	ActiGuard Fluorograde is an adsorbent of metals including fluoride from potable water. Regeneration is normally used to operate at the most cost efficient levels. Fluorograde is used to simultaniously lower fluoride and arsenic to acceptable levels in one treatment.
AA100 AA101 AA400	Catalyst Carrier / Refractory	Canada	Rio Tinto Alcan Activated Alumina is used as a substrate or carrier for catalysts requiring high porosity and strength. It can be supplied in various forms including ActiGuard 100 and ActiGuard 101 powders, AA400 pellets or AA400G granules. ActiGuard AA100 and AA101 are also used in the manufacture of low or no cement castable refractories.