®208GelActi- High Performance Rheology Modif ier for High Solids Slurries

Tailings

MineralsI N T E R N A T I O N A L , L L C ®

ActiveI n t e g r i t y. I n n o va t i o n . Te a m w o r k . E xe c u t i o n .

Packaging

Acti-Gel® 208 is supplied in powder form.

PerformanceActi-Gel® 208 is a thixotropic material that suspends particles, reduces segregation, and dramatically stabilizes high solids slurries. During mixing and transport, �ow is greatly enhanced due to Acti-Gel’s® shear-thinning behavior. After the tailings are deposited in the tailings dam, Acti-Gel® 208 prevents segregation which enables better particlepacking, denser beds, and improved water recovery .

Bene�ts:• Improves �owability and settling properties

• Enables higher solids slurry

• Minimizes plugging; safe and easy start-ups

• Reduces water consumption and down time

• Decreases erosion and corrosion e�ects

• Reduces pressure loss along the pipe line; increases �ow rate.

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3 4 Love to n Ci rc l e, S u i te 1 0 0 , S p a r k s, M a r y l a n d 2 1 1 5 2Te l : 8 0 0 - 2 5 8 - 2 6 0 0 * Fa x : 8 1 5 - 3 3 3 - 2 9 9 7

i n fo @ a c t i ve m i n e ra l s. co m

Product DescriptionActi-Gel® 208 is a low-dose rheology modi�er and anti-settling agent that stabilizes mixtures, provides superior aggregate suspen-sion, and dramatically improves the performance of slurries. When fully dispersed, Acti-Gel® 208 particles form a unique lattice ‘microstructure’ that maintains a homogeneous suspension enabling a reduction in segregation and bleed. Under shear, �ow conditions are enhanced resulting in improved pump-ability. Please see optimizing recommendations below.

Acti-Gel® 208 is a highly puri�ed Mg-aluminosilicate made from a patented process. It is non-swelling and shear stable in both low and high salt environments and between pH 2-13.

®208GelActi-

Tailings

MineralsI N T E R N A T I O N A L , L L C ®

ActiveI n t e g r i t y. I n n o va t i o n . Te a m w o r k . E xe c u t i o n .

Product Data Sheet, Rev. Sep 2014

Recommendations and advice concerning dosages, application, performance, and use is provided in good faith, based on our testing, experience, and knowledge of the product under normal conditions. All claims based on performance are believed to be accurate. No guarantee, either expressed or implied, is made with reference to the infringement of any patent. These values represent typical data from samples taken from production batches. They are not considered to be speci�-cations. Results may vary depending upon equipment and procedures. The user of these materials is responsible for determining its suitability for theirapplication with di�erent materials and actual site conditions.

Acti-Gel® 208 should be added to the suction end of the transfer pump (after thickener), using a recommended dry dosage range of ~0.05% to ~0.10% (total dry weight material basis). Please contact your local representative for recom-mendations. Acti-Gel® 208 must be mixed with su�cient high shear to become fully dispersed with the constituents.

Guidelines for Use

Like any additive, the performance of Acti-Gel® 208 is dependent on mix proportions and �neness of materials. Active Minerals International, LLC (AMI) is available to help with formulations and reccomendations in the customer’s lab.

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3 4 Love to n Ci rc l e, S u i te 1 0 0 , S p a r k s, M a r y l a n d 2 1 1 5 2Te l : 8 0 0 - 2 5 8 - 2 6 0 0 * Fa x : 8 1 5 - 3 3 3 - 2 9 9 7

i n fo @ a c t i ve m i n e ra l s. co m

Formulated to produce thixotropic slurries, Acti-Gel® 208 provides excellent suspension properties while maintaining pumpability over long distances. Elimination of segregation prevents clogging in the lines.

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60.1 % Solids 0.05% Acti-Gel®, 15 hrs Downtime 62.1% Solids No Acti-Gel®, 17 hrs Downtime

At “Typical” Solids Level – Acti-Gel® 208 exhibited signi�cantly lower Pump Discharge Pressures than the sample with-out Acti-Gel® 208. The Acti-Gel® 208 stabilized slurry had approximately 50% lower pressures. Also a very consistent and smooth �ow rate and pressure were observed with the Acti-Gel® 208 stabilized slurry.