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PULP & PAPER

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Although many successful research studies have confirmed the advantages of magnesia based alkalis in the bleaching process, the innovative transition has been slow.

 

Sodium hydroxide, aka caustic soda, is frequently used as the strong alkali to collaborate with hydrogen peroxide to achieve optimum brightness during the bleaching process.  Although this works, there are often negative byproducts to this process.

 

Magnesia based compounds (namely magnesium hydroxide and magnesium oxide) have shown to accomplish the same goal with added benefits including decreased COD (chemical oxygen demand), decreased DCS (dissolved colloidal substances) and greater strength properties of the bleached pulp.  Mg(OH)2 used as the alkali is also known to dissolve less necessary organic material. 

 

Garrison Minerals, the producers of AlkapHix®,   continues to serve on the front lines of this transition with custom equipment, manufacturing of high-quality Mg(OH)2,  and dosing consultancy.

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Advantages of                            , by Garrison Minerals

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EXPERT SERVICE

Garrison Minerals is prepared to see your application and independent circumstance through until the end.  Access to an Alkaphix™  professional is just a phone call away and available 24/7.  Site visits and material/equipment trials are also provided.

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QUALITY EFFLUENT

Mg(OH)2 has shown to produce a cleaner bleach effluent and reduce the need for excess treatment leading to additional chemical savings.

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COST SAVINGS

  • Opportunities to reduce peroxide usage.

  • less magnesia charge is required to reach a given brightness as compared to other alkalis thus reducing bleaching chemical costs.

  • Historically, magnesia products have a more stable price structure as compared to other alkali options.

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LOWER SOLUBILITY

Because of the lower solubility, magnesium hydroxide provides a constant source of alkalinity given various charges, allowing the pH values to remain relatively constant during the bleaching process.

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SAFETY

Magnesium hydroxide is non-hazardous and non-corrosive when used properly.  It requires little precautionary containment or special handling.  In the event of excess or spillage, Mg(OH)2 can be disposed of quickly and easily without environmental impact.  

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CUSTOMIZATION

All AlkapHix products are application-specific.  Equipment, dosing, and more can be customized to meet the needs of the end-user.