SODIUM ALUMINATE SOLUTION
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Alkaline Coagulant
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Hardness Reduction
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Paper manufacturing,
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Water and waste water treatment
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Catalyst
Applications
- Charge Neutralization
- Coagulation
- Liquid-solids Separation
- Toll Manufacturing
- Wastewater Treatment
- Water Clarifications
Features
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Alkaline Coagulant
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Hardness Reduction
Uses
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Paper manufacturing,
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Water and waste water treatment
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Catalyst
Product Applications & Benefits
Applications
- Charge Neutralization
- Coagulation
- Liquid-solids Separation
- Toll Manufacturing
- Wastewater Treatment
- Water Clarifications
Benefits
Sodium aluminate was introduced to the paper industry over 40 years ago. Its acceptance as an excellent wet end additive grew extensively in Europe and the U.S. paper making operations. Sodium aluminate was found to be very effective when used in conjunction with other cationic sources, such as alum, to optimize and improve wet end paper machine operations.
Simply stated, sodium aluminate is an alkaline form of aluminum which has been dissolved in caustic. Aluminum, because of its amphoteric nature, can be easily dissolved either in an acid or alkaline medium. Aluminum dissolved in sulfuric acid forms aluminum sulfate, or alum, and aluminum dissolved in caustic forms sodium aluminate. Sodium aluminate possesses an anionically charged alumina particle.
Sodium aluminate performs two basic functions in the paper maker process. One of these is primarily a chemical function which is to furnish a portion of the alumina required for sizing. Second function is best considered a physical function of coagulation and retention. System conditions created by these two reactions and the reaction products are the basis for the benefits provided by sodium aluminate.
Other benefits from sodium aluminate usage are:
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Improved strength and durability
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Cleaner machine system
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Reduced foam
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Reduced corrosion
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