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AdvantageTM Brownstock Defoamers

Advantage brownstock defoamers are a family of proprietary products designed to remove entrained air and improve drainage in Kraft pulp mill brownstock washing systems, including drum and Chemi washers, deckers and filtrate systems.

The defoamers provide superior foam control and improve drainage and washing performance, allowing pulp mills to reduce shower flow and soda losses. These products also help mills increase filtrate solids going to the evaporators. This can improve stock cleanliness and reduce energy costs.

Commercial applications confirm that Advantage brownstock defoamers provide a number of benefits:

  • Increased production
  • Improved fiber quality
  • Reduced operating costs
  • Reduced silicone carryover
  • Increased liquor solids
  • Improved drainage and washing

Advantage defoamers contain no dibenzodioxin (DBD) or dibenzofuran (DBF) or their precursors, nor any ethylene bis-stearamide (EBS), an ingredient often associated with pulp mill and paper mill deposits. They also contain no APEs, NPEs or animal derivatives and contain less than 1% VOCs per EPA Method 24.

Automated Feed and Dosing

Solenis offers automated feed and dosing equipment specifically designed for use with Advantage brownstock defoamers. The equipment typically consists of positive displacement piston or diaphragm pumps. It’s recommended because it automatically adjusts chemical feed to compensate for process variances.

Recorded Results

Customers using Advantage brownstock defoamers report benefits like reduced costs and water usage. One pulp mill using the Advantage BN3397 brownstock defoamer experienced benefits including:

  • Reduced annual defoamer spend by $256,000
  • Reduced shower water use by 7 percent
  • Reduced silicone in the washed pulp by 35 ppm

More Information

To learn more about Advantage brownstock defoamers, or if you would like free technical advice on your specific foam control challenge, ask a Solenis expert today.


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