Deep within the causticization workshop of a chemical plant in southern China, massive reactors were silently besieged – thick alkali liquor surfaces were smothered under layers of churning foam, resembling an unyielding 'white fortress'. Chief Engineer Zhang frowned; this foam severely hindered the crucial reaction between alkali and lime milk, crippling efficiency. Worse, it plagued subsequent clarification and evaporation stages. Impurities trapped in the foam slowed settling, resulting in inconsistent lye concentration, compromised purity, and frequent, costly shutdowns for foam-over cleanup. 'Each reactor cleanout drains manpower and resources, not to mention the delayed orders,' Zhang noted, his logbook filled with records of downtime and lost yield.
The turning point came after an industry symposium. Chemi Tech's engineering team delved into the site, dissecting the complex foam genesis in causticization: the trifecta of high temperature, extreme alkalinity (NaOH concentrations exceeding 20%), and colloidal impurities formed the perfect storm. Conventional defoamers either rapidly de-emulsified or were 'consumed' by the harsh alkali, proving futile.
Addressing this core challenge, Chemi Tech developed a defoamer specifically engineered for caustic soda (NaOH) production via the causticization process. Its power lies in uniquely tailored molecular architecture: specially modified, high-efficiency silicone polyethers grant exceptional resistance to strong alkali and chemical stability. It remains active under the brutal conditions of high heat and extreme alkalinity, swiftly penetrating foam lamellae for instant bubble breaking and persistent foam suppression. Crucially, it integrates flawlessly with the causticization system, leaving no oily residues or introducing new contaminants, ensuring crystal-clear, high-purity lye.
When Chemi Tech's defoamer was first introduced into Zhang's reactors, the transformation was immediate. The churning 'white fortress' collapsed within minutes, revealing a stable, clear reaction interface. Clarification accelerated markedly, evaporation efficiency jumped by nearly 15%, and unplanned shutdowns due to foam-over became a relic of the past. Lye concentration stabilized within tight tolerances, significantly boosting first-pass yield. 'Now, our causticization line can finally 'breathe.' The benefits of stable operation far exceeded projections,' Zhang wrote in his monthly report. Chemi Tech Causticization Defoamer: Liberating your process from foam barriers, the unseen guardian of efficiency and quality in NaOH production.
Guangzhou Chemi Tech New Material Co., Ltd.
Address : No. 3 Road, Lanshan Village, Xiancun Town, Zengcheng District, Guangzhou City
Contact : +86-19820415595(Manager Fang)
Tel : +86-13414362583(Manager Lee)
E-mail : crystal@gzchemitech.com