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In many industrial processes, foam generation in strong alkaline environments presents a common and challenging issue. For instance, in cleaning, textile auxiliaries, and certain chemical synthesis stages, high concentrations of sodium hydroxide, potassium hydroxide, and similar substances can exacerbate foam formation and stabilization. This foam reduces effective equipment capacity, impairs heat and mass transfer efficiency leading to prolonged processing times, and may cause overflow, material waste, product quality issues, and even safety concerns. Conventional defoamers often saponify or degrade rapidly in strong alkaline conditions (pH >12), losing their effectiveness, which necessitates frequent replenishment, increasing costs and resulting in inconsistent performance.
Addressing this core challenge, the Chemi Tech R&D team has developed a series of high-performance strong alkali-resistant defoamers. Our solution goes beyond simple formulation; it is based on in-depth research into foam stabilization mechanisms under high alkalinity. The product core utilizes specially structured polyethers and hydrophobic particles whose chemical bonds are designed to withstand alkali attack, maintaining structural integrity and activity even under high-temperature and high-alkali conditions. They rapidly penetrate and spread across foam lamellae, effectively reducing local surface tension, promoting drainage and thinning of the liquid film until rupture, while maintaining dispersion within the system for long-term foam suppression.
Our application procedure is straightforward: First, clients can provide a sample of their working fluid. Our technical engineers will conduct complimentary foam evaluation tests to accurately recommend a suitable product grade and initial dosage (typically 0.1%-0.5%). Second, we recommend adding the defoamer in a single dose at an appropriate stage of the production process (e.g., during initial batching or before the foam-prone stage) with adequate dispersion. For continuous processes, metered addition can be used to maintain effective concentration. Finally, we offer follow-up support to assist in dosage optimization for the best cost-performance ratio.
A representative case involves a manufacturer of metal surface treatment chemicals. Their product suffered from severe foam overflow in a high-temperature, strong alkaline degreasing tank, requiring multiple daily additions of a standard defoamer with minimal effect. After switching to Chemi Tech's Strong Alkali-Resistant Defoamer, with an initial dosage of only 0.3% under the same process conditions, foam was quickly eliminated. The tank surface remained clear even after 72 hours of continuous operation without intermediate topping-up. This not only resolved overflow-related cleanliness and safety issues but also increased the effective utilization rate of the degreasing tank by approximately 15%, while reducing overall chemical additive costs. The customer highly appreciated the product's persistent efficacy under extreme conditions.
Choosing Chemi Tech Strong Alkali-Resistant Defoamer means choosing reliable production assurance. We are committed to providing targeted foam control solutions, helping you overcome production bottlenecks in alkaline environments and achieve smoother, more economical, and safer operations.
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
