Kairui Chemical, formally known as Shandong Kairui Chemical Co., Ltd., is a company specializing in the production of specialty chemicals such as industrial cleaning agents. Located in the Xuecheng Chemical Industrial Park in Zaozhuang City, Shandong Province, the company occupies approximately 100 acres. Established in 2015 with a registered capital of 128 million yuan, it is an environmentally conscious enterprise integrating R&D, production, and sales of comprehensive high-end specialty chemicals. These include water quality stabilizers, textile printing and dyeing auxiliaries, papermaking auxiliaries, oilfield auxiliaries, water-based coating auxiliaries, concrete admixtures, daily chemical products, and electronic chemicals.
TEL: +86-632-3671188
E-mail: [email protected]
ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China

Kairui Chemical Co., Ltd. is a professional manufacturer of silicone defoamers. Our defoamers deliver remarkable defoaming performance in aqueous systems, characterized by low dosage requirements, broad operating temperature range, excellent acid and alkali resistance, rapid defoaming action, and high efficiency. They are non-toxic, non-corrosive, and free from adverse side effects, particularly showing no detrimental impact on aquatic microorganisms and causing no membrane damage. They disperse readily in water, exhibit excellent compatibility with liquid products, and do not cause oil separation or emulsion breakdown. These environmentally friendly water treatment defoamers are readily dispersible in water and compatible with liquid formulations. For more information, please contact us directly.
TEL: +86-632-3671188
E-mail: [email protected]
ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China

Concrete admixtures come in many different types, including water-reducing agents, retarders, and accelerators. Prices vary by product. Interested buyers may contact us directly. We are a professional manufacturer of concrete admixtures.
Zaozhuang Kairui Water Treatment Co., Ltd.
TEL: +86-632-3671188
E-mail: [email protected]
ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China

The use of reverse osmosis chemicals must adhere to operational specifications based on chemical type (scale inhibitors, dispersants, cleaning agents, biocides, reducing agents, etc.) and system conditions. The core principles are “precise dosing, scenario adaptation, and parameter control.” Specific methods are as follows: Scale inhibitors are typically added continuously via metering pumps before the security filter in the reverse osmosis system, with a concentration of 3-8 mg/L. Dosage must be calculated based on feed water hardness and recovery rate to ensure effective protective film formation on the membrane surface. Cleaning agents require offline circulation cleaning: First identify contamination type (colloidal, metal oxides, etc.), select corresponding agent type (acidic/alkaline), dilute to 1%-3% concentration, then circulate within the membrane system via a cleaning pump for 1-3 hours at 20-40°C. After cleaning, flush with permeate water until neutral pH is restored. Disinfectants are categorized as oxidative and non-oxidative. Oxidative agents (e.g., sodium hypochlorite) are dosed intermittently to maintain residual chlorine at 0.1-0.5 mg/L. Non-oxidative agents (e.g., isothiazolinone) require periodic shock dosing at 50-100 mg/L, followed by 30 minutes of circulation. Reduction agents must be added before the security filter to neutralize residual chlorine in the feed water to <0.1 mg/L. Dosage should be adjusted based on residual chlorine concentration, typically 1-3 mg/L, to prevent excessive residue that could impair membrane performance. Prior to use, verify compatibility of all chemicals with membrane materials. Regularly monitor parameters such as permeate flux and pressure differential to optimize dosing protocols.

The function of ceramic dispersant produced by Karui Chemical:

KR-908 is primarily used as an additive in industries such as magnetic materials, electronic ceramics, papermaking, alumina ceramics, and household ceramics. Adding ceramic dispersant KR-908 during the grinding process of slurry significantly reduces the viscosity of the processed material, facilitating material processing while ensuring stable viscosity of the dispersed slurry. It completely volatilizes during product calcination, leaving no impact on the physical and chemical properties of the final product. This product generates minimal foam, is non-toxic, non-corrosive, and classified as non-hazardous.

For more information, please visit:
http://www.krchemical.com/03-kr-908.htm