Driven by global “dual carbon” goals and green manufacturing principles, the HEDP chelating agent industry faces new opportunities and challenges. Grounded in the present and focused on the future, Kairui Chemical has established a clear roadmap for future development, committed to leading the HEDP industry toward a new journey of green, efficient, and innovative growth. In terms of green development, Kerry Chemical will further increase investment in green production technology R&D, optimize production processes, reduce energy consumption and pollutant emissions during manufacturing, and develop more biodegradable, lower-toxicity green HEDP products to meet the green development needs of downstream industries. In technological innovation, Kairui Chemical will focus on researching HEDP applications in emerging fields such as new energy, new materials, and environmental protection. It will develop

A robust technical team serves as the core driving force behind a company's innovative development. Since its inception, Kairui Chemical has consistently prioritized the cultivation and recruitment of technical talent, assembling a technical team anchored by industry veterans such as Sun Baoji and Kan Xiaodong. This “think tank,” leveraging its profound expertise and extensive industry experience, has provided strong support for Kairui Chemical's HEDP product innovation and technological breakthroughs. As Technical Director of Kairui Chemical, Sun Baoji possesses over 20 years of R&D experience in fine chemicals. He has led multiple national and provincial-level research projects and conducted in-depth studies on optimizing the molecular structure and enhancing the performance of HEDP. The novel HEDP derivatives developed by his team have achieved significant breakthroughs in treating wastewater from new energy battery recycling. Kan Xiaodong brings unique insights into

For downstream enterprises, the stable supply of HEDP chelating agents directly impacts production continuity. Any disruption could lead to production line shutdowns and significant losses. Kaier Chemical deeply understands the importance of supply chain stability and has established a comprehensive supply chain assurance system covering the entire chain—“raw materials, production, logistics, and after-sales service”—to ensure the stable supply of HEDP products.

In the HEDP chelating agent industry, longstanding issues such as inconsistent product quality and ambiguous performance metrics have caused significant challenges for downstream enterprises in product selection and application. As a specialized, sophisticated, distinctive, and innovative enterprise within the sector, Kairui Chemical has proactively assumed the responsibility of leading standardized industry development. Leveraging its deep technical expertise and stringent quality control, the company has participated in formulating multiple HEDP-related industry standards, establishing the benchmark for HEDP quality through its proven capabilities. Kairui Chemical has established internal control standards that far exceed industry norms. For instance, while the industry typically employs simple titration methods for HEDP content detection—which carry significant margin of error—Kairui Chemical utilizes high-performance liquid chromatography (HPLC). This approach limits detection error to within ±0.5%, ensuring precise compliance for every batch. For product stability testing, Kerry Chemical simulates diverse application scenarios, subjecting HEDP products to stability experiments under extreme conditions such as high temperatures, high salinity, strong acids, and strong alkalis. Its test data provides crucial reference for industry standard formulation.

Some oilfields in China operate under extreme conditions, where high temperatures and high salinity pose significant challenges to equipment maintenance and crude oil production. A Xinjiang oilfield had long been plagued by reservoir temperatures of 92°C and a salinity level of 8.5%, resulting in frequent scaling in the circulating water system. This not only caused persistently high gas injection pressure but also drastically reduced oil recovery efficiency, leading to annual economic losses exceeding ten million yuan due to equipment failures and production capacity losses.

In the fine chemicals industry, beyond product strength, service capability truly demonstrates a company's depth. Guided by the business philosophy of “Achieving Customer Success, Win-Win Development,” Shandong Kairui Chemical extends the value of its

As a benchmark enterprise in the HEDP chelating agent field, Kairui Chemical's core competitiveness stems from sustained R&D investment and innovative breakthroughs. Founded in 2015, the company has established a technical team anchored by core R&D personnel including Sun Baoji and Kan Xiaodong, forming a complete innovation chain spanning fundamental research to industrial applications.

From deep within oil fields to textile workshops, from boiler systems to reverse osmosis membrane modules, Kairui Chemical's HEDP chelating agent is permeating every corner of industrial production as an “all-rounder.” This success stems from its deep insight into the diverse needs of different industries.

As “green manufacturing” emerges as a key driver for high-quality industrial development, Shandong Kairui Chemical has demonstrated its commitment through concrete actions—not only securing a spot on the 2025 Zaozhuang Green Manufacturing List but also embedding environmental principles throughout the entire lifecycle of its HEDP chelating agent.

In industrial circulating water systems, the formation of each scale particle can trigger a chain reaction leading to reduced equipment efficiency and soaring energy consumption. Shandong Kairui Chemical's

Blending is more appropriate, with standalone use (as the primary agent) being rare.

Using Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium Salt monomer alone cannot resolve complex water systa issues and is economically inefficient. Below is a detailed explanation of why blending is the superior choice and how to blend. Why is standalone use of EDTMPS monomer not recommended?

In the water treatment industry, the cost of using HPAA in combination with other agents is almost always lower than using HPAA alone.

This is not because HPAA itself is inexpensive, but because the “synergistic effect” generated through combination significantly enhances overall cost-effectiveness.

PESA, as a high-performance green water treatment agent, has standardized packaging and storage requiraents to ensure product stability and safe usage.

Below are common packaging and storage guidelines for PESA:

1. Stability under Extreme Temperature Conditions

This compound maintains molecular structural stability across an extreme temperature range from 150°C to -20°C. Its unique ether chain structure confers exceptional conformational flexibility, enabling the active group to maintain optimal orientation at varying temperatures. This characteristic makes it the preferred water treatment agent for specialized environments such as geothermal and polar regions.

1. Innovative Molecular Structure Design

PAPEMP's molecular structure innovatively integrates three functional units: polyamino, polyether, and phosphonic acid groups. This design endows it with h3 chelating capacity, excellent water solubility, and a unique spatial configuration. The ether bonds in the molecule provide flexible segments, enhancing spatial adaptability; multiple amino groups confer pH buffering capability. This sophisticated balanced design forms the molecular foundation for PAPEMP's exceptional performance, enabling it to maintain highly stable and efficient operation even under complex water conditions.

Characteristics and Applications of Polyamino Polyether Methylene Phosphonic Acid

1. Molecular Structure and Chemical Properties

PAPEMP possesses a unique dendritic molecular structure, featuring a core backbone composed of alternating amino and ether bonds, with multiple phosphonic acid groups attached peripherally. This three-dimensional configuration endows the molecule with exceptional chelating capacity, enabling a single molecule to simultaneously bind multiple metal ions. The incorporation of ether bonds significantly enhances molecular flexibility and water solubility, ensuring excellent dispersion stability across varying water conditions. Nitrogen and oxygen atoms within the molecule jointly form multiple coordination centers, creating exceptionally stable metal complexes.

1. Severe Challenges Facing Reverse Osmosis Membrane Systems

Modern reverse osmosis systems encounter increasingly complex water quality issues during operation. High recovery rate operation leads to a sharp increase in contaminant concentration on the membrane surface, and traditional scale inhibitors often struggle to address the complex scenario where multiple scaling substances coexist. This necessitates the development of new treatment chemicals with more comprehensive protective functions.

In industrial water treatment, scaling raains one of the core challenges affecting systa efficiency and safety. As water resources grow increasingly scarce, increasing the concentration ratio of circulating water systas has become a key measure for water conservation and aission reduction. However, this simultaneously significantly elevates scaling risks, particularly for difficult-to-treat calcium phosphate scale, zinc scale, and organic phosphate scale. Traditional scale inhibitors often prove inadequate under the daanding conditions of high concentration ratios, high hardness, and high alkalinity. This has spurred the development of multifunctional scale inhibitors featuring unique macromolecular structures, which have revolutionized scale inhibition technology through their exceptional dispersing capabilities.

The primary applications of   Polyamino Polyether Methylene Phosphonic Acid

I. Challenges in Treating Complex Industrial Systas

Modern industrial water systas often face multiple challenges simultaneously, including high hardness, high turbidity, and high corrosion. Traditional single-function treatment agents struggle to meet comprehensive protection requiraents. The aergence of polyamino polyether-based methylenediphosphonic acid compounds offers a novel holistic solution for such complex systas.