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In 2025, the Chinese market for water-soluble rust inhibitors is expected to reach 2.86 billion yuan, representing a year-on-year increase of 19.2%.

In 2025, the Chinese market for water-soluble rust inhibitors is expected to reach 2.86 billion yuan, representing a year-on-year increase of 19.2%.

According to the testing report from the China Industrial Anti-Corrosion Association, a composite system containing benzotriazole and phosphate esters can extend the salt spray test duration for carbon steel from 72 hours to 480 hours. Dynamic electrochemical impedance spectroscopy tests show that the charge transfer resistance value has increased by two orders of magnitude.

Apr 24,2025

China Petrochemical Corporation Applies for a Patent on Catalyst Protective Agents

China Petrochemical Corporation Applies for a Patent on Catalyst Protective Agents

On April 4, 2025, according to information from the National Intellectual Property Administration, China Petrochemical Corporation has applied for a patent titled “Catalyst Protector with Synergistic Effects, and Methods for Its Preparation and Applications,” with publication number CN 119746943 A and an application date of September 2023.

Apr 04,2025

China National Petroleum & Natural Gas has applied for a patent for an ash‑free rust inhibitor and its preparation method, offering superior rust‑resistance.

China National Petroleum & Natural Gas has applied for a patent for an ash‑free rust inhibitor and its preparation method, offering superior rust‑resistance.

According to news released on January 7, 2025, information from the National Intellectual Property Administration indicates that China National Petroleum Corporation has applied for a patent titled “A Zero-Ash Rust Inhibitor and Its Preparation Method,” with publication number CN 119242365 A and an application date of July 2023.

Jan 07,2025

Anhui Chengtai Chemical Technology Has Obtained a Patent for a Modified Metal Sulfonate Rust Inhibitor Additive

Anhui Chengtai Chemical Technology Has Obtained a Patent for a Modified Metal Sulfonate Rust Inhibitor Additive

On October 30, 2024, Anhui Chengtai Chemical Technology Co., Ltd. was granted a patent titled “A Modified Metal Sulfonate Rust‑Inhibiting Additive,” with authorization announcement number CN 113444557 B. The patent is produced by mixing oil‑soluble sulfonic acid with carboxylic acids or carboxylic acid esters, then subjecting the mixture to saponification with alkali metal hydroxides or alkaline earth metal hydroxides, significantly increasing both metal content and rust‑inhibiting performance—particularly yielding substantial improvements in salt spray test results.

Oct 30,2024

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Chengtai Chemical

Tel: +86-563-5203888

Mobile phone: +86-13656227225

Email: panhuanzhi@vip.qq.com

Email: huanzhipan@gmail.com

Address: No. 10, Diecui West Road, Xuanzhou High‑Tech Development Zone, Xuancheng City, Anhui Province

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