PetroChina Obtained Invention Patent Authorization: "A Method for Preparing α-Alumina Carrier, a Silver-loaded Catalyst and Its Preparation Method"

Securities Star News, according to Tianyancha APP data, China National Petroleum Corporation (601857) has recently been granted a new invention patent. The patent is titled “Preparation Method of α-Alumina Support, Silver-Loaded Catalyst, and Its Preparation Method,” with application number CN202210791265.2, and it was granted on March 20, 2026.

Patent Abstract: The invention discloses a preparation method for an α-alumina support, including the following steps: a) mixing “platelet” α-Al2O3 seed crystals with hydrated alumina, inorganic compounds containing B, and additives to obtain a dry powder mixture, where the additives include one or more inorganic compounds containing Ca, Sr, Ba, Si, Zn, Zr, and Y; b) adding a binder and an extrusion aid to the dry powder mixture for wet mixing, then forming, drying, and calcining to obtain the α-alumina support. This method can produce α-alumina supports with both “non-platelet” and “platelet” microstructures.

Since the beginning of this year, China National Petroleum has been granted 429 new patents, an increase of 38.83% compared to the same period last year. According to the company’s 2025 semi-annual financial report, the company invested 9.899 billion yuan in R&D in the first half of 2025, a year-on-year increase of 2.51%.

Based on Tianyancha big data analysis, China National Petroleum Corporation has invested in 1,301 companies, participated in 369 bidding projects; there are 111 trademark records and 47,690 patent records; additionally, the company holds 168 administrative licenses.

Data source: Tianyancha APP

The above content is compiled by Securities Star based on publicly available information, generated by AI algorithms (Wangxin Algorithm Backup 310104345710301240019), and does not constitute investment advice.