Gaoneng Environment applies for patents related to nano-bismuth powder systems, achieving controllable particle size and morphology of nano-bismuth oxide and short-process preparation.

March 21 News: According to the State Intellectual Property Office, Beijing High Energy Environment Technology Co., Ltd. has applied for a patent titled “Preparation System for Nano Bismuth Oxide Powder.” The application publication number is CN121695800A, the application number is CN202610070821.5, the publication date is March 20, 2026, and the application date is January 19, 2026. Inventors include Zhen He, Yushun Wang, Xingyan Lin, Zhengdong Li, Fuzhu Hou, Wenge Bo, Yang Wang, Xin Xin Ni, Lun Wu, and Meili Wang. The patent agency is Beijing Huixinhe Intellectual Property Agency Co., Ltd., with patent agent Lin Congyuan. The classification codes are B01J19/00, C01G29/00, B82Y40/00.

Patent Abstract: The invention discloses a preparation system for nano bismuth oxide powder, which sequentially includes an arc evaporation unit, a gas-phase reaction and condensation unit, a product collection and processing unit, and an intelligent control unit along the material flow. The core is the gas-phase reaction and condensation unit, which adopts an integrated reaction sedimentation chamber. Through specific structural layout and flow field design, it decouples and precisely controls the gas-phase oxidation of bismuth vapor and the nucleation process of nano particle condensation. It also integrates online oxygen content and temperature monitoring with feedback control systems, enabling controllable preparation of nano bismuth oxide particles with specific size and morphology. The invention achieves short-process, continuous, and precise control of the gas-phase oxidation reaction and nano particle condensation growth process through structural innovation and process reengineering, resulting in high purity and uniform morphology products suitable for high-end electronic ceramics, catalysts, and functional materials.

High Energy Environment was established on August 28, 1992, and listed on the Shanghai Stock Exchange on December 29, 2014. Its registered and office addresses are both in Beijing. The company is a leading enterprise in the domestic solid waste management field, focusing on pollution prevention and control of solid waste, with full industry chain service capabilities.

The industry classification for High Energy Environment is Environmental Protection - Environmental Management - Solid Waste Management, involving concepts such as biomass energy, waste power generation, and medical waste treatment. The company mainly engages in research and application of solid waste pollution control technology, providing system solutions and engineering contracting services across multiple fields.

In 2025, High Energy Environment’s revenue was 14.732 billion yuan, ranking first in the industry, consistent with the industry average and median. The main business components include resource recycling income of 11.899 billion yuan (80.77%), environmental operation services of 1.721 billion yuan (11.68%), and environmental engineering services of 1.112 billion yuan (7.55%). Net profit for 2025 was 1.039 billion yuan, also ranking first in the industry, aligned with the industry average and median.

Recent patent applications by Beijing High Energy Environment Technology Co., Ltd. include:

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