my country’s bismuth oxide (bismuth trioxide) industrial structure is unbalanced and there is room for improvement in the proportion of high-end products

Bismuth oxide (bismuth trioxide) is a bismuth compound that appears as a light yellow powder, turns orange when heated, and turns reddish brown when heated continuously. Bismuth oxide exists in α-type, β-type, γ-type and 2 non-stoichiometric phase crystal forms. The main crystal phases are monoclinic phase α-Bi2O3, tetragonal phase β-Bi2O3, bulk cubic phase γ-Bi2O3, and planar cubic phase δ -Bi2O3.

As an inorganic compound, bismuth oxide is widely used in electronics, chemical industry, glass manufacturing, inorganic synthesis, catalysts, coatings, high-temperature superconductors, medicine and other fields. Electronics is the most widely used field of bismuth oxide, accounting for about 60% of its applications. In the electronic field, bismuth oxide is mainly used to produce varistors, thermistors, picture tubes, zinc oxide arresters, etc.; in the chemical industry, bismuth oxide can be used to manufacture chemical reagents, bismuth salts, etc.; in the coating field, bismuth oxide can be used to produce Anti-corrosion coatings, automotive coatings, etc.

According to the “2023-2028 China Bismuth Oxide (Bismuth Trioxide) Industry Market In-depth Research and Development Prospects Forecast Report》 shows that bismuth oxide has a wide range of application fields. With the recovery of the global economy, the market size of bismuth oxide is growing. In 2022, the global bismuth oxide market size will be approximately 230 million yuan. It is expected that the global bismuth oxide market will maintain growth from 2023 to 2027, with an average annual compound growth rate of more than 4.0%. Bismuth oxide manufacturers include 5N Plus, Shepherd Chemical, Hunan Jinwang Bismuth Industry, Hunan Rare Energy New Materials, Hunan Xiangyun Fine Chemicals, etc.

According to different application fields, bismuth oxide can be divided into industrial grade and electronic grade. Among them, electronic grade bismuth oxide has higher purity requirements, usually above 99.5%. In recent years, thanks to the development of the electronics industry, the market demand for electronic grade bismuth oxide has been continuously released. . Relying on the advantages of raw materials, my country has become a major producer of bismuth oxide. However, due to technical limitations, the structure of my country’s bismuth oxide industry is unbalanced. The proportion of high-end bismuth oxide such as high-purity bismuth oxide, ultrafine bismuth oxide, nano-bismuth oxide, and electronic-grade bismuth oxide is still relatively high. Low, the market needs to be further optimized in the future.

Bismuth oxide is usually obtained as a by-product of the smelting of copper and lead ore, and can also be obtained from bismuth iron ore. my country is rich in bismuth resources, and its bismuth ore output has long ranked first in the world. In 2022, my country’s refined bismuth output will be about 15,000 tons. Bismuth oxide is an inorganic compound of bismuth. The bismuth market is well supplied, which is beneficial to the development of the bismuth oxide industry.

The production process of bismuth oxide is divided into wet process and pyrometallurgical process. Among them, pyrometallurgical process consumes a lot of energy and causes high pollution. In the context of stricter environmental protection policies, pyrometallurgical process will be gradually eliminated by the market. Industry analysts said that bismuth oxide has a wide range of applications and the market size will grow in the future. my country is rich in bismuth resources, and its output of bismuth oxide ranks among the top in the world. However, the structure of my country’s bismuth oxide industry is unbalanced, and high-end bismuth oxide accounts for a low proportion. Against the background of demand upgrading, the bismuth oxide industry structure needs to be optimized urgently.