The weighted ore pigments are mainly iron red, iron yellow, and iron black. Their properties and production methods are as follows:

1. Performance. 1. Light and heat resistance. The color does not change even when exposed to strong sunlight. Due to structural limitations, it is stable within a certain temperature limit. After the temperature limit is exceeded, the color begins to change. As the temperature increases, the degree of change becomes more and more obvious. The counterweight becomes red when it exceeds 130 degrees Celsius, becomes deep red when it exceeds 300 degrees Celsius, and becomes deep red when the weight exceeds 400 degrees. This is only the temperature limit of ordinary heavy mineral pigments, and now many companies have products with better performance.

2. Weather resistance: weather conditions such as atmospheric cold and heat, droughts and floods have very little influence on the pigment, and it has good weather resistance, so it is also widely used outdoors. 3. Other properties: very stable in polluted gases such as hydrogen sulfide, carbon dioxide, sulfur oxide, hydrogen chloride, and nitrogen oxide. It is insoluble in water, various mineral oils, vegetable oils, ethers, esters, ketones and other organic solvents, and there is no penetration.

2. The manufacturing process of counterweight ore. The traditional manufacturing method has dry method, namely high temperature firing method. The main raw materials are limited to iron sheet and iron filings. The production cycle is long, the energy consumption is large, and the production cost is high. The other is the wet method, that is, the acid solution oxidation method. Grind at room temperature for 40 minutes, wash with water, clean with alcohol, filter by suction, and dry to obtain precursor powder, and then pyrolyze to obtain nano-scale counterweight red product. This room temperature solid-phase synthesis method is simple to operate, cheap raw materials, and easy to obtain. The diameter is easy to control, and it is a new method to prepare nano-scale iron sulfide powder.

The above is the introduction of the performance and production method of the heavy mineral pigment. For more information, please click our official website, thank you for reading.