The production of humic acid flake products usually involves the following steps:
Raw material selection: Select high-quality humus soil or peat as the main raw material, which is rich in organic matter and minerals.
Pretreatment: Wash, crush and dry the raw materials to remove impurities and moisture to ensure the smooth progress of subsequent processing.
Extracting humic acid: Extracting humic acid by chemical or physical methods, common methods include alkaline extraction and acid precipitation. This process usually involves mixing the raw materials with alkaline solution, heating and stirring to extract humic acid.
Concentration: The extracted humic acid solution needs to be concentrated, usually by evaporation or membrane separation technology to remove excess water and impurities and increase the concentration of humic acid.
Drying and molding: The concentrated humic acid solution is spray-dried or freeze-dried to form flake or granular products. In this process, other additives can be added as needed to improve the performance of the product.
Packaging and storage: Finally, the dried humic acid flake products are packaged and stored in a dry and cool place to extend their shelf life.
This process can be adjusted according to different production equipment and processes to meet market demands and product specifications.
