20r/Min Mineral Processing Plant Grinding Ball Mill For Vegetable Oil Leaching

132kw Bleaching Earths Batch Ball Mill MQ3245 For Oil Industry

Before vegetable oils can be safely consumed, they have to be processed in order to remove impurities, both for commercial and health purposes. A process known as bleaching involves the use of bleaching earths or clays. The term itself is misleading as color removal is not the most important purpose of the bleaching process. Vegetable oils contain contaminates that adversely affect the performance, appearance and taste of the oil. In order for it to be used in edible applications, the oil must meet high quality standards that require the removal of various impurities.

Bleaching earths are generally composed of up to three types of clay minerals: bentonite, attapulgite and sepiolite. The minerals act as absorbers with capacity being dependent on mineralogical structure and properties, such as surface area, particle size distribution, porosity and surface activity. Bentonites are a soft stone with the capacity to absorb substances dissolved in water and other liquids. The minerals have been formed over time due to the natural adaptation of volcanic ash. Bleaching earths are found in mines around the world, including North America, South America, Europe, the Middle East and Asia.

Bleaching earths need to grind into fine powder and use for oil industry, so Hengyang Industry is specialized in produce, design and install ultra-fine powder grinding. Batch Ball Mill is key Equipment for grinding in wet process.

Batch Ball Mill Technical Details