1. About bentonite
Bentonite is a non-metallic mineral with montmorillonite as main component. It has been used in more than 100 departments of 24 fields of industry and agriculture, with more than 300 products, so people call it “universal clay”. As a mixed mineral, bentonite has high adsorption and ion exchange capacity. In agriculture, application of bentonite is to improve soil structure and increase soil fertility. Bentonite is usually white or gray, in form of powder or granular.
2. Bentonite reserves of China
Exploration research shows that the bentonite reserves of China rank first in the world, with complete range and wide distribution. It covers 26 provinces and cities, both production and export volume rank among the top in the world. According to incomplete statistics, the annual bentonite production of China has exceeded 3.5 million tons, and the total reserves account for 60% of the world’s total. So far, the cumulative proven reserves have exceeded 5.087 billion tons, and the proven reserves are more than 7 billion tons. More than 100 proven bentonite deposits are mainly concentrated in Xinjiang, Guangxi, Inner Mongolia and three northeastern provinces. Among them, the bentonite reserves in Xinjiang and Bukesaier Mongolian Autonomous County have exceeded 2.3 billion tons, they are the two largest bentonite mining areas of China.
3. The mechanism of bentonite used in compound fertilizer
Bentonite is mainly composed of clay mineral of aluminosilicate montmorillonite, it has strong properties of cation exchange and adsorption, so it can act as an important additive in compound fertilizer production. Bentonite can be used to adjust the ratio of nitrogen, phosphorus, potassium and other elements in fertilizers, and improve the effectiveness of fertilizers. Moreover, the hygroscopicity and expansibility of bentonite enable it to quickly form balls in production of compound fertilizer and increase production; Its adhesiveness helps to increase the balling rate and reduce the amount of returned materials; And its drying performance and water absorption ensure the stability of water content of the product.
4. Combination of bentonite and compound fertilizer
Although bentonite can be used in production of compound fertilizer, it cannot directly produce compound fertilizer. Usually, bentonite needs to be processed or synthesized before being made into fertilizer that can provide nutrients. For example, bentonite can be mixed with nitrogen, phosphorus and potassium to make compound fertilizer granules. In addition, bentonite can also be mixed with other additives during production of compound fertilizer to improve the effectiveness and stability of fertilizer.
5. Resumen
Bentonite plays an irreplaceable role in modern agriculture with its unique physical and chemical properties. Application of bentonite in agriculture can not only improve soil fertility and soil environment, but also promote crop growth and improve the quality of agricultural products. It is one of the important materials for achieving sustainable development of agriculture and ecological circular agriculture. With the advancement of agricultural technology and the improvement of people’s requirements for the quality of agricultural products, the application prospects of compound fertilizer bentonite will be broader.
Since the particle size of bentonite has an important influence on application effect in agriculture and other industries. For example, when used in compound fertilizer, it usually needs to be ground into powder so that it can better mix into the fertilizer, and through we can obtain bentonite particles with different fineness to meet different application requirements.
Qingdao Epic Powder Machinery Co., Ltd. is a manufacturer specializing in the production of powder processing equipment. Its products include:
– Mill: ball mill, molino de rodillos, jet mill, vibration mill and impact mill etc.
– Classifier: four series of air classifiers: HTS, ITC, MBS and CTC.
– Modifier: pin-mill modifier, turbo-mill modifier and three-roller modifier.
– Auxiliary equipment: control cabinet, dust collector and bucket elevator etc.
– Customers can also customize according to their needs, one customer one design.
Among them, ball mill, roller mill and classifier have excellent performance for grinding and classifying of bentonite.
If you have relevant needs or questions, please contact staff from Epopeya de Qingdao directly, they are always at your service.
Below are photos of products from Qingdao Epic for your reference.
