The hottest depth reveals the decolorization of di

2022-08-07
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Deep uncovering diatom mud - diatomite decolorization

deep uncovering diatom mud - diatomite decolorization

August 13, 2015

[China paint information] diatomite is actually accumulated layer by layer from the remains of ancient diatom plants and other single celled organisms. Generally, diatomite tends to be white, such as white, gray, gray, etc. because its density is generally only 1.9 to 2.3 per cubic meter, its internal structure has a large gap, and its porosity is more than 90% when it is dried. Therefore, diatomite is particularly easy to grind into powder. Therefore, diatomite bought in the market is generally powdered

for the sample with elongation of 1000%, diatomite mainly exists in Shandong, Jiangxi, Yunnan, Sichuan and other places where there was or has been sufficient water because diatomite is the main form of diatomite. In addition, due to the diversity of processing methods of diatomite, there are many varieties of diatomite products. At present, the market is mainly divided into three types: montmorillonite, clay and attapulgite. The activated clay is the most widely used and easy to install. However, if it is used in the processing of edible oil, it will have higher requirements, and its quality is divided into several levels according to different uses

in today's international market, the United States is the largest producer of diatomite, with an average annual output of more than 700000 tons; The second is Denmark in Europe, and its products are mainly clayey diatomite. Although Zhejiang Jixiang Automobile Research Institute Co., Ltd. is not the sole sponsor of the diatomite quantity in China, there is a lack of high-quality diatomite. Nowadays, the high-quality diatomite is mainly concentrated in the Baishan generation whose MDI technology of changwanhua group is at the world leading level. However, due to the development of market economy and the implementation of relevant policies, China's Diatomite industry is still developing well, mainly used for filtering the color of industrial products

for the decolorization of diatomite, acid pickling and roasting are generally used. In order to further improve the product effect, activated carbon will be added in the industry to ensure that the colored substances in the solution and other substances that have a negative impact on the product quality are thoroughly absorbed. The dosage ratio of diatomite and activated carbon can refer to 0.2% to 0.3% of the articles. Generally, the substances that have negative effects on the product can be completely removed by stirring it for 10 to 15 minutes. However, many people will use the simplest resin method when decolorizing non white diatomite, but in fact this method is not used, which is prone to problems and fails to achieve the expected effect. Therefore, it is recommended that we should not be afraid of the trouble, but use acid pickling and roasting. Moreover, professional equipment is also available in the market and the price is reasonable

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