Hollow glass desiccant and production method thereof

Abstract

The invention discloses a hollow glass desiccant comprising the following raw materials in parts by weight: 100 parts of sepiolite, 1-4 parts of hydrochloric acid, 2-15 parts of aluminum sulfate, 0.1-0.5 part of cation surfactants and 1-5 parts of sodium hexametaphosphate. The grain size of a finished product is 0.5-5 mm, the stacking density is 0.65-0.8 g / ml, the temperature rise is not less than 30 DEG C, the static water adsorbance is not less than 20%, the static nitrogen adsorbance is not greater than 0.2%, the abrasion rate is not greater than 0.2%, and the water content is not greater than 2%. The performance of the product in the invention is obviously higher than that of the hollow glass desiccant in the prior art, the product has higher adsorption capacity on water and also effectively reduces the adsorption capacity on oxygen molecules and nitrogen molecules, and the manufacturing cost is greatly reduced. The invention also discloses a production method of the hollow glass desiccant.

Description

technical field [0001] The invention relates to a desiccant, in particular to a hollow glass desiccant and a production method thereof. Background technique [0002] Insulating glass doors and windows with built-in special desiccant are energy-saving products that were first used and developed by the construction industry in developed countries in Europe and the United States in the 1950s and 1960s. By the end of the last century, its usage rate in European and American countries reached about 80%. However, my country began to gradually use and promote it at the end of the 20th century. At the beginning of the 21st century, the Chinese government legislated in the construction industry and enforced that doors and windows in commercial and residential buildings must use insulating glass doors and windows, and hollow glass doors and windows Place a special desiccant for insulating glass in it. This has promoted the rise and rapid development of the insulating glass desiccant ...

AI Technical Summary

Problems solved by technology

But whether it is 4A molecular sieve or 3A molecular sieve, their production cost is relatively high, and they also pollute the environment

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