Novel drying agent

Abstract

The invention belongs to an inorganic micropore new-material drying agent. The novel drying agent is a silicate A-type molecular sieve which has the diffracting strength value I of more than 75 but less than or equal to 100 on the 110 surface at an angle of 10 degrees of the 2 theta angle of the XRD diffracting peak . Besides the properties of the glass drying agent in a 3A-type molecular sieve, the inorganic micropore new-material molecular-sieve drying agent prepared by new chemical modification technology of the invention has the structural characteristics that the diffracting strength of the peak structure of the 110 surface at an angle of 10 degrees of the 2 theta angle in the XRD diffracting plot is obviously stronger than that of the glass drying agent in a 3A-type molecular sieve, thus, the novel drying agent only absorbs water and little O2 but not N2 and has the property of excellent type selectivity and selective absorption.

Description

technical field [0001] The invention belongs to an inorganic microporous new material desiccant. Background technique [0002] Hollow glass doors and windows are used in transportation tools such as vehicles and ships and fixed buildings, which is a great initiative for human beings to save energy and protect the environment. Especially in today's global energy shortage situation, this energy-saving building material product has broad application and development prospects, especially in my country's energy supply and development lag far behind the speed of economic development. Workers have a living room, and vigorously promote energy-saving building materials and energy-saving buildings, which have important social and economic benefits in the economic construction and development of energy conservation and emission reduction, and green and environmental protection industrial chains. [0003] Reducing the energy consumption of the inner and outer walls of buildings, improvi...

AI Technical Summary

Problems solved by technology

[0008] However, with the improvement of environmental requirements, in the production process of 3A molecular sieve, ion exchange is carried out in the solution, and there are a large amount of K in each link of washing. + Ion pollution, polluting the environment, coupled with the international financial crisis, the prices of various raw materials continue to rise, to overcome the above defects, people have made continuous improvements in the preparation process

[0009] CN1579939A proposes to utilize natural mordenite to replace the preparation method of artificially synthesized zeolite, with natural mordenite as the main component element, but its defect is a large amount of work such as natural mordenite purification and grinding, it is difficult to improve output and large-scale touch production

Its disadvantage is that the inorganic active substance is chloride, which is mainly calcium chloride. Although the moisture absorption rate of calcium chloride is high, when the air humidity is extremely high, the desiccant is prone to deliquescence, which will completely corrode the insulating glass.

[0011] CN1736554A is for overcoming above technical deficiencies, adding sodium hydroxide, quicklime, diatomite and high alumina to form hollow glass desiccant in attapulgite clay, with sodium hydroxide, sodiumized attapulgite, replaces chlorination with quicklime Calcium, but the disadvantage is that it cannot be widely used as a unified product, and the product can only be distributed in the south of the country, and the different formulations used in the north are treated differently (see Table 1)

[0014] Thereby illustrate that this preparation method versatility is poor, and its product water-absorbing property, prevents hollow glass from appearing frost phenomenon and prevents O 2 and N 2 Adsorption performance is not ideal

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