Preparation method of a new type of mineral silica flake desiccant, and related desiccant

Abstract

The invention relates to a preparation method of novel mineral silicon dioxide flake desiccant and the novel mineral silicon dioxide flake desiccant prepared by the method. The method comprises the steps of: (1) pelletizing mineral silicon dioxide desiccant powder through water; (2) drying obtained particles; (3) sieving the dried particles; (4) performing the compression molding for the sieved particles; and (5) drying the molded particles to prepare the novel mineral silicon dioxide flake desiccant. The method adopts mineral silicon dioxide powder as the raw material; products with different thickness specifications can be pressed on a mechanical tabletting forming machine through moulds with different size specifications; compared with the prior art, the prepared novel mineral silicon dioxide flake desiccant has higher total moisture absorption amount and stable moisture absorption capacity under the condition of same volume; the desiccant can be accordant with the size of a used space, so that the safety and the environmental friendliness are achieved; and the desiccant can achieve automatic production, and has huge application foreground and economic value.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a preparation method of a novel mineral silica flaky desiccant and the novel mineral silica flaky desiccant prepared by the method. Background technique [0002] With the widespread use of desiccants, it is required that the desiccant be smaller in size and better fit the packaging container; it is also required that the desiccant is safe and reliable during use, has stable hygroscopic performance, and can be regenerated and used repeatedly. [0003] In recent years, bagged silica gel and other desiccants have been widely used. The main defect is that silica gel and other desiccants must be repacked with air-permeable non-woven fabrics or paper, and cannot be directly attached to the product packaging that requires desiccant. , and the bagged silica gel desiccant will fall and break, which may cause secondary pollution of the product; and the traditional bagged silica gel desicc...

AI Technical Summary

Problems solved by technology

[0003] In recent years, bagged silica gel and other desiccants have been widely used. The main defect is that silica gel and other desiccants must be repacked with air-permeable non-woven fabrics or paper, and cannot be directly attached to the product packaging that requires desiccant. , and the bagged silica gel desiccant will fall and break, which may cause secondary pollution of the product; and the traditional bagged silica gel desiccant placement process can only be placed manually, and continuous automatic delivery cannot be realized, thus limiting its automation. industry process

The disadvantages of the disclosed content are: only simple mixing of materials, more components, and higher cost; no specific experimental data is disclosed, and it has been verified that its hygroscopic performance is not good, and its hygroscopic rate and moisture absorption are low

[0006] Moreover, the disadvantages of the above-mentioned technical content are: the desiccant must be repacked with breathable non-woven fabric or paper before it can be used in various moisture-proof fields; and the amount of space is small, and the total absorption is bound to be low

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