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Deoxygenating drying agent and preparing method thereof
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A desiccant and bentonite technology, applied in the field of deoxidizing desiccant and its preparation, can solve the problems of low repeated utilization rate, single function, poor drying effect, etc., and achieve the effect of low equipment requirements and simple process
Active Publication Date: 2015-12-02
湘潭上尚保鲜科技有限公司
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Problems solved by technology
However, at present, these bentonite desiccants have a single function, only have a drying effect, and the repeated utilization rate is low, the drying effect after repeated use is poor, and the adsorption effect needs to be improved
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Embodiment 1
[0027] A deoxidizing desiccant, comprising the following components in weight percentage: 20% iron powder, 2% bamboo charcoal, 2% sodium chloride, 1% bentonite, 60% quartz sand, and 15% water.
[0028] The preparation method of the above-mentioned deoxidizing desiccant includes: (1) weighing each component by weight percentage, mixing bamboo charcoal, sodium chloride, bentonite, and quartz sand, adding water, and stirring evenly; Add iron powder to the mixture and stir evenly to obtain a deoxidizing desiccant.
Embodiment 2
[0030] A deoxidizing desiccant, comprising the following components by weight percentage: 35% iron powder, 2% bamboo charcoal, 2% sodium chloride, 1% bentonite, 50% quartz sand, and 15% water.
[0031] The preparation method of the above-mentioned deoxidizing desiccant includes: (1) weighing each component by weight percentage, mixing bamboo charcoal, sodium chloride, bentonite, and quartz sand, adding water, and stirring evenly; Add iron powder to the mixture and stir evenly to obtain a deoxidizing desiccant.
Embodiment 3
[0033] A deoxidizing desiccant, comprising the following components in weight percentage: 10% iron powder, 8% bamboo charcoal, 2% sodium chloride, 5% bentonite, 50% quartz sand, and 25% water.
[0034] The preparation method of the above-mentioned deoxidizing desiccant includes: (1) weighing each component by weight percentage, mixing bamboo charcoal, sodium chloride, bentonite, and quartz sand, adding water, and stirring evenly; Add iron powder to the mixture and stir evenly to obtain a deoxidizing desiccant.
[0035] Among them, the bentonite is obtained through the following steps: (i) After drying the bentonite raw material at 90°C, crush it to 300 mesh to obtain raw material powder; (ii): add the raw material powder to a sodium salt solution with a concentration of 50%, Treat for 5 hours and filter to obtain a treatment solution; the sodium salt is sodium pyrophosphate; the weight ratio of the raw material powder to the sodium salt solution is 1:2; (Ⅲ) add zeolite to the ...
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Abstract
The invention belongs to the technical field of drying agents and relates to a deoxygenating drying agent. The deoxygenating drying agent comprises iron powder, bamboo charcoal, sodiumchloride, bentonite, quartz sand, water, hollow microspheres and fibers. The preparing method of the deoxygenating drying agent includes the steps that firstly, the bamboo charcoal, the sodiumchloride, the bentonite and the quartz sand are mixed, water is added, and even stirring is conducted; secondly, the hollow microspheres are added to the mixture obtained in the first step and evenly mixed; thirdly, the fibers and the iron powder are evenly stirred and then are added to the mixture obtained in the second step, even mixing is conducted, and the deoxygenating drying agent is obtained. The deoxygenating drying agent has the deoxygenating function and the drying function, the cation exchange capability is high, the deoxygenating drying effect is obvious, and the reutilization rate is high. A preparing method is simple in technology, low in requirement for equipment and suitable for large-scale industrial production.
Description
technical field [0001] The invention belongs to the technical field of deoxidizing desiccants, and relates to a deoxidizing desiccant and a preparation method thereof. Background technique [0002] A desiccant is a dehydrating agent that absorbs moisture from the atmosphere. It physically absorbs water molecules in its own structure or chemically absorbs water molecules and changes its chemical structure to become another substance. It is suitable for preventing moisture in instruments, meters, electrical equipment, medicines, food, textiles and other various packaging items. [0003] At present, silica geldesiccant is widely used in the market, such as a silica gel desiccant disclosed in the invention patent of CN104174373A. According to the percentage by weight, silica gel: 50-70%, aluminum oxide: 12-15%, three Ferricoxide: 8-10%, calciumchloride: 5-8%, magnesiumsulfate: 3-6%, carboxymethyl cellulose: 8-15%, essence: 0.7-1.0%, and then the selected silica gel , Al2O3...
Claims
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Application Information
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