Preparation method of porous scale inhibition ceramic and application thereof

Abstract

The invention relates to a preparation method of porous scale-inhibiting ceramic and an application thereof, and the preparation method comprises the following steps: mixing hydrogen phosphate, an inorganic porous material, an auxiliary agent, a pore-forming agent and an adhesive, and then sequentially forming and sintering to obtain the porous scale-inhibiting ceramic. According to the preparation method provided by the invention, the prepared scale-inhibiting composite porous ceramic can be directly used for filtering domestic water, meanwhile, efficient control of release of active components in the porous scale-inhibiting ceramic is also realized, phase transformation from an amorphous phase to a high-temperature phase occurs in hydrophosphate in the sintering process, so that the hydrolysis rate of the porous scale-inhibiting ceramic when meeting water is greatly reduced, the the slow release rate of the scale inhibitor of hydrogen phosphate is controlled, meanwhile, stable bonding is formed between the hydrophosphate and the inorganic porous ceramic matrix at the high temperature, even if the hydrophosphate is hydrolyzed, the structure of the hydrophosphate is still kept stable, and the flaky'collapse 'phenomenon cannot occur.

Description

technical field [0001] The invention relates to the field of scale inhibition, in particular to a preparation method and application of porous scale inhibition ceramics. Background technique [0002] At present, with the development of society and the strengthening of people's awareness of environmental protection, people's water quality requirements for domestic water are also getting higher and higher. Water filtration membranes are a very effective way to purify water and improve water quality. Many places in our country face the problem of water quality and water shortage. In addition, the water supply contains a large amount of calcium and magnesium ions, especially the drinking water with high alkalinity and high hardness in the north. After a long period of use, the inner wall of the pipeline equipment is easy to form a carbonate scale layer. Water containing calcium and magnesium ions will produce scale after heating. At present, the inorganic antiscaling materials ...

AI Technical Summary

Problems solved by technology

However, its disadvantage is that the slow-release phosphate antiscalant particles may collapse in shape during use, which greatly affects the anti-scaling life.

[0005] That is to say, during the use of the current antiscalant, it is still difficult to control the slow release of active ingredients, the service life is short, and the antiscalant occupies a large space.

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