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Method of preparing high-dispersion nano calcium carbonate by using paramecia

A nano calcium carbonate, high dispersibility technology, applied in the direction of calcium carbonate/strontium/barium, chemical instruments and methods, calcium/strontium/barium compounds, etc. The operation steps are simple and easy to control, the cost is low, and the particle distribution is uniform.

Active Publication Date: 2016-12-21
平南县科学技术情报研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is aimed at the current common preparation method of nano-calcium carbonate. Since nano-calcium carbonate has extremely high free energy and polarity, during the processing, there is a phenomenon that the particles condense into aggregates, causing the material to The dispersion in the product is relatively difficult, and the defect that affects the surface gloss of the product provides a method for preparing highly dispersible nano-calcium carbonate using paramecium. The method first collects the stock solution rich in paramecium from the paddy field and prepares it with wheat The culture solution is purified and cultivated to obtain a coating solution, then zinc sulfate and amino-rich serine are added as a compound dispersion protection agent to obtain a composite mother solution, and the coating solution is added when carbon dioxide is introduced to carbonize, and the paramecium is used to coat the precipitate The surface of the precipitated calcium carbonate avoids the occurrence of mutual aggregation of calcium carbonate particles into aggregates, and obtains uniformly dispersed nano-calcium carbonate, which has excellent application prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] During paddy field irrigation, look for old rice stubble in the paddy field, use a jar to collect 300mL paddy field water near the rice stubble, place the jar in the sun and let it stand for 3 days to obtain paramecium seed liquid, weigh 5g of wheat and put Put it into 1000mL deionized water, heat and boil until the wheat grains swell and crack, and let stand naturally at 25°C for 3 days to obtain the paramecium culture solution; transfer the above paramecium seed solution into a watch glass, and use Suck out 20 paramecium individuals with a micropipette with a caliber of 0.1mm and inoculate them into the above-mentioned paramecium culture solution, wrap the mouth of the culture solution container tightly with gauze, and cultivate at 25°C for 7 days to obtain a self-made paramecium coating solution, which is ready for use ; Weigh 40g of calcium hydroxide and put it into a ceramic jar, add 10-12L of deionized water to the jar, stir with a stirring bar for 30min and then l...

example 2

[0020] During paddy field irrigation, look for old rice stubble in the paddy field, collect 350mL paddy field water near the rice stubble with a wide-mouth bottle, place the wide-mouth bottle in the sun and let it stand for 4 days to obtain paramecium seed liquid, weigh 7g of wheat and put Put it into 1100mL deionized water, heat and boil until the wheat grains swell and crack, and let stand naturally at 30°C for 4 days to obtain the paramecium culture solution; transfer the above paramecium seed solution into a watch glass, and use Suck out 25 paramecium individuals with a micropipette with a caliber of 0.1mm and inoculate them into the above-mentioned paramecium culture solution, wrap the mouth of the culture solution container tightly with gauze, and cultivate at 30°C for 7 days to obtain a self-made paramecium coating solution, which is ready for use ; Take by weighing 45g of calcium hydroxide and put it into a ceramic tank, add 11L deionized water in the tank, stir with a ...

example 3

[0023]During paddy field irrigation, look for the old rice stubble in the paddy field, collect 400mL paddy field water near the rice stubble with a jar, place the jar in the sun and let it stand for 5 days to obtain paramecium seed liquid, weigh 8g of wheat and put Put it into 1200mL deionized water, heat and boil until the wheat grains swell and crack, and let stand naturally at 35°C for 4 days to obtain the paramecium culture solution; transfer the above paramecium seed solution into a watch glass, and use Suck out 30 paramecium individuals with a micropipette with a caliber of 0.1 mm and inoculate them into the above-mentioned paramecium culture solution, wrap the mouth of the culture solution container tightly with gauze, and after culturing at 35°C for 8 days, a self-made paramecium coating solution can be obtained, which is ready for use ; Take 50g of calcium hydroxide and put it into a ceramic tank, add 12L deionized water in the tank, stir with a stirring rod for 40min ...

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Abstract

The invention relates to a method of preparing high-dispersion nano calcium carbonate by using paramecia and belongs to the technical field of preparation of calcium carbonate. According to the method, original liquid with rich paramecia is collected first from a paddy field, paramecia are purified and cultured with wheat-prepared culture solution to obtain a coating liquid, zinc sulfate and serine with rich amino acid are added as a composite dispersion protectant, composite mother liquid is prepared, the coating liquid is added while carbon dioxide is introduced for charring, the surface of calcium carbonate that precipitates is covered with the paramecia to avoid mutual aggregation and clustering of calcium carbon particles, and the uniformly dispersed nano calcium carbonate is obtained; the nano calcium carbonate has excellent application prospect.

Description

technical field [0001] The invention relates to a method for preparing highly dispersed nano-calcium carbonate by using paramecium, belonging to the technical field of calcium carbonate preparation. Background technique [0002] Nano-calcium carbonate is a new type of ultra-fine solid powder material developed in the 1980s, with a particle size between 0.01 and 0.1 μm. Due to the superfineness of nano-calcium carbonate particles, its crystal structure and surface electronic structure change, resulting in quantum size effects, small size effects, surface effects and macroscopic quantum effects that ordinary calcium carbonate does not have. It can be widely used in plastics, Rubber, paint, ink, sealing adhesive materials, coatings and other fields. [0003] In the current common method of preparing calcium carbonate, because the surface of nano-calcium carbonate has a group with strong hydrophilicity, the affinity between nano-calcium carbonate and polymer is poor, and nano-c...

Claims

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Application Information

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IPC IPC(8): C01F11/18
CPCC01F11/181
Inventor 佟明张晶
Owner 平南县科学技术情报研究所
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