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Preparation method of calcium carbonate shell micron-nanometer material

A calcium carbonate, micro-nano technology, applied in the direction of calcium carbonate/strontium/barium, etc., can solve the problems of difficult industrial application, complex reaction process, high energy consumption, etc., and achieve simple reaction process, low cost and low energy consumption. low effect

Inactive Publication Date: 2017-06-23
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the preparation methods of calcium carbonate hollow shell micro-nano materials mainly include: hydrothermal synthesis method, template synthesis method and organic matrix assisted synthesis method, etc. However, these synthesis methods generally have disadvantages such as high energy consumption, high cost and complicated reaction process. Difficult to apply

Method used

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  • Preparation method of calcium carbonate shell micron-nanometer material

Examples

Experimental program
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Effect test

Embodiment 1

[0014] At normal temperature and pressure, first prepare a saturated calcium chloride solution in a 50mL beaker, then weigh 20g of potassium carbonate with a particle size of 1.6μm (8000 mesh) and add it to the saturated calcium chloride solution, soak for 20min, filter, wash and dry A calcium carbonate hollow shell micro-nano material with an average particle size of 2 μm is obtained.

Embodiment 2

[0016] At normal temperature and pressure, first prepare a saturated calcium chloride solution in a 50mL beaker, then weigh 20g of sodium carbonate with a particle size of 1.6μm (8000 mesh) and add it to the saturated calcium chloride solution, soak for 20min, filter, wash and dry A calcium carbonate hollow shell micro-nano material with an average particle size of 2 μm is obtained.

Embodiment 3

[0018] At normal temperature and pressure, first prepare a saturated calcium nitrate solution in a 50mL beaker, then weigh 20g of ammonium carbonate with a particle size of 1.6μm (8000 mesh) and add it to the saturated calcium nitrate solution, soak for 10min, filter, wash, and dry to obtain an average A calcium carbonate hollow shell micro-nano material with a particle size of 2 μm.

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Abstract

The invention discloses a preparation method of a calcium carbonate shell micron-nanometer material. The method comprises the following specific steps of soaking soluble carbonate particles into a saturated calcium salt solution at normal pressure and temperature; generating calcium carbonate on the surfaces of the particles along with dissolution of the soluble carbonate particles; and soaking for 10-30min and filtering, washing and drying to obtain the calcium carbonate shell micron-nanometer material. The prepared calcium carbonate shell micron-nanometer material is uniform in granularity and controllable in particle sizes, low in energy consumption and low in cost and is suitable for large-scale industrial production, and the reaction process is simple and feasible.

Description

technical field [0001] The invention belongs to the technical field of synthesis of calcium carbonate micro-nano materials, and in particular relates to a preparation method of calcium carbonate hollow-shell micro-nano materials. Background technique [0002] Calcium carbonate hollow shell micro-nano material belongs to light calcium carbonate, which can be used as filler in industries such as rubber, plastics, papermaking, paint and ink, etc. It is widely used in organic synthesis, metallurgy, glass and asbestos production, and can also be used in the treatment of industrial wastewater. Treatment, antacids for gastric and duodenal ulcers, antidotes for acidosis, containing SO 2 SO in exhaust gas 2 Eliminators, food additives, feed fillers and felt anti-sticking agents can also be used in the fields of tooth powder, toothpaste and other cosmetic raw materials and drug loading. [0003] At present, the preparation methods of calcium carbonate hollow shell micro-nano materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/18
CPCC01F11/18C01P2002/72C01P2004/04C01P2004/34C01P2004/51C01P2004/61
Inventor 王魁杨林仉华马晓明李伟
Owner HENAN NORMAL UNIV