Method for dispersing nano calcium carbonate powder material in aqueous solution

A technology of nano-calcium carbonate powder and body materials, which is applied in the field of oilfield chemistry, can solve the problems of nano-calcium carbonate particle size and ultrasonic dispersion, etc., and achieve the effect of obvious stabilization effect and promotion of dispersion effect

Active Publication Date: 2013-09-18
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this patent does not mention the particle size of the nano-calcium carbonate after the nano-calcium carbonate powder material is dispersed in the aqueous solution, and this patent also does not mention the method of ultrasonic dispersion

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  • Method for dispersing nano calcium carbonate powder material in aqueous solution
  • Method for dispersing nano calcium carbonate powder material in aqueous solution
  • Method for dispersing nano calcium carbonate powder material in aqueous solution

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The nano-calcium carbonate powder material used in this embodiment is produced by Henan Keli New Materials Co., Ltd. The solvent used in the experiment is distilled water, and the dispersant is compounded and used in combination with high-speed stirring and ultrasonic dispersion technology to disperse it.

[0043] The dispersant is composed of sodium dodecyl sulfate (SDS), OP-10 emulsifier, cetyltrimethylammonium bromide (CTAB) according to the mass ratio of 1:2:2, and the stabilizer adopts biological Polymer xanthan gum (XC).

[0044] The main instruments used in the experiment: Tester electric distilled water device, GJD-B12K single-axis frequency conversion high-speed mixer, JCP-1118 Shanhe ultrasonic cleaning machine, Zetasizer-3000 colloidal particle size / potential tester.

[0045] The results of scanning electron microscope (SEM) experiments show that the average particle size of nano-calcium carbonate produced by Henan Keli New Materials Co., Ltd. is about 50-60...

Embodiment 2

[0059] The nano-calcium carbonate used in this embodiment is produced by Hubei Kailong Chemical Group Co., Ltd. The solvent used in the experiment is distilled water, which is dispersed by using dispersant combined with high-speed stirring and ultrasonic dispersion technology.

[0060] The dispersant is composed of sodium dodecyl sulfate (SDS), OP-10 emulsifier, cetyltrimethylammonium bromide (CTAB) according to the mass ratio of 1:2:2, and the stabilizer adopts biological Polymer xanthan gum (XC).

[0061] The main instruments used in the experiment: Tester electric distilled water device, GJD-B12K single-axis frequency conversion high-speed mixer, JCP-1118 Shanhe ultrasonic cleaning machine, Zetasizer-3000 colloidal particle size / potential tester.

[0062] The results of scanning electron microscopy (SEM) experiments show that the average particle size of nano-calcium carbonate produced by Hubei Kailong Chemical Group Co., Ltd. is about 60-70nm.

[0063] The specific metho...

Embodiment 3

[0075] The nano-calcium carbonate used in this example is produced by Shanxi Ruicheng Xintai Nano Material Co., Ltd. The solvent used in the experiment is distilled water, which is dispersed by using dispersant combined with high-speed stirring and ultrasonic dispersion technology.

[0076] The dispersant is composed of sodium dodecyl sulfate (SDS), OP-10 emulsifier, cetyltrimethylammonium bromide (CTAB) according to the mass ratio of 1:2:2, and the stabilizer adopts biological Polymer xanthan gum (XC).

[0077] The main instruments used in the experiment: Tester electric distilled water device, GJD-B12K single-axis frequency conversion high-speed mixer, JCP-1118 Shanhe ultrasonic cleaning machine, Zetasizer-3000 colloidal particle size / potential tester.

[0078] The results of scanning electron microscopy (SEM) experiments show that the average particle size of nano-calcium carbonate produced by Shanxi Ruicheng Xintai Nano Material Co., Ltd. is about 40-70nm.

[0079] The s...

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Abstract

The invention provides a method for dispersing a nano calcium carbonate powder material in an aqueous solution, wherein the nano calcium carbonate powder material is dispersed into a nanometer level in the aqueous solution by means of cooperative utilization a dispersing agent and a stabilizer, high speed stirring and shearing functions and ultrasonic dispersion, and the stability of the nano calcium carbonate powder material is maintained; and the dispersing agent is composed of an anionic surfactant, a nonionic surfactant and a cationic surfactant. The method provided by the invention can be used for dispersing the nano calcium carbonate powder to the nanometer level in the aqueous solution, namely, the particle diameter is smaller than 100nm; the stabilization effect of the stabilizer is obvious, and the stabilizer is cooperatively used with the dispersing agent to prompt the dispersion effect; and the method provided by the invention solves the problem of dispersing the carbon nano calcium carbonate powder material in the aqueous solution and lays a good foundation for expanding the application of the carbon nano calcium carbonate powder material in oilfield chemistry and particularly in protection of low-porosity low-permeability oil and gas reservoirs.

Description

technical field [0001] The invention provides a method for dispersing nano-calcium carbonate powder materials in aqueous solution, in particular to a method for dispersing nano-calcium carbonate powder materials through the compound use of dispersants and stabilizers, high-speed stirring and shearing, and ultrasonic dispersion. The invention discloses a method for dispersing to nanometer level and maintaining stability in aqueous solution, which belongs to the field of oil field chemistry. Background technique [0002] Nano-calcium carbonate is a new type of ultra-fine solid material developed in the 1980s. The particle size is less than 100nm. It is an important inorganic filler. It has small particle size, large specific surface area, and high specific surface energy. Nanoparticles The unique small size effect and surface effect make it exhibit superior physical and chemical properties that ordinary calcium carbonate does not have. It is widely used in many industrial fiel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F3/12
Inventor 蔡记华王济君谷穗
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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