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Prepn process of nano copper iodide powder

A copper iodide, nanotechnology, applied in the field of preparation of nano-scale copper iodide powder directly by chemical reaction method, can solve the problems of no preparation method and process report, etc., and achieve easy industrial scale production and simple process Easy to control, high purity effect

Inactive Publication Date: 2007-02-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the production of nanometer copper iodide powder, all do not see relevant preparation method and process report at home and abroad

Method used

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  • Prepn process of nano copper iodide powder
  • Prepn process of nano copper iodide powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Prepare nano copper iodide powder according to the following process steps.

[0018] a. Prepare the following two solutions separately:

[0019] Copper sulfate clarified aqueous solution, the solution contains: copper sulfate 0.1M / L, citric acid (complexing agent) 0.068M / L;

[0020] Potassium iodide clear aqueous solution, the solution contains: potassium iodide 0.2M / L, citric acid (complexing agent) 0.136M / L, sodium dodecyl sulfonate (dispersant) 0.02M / L;

[0021] b. Slowly add the above-prepared clarified copper sulfate aqueous solution dropwise to the clarified potassium iodide aqueous solution under normal temperature and normal pressure while fully stirring, and obtain nano-copper iodide precipitation after standing and settling;

[0022] c. The above-mentioned nano-copper iodide precipitate is filtered, washed three times with water, and dried at a temperature of 80-100° C. for 1 to 2.5 hours to obtain nano-copper iodide powder with a particle size of 30-60 nm.

[002...

Embodiment 2

[0032] Prepare nano copper iodide powder according to the following process steps.

[0033] a. Prepare the following two solutions separately:

[0034] Copper sulfate clarified aqueous solution, the solution contains: copper sulfate 0.2M / L, citric acid (complexing agent) 0.136M / L;

[0035] Potassium iodide clarified aqueous solution, the solution contains: potassium iodide 0.4M / L, citric acid (complexing agent) 0.136M / L, sodium lauryl sulfonate (dispersant) 0.04M / L;

[0036] b. Slowly add the above-prepared clarified copper sulfate aqueous solution dropwise to the clarified potassium iodide aqueous solution under normal temperature and normal pressure while fully stirring, and obtain nano-copper iodide precipitation after standing and settling;

[0037] c. The above-mentioned nano-copper iodide precipitate is filtered, washed three times with water, and dried at a temperature of 80-100° C. for 1 to 2.5 hours to obtain nano-copper iodide powder with a particle size of 70-100 nm.

Embodiment 3

[0039] Prepare nano copper iodide powder according to the following process steps.

[0040] a. Prepare the following two solutions separately:

[0041] Copper sulfate clarified aqueous solution, the solution contains: copper sulfate 0.15M / L, citric acid (complexing agent) 0.102M / L;

[0042] Potassium iodide clarified aqueous solution, the solution contains: potassium iodide 0.3M / L, citric acid (complexing agent) 0.102M / L, sodium lauryl sulfonate (dispersant) 0.03M / L;

[0043] b. Slowly add the above-prepared clarified copper sulfate aqueous solution dropwise to the clarified potassium iodide aqueous solution under normal temperature and normal pressure while fully stirring, and obtain nano-copper iodide precipitation after standing and settling;

[0044] c. The above-mentioned nano-copper iodide precipitate is filtered, washed with water three times, and dried at a temperature of 80-100° C. for 1 to 2.5 hours to obtain nano-copper iodide powder with a particle size of 45-75 nm.

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Abstract

The present invention relates to the preparation process of nanometer copper iodide powder. Clear copper sulfate water solution containing copper sulfate in 0.1-0.2 M / L and complexing agent in 0.068-0.136 M / L is dropped slowly into clear potassium iodide water solution containing potassium iodide in 0.2-0.4 M / L, complexing agent in 0.068-0.136 M / L and dispersant in 0.02-0.04 M / L at normal temperature and normal pressure via stirring, and the product is let stand to deposit to obtain nanometer copper iodide deposit. The nanometer copper iodide deposit is filtered, washed and dried at 80-100 deg.c for 1-2.5 hr to obtain nanometer copper iodide powder with granularity below 100 nm. The process is easy to control, pollution-free and suitable for industrial production, and the product has high quality and low cost.

Description

Technical field [0001] The invention relates to a method for preparing copper iodide powder with a particle size of nanometer level, in particular to a method for directly obtaining nanometer copper iodide powder by using a chemical reaction method. Background technique [0002] Copper iodide plays an auxiliary catalytic role in artificial weather modification and can improve the effect of ice formation. Copper iodide, silver iodide and silver iodate together can form a composite as a composite nucleating agent in artificial weather modification. Using the above-mentioned compound powder of nanometer ultrafine particles to produce artificial rainfall in line with the catalyst, the effect is more prominent. For the production of nano-copper iodide powder, there is no report on the preparation method and process at home and abroad. Summary of the invention [0003] The purpose of the present invention is to provide a method for preparing nano copper iodide powder with simple proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G3/04C01B9/06
Inventor 江中浩刘先黎连建设李光玉
Owner JILIN UNIV
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