Method for preparing oxine copper, and product of oxine copper

A technology of copper quinoline and hydroxyquinoline salt, which is applied in the fields of botanical equipment and methods, chemicals for biological control, textiles and paper making, etc., can solve the problems of uneven particle size distribution and low purity of quinoline copper products , to achieve the effect of controllable product color, high product purity and easy control

Active Publication Date: 2010-12-01
ZHEJIANG HISUN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome defects such as uneven particle size distribution and low purity of quinoline copper products in the existing preparation method of quinoline copper, and provide a new preparation method of quinoline copper. The obtained quinoline copper product has uniform particle size distribution, high purity, high yield, and controllable product color

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Take 1 L of copper sulfate solution with a copper content of 30 g / L, add 8-hydroxyquinoline sulfate, and control the molar ratio of copper sulfate to 8-hydroxyquinoline salt to be 1:2; use hydrochloric acid to adjust until the solution is clear. Add 120g of urea into the clarified mixed solution, fully mix and dissolve, add surfactant Tween-80 which is 0.05% of the mass of copper sulfate, keep warm at 100 degrees Celsius for 8 hours, naturally cool to room temperature, stir, and age for 8 hours , after filtering, washing, drying and drying to obtain 160g quinoline copper powder, the product color is dark brown. XRD and TEM analysis show that its particle size distribution is about 60nm, and the product purity is 99.6%.

Embodiment 2

[0018] Take 1 L of copper chloride solution with a copper content of 100 g / L, add 8-quinolinol hydrochloride, and control the molar ratio of copper chloride to 8-quinolinium salt to be 1:2; use acetic acid to adjust until the solution is clear. Add 300g of urea into the mixed solution, fully mix and dissolve, add the surfactant saponin which is 2% of the mass of copper chloride, keep it warm at 85 degrees Celsius for 6 hours, naturally cool to room temperature, stir, age for 8 hours, and filter , washed, and air-dried to obtain 530g quinoline copper powder, and the product color is emerald green. XRD and TEM analysis show that its particle size distribution is about 95nm, and the product purity is 99.4%.

Embodiment 3

[0020] Take 1 L of copper nitrate solution with a copper content of 60 g / L, add 8-hydroxyquinoline sulfate, and control the molar ratio of copper nitrate to 8-hydroxyquinoline salt to be 1:2; use hydrochloric acid to adjust until the solution is clear. Add 250g of urea into the mixed solution, fully mix and dissolve, add surfactant Span which is 1% of the mass of copper nitrate, keep warm at 100 degrees Celsius for 8 hours, naturally cool to room temperature, stir, age for 6 hours, filter and wash , air-dried to obtain 318g quinoline copper powder, and the product color is dark green. XRD and TEM analysis show that its particle size distribution is about 80nm, and the product purity is 99.6%.

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Abstract

The invention discloses a method for preparing oxine copper, and a product of the oxine copper. The method for preparing the oxine copper comprises the following steps of: (1) mixing a copper salt and 8-tumex to obtain mixed solution; adjusting the mixed solution to be clear by using an acid for later use; (2) dissolving urea in the clear mixed solution obtained by the step (1), then adding a surfactant, and preserving the heat to perform reaction; and (3) reducing the temperature of the reaction product to room temperature, and then stirring, aging, filtering, washing and drying the reaction product sequentially to obtain the oxine copper. The oxine copper powder product prepared by the method has the advantages of uniform particle size distribution, less aggregation, basically spherical morphology, compactness, easy washing, high product purity, high yield and controllable product color; the product can meet the application requirement in the fields, such as a pesticide, a catalyst, plastic, wood preservation and the like; and the method has the advantages of simple operation, easy control, low equipment requirement, low cost and easy industrial production.

Description

technical field [0001] The invention relates to a method for preparing copper quinolate, and also relates to a copper quinolate product obtained by the preparation method, which belongs to the field of copper quinolate preparation. Background technique [0002] The preparation method of quinoline copper usually adopts a chemical precipitation process, in which carbonate, caustic alkali, ammonia water, etc. can be used as precipitating agents for chemical precipitation, and precipitated powders with different particle sizes and shapes can be obtained under different operating conditions. The direct precipitation method using carbonate, caustic, etc. as a precipitant often easily causes the local concentration of the precipitant to be too large, resulting in excessive supersaturation of the local product, and finally resulting in uneven particle size distribution, and the coating phenomenon is obvious. The purity is not high, only about 95%, and by-products such as basic coppe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D215/30D06M13/355A01N43/42A01P3/00
Inventor 蔡为明蒋富国陈应惠周继康金旻琦
Owner ZHEJIANG HISUN CHEM
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