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A kind of production technology of ruthenium trichloride

A ruthenium trichloride and production process technology, applied in the production process field of ruthenium trichloride, can solve the problems of uneven crystal particles, many production steps, high energy consumption, etc., and achieve good crystal uniformity, stable product performance, and production short cycle effect

Active Publication Date: 2018-02-23
昆明铂磊科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The crystalline particles of the product are not uniform. In industrial production, the dried product is basically lumpy, and the cost is higher due to more production steps and higher energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A kind of production technique of ruthenium trichloride, comprises the steps:

[0046] Step (1), producing RuO according to the conventional method 4 gas; then absorb RuO with dilute hydrochloric acid 4 Gas, to the concentration of Ru in the solution is 59g / L, simultaneously, adjust pH to 1.9, obtain containing ruthenium solution;

[0047] Described dilute hydrochloric acid is that mass fraction is 37% hydrochloric acid and water are mixed according to volume ratio 1.9:1;

[0048]Step (2), adding a dispersing solvent to the ruthenium-containing solution obtained in step (1), the volume of the dispersing solvent added is 9.8% of the volume of the ruthenium-containing solution to obtain a dispersed ruthenium-containing solution;

[0049] Described dispersion solvent is the mixture of hydrogen peroxide, ethanol and acetone, and the volume ratio of hydrogen peroxide, ethanol and acetone in the dispersion solvent is 1:7.9:0.95;

[0050] Step (3), spray drying:

[0051] T...

Embodiment 2

[0055] A kind of production technique of ruthenium trichloride, comprises the steps:

[0056] Step (1), producing RuO according to the conventional method 4 gas; then absorb RuO with dilute hydrochloric acid 4 Gas, to the concentration of Ru in the solution is 61g / L, meanwhile, adjust pH to 1.9-2.1, obtain the ruthenium-containing solution;

[0057] Described dilute hydrochloric acid is that mass fraction is 37% hydrochloric acid and water are mixed according to volume ratio 2.1:1;

[0058] Step (2), adding a dispersion solvent to the ruthenium-containing solution obtained in step (1), the volume of the dispersion solvent added is 10.2% of the volume of the ruthenium-containing solution to obtain a dispersed ruthenium-containing solution;

[0059] The dispersion solvent is a mixture of hydrogen peroxide, ethanol and acetone, and the volume ratio of hydrogen peroxide, ethanol and acetone in the dispersion solvent is 1:8.1:1.05;

[0060] Step (3), spray drying:

[0061] The ...

Embodiment 3

[0066] A kind of production technique of ruthenium trichloride, comprises the steps:

[0067] Step (1), producing RuO according to the conventional method 4 gas; then absorb RuO with dilute hydrochloric acid 4 Gas, to the concentration of Ru in the solution is 60g / L, simultaneously, adjusts pH to 2, obtains the ruthenium-containing solution;

[0068] Described dilute hydrochloric acid is that mass fraction is 37% hydrochloric acid and water are mixed according to volume ratio 2:1;

[0069] Step (2), adding a dispersion solvent to the ruthenium-containing solution obtained in step (1), the volume of the dispersion solvent added is 10% of the volume of the ruthenium-containing solution to obtain a dispersed ruthenium-containing solution;

[0070] Described dispersion solvent is the mixture of hydrogen peroxide, ethanol and acetone, and the volume ratio of hydrogen peroxide, ethanol and acetone in the dispersion solvent is 1:8:1;

[0071] Step (3), spray drying:

[0072] The ...

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Abstract

The invention relates to a production process of ruthenium trichloride. According to the process, RuO4 gas is produced according to a traditional method; diluted hydrochloric acid is adopted for absorbing the RuO4 gas till the concentration of Ru in the solution ranges from 59 g / L to 61 g / L, meanwhile, the pH value is adjusted to range from 1.9 to 2.1, and a ruthenium-containing solution is obtained; a dispersing solvent is added into the ruthenium-containing solution, the adding volume of the dispersing solution is 9.8-10.2% of the volume of the ruthenium-containing solution, and the dispersed ruthenium-containing solution is obtained; the dispersing solvent is a mixture of hydrogen peroxide, ethyl alcohol and acetone according to the volume ratio of 1:(7.9-8.1):(0.95-1.05), the obtained dispersed ruthenium-containing solution is spray-dried through a spray dryer, and ruthenium trichloride powder is obtained. A traditional production process of ruthenium trichloride is improved, continuous, large-scale and equipment production is achieved, and the purposes of being short in production period, low in cost and free of polluting the environment are achieved.

Description

technical field [0001] The invention belongs to the technical field of metal sorting in chemical production, and in particular relates to a production process of ruthenium trichloride. Background technique [0002] With the continuous development of my country's manufacturing level, the requirements for the selectivity, stability and catalytic activity of ruthenium catalysts are also increasing. At present, the ruthenium compound products commonly used as precursors are mainly ruthenium trichloride, ruthenium acetate, ruthenium oxide, and ruthenium nitrate. This product is widely used in petrochemical industry, chlor-alkali industry, pharmaceutical industry, spice industry, environmental protection wastewater, waste gas and other precision electronic fields. At present, the domestic consumption of ruthenium catalyst equivalent to ruthenium has reached 50 tons per year. Industrial ruthenium catalysts can be divided into two categories, one is homogeneous catalysts, that is, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G55/00
CPCC01G55/005
Inventor 魏晓晖郑恩华张维峰李雄
Owner 昆明铂磊科技有限公司
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