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Production and producer for nanometer ferric oxide

A technology of nano-iron oxide and oxygen, applied in the direction of iron oxide, ferrous oxide, iron oxide/iron hydroxide, etc., can solve the problems of complex process, large particle size, poor quality, etc., and achieve simple process, good product quality, The effect of high tinting strength

Inactive Publication Date: 2006-08-16
JIANGSU TIANYI ULTRA FINE METAL POWDER
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Problems solved by technology

However, the nano-iron oxide produced by the above-mentioned process has the following defects: 1. The quality is poor, the particle size is large, the product particles are spindle-shaped, the ratio of the long and short axes is 3 to 5, and the length of the short axis is 10 to 20 nanometers
②.Complicated process

Method used

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  • Production and producer for nanometer ferric oxide

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the drawings and embodiments.

[0022] In the equipment of the present invention, the reactor 1 includes a combustion chamber 2, a settling chamber 4, a receiver 5, and a dust chamber 3. The cooling chamber 6 surrounds the outside of the reactor 1, and has inlet and outlet valves 7 and 8 on it.

[0023] The combustion chamber 2 is provided with two pipes extending out of the reactor 1, namely the raw material spray pipe 9'and the gas pipe 10'. They are placed in the combustion chamber 2 at one end of the port with nozzles 9, 10 respectively for pentacarbonyl Iron and oxygen or air undergo combustion reaction, the nozzle 10 with oxygen or air is placed in the lower part of the combustion chamber 2 and sprays upward, and the nozzle 9 with pentacarbonyl iron is placed in the upper part of the combustion chamber 2 and sprays downward;

[0024] The sedimentation chamber 4 is located at the lower part of th...

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Abstract

Production of nanometer ferric oxide and its apparatus are disclosed. The process is carried out by carrying pentacarboxylic-based iron or its steam by pressurized N2 or its inert gas, atomization ejecting it above 0.01Mpa from materials pipeline of reactive kettle, combustion reacting with oxygen or air jetted from gas pipeline of reactive kettle, dropping ferric oxide particles into liquid settling medium, separating them out by settling liquid, receiving reactant, drying and cooling to obtain final product. It has better tinting strength and dispersion and can be used for building material, coating, ink, ceramic and papermaking.

Description

Technical field [0001] The invention relates to a preparation method and equipment of iron oxide, in particular to a preparation process and equipment of nanometer iron oxide Background technique [0002] At present, nano-iron oxide has been widely used in luxury car flash paints, hammer paints, leather pigments, wood coating colorants, imitation mahogany coatings, canned bottle inner wall coatings, and architectural interior and exterior wall coatings, as well as ink and plastic coloring. Due to its strict control of arsenic and heavy metals, the nano iron oxide prepared by the invention can replace prohibited azo pigments, dyes and other synthetic pigments, and be used as a colorant for food, medicine, and cosmetics. In addition, it can also be used as a polishing material and magnetic material for tapes to produce high-quality ferrite. In my country, most of its production processes are made from ferrous sulfate and other raw materials through oxidation-conversion processes. H...

Claims

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Application Information

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IPC IPC(8): C01G49/06C01G49/04
Inventor 高为鑫张莉莉
Owner JIANGSU TIANYI ULTRA FINE METAL POWDER
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