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Preparation method of temperature-resistant iron oxide yellow

An iron oxide yellow, temperature-resistant technology, applied in chemical instruments and methods, inorganic chemistry, iron compounds, etc., can solve the problems of pigments containing chlorides, long process lines, etc., to achieve high tinting strength, simple process flow, and less equipment Effect

Active Publication Date: 2016-06-22
ZHEJIANG QICAI ECO TECH CO LTD
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AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the process line is long, and the prepared pigment contains chloride, which is corrosive to a certain extent.

Method used

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  • Preparation method of temperature-resistant iron oxide yellow
  • Preparation method of temperature-resistant iron oxide yellow
  • Preparation method of temperature-resistant iron oxide yellow

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Experimental program
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Effect test

Embodiment

[0020] Step 1, commercially available common iron oxide yellow (313) 700kg, zinc oxide 300kg, aluminum hydroxide 30kg and basic carbonate (adding 0.5%, 1%, 2% basic carbonate respectively, with iron yellow quality as the basis) mixed and added to the mixer (double helix conical mixer ZHJ-15W (DSH-15)), mixed for 1 hour, and then the mixture was placed in a jet mill (Huisheng 3R2620) to pulverize evenly. Then mix again in the blender for 1 hour, so that all substances are fully mixed and evenly mixed.

[0021] Step 2, the mixture obtained in step 1 is calcined at 850°C for 2 hours in a pusher kiln, and after cooling, it is placed in a blender and blended for 10-20 minutes to obtain a temperature-resistant zinc iron yellow product. The temperature resistance test of raw materials and products at different temperatures (190°C, 220°C, 250°C, 280°C) obtained the following data:

[0022] Table 1190 ℃ temperature resistance performance comparison

[0023]

[0024] It can be seen...

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Abstract

The invention discloses a preparation method of temperature-resistant iron oxide yellow. The preparation method comprises the following steps: 1. adding iron oxide yellow, zinc oxide, aluminum hydroxide and basic carbonate into a mixing machine according to the mass ratio of 70:(20-40):(1.5-3.5):(0.5-2.0), mixing for 0.5-2 hours, uniformly pulverizing the mixture in a jet mill, and mixing in the mixing machine for 0.5-2 hours until all the substances are mixed thoroughly and uniformly; and 2. calcining the mixture obtained in the step 1 at 700-1000 DEG C for 2-6 hours, and mixing in the mixing machine for 10-20 minutes, thereby obtaining the temperature-resistant zinc iron yellow product. The temperature-resistant zinc iron yellow produced by the method has the advantages of high staining power and bright color. Other metal ions are doped to change the original crystal structure of common ferrite yellow, so that the temperature resistance can reach 250-280 DEG C.

Description

technical field [0001] The invention relates to the field of preparation of iron oxide pigments, in particular to a method for preparing temperature-resistant iron oxide yellow. The temperature-resistant iron yellow prepared by the method is mainly suitable for medium and low temperature fields such as plastics, rubber and ceramics. Background technique [0002] Iron oxide yellow is the second largest iron oxide pigment in terms of output and consumption after iron oxide red. It is widely used in the fields of plastics, rubber, paints and inks. It is also the preferred choice for iron red, iron black, magnetic iron oxide and industrial catalysts. raw material. Iron oxide yellow, also known as hydroxyl iron, referred to as iron yellow, the chemical formula is Fe 2 o 3 ·H 2 O or α-FeOOH, its color varies from lemon to yellow-orange depending on the grain size, and the particle size is 0.5-2 μm. It has good hiding power, tinting power, light resistance, atmospheric resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/00
CPCC01G49/0063C01P2006/90
Inventor 王迪刘仲明陈丽娜
Owner ZHEJIANG QICAI ECO TECH CO LTD
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