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Preparation method and application of iron oxide red

A technology of iron oxide red and iron ions, applied in the preparation of iron compounds, iron oxide, iron oxide/iron hydroxide, etc., can solve the problems of uneven coloring, inorganic pigments are kneaded into agglomerates, difficult to disperse, etc. Simple process and low cost effect

Pending Publication Date: 2020-07-28
福建富仕新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inorganic pigments obtained by the current preparation methods generally have problems such as kneading into agglomerates, long-term agglomeration, difficulty in dispersing in the base material, and uneven coloring.

Method used

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  • Preparation method and application of iron oxide red
  • Preparation method and application of iron oxide red
  • Preparation method and application of iron oxide red

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Add 1000ml of an aqueous solution containing 5% iron ions into the iron extractor, and at 30°C, use tributyl phosphate TBP / sulfonated kerosene (wt)=45:55 as the extraction system, and the oil phase is compared with water O / A = 1:1, after a first-stage extraction, the oil phase containing high-purity iron ions is obtained, and then directly enters the iron oxide red synthesis kettle, and 20% sodium hydroxide solution is added to the system to prepare iron precipitation, and finally iron oxide is obtained through post-treatment red.

Embodiment 2

[0048] Add 1000ml of an aqueous solution containing 20% ​​iron ions into the extractor, and at 30°C, use tributyl phosphate TBP / sulfonated kerosene (wt)=45:55 as the extraction system, and the oil phase water ratio O / A= 1:1, after two stages of extraction, the oil phase containing high-purity iron ions is obtained, and then directly enters the iron oxide red synthesis kettle, and 20% sodium hydroxide solution is added to the system to prepare iron precipitation, and finally the iron oxide red is obtained through post-processing .

[0049] The component analysis of the iron oxide red prepared by the present embodiment is as following table 1:

[0050] Table 1 Iron oxide red composition (ppm)

[0051] Fe 2 o 3 (%)

Ca Mg Al mn V Cr Ti Si co 99.89 1.2 1.1 1.6 0.9 - - - 0.02 0.01 Ni Cu Zn Cd Hg Pb As Se Sb Ba 0.37 0.54 0.59 - - - - - - -

[0052] Note: -: not detected

[0053] As can be seen from...

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Abstract

The invention discloses a preparation method and application of iron oxide red. The preparation method of the iron oxide red comprises the following steps of: transferring iron ions from an aqueous solution containing the iron ions into an oil phase by adopting an extracting agent, adding a precipitant into the separated oil phase to form iron precipitate, and then treating the iron precipitate toobtain the iron oxide red. The synthesized iron oxide red is used in the fields of paint, printing ink, plastic, leather coloring, wallpaper, powder coating, cosmetics, food and the like.

Description

technical field [0001] The invention relates to the technical field of preparation of iron oxide red, in particular to a preparation method and application of iron oxide red. Background technique [0002] Iron oxide red (also known as iron red), the chemical composition is α-Fe 2 o 3 , containing 70% iron and 30% oxygen. Iron oxide red is an important chemical pigment, and my country is the world's largest producer of iron oxide pigments. At present, there are two types of methods for producing iron oxide red: dry method and wet method. The dry method includes green vitriol calcination method, iron yellow, iron black calcination method, etc., and the wet method includes sulfate, nitrate wet method, mixed acid method, and ammonia method. Wait. The raw materials used are iron filings, iron phosphorus, steel rolling pickling waste, and ferrous sulfate formed by the production of titanium dioxide. This type of method requires a long process, high cost, and requires a large ...

Claims

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Application Information

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IPC IPC(8): C01G49/06C09D167/00C09D7/61C08L23/12C08K3/22
CPCC01G49/06C01G49/0009C09D167/00C09D7/61C08K3/22C01P2004/03C01P2002/72C01P2006/80C01P2006/19C08K2003/2272C08L23/12
Inventor 费明鲍领翔陈刘武超谢秉昆
Owner 福建富仕新材料有限责任公司
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