Nanometer ferroferric oxide pigment composition and production method thereof

A technology of ferroferric oxide and pigment composition, applied in the field of pigments, which can solve problems such as the inability to apply transparent systems, easy contamination of products, uneven material particles, etc., and achieve the effects of uniform particles, shortening the production process, and reducing energy consumption

Inactive Publication Date: 2019-04-16
赤峰盛森硅业科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, Fe produced by this method 3 o 4 The microscopic configuration is rod-shaped, and the application of the magnetic fluid in the pigment tends to cause uneven material particles, which cannot be applied in a transparent system, and the suspension is in the water phase and cannot be mixed with the organic pigment.
[0008] The above-mentioned various preparation processes involve processes such as filtration, washing, drying, and crushing in the process of separating nano-Fe3O4. These processes lead to long production processes, high energy consumption, and products that are easily polluted.

Method used

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  • Nanometer ferroferric oxide pigment composition and production method thereof
  • Nanometer ferroferric oxide pigment composition and production method thereof
  • Nanometer ferroferric oxide pigment composition and production method thereof

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Embodiment 1

[0041] as attached figure 1 Shown, the present invention discloses a kind of production method of nanometer iron ferric oxide pigment composition, comprises the steps:

[0042] Step 1. Under the action of an external magnetic field, the magnetic field intensity is controlled at 100A / m, and 1 molar part of FeCl 2 The raw materials are added to a container placed in a magnetic field, dissolved in water to obtain FeCl with a mass fraction of 5%. 2 solution;

[0043] Step 2, under the action of an external magnetic field, to the FeCl in step 1 2 The solution is added to 20% NaOH solution, the molar ratio of OH - / Fe 2+ =2.1, stirred for 20min to obtain ferrous hydroxide suspension;

[0044] Step 3, under the action of an external magnetic field, feed air into the ferrous hydroxide suspension in step 2, and control the oxidation rate to be 2% / min, so that the ferrous iron in the ferrous suspension is oxidized to iron black precipitation;

[0045] Step 4. Under the action of ...

Embodiment 2-9

[0050] as attached Figure 2-9 Shown, a kind of production method of nanometer iron ferric oxide pigment composition, its step is identical with embodiment 1, only is that reaction parameter is different, and concrete parameter is as follows table 1:

[0051]

[0052]

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Abstract

The invention relates to the technical field of pigments, in particular to a nanometer ferroferric oxide pigment composition and a production method thereof. Under the action of an externally appliedmagnetic field, FeCl2 is dissolved in water and stirred under the alkaline condition, air is introduced, Fe2<+> is oxidized into ferroferric oxide, and the pH value is adjusted to the acidity; then organic acid salt is added, after stirring is carried out, organic acid is added, the ferroferric oxide enters an oil phase, and the oil phase is separated out, that is, a ferroferric oxide compositionproduct. The nanometer ferroferric oxide pigment composition and the production method thereof have the advantages that the produced nanometer ferroferric oxide crystal form is in a cube shape, particles are uniform, no agglomeration phenomenon appears, and the nanometer ferroferric oxide pigment composition can be applied to a transparent system; the production energy consumption is low, and thestability of the product is high.

Description

technical field [0001] The invention relates to the technical field of pigments, in particular to a nanometer iron ferric oxide pigment composition and a production method thereof. Background technique [0002] Nano iron ferric oxide is also known as iron black, magnet, magnetic iron oxide, etc. It is insoluble in water, lye, ethanol and benzene and other organic solvents, and easily soluble in acid. Widely used in magnetic materials, multifunctional materials, catalytic materials and medical fields. [0003] The chemical methods currently used to prepare nano-ferric oxide are mainly precipitation method, hydrothermal / solvothermal method, sol-gel method and so on. [0004] Precipitation method is the most common method, which is mainly to mix Fe2+ and Fe3+ salt solutions in a certain proportion, use lye as a precipitant, add organic matter as a surfactant, and partly need to add a reducing agent to prevent Fe 2+ oxidized to Fe 3+ , at a certain temperature and pH value, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/24C09C3/08C09C3/04
CPCC09C1/24C09C3/006C09C3/04C09C3/08
Inventor 李亚茹韩云峰王锡波成光明
Owner 赤峰盛森硅业科技发展有限公司
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