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Formula of high temperature-resistant magnesium ferrite orange-yellow pigment and preparation process thereof

A preparation process and technology of magnesium ferrite, applied in the fields of iron compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of poor thermal stability of ordinary iron oxide yellow pigments, and achieve the effect of excellent dispersion performance

Inactive Publication Date: 2012-06-20
南通宝聚颜料有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Benefits of technology

This patented material was developed by researchers working on iron oxide particles called Magnetite Black Pearles that were found to have strong antimony effectiveness against certain types of bacteria such as Escherichia coli or Salmonella enteritidis. These nanoparticle compositions also had improved stability during storage over time compared with traditional organic colorants like red dye powders. They could find use for various applications including construction materials, paints, coating films, cerams, etc., which require durability without harmful chemical agents.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the performance characteristics of common ironsoxyyellow while maintaining their thermostability during use at elevated temperatures.

Method used

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  • Formula of high temperature-resistant magnesium ferrite orange-yellow pigment and preparation process thereof

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Embodiment 1

[0014] Weigh 40 grams of industrial-grade activated magnesium oxide and 160 grams of iron yellow filter cake (dry basis) and place them in a 1200ml stainless steel cylinder (Φ100mm*154mm), then add 0.6 grams of sodium silicate additive, add water to dilute to about 600ml, and At room temperature, use high-speed dispersion (dispersion blade diameter Φ50mm, 4500 rpm) for beating, and the mixing time can be controlled at 15 minutes. After suction filtration, drying, roasting reaction (900°C, 30 minutes), and pulverization, an orange-yellow tone high-temperature-resistant magnesium ferrite pigment can finally be obtained.

[0015] The following is the final result obtained by the related process of embodiment 1-9 implemented according to the above steps:

[0016] Attachment: Table 1

[0017]

[0018] Table 1 is the measured value of the L, a, b chromaticity system corresponding to this pigment under different formulations and calcination temperature conditions. From the measu...

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Abstract

The invention discloses a preparation process of an orange-yellow high temperature-resistant magnesium ferrite pigment, which comprises the following steps of: mixing a certain amount of iron oxide yellow filter cakes with industrial activity magnesium oxide and simultaneously adding an assistant playing dispersion and anti-sintering roles to carry out batching, pulping, high-speed dispersion, suction filtration, drying, roasting reaction and crushing to obtain the orange-yellow high temperature-resistant magnesium ferrite pigment. The preparation process has the advantage that the needle iron yellow fresh filter cakes with good reaction activity and grain sizes controlled within a certain range and a certain specification of active magnesium oxides produced by the company are preferably selected to be pulped and mixed by a wet process. The invention has the beneficial effects that the production process flow can be greatly simplified; the preparation process is easy in operation, high in yield and low in cost; and the prepared product is pure in color and is good in dispersibility.

Description

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Claims

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Application Information

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Owner 南通宝聚颜料有限公司
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