Ceramic silicon iron red pigment mainly prepared from laterite

A main raw material, ceramic silicon technology, applied in the field of ceramic ferrosilicon red material, can solve the problems of only being used for ceramic blanks and low iron content, and achieve the effects of low cost, pure color development and high yield

Inactive Publication Date: 2015-04-29
JINGDEZHEN CERAMIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to other impurities and low iron content of natural raw materials, this pigment can often only be used for ceramic blanks

Method used

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  • Ceramic silicon iron red pigment mainly prepared from laterite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Formula: 93.7% red clay, 6.3% iron oxide, plus 3% borax as a mineralizer

[0018] (1) Weigh the ingredients according to the formula, mix them and pass through an 80-mesh sieve;

[0019] (2) The ball is a zirconia ball with a diameter of 5 mm, the mass ratio of the ball to material is 20:1, the speed of the ball mill is 300 rpm, and the ball is dry-milled with a high-energy ball mill for 10 hours;

[0020] (3) Take out the powder obtained in (2), put it into a corundum crucible, and put it into an electric furnace for roasting. The initial temperature is room temperature, and the temperature is raised to 1150°C in 6 hours, kept for 2 hours, and cooled naturally to obtain a powdered color product.

Embodiment 2

[0022] Formula: 93.7% red clay, 6.3% iron oxide, plus 3% CaF 2 as a mineralizer

[0023] (1) Weigh the ingredients according to the formula, mix them and pass through an 80-mesh sieve;

[0024] (2) The ball is a zirconia ball with a diameter of 3 mm, the mass ratio of the ball to material is 30:1, the speed of the ball mill is 400 rpm, and the ball is dry-milled with a high-energy ball mill for 20 hours;

[0025] (3) Take out the powder obtained in (2), put it into a corundum crucible, and put it into an electric furnace for roasting. The initial temperature is room temperature, and the temperature is raised to 1150°C in 6 hours, kept for 2 hours, and naturally cooled to obtain a powdered color product.

Embodiment 3

[0027] Formula: 93.7% red clay, 6.3% iron oxide, plus 3% NaF as a mineralizer

[0028] (1) Weigh the ingredients according to the formula, mix them and pass through an 80-mesh sieve;

[0029] (2) The ball is a zirconia ball with a diameter of 1 mm, the mass ratio of the ball to material is 40:1, the speed of the ball mill is 450 rpm, and the ball is dry-milled with a high-energy ball mill for 30 hours;

[0030] (3) Take out the powder obtained in (2), put it into a corundum crucible, and put it into an electric furnace for roasting. The initial temperature is room temperature, and the temperature is raised to 1150°C in 6 hours, kept for 2 hours, and cooled naturally to obtain a powdered color product.

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Abstract

The invention discloses a ceramic silicon iron red pigment mainly prepared from laterite. Laterite and ferric oxide used as raw materials and an additional mineralizer are proportioned, mixed, screened, subjected to mechanochemical ball milling, and roasted to obtain the product. The cheap laterite used as the main raw material and a small amount of Fe2O3 chemical raw material are combined with the mechanochemical process to prepare the favorable-coloration ceramic silicon iron red pigment. Compared with the existing preparation method of the silicon iron red pigment, the method disclosed by the invention has the advantages of simple technique, no environment pollution, high yield, low energy consumption, low cost, pure color development and the like, and thus, has broad market prospects.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials (ceramics), and in particular relates to a ceramic ferrosilicon red material prepared from laterite as a main raw material. Background technique [0002] Ferrosilicon red material is a ceramic-wrapped color material that can present a bright desert red tone in the green body and is resistant to high temperatures. Its main chemical composition is SiO 2 It acts as a carrier in the color material, similar to ZrSiO in zirconium iron red material 4 The role of crystals. It is SiO 2 As the wrapping phase, SiO is used 2 Microcrystalline phase and SiO 2 Glass Relative Colorant Fe 2 o 3 Wrapped so as to play a role in high temperature stability. while Fe 2 o 3 As a colorant, it is the main component of the coloring of the pigment. The main components of natural ferrosilicon red material are silicon and iron, and also contain a small amount of aluminum. Its coloring mechanism is: c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/85
Inventor 卢希龙曹春娥
Owner JINGDEZHEN CERAMIC UNIV
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