Method for preparing yellow pigment by using commonly used color development for replacing rare-earth element praseodymium and vanadium color development

A yellow pigment and rare earth element technology, applied in the field of ceramic coloring and pigments, can solve the problems of weakening competitiveness, rising prices, affecting the normal production of praseodymium vanadium yellow materials, etc., to achieve the effect of expanding the scope of application and sustainable resources

Active Publication Date: 2012-08-08
JIANGXI JINHUAN PIGMENTS
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Problems solved by technology

However, since 2009, the scarcity of praseodymium oxide and vanadium pentoxide and the integration of the rare earth industry have also promoted the return of the value of rare earths. Today, the prices of praseodymium yellow and vanadium zirconium yellow h

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  • Method for preparing yellow pigment by using commonly used color development for replacing rare-earth element praseodymium and vanadium color development
  • Method for preparing yellow pigment by using commonly used color development for replacing rare-earth element praseodymium and vanadium color development
  • Method for preparing yellow pigment by using commonly used color development for replacing rare-earth element praseodymium and vanadium color development

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific experimental examples.

[0028] One of the schemes of the present invention is to replace zirconium praseodymium yellow:

[0029] Zirconium oxychloride, cadmium sulfate, sodium sulfide, highly active white carbon black, fluorine-containing multigroup mineralizers, caustic soda, and zinc chloride are selected as raw materials. The first step adopts the liquid-phase synthesis method, using zinc chloride to dope zinc ions, and the mass percentages of the main control components zirconium oxychloride, cadmium sulfate, sodium sulfide, zinc chloride, and caustic soda are: 67-68%, 11.5% ~12%, 7~8%, 0.5~2%, 11~12%, control the concentration of each material added: 180~200g / ml, 30~34 g / ml, 20~22 g / ml, 2~ 6 g / ml, 30-36 g / ml; zinc chloride is introduced by dissolving in cadmium sulfate, and the pH value is controlled at 5.5-8.5. The second step uses solid-st...

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Abstract

The invention belongs to the technical field of ceramic coloring and pigment and particularly relates to a method for preparing yellow pigment by using commonly used color development for replacing rare-earth element praseodymium and vanadium color development. The method is mainly characterized in that zirconium oxychloride, cadmium sulfate, sodium sulfide, high-activity white carbon black, fluorine-containing multi-component mineralizer, caustic soda flakes and zinc chloride or ferrous chloride are used as raw materials, a technique of doping zinc ions and iron ions in envelope cadmium sulfide pigment is adopted, a solid-liquid combination method is adopted for introducing precursors, novel mineralizer is introduced during high-temperature sintering and the yellow pigment which can replace the rare-earth element praseodymium and the vanadium color development is prepared. The resistant temperature of a product can be improved by 30-50 DEG C on the basis of the resistant temperature of the original zirconium-praseodymium yellow and vanadium-zirconium yellow, the dissolved quantity of cadmium can fully satisfy the international standard, the grain shape is more evenly and grains are spherically distributed and the color development effect is two times of the color development effect of the original product.

Description

[0001] technical field [0002] The invention belongs to the technical field of ceramic coloring and pigments, and in particular relates to a method for preparing yellow pigments by replacing rare earth elements praseodymium and vanadium for color development. Background technique [0003] Praseodymium and vanadium elements can be used as coloring elements, such as zirconium-praseodymium yellow produced directly from praseodymium and vanadium-zirconium yellow produced directly from vanadium, which are the most used rare earth elements in the pigment industry. Zirconium praseodymium yellow and vanadium zirconium yellow are considered to be the best yellow ceramic pigments, which can remain stable up to 1250°C and can be used in one-off or refiring processes. Zirconium-praseodymium yellow is widely used in the coloring of architectural ceramics and daily-use ceramics. It can also be used as an underglaze pigment alone. Its coloring has a blue light and bright colors. It is a r...

Claims

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Application Information

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IPC IPC(8): C04B41/86
Inventor 王又凡周曙光陈仁华闵又红
Owner JIANGXI JINHUAN PIGMENTS
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