Preparation method of rare earth sulfide pigment with adjustable color
A rare earth sulfide and pigment technology, applied in chemical instruments and methods, inorganic pigment treatment, fibrous fillers, etc., can solve the problems of unfavorable protection of rare earth resources, etc., and achieve the effect of rich colors, reduced usage, and high brightness
Inactive Publication Date: 2014-08-13
INNER MONGOLIA UNIVERSITY
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AI Technical Summary
Problems solved by technology
In addition, although my country is rich in rare earth resources, they are the country's strategic reserve resources, and a large amount of them are used as pigments, which is not conducive to the protection of rare earth resources.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0015] Dissolve 0.1mol of lanthanum nitrate and 0.01mol of anhydrous sodium carbonate in 20ml of water; then add 0.25mol of SBA-15 into the above solution, ultrasonically disperse and dry; calcinate the product at 500°C for 3 hours and vulcanize at 800°C After 2 hours, a light yellow rare earth composite pigment was obtained.
Embodiment 2
[0017] Lanthanum nitrate was changed to cerium sulfur nitrate, and other conditions were the same as in Example 1 to obtain an orange-red rare earth composite pigment.
Embodiment 3
[0019] Change SBA-15 to mesoporous silica, and other conditions are the same as in Example 1 to obtain light yellow rare earth composite pigment.
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The invention provides a preparation method of a rare earth sulfide pigment with adjustable color. The preparation method comprises the following experimental steps: preparing alkali metal salt and rare earth salt into a solution in a certain proportion by taking distilled water as a solvent; placing a certain quantity of materials with hole-shaped structures into the solution, ultrasonnically dispersing, and drying; calcining and sulfurizing a dried mixture to obtain the rare earth sulfide pigments with different colors. The experimental method provided by the invention is simple, and raw materials are easily available; an inorganic substance with the hole-shaped structure is taken as an additive, so that the color of the rare earth sulfide pigment is extended, the brightness is improved, the rare earth usage amount is reduced and the cost is lowered.
Description
technical field [0001] The invention relates to a preparation method of a rare earth sulfide pigment with adjustable color, belonging to the field of preparation of green and environment-friendly inorganic pigments. Background technique [0002] Our life is inseparable from pigments of various colors, but most of the traditional inorganic pigments contain toxic and harmful elements, such as chromium, lead, and cadmium pigments. These pigments are easy to release harmful substances and seriously pollute the environment. With the continuous improvement of environmental protection requirements, the use of these traditional inorganic pigments has been continuously restricted. With the increasingly severe environmental situation in our country, these inorganic pigments will be eliminated, and need to find An environmentally friendly substitute product is imminent. Cubic rare earth sesquisulfides have become the preferred materials to replace traditional pigments due to their exc...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C09C1/00C09C3/06
Inventor 于世泳王东日吴宪江苏海全
Owner INNER MONGOLIA UNIVERSITY