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Brown porous inorganic solid pigment synthesis method

A technology of inorganic solids and synthesis methods, applied in inorganic pigment processing, chemical instruments and methods, fibrous fillers, etc., can solve the problem of affecting color chromaticity and stability, easily changing the adsorption amount of organic dyes, affecting the distance between compounds and adsorption space, etc., to achieve the effect of stable adsorption capacity, increased specific surface area, and no pollution to the environment

Inactive Publication Date: 2015-08-26
ZHEJIANG SHUREN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the existing literature and patents, the method of using layered clay minerals as raw materials to synthesize pigments is based on ion exchange reactions to embed colored organic matter into clay Between the layers, the organic matter between the layers supports the inorganic layer of the layered silicate, and there is an electrostatic interaction between the layer and the organic matter. In this case, any change in the composition of the layer will affect The interlayer distance to the compound and the adsorption space lead to changes in the adsorption amount of layered inorganic clay minerals to organic dyes, which ultimately affects the chromaticity and stability of the color

Method used

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Examples

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Embodiment 1

[0020] At room temperature, 38.3 milliliters of water glass solution is added dropwise in the aqueous solution that is dissolved with 9.26 gram of nickel chloride hexahydrate and 1.35 gram of ferric chloride hexahydrate, vigorously stirs during the dropping process, the molar proportion of various raw materials is : iron in ferric chloride: silicon in water glass: nickel in nickel chloride = 1: 7.8: 8.1, after stirring for 10 minutes, add dropwise 0.1mol / L sodium hydroxide solution to the solution to adjust the pH to 8.5, continue to stir, then transfer the obtained tan turbid liquid to a stainless steel reactor and seal it, react at 270°C for 20 hours, then wash, filter, and dry to obtain tan saponite; take 10 grams of the above-mentioned synthesized iron Nickel saponite is added to a pillar solution formed by adding 13 polyhydroxy aluminum containing 25 mmoles of aluminum (the molecular formula of 13 polyhydroxy aluminum is [AlO 4 Al 12 (OH) 24 (H 2 O) 12 ] 7+ , the con...

Embodiment 2

[0022] At room temperature, 34.4 milliliters of water glass solution will be added dropwise to the aqueous solution in which 8.71 grams of nickel nitrate hexahydrate and 1.35 grams of ferric chloride hexahydrate are dissolved, vigorously stirred during the dropping process, and the molar ratio of various raw materials is : iron in ferric chloride: silicon in water glass: nickel in nickel nitrate = 1.0: 7.0: 6.0, after stirring for 20 minutes, sodium hydroxide solution was added dropwise in the solution to adjust the pH to 9.0, continue to stir, and then The tan turbid liquid obtained is transferred to a stainless steel reactor and sealed, reacted at 290°C for 60 hours, then washed, filtered, and dried to obtain tan saponite; 10 grams of the above-mentioned synthetic iron-nickel saponite was added to the Pillar solution formed by 13 polyhydroxyaluminum with 50 mmoles of aluminum (13 polyhydroxyaluminum molecular formula is [AlO 4 Al 12 (OH) 24 (H 2 O) 12 ] 7+ , the concent...

Embodiment 3

[0026] At room temperature, 21.1 milliliters of water glass solution is added dropwise in the aqueous solution that is dissolved with 5.25 grams of nickel sulfate hexahydrate and 1.35 grams of ferric chloride hexahydrate, vigorously stirs during the dropping process, and the molar ratio of various raw materials is: Iron in ferric chloride: silicon in water glass: nickel in nickel sulfate = 1:4.3:4, after stirring for 30 minutes, add sodium hydroxide solution dropwise to the solution, adjust the pH to 10.0, continue stirring, and then add The tan turbid liquid obtained is transferred to a stainless steel reactor and sealed, and reacted for 48 hours at 285° C., then washed, filtered, and dried to obtain tan saponite; 10 grams of the above-mentioned synthetic iron-nickel saponite was added to the A pillared solution prepared by millimoles of aluminum thirteen polyhydroxyaluminum (the molecular formula of thirteen polyhydroxyaluminum is [AlO 4 Al 12 (OH) 24 (H 2 O) 12 ] 7+ , ...

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Abstract

The present invention belongs to a brown porous inorganic solid pigment synthesis method, which comprises: uniformly mixing an iron salt, a nickel salt, and water glass, adjusting the pH value to 8.5-10.5, stirring vigorously, transferring into to a stainless steel reaction kettle, reacting for 20-130 h, washing, filtering, and drying to obtain brown soapstone; and adding the obtained iron-nickel soapstone to a prepared pillared solution containing alumina sol or trideca polyhydroxy aluminum, aging for 0.5-2.5 h at a temperature of 50-80 DEG C, carrying out filtering, washing and drying on the obtained mixture, and heating for 1.5-5 h at a temperature of 150-310 DEG C to obtain the brown porous inorganic solid compound pigment. The brown porous inorganic solid pigment of the present invention does not contain toxic substances, has characteristics of stability, light sunning resistance, washing resistance, and large specific surface area, can be used for decoration products, cosmetics, paper packing and other fields, and can further be used as the solid sorbent, the decorative pigment, the ink additive, the drying agent, and the like.

Description

technical field [0001] The invention relates to a method for synthesizing a brown porous inorganic solid pigment. Background technique [0002] Porous solid pigment is a kind of special-purpose material. This kind of material can not only be used as colorant, but also can absorb organic fuel, water, gas and metal ions. For example: when making photo-quality inkjet printing paper, a layer of porous pigment is coated on the printing paper surface to form a good ink-receiving layer, thereby improving the absorption capacity of ink and reducing ink loss. diffusion. This is very beneficial to improving printing parameters such as resolution, printing density, and true roundness, and improving printing effects. In addition, porous pigments can also be used as decorative pigments. ink additives, etc. At present, there are few varieties of porous solid pigments, and the more common ones mainly include carbon black, porous calcium carbonate and porous latex particles. [0003] I...

Claims

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Application Information

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IPC IPC(8): C09C1/28C09C3/06B01J20/12C09D11/037
Inventor 王智敏沈素媚申秀英刘子阳许惠英
Owner ZHEJIANG SHUREN UNIV
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