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Layered mineral and iron polysulfide intercalation composite material and method and application thereof

A technology of layered minerals and polysulfides, applied in chemical instruments and methods, iron sulfide, physical/chemical process catalysts, etc., can solve problems such as low catalytic effect and failure to meet industrial requirements, so as to increase catalytic performance and improve The effect of catalytic ability

Active Publication Date: 2021-02-26
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research on the compounding of mineral materials is relatively extensive, but the catalytic effect after compounding is relatively low, and most of them cannot meet the requirements of the industry

Method used

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  • Layered mineral and iron polysulfide intercalation composite material and method and application thereof
  • Layered mineral and iron polysulfide intercalation composite material and method and application thereof
  • Layered mineral and iron polysulfide intercalation composite material and method and application thereof

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preparation example Construction

[0032] The preparation method of above-mentioned composite material is as follows:

[0033] S1: Put the iron salt in a volatile organic solvent and stir until the iron salt is completely dissolved to obtain an iron salt compound solution. Wherein, the volatile organic solvent can be one of methanol, ethanol, propanol, isopropanol and ethylene glycol, and the iron salt can be ferric chloride, ferrous sulfate, ferrous chloride, ferric fluoride and ferric phosphate kind of.

[0034] S2: Put the reducing agent in deionized water and stir until the reducing agent is completely dissolved to obtain a reducing agent solution. Wherein, the reducing agent can be one of thiourea, sodium thiosulfate, sodium sulfide, sodium disulfide and ammonium sulfide.

[0035] S3: Wash the layered minerals with water, then filter or centrifugally dehydrate, repeat the washing several times to remove the surface impurities of the layered minerals, then dry at 60-80°C, cool to room temperature, and obt...

Embodiment 1

[0043] S1: Put ferric chloride hexahydrate in absolute ethanol and stir until the ferric chloride hexahydrate is completely dissolved to obtain a ferric chloride solution.

[0044] S2: Sodium sulfide is placed in deionized water, and stirred until the sodium sulfide is completely dissolved to obtain a sodium sulfide solution.

[0045] S3: Take talc that is 3 times the weight of ferric chloride hexahydrate in S1, clean the surface impurities of the talc, dry it at 60° C., and cool it to room temperature to obtain a talc sample.

[0046] S4: Mix the talc sample with the ferric chloride solution, wherein the mixing weight ratio of talc and ferric chloride is 1:0.2. After stirring evenly, grind in a grinder for 1-2 hours to obtain mixture A.

[0047] S5: Mix mixture A with sodium sulfide solution, wherein the weight ratio of sodium sulfide to ferric chloride hexahydrate is 1:0.5. After stirring evenly, grind in a grinder for 3-4 hours to obtain mixture B.

[0048] S6: Put the m...

Embodiment 2

[0052] S1: Anhydrous ferric chloride is placed in absolute ethanol, and stirred until the anhydrous ferric chloride is completely dissolved to obtain a ferric chloride solution.

[0053] S2: Sodium thiosulfate is placed in deionized water, and stirred until the sodium thiosulfate is completely dissolved to obtain a sodium thiosulfate solution.

[0054] S3: Take talc that is 3 times the weight of anhydrous ferric chloride in S1, clean the surface impurities of the talc, dry it at 60° C., and cool it to room temperature to obtain a talc sample.

[0055] S4: Mix the talc sample with the ferric chloride solution, wherein the mixing weight ratio of talc and ferric chloride is 1:0.2. After stirring evenly, grind in a grinder for 1-2 hours to obtain mixture A.

[0056] S5: Mix mixture A with sodium thiosulfate solution, wherein the weight ratio of sodium thiosulfate to anhydrous ferric chloride is 1:1. After stirring evenly, grind in a grinder for 3-4 hours to obtain mixture B.

...

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Abstract

The invention discloses a layered mineral and iron polysulfide intercalation composite material and a method and application thereof. The preparation method comprises the following steps of: putting iron salt into a volatile organic solvent to obtain an iron salt compound solution; putting a reducing agent into water to prepare a reducing agent solution; mixing a layered mineral sample with the iron salt compound solution, and performing grinding in a grinder for 1-2 hours to obtain a mixture A; mixing the mixture A with the reducing agent solution, and performing grinding in a grinder for 3-4hours to obtain a mixture B; calcining the mixture B under the protection of inert gas to obtain a mixture C; sequentially adding water, ethanol and CS2 into the mixture C, stirring, cleaning and filtering to obtain a mixture D; and drying the mixture D and cooling to room temperature to obtain the composite material. The composite material disclosed by the invention can replace talc in the fields of microwave catalysis and functional coatings, has a catalytic effect far higher than that of other similar products, is low in cost and has higher chemical activity.

Description

technical field [0001] The invention belongs to the field of catalytic materials, and in particular relates to a layered mineral and iron polysulfide intercalation composite material and its method and application. Background technique [0002] After the talc is purified, the harmful impurities of the original talc are reduced, the safety of its use is improved, and it is widely used in material coating and traditional Chinese medicine. However, talc has limited its application in catalysis due to its low catalytic performance. Low-cost preparation technology and material compounding are effective ways to expand the application field of talc materials. The research on the compounding of mineral materials is relatively extensive, but the catalytic effect after compounding is relatively low, and most of them fail to meet the industrial requirements. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in the prior art, a...

Claims

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Application Information

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IPC IPC(8): B01J27/043B01J37/16B01J37/00B01J37/08C02F1/30C01G49/12C01B33/22C02F101/34C02F101/36
CPCB01J27/043B01J37/16B01J37/0036B01J37/08C02F1/302C01G49/12C01B33/22C01P2004/80C02F2101/345C02F2101/36
Inventor 陶春辉艾曼青叶瑛杜昊秦文莉张楚青陈雪刚蔡巍张平萍
Owner ZHEJIANG UNIV
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