A method for synthesizing white potassium mica using red mixed clay minerals

A technology of clay minerals and potassium mica, which is applied in silicon compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of no research reports and no precedents for industrial applications, etc., and achieve the expansion of application fields, good batch stability, The effect of simple preparation process

Active Publication Date: 2022-07-12
INNER MONGOLIA UNIVERSITY
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  • Description
  • Claims
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Problems solved by technology

Chinese patent CN105664843B discloses a method of using attapulgite clay to prepare micro-nano-mesoporous adsorption microspheres. The adsorption performance of attapulgite is improved by introducing magnesium silicate, but the obtained product is still red
[0007] However, there is no relevant research report and no precedent for industrial application to prepare white potassium mica with better whiteness by one-pot reaction of red mixed clay minerals.

Method used

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  • A method for synthesizing white potassium mica using red mixed clay minerals
  • A method for synthesizing white potassium mica using red mixed clay minerals
  • A method for synthesizing white potassium mica using red mixed clay minerals

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Embodiment 1

[0034] 100kg of red mixed clay minerals (containing attapulgite 37.3%, illite 9.6%, chlorite 12.1%, montane mixed clay 6.2%, calcite content 7.9%, dolomite 2.8%, hematite 4.9%) pulverized After passing through a 200-mesh sieve, 25 kg of an aqueous solution containing 5% (mass fraction) hydrogen peroxide and 2.5% (mass fraction) nitric acid was sprayed into it, and the mixture was stirred and mixed well. Then, the wetted ore powder was subjected to three-roll extrusion grinding for 2 times, and then air plasma ball milling (discharge voltage: 12kV; discharge power: 2.5KW, rotating speed: 950rpm) for 30min to obtain an activated solid-state precursor. The solid-state precursor was dispersed in an aqueous solution of 1.80 mol / L sulfamic acid at a solid-liquid ratio of 1:9, and then 25 g of glutamic acid was added as an auxiliary agent. After 10 minutes of ultrasonication, mechanical stirring was performed to make it fully mixed. The hydrothermal reaction was carried out for 11.5h...

Embodiment 2

[0036] 100kg of red mixed clay minerals (containing attapulgite 35.2%, illite 14.5%, chlorite 7.6%, montane mixed clay 3.1%, calcite 18.2%, dolomite 1.5%, hematite 3.2%) were crushed for 200 After mesh sieving, 53.85 kg of an aqueous solution containing 5% (mass fraction) hydrogen peroxide and 2.5% (mass fraction) nitric acid was sprayed into it, and the mixture was stirred and mixed well. Then, the wetted mineral powder was subjected to three-roll extrusion grinding treatment twice, and then air plasma ball milling (discharge voltage was 8kV, discharge power was 1.0KW, and rotational speed was 1450rpm) for 60min to obtain an activated solid precursor. The solid-state precursor was dispersed in a 0.20mol / L ethylenediaminetetraacetic acid aqueous solution according to a solid-liquid ratio of 1:9, and then 100g of glutamic acid was added as a reaction aid. After 10 minutes of ultrasonication, mechanical stirring was performed to make it fully mixed. , and then hydrothermally rea...

Embodiment 3

[0038] 100kg of red mixed clay minerals (containing attapulgite 23.2%, illite 14.5%, chlorite 12.0%, smectite 6.1%, calcite 16.1%, dolomite 2.6%, hematite 4.7%) were crushed for 200 After mesh sieving, spray 35 kg of an aqueous solution containing 5% (mass fraction) hydrogen peroxide and 2.5% (mass fraction) nitric acid, and then mix well. Then, the wetted powder was subjected to three-roll extrusion grinding treatment twice, and then air plasma ball milling (discharge voltage of 10kV, discharge power of 2KW, and rotational speed of 1200rpm) was carried out for 40min to obtain an activated solid precursor. The solid-state precursor was dispersed in a mixed acid aqueous solution containing 0.8mol / L oxalic acid and 0.8mol / L ethylenediaminetetraacetic acid according to a solid-liquid ratio of 1:9, and then 50g of the auxiliary glutamic acid was added, and ultrasonicated for 10 After 10 minutes, mechanical stirring was performed to make it fully mixed, and then hydrothermal reacti...

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Abstract

The application provides a method for synthesizing white potassium mica by utilizing red mixed clay minerals, which belongs to the technical field of deep processing of non-metallic minerals and synthesis of nanomaterials. The method utilizes a simple one-step hydrothermal reaction to convert red mixed clay into white potassium mica, which not only realizes the transformation of red mineral structure to white, but also realizes the transformation of mineral structure. The product has good batch stability, uniform particle size and simple preparation process, and can be potentially used in lubricating materials, polymer material fillers, coatings, lithium-ion battery separator coatings, catalyst carriers, hybrid pigments, antibacterial material substrates and heavy metals, dyes, Antibiotic adsorbents and other aspects are conducive to expanding the application field of red mixed clay minerals, and also helping to achieve high-value utilization of local characteristic and advantageous resources.

Description

technical field [0001] The invention relates to a method for synthesizing white potassium mica by utilizing red mixed clay minerals, and belongs to the technical field of deep processing of non-metallic minerals and synthesis of nanometer materials. Background technique [0002] Clay minerals are a special kind of non-metallic minerals naturally formed by nature. They not only have unique crystal structure and excellent colloid, adsorption, carrier, and reinforcing properties, but also have natural, abundant reserves and environment-friendly synthetic properties. The incomparable advantages of materials. Therefore, as an indispensable and important basic material, clay minerals play an extremely important role in many fields of the national economy, such as agriculture, chemical industry, environmental protection, building materials, life and health, and new materials. [0003] Clay minerals are the dominant and characteristic mineral resources in my country, and the prospe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/42
CPCC01B33/42
Inventor 王文波赵文廷何庆东刘翔宇王雪
Owner INNER MONGOLIA UNIVERSITY
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