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Serine/kaolinite intercalation complex prepared with 1.0nm hydrated kaolinite serving as intercalation precursor and preparation method

A technology of hydrated kaolinite and intercalation compound, which is applied in the direction of silicon compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of low intercalation rate, low reaction temperature, and low concentration, and achieve simple process, The effect of low equipment requirements and fast response speed

Active Publication Date: 2015-02-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, when the concentration of serine solution and the reaction temperature are relatively increased, the amount of precipitated serine crystals also increases, that is, although the intercalation speed is faster at high temperature, the crystallization rate is faster, so that the intercalated Serine molecules are affected by crystallization and do not necessarily increase, so the intercalation rate is not high
On the other hand, when the concentration and temperature are relatively low, although there are relatively few serine crystals precipitated before intercalation, the intercalation rate is not high due to the low solution concentration and low reaction temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Place the lingine crystal in water and mixes and dissolve it to obtain a pure lingine aquatic solution (1), where the concentration of the control solution is 1.0mol / L.

[0038] (2) The D of 1g every 1g 001 = 1.0nm Hydrological Kaolida Powder to add 100ml concentration of 1.0mol / Ler serine hydraulic solution (1), then first reacts with a magnetic mixing response between 10 ° C, then adjust the temperature to 30 ° C, and continue to stir at 2min.Get the reaction generic mixed solution (2).

[0039] (3) Mix the reactive generator solution (2) Divide the upper layer of clearing solution, and finally get the malaxic / kaolin stone plug -in composite powder.

[0040] The laminar spacing of the laminar pitch of the deck of the lord of the kaolin stone plugs in the above steps is D 001 = 0.72nm expand to D 001 = 1.14nm, the obtained liaboline / kaolida plug -in complex is 91%.

Embodiment 2

[0042] (1) Place the lingine crystal in water and mixes and dissolve it to obtain a pure lingine aquatic solution (1), where the concentration of the control solution is 1.5mol / L.

[0043] (2) The D of 1g every 1g 001 = 1.0nm Hydrological Kaolida Powder to add 100ml concentration of 1.5mol / Ler serine hydraulic solution (1), then first reacts with a magnetic mixing reaction between 15 ° C, and then adjust the temperature to 40 ° C.Get the reaction generic mixed solution (2).

[0044] (3) Mix the reactive generator solution (2) Divide the upper layer of clearing solution, and finally get the malaxic / kaolin stone plug -in composite powder.

[0045] The laminar spacing of the laminar pitch of the deck of the lord of the kaolin stone plugs in the above steps is D 001 = 0.72nm expand to D 001 = 1.14nm.

Embodiment 3

[0047] (1) Place the lingine crystal in water and mixes and dissolve it to obtain a pure lingine aquatic solution (1), where the concentration of the control solution is 2.0mol / L.

[0048] (2) The D of 1g every 1g 001 = 1.0nm Hydrological Kaolida Powder to add 100ml concentration of 2.0mol / Ler serine hydraulic solution (1), then first reacts with a magnetic mixing reaction between 20 ° C, then adjust the temperature to 60 ° C, and continue to stir the reaction for 1min.Get the reaction generic mixed solution (2).

[0049] (3) Mix the reactive generator solution (2) Divide the upper layer of clearing solution, and finally get the malaxic / kaolin stone plug -in composite powder.

[0050] The laminar spacing of the laminar pitch of the deck of the lord of the kaolin stone plugs in the above steps is D 001 = 0.72nm expand to D 001 = 1.14nm.

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Abstract

The invention discloses a serine / kaolinite intercalation complex prepared with 1.0nm hydrated kaolinite serving as an intercalation precursor and a preparation method. The preparation method comprises the following steps of: mixing hydrated kaolinite with interlamellar spacing of d001=1.0nm with serine solution; controlling the system to stir for a few minutes at relatively low temperature; and controlling to react for a few minutes at relatively high temperature, thus obtaining the serine / kaolinite intercalation complex. The spacing d001 of kaolinite layers expandes from 1.0nm before intercalating the serine to 1.14nm after intercalating the serine, the intercalating rate is up to 90 to 100%; the serine is arranged as a singe layer between the kaolinite layers in a way of being parallel to a kaolinite lamella; a carboxyl of the serine forms a hydrogen bond together with a hydroxyl on the inner surface of the kaolinite, and an amidogen forms another hydrogen bond together with an oxygen atom of a kaolinite silica layer. The preparation method is simple in preparation process and realizes batch production, and the prepared serine / kaolinite intercalation complex can live stably for a long time.

Description

Technical field [0001] The present invention involves a preparation method of a mryramine / alpine stone plug -in compound, especially the lattice constant D in the direction of a C -axis layer 001 = 1.0nm Hydrological Kaolin Stone is the composite and preparation method of the myrolate / kaolidic stone plug -in composite of the plug -in front drive. Background technique [0002] Kaolin Stone is an important non -metal mineral resources. It is mainly composed of small seal -shaped, tubular, stacked chips and other kaolida mineral minerals. It is widely used in papermaking, ceramics, paint, rubber, plastic, petrochemical, etc.field.Gaoling Stone (AL 2 SI 2 O 5 (OH) 4 ) It is a typical 1: 1 layer -like silicate, consisting of silicon oxygen four sides and aluminum oxygen eight -sides, composed of periodic arrangement in the direction of C axis.Combine.Under certain conditions, some molecules can overcome the inter -layer effects inserting into the alpine stone layer without destroying ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/44
Inventor 杜丕一郑婉周璟马宁韩高荣翁文剑赵高凌沈鸽宋晨路程逵徐刚张溪文
Owner ZHEJIANG UNIV