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Preparation method of calix[8]arene modified soybean protein fiber adsorbent

A soybean protein fiber and protein fiber technology, applied in the field of environment and chemistry, can solve problems such as unfavorable operation, environmental pollution, loss of calixarene, and achieve the effect of solving the problem of loss, good desorption performance and good adsorption selection.

Inactive Publication Date: 2019-07-23
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Calixarene is directly used in solvent extraction for the loss of calixarene, and at the same time toxic organic solvents are used, which causes environmental pollution and is not conducive to operation. In this application, calixarene is linked to the biological skeleton as an active group to overcome the above shortcomings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Soybean protein fiber pretreatment: Soak 20g of soybean protein fiber with a particle size between 1.5 and 2.5mm in 320mL of a mixed solution of 2mol / L sulfuric acid and 1.0mol / L ammonium persulfate, soak at room temperature for 5 hours, and then boil After cooling for 20 minutes, filter, wash with deionized water until neutral, separate solid and liquid, and dry to obtain pretreated soybean protein fiber;

[0020] (2) Aminated soybean protein fiber: In the reactor, add deionized water: 150mL, propylenediamine: 14g, urea: 14g, heat and stir to dissolve, pretreated soybean protein fiber: 22g, at 60±2℃ Constant temperature, stirring, and reflux reaction for 3 hours. After cooling, wash with deionized water, separate solid and liquid, and dry to obtain aminated soybean protein fiber;

[0021] (3) Preparation of calix[8]arene modified soybean protein fiber adsorbent: In the reactor, add methanol: 168mL, thionyl chloride: 21mL, tert-butyl calix[8]arene: 14g, stir to diss...

Embodiment 2

[0023] (1) Soybean protein fiber pretreatment: Soak 50g of soybean protein fiber with a particle size between 1.5 and 2.5mm in 900mL of a mixed solution of 2mol / L sulfuric acid and 1.0mol / L ammonium persulfate, soak at room temperature for 4 hours, and then boil After cooling for 20 minutes, filter, wash with deionized water until neutral, separate solid and liquid, and dry to obtain pretreated soybean protein fiber;

[0024] (2) Aminated soybean protein fiber: In the reactor, add deionized water: 300mL, propylenediamine: 24g, urea: 32g, heat and stir to dissolve, pretreated soybean protein fiber: 48g, at 60±2℃ Constant temperature, stirring, and reflux reaction for 3 hours. After cooling, wash with deionized water, separate solid and liquid, and dry to obtain aminated soybean protein fiber;

[0025] (3) Preparation of calix[8]arene modified soybean protein fiber adsorbent: In the reactor, add methanol: 320mL, thionyl chloride: 40mL, tert-butyl calix[8]arene: 32g, stir to diss...

Embodiment 3

[0027] (1) Soybean protein fiber pretreatment: Soak 40g of soybean protein fiber with a particle size between 1.5 and 2.5mm in 600mL of a mixed solution of 2mol / L sulfuric acid and 1.0mol / L ammonium persulfate, soak at room temperature for 6 hours, and then boil After cooling for 20 minutes, filter, wash with deionized water until neutral, separate solid and liquid, and dry to obtain pretreated soybean protein fiber;

[0028] (2) Aminated soybean protein fiber: In the reactor, add deionized water: 152mL, propylenediamine: 16g, urea: 12g, heat and stir to dissolve, pretreated soybean protein fiber: 20g, at 60±2℃ Constant temperature, stirring, and reflux reaction for 3 hours. After cooling, wash with deionized water, separate solid and liquid, and dry to obtain aminated soybean protein fiber;

[0029] (3) Preparation of calix[8]arene modified soybean protein fiber adsorbent: In the reactor, add methanol: 172mL, thionyl chloride: 18mL, tert-butyl calix[8]arene: 12g, stir to diss...

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Abstract

The invention discloses a preparation method of a calix[8]arene modified soybean protein fiber adsorbent. The preparation method is characterized by comprising steps as follows: pretreating soybean protein fiber with a 2 mol / L sulfuric acid and 1.0 mol / L ammonium persulfate mixed solution to obtain pretreated soybean protein fiber; aminating the pretreated soybean protein fiber with propylene diamine and urea to obtain aminated soybean protein fiber; then, adding 64%-68% of methanol, 15%-18% of thionyl chloride and 4%-8% of tert-butyl calix[8]arene, stirring the mixture for dissolution, adding10%-12% of the ammonified soybean protein fiber, performing stirring and reflux reaction at the constant temperature of 60 DEG C plus / minus 2 DEG C for 6 h, washing a product with deionized water tobe neutral, and performing solid-liquid separation and drying to obtain the calix[8]arene modified soybean protein fiber adsorbent. The adsorbent has very high adsorption capacity for pyronin, has specificity, low cost and high mechanical strength, can be reused for 10 times or more and is easy to separate.

Description

technical field [0001] The invention relates to a preparation method of a modified magnetic biosorbent, in particular to a preparation method of a calix[8]arene-modified soybean protein fiber adsorbent and the application of adsorption, separation and enrichment of pyrrored, belonging to environment and chemistry technology field. . Background technique [0002] Pyrored, molecular formula is C 17 h 19 ClN 2 O. Pyrored makes RNA appear red, which is often used to detect the distribution of RNA in cells. Basic dyes, which can combine with DNA and RNA in cells to present different colors. It is often mixed with methyl green to form methyl green-pyronin. When methyl green and pyronin are used as mixed dyes, methyl green can selectively combine with DNA in chromatin to display green or blue; Selective binding to RNA in the nucleolus and cytoplasm is shown in red. The reason may be that there is competition in the mixed dye solution of the two dyes, and the two nucleic acid ...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30
CPCB01J20/24
Inventor 李慧芝翟玉博李冬梅
Owner UNIV OF JINAN