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Method for rapidly preparing efficient adsorbent with low cost by adopting organosilicone high-boiling residue

A technology of high boiling matter and organosilicon, applied in chemical instruments and methods, inorganic chemistry, alkali metal compounds, etc., can solve problems such as safety hazards and environmental hazards, and achieve the effects of simple operation, short reaction cycle, and low cost

Inactive Publication Date: 2015-04-22
JIANGSU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These organic silicon high boiling substances are easily decomposed into strong acids and flammable and explosive products due to contact with water. If they are not handled properly, they will easily cause safety hazards and harm to the environment.

Method used

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  • Method for rapidly preparing efficient adsorbent with low cost by adopting organosilicone high-boiling residue
  • Method for rapidly preparing efficient adsorbent with low cost by adopting organosilicone high-boiling residue
  • Method for rapidly preparing efficient adsorbent with low cost by adopting organosilicone high-boiling residue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Distill industrial-grade organosilicon high boilers, and distill out fractions with a boiling range of 116°C ~ 125°C for use; weigh 3.9g of sodium metasilicate nonahydrate (Na 2 SiO 3 9H 2 O), added to 26 mL of deionized water, stirred in a water bath at 50 °C for 20 min, and the solution was cooled for later use;

[0025] Mix 1 mL of organic silicon high boiler with a boiling range of 116°C to 125°C and 5 mL of absolute ethanol in a beaker, add a magnet to seal the beaker, stir thoroughly for 3 min, add the above sodium metasilicate solution drop by drop, and adjust The pH was 6. After the gel was formed, distilled water was added, soaked and aged in a water bath at 50 °C for 6 h, dried at 40 °C under normal pressure for 6 h, and finally cooled to room temperature to obtain a modified silicon-based adsorption material.

[0026] Such as figure 1 Shown is the silicon-based adsorbent nitrogen adsorption-desorption isotherm prepared by Example 1;

[0027] Such as fi...

Embodiment 2

[0030] Distill industrial-grade organosilicon high boilers, and distill out fractions with a boiling range of 126°C to 135°C for use; weigh 3.9 g of sodium metasilicate nonahydrate (Na 2 SiO 3 9H 2 O), added to 26 mL of deionized water, stirred in a water bath at 50 °C for 20 min, and the solution was cooled for later use;

[0031] Mix 1 mL of organic silicon high boiler with a boiling range of 126°C to 135°C and 3 mL of absolute ethanol in a beaker, add a magnet to seal the beaker, stir thoroughly for 3 min, add the above sodium metasilicate solution drop by drop, adjust The pH was 8. After the gel was formed on standing, distilled water was added, soaked and aged in a water bath at 50 °C for 12 h, dried at 80 °C under normal pressure for 24 h, and finally cooled to room temperature to obtain a modified silicon-based adsorption material.

Embodiment 3

[0033] Distill industrial-grade organosilicon high boilers, and distill out fractions with a boiling range of 75°C to 155°C for use; weigh 3.9 g of sodium metasilicate nonahydrate (Na 2 SiO 3 9H 2 O), added to 23mL of deionized water, stirred in a water bath at 50°C for 20 min, and the solution was cooled for later use;

[0034] Mix 1 mL of organic silicon high boiler with a boiling range of 116°C to 125°C and 8 mL of absolute ethanol in a beaker, add a magnet to seal the beaker, stir thoroughly for 3 min, add the above sodium metasilicate solution drop by drop, adjust The pH was 6. After the gel was formed, distilled water was added and soaked in a water bath at 50 °C for aging for 6 h, dried at 40 °C under normal pressure for 6 h, and finally cooled to room temperature to obtain a modified silicon-based adsorption material.

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Abstract

The invention discloses a method for rapidly preparing an efficient adsorbent with low cost by adopting organosilicone high-boiling residue. The invention belongs to the technical field of preparation of new materials and in particular relates to a method for rapidly preparing an efficient adsorbent with low cost by adopting organosilicone high-boiling residue. The method for rapidly preparing the efficient adsorbent comprises the following steps of: weighing right amount of sodium metasilicate nonahydrate (Na2SiO3.9H2O), adding the sodium metasilicate nonahydrate into deionized water, and stirring for spare use; treating industrial grade organic silicon byproduct, namely high-boiling residue, taking right amount of high-boiling residue and absolute ethyl alcohol, mixing high-boiling residue with absolute ethyl alcohol in a beaker, adding magnetons, sealing the beaker, fully stirring, dropwise adding the sodium metasilicate solution, regulating pH and standing to form gel, and washing and drying to obtain a modified silicon substrate adsorbing material. The method for rapidly preparing the efficient adsorbent has the advantages of simple process, low cost, easy operation and short reaction period and is applicable to industrial production.

Description

technical field [0001] The invention belongs to the technical field of new material preparation, and in particular relates to an ultra-low-cost high-efficiency adsorption material rapidly prepared by organosilicon high boilers. Background technique [0002] In recent years, organosilicon materials have attracted widespread attention due to their excellent properties and unique functions such as high temperature resistance, ozone resistance, and weather resistance, and the organosilicon industry has developed rapidly. With the rapid increase in the production capacity of organosilicon monomer methylchlorosilane, the number of its by-products is also increasing, including methyltrichlorosilane, azeotrope, high boiler, low boiler, slurry residue, etc. Due to the limited market capacity, only a small amount of organic silicon high boilers can be used every year. These organic silicon high boiling substances are easily decomposed into strong acids and flammable and explosive pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30
Inventor 谢吉民宗瑟凯丁当仁魏巍崔恒律冯金朱建军高拚
Owner JIANGSU UNIV
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