Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of aluminosilicate supported strong-basicity solid alkali

An aluminosilicate and supported technology is applied in the field of preparation of aluminosilicate-supported strong alkaline solid bases, which can solve problems such as limited varieties, and achieve increased application value, large alkali content, and high thermal stability. Effect

Inactive Publication Date: 2016-04-20
SOUTH CHINA UNIV OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, because solid base is a new type of catalyst, the variety of solid base catalysts actually used in industrial production is still very limited.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of aluminosilicate supported strong-basicity solid alkali
  • Preparation method of aluminosilicate supported strong-basicity solid alkali
  • Preparation method of aluminosilicate supported strong-basicity solid alkali

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Preparation of loaded solid base

[0030] 0.75g boehmite and 25.0g sodium hydroxide are dissolved in 15.0g deionized water and stirred by a high-speed homogeneous disperser to form a boehmite sol; 0.2g CTAB (cetyltrimethylammonium bromide) is mixed and homogeneously dispersed to form a gel; then the gel is transferred to a hydrothermal reaction kettle with a filling degree of 75%, and then placed in an electric blast Hydrothermal crystallization at 150°C for 10 hours in a constant temperature drying oven, and naturally cooled to room temperature. The characterization results show that it is aluminosilicate nanoporous material. For the characterization results, see Figure 1a , Figure 1b ; add potassium nitrate so that the doping quality of potassium nitrate is 5% of the mass of the base material after hydrothermal crystallization, add distilled water, disperse through a homogeneous disperser, and after drying, calcinate at 500 ° C for 10 hours to finally prepare so...

Embodiment 2

[0041] 1. Preparation of loaded solid base

[0042]0.75g boehmite and 25.0g sodium hydroxide are dissolved in 15.0g deionized water and stirred by a high-speed homogeneous disperser to form a boehmite sol; 0.2g CTAB is mixed and homogeneously dispersed to form a gel; then the gel is transferred to a hydrothermal reaction kettle with a filling degree of 75%, and then placed in an electric blast constant temperature drying oven for hydrothermal crystallization at 150°C for 10 hours , naturally cooled to room temperature; adding potassium nitrate, so that the doping mass of potassium nitrate is 7.5% of the mass of the base material after hydrothermal crystallization, adding distilled water, homogeneously dispersing, and drying, then calcining at 800°C for 16h, Finally a solid base is prepared.

[0043] 2. Detection of alkali amount and alkali strength of solid alkali

[0044] Determination method is the same as that of Example 1, and the alkali amount of the solid base prepared...

Embodiment 3

[0046] 1. Preparation of loaded solid base

[0047] 0.75g boehmite and 25.0g sodium hydroxide are dissolved in 15.0g deionized water and stirred by a high-speed homogeneous disperser to form a boehmite sol; 0.2g CTAB is mixed and homogeneously dispersed to form a gel; then the gel is transferred to a hydrothermal reaction kettle with a filling degree of 75%, and then placed in an electric blast constant temperature drying oven for hydrothermal crystallization at 150°C for 10 hours , naturally cooled to room temperature; adding potassium nitrate, so that the doping quality of potassium nitrate is 7.5% of the mass of the base material after hydrothermal crystallization, adding distilled water, homogeneously dispersing, and drying, then calcining at 600°C for 14h, Finally a solid base is prepared.

[0048] 2. Detection of alkali amount and alkali strength of solid alkali

[0049] Assay method is the same as that of Example 1, and the alkali amount of the solid base prepared by ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of an aluminosilicate supported strong-basicity solid alkali and belongs to the field of preparation of solid alkalis. The solid alkali is a catalytic material. A strong-basicity aluminosilicate composite solid alkali material, which has stronger basicity, greater alkali amount and more specific distribution of an alkaline center, is prepared by taking an aluminosilicate nano material as a carrier and KNO3 as an alkaline modifying agent through adopting a mutualistic-symbiosis-method doping manner. The aluminosilicate carrier is prepared by adopting boehmite sol and silica sol and a doping method is combined; the synthesized solid alkali catalytic material enriches varieties of solid alkali catalysts.

Description

technical field [0001] The invention relates to the technical field of preparation of solid base catalytic materials, in particular to a preparation method of aluminosilicate-loaded strong basic solid base. Background technique [0002] Solid base catalysts have the advantages of high activity, high selectivity, mild reaction conditions, easy separation of products, economical and environmental protection, and less corrosive equipment, and have attracted widespread attention in industrial production. However, compared with solid acid catalysts, solid base catalysts started late and developed slowly. With the wide-scale application of basic catalysts in the field of heterogeneous catalytic reactions, the demand for solid bases is increasing. How to develop new solid base catalysts that are simple to prepare and low in cost has become a research hotspot. [0003] Aluminosilicate material is an important inorganic material with special pore structure and excellent selectivity....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/04B01J35/10
CPCB01J23/04B01J35/61
Inventor 江琦温俊磊
Owner SOUTH CHINA UNIV OF TECH