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Alumina powder and boehmite mixed amphiphilic agent and mixing equipment

A technology of alumina powder and mixing equipment, applied in the field of alumina, can solve the problems of single characteristic, single composition, inapplicability, etc., and achieve the effect of increasing isolation performance, reducing pore size, and improving isolation effect

Pending Publication Date: 2021-03-16
芯科众联新材料(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technical solutions disclosed in the above two patents have high production costs, and the particle size of alumina powder is concentrated, and are mostly used in high-end ceramic products such as catalyst carriers, and are not suitable for use as a matrix for castables
[0007] In short, most of the alumina micropowders in the prior art have a single composition and only have a single characteristic

Method used

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  • Alumina powder and boehmite mixed amphiphilic agent and mixing equipment
  • Alumina powder and boehmite mixed amphiphilic agent and mixing equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A mixed amphoteric agent of alumina powder and boehmite, comprising: a mixed powder of alumina powder and boehmite powder; the particle size of the alumina powder is 80-90 nanometers; the particle size of the boehmite powder is 50- 60 nanometers; alumina powder 70-82wt%; boehmite powder 8-20wt%. It also includes: nicotinamide adenine dinucleotide phosphate; the weight ratio of nicotinamide adenine dinucleotide phosphate to the mixed powder is 1:9 to 1:10. The mixed powder also includes polyphenylene ether sulfone; the content of polyphenylene ether sulfone is 2-4wt%. The mixed powder also includes sodium metaaluminate and urea; the content of sodium metaaluminate is 3-7wt%; the content of urea is 3-7wt%.

[0037]The beneficial effect of the present invention is that the boehmite of the present invention is mixed into the alumina powder, so that when the alumina powder is made into an alumina film, the water content is reduced, thereby increasing the isolation performan...

Embodiment approach

[0039] Another optional embodiment of the present invention: a mixed amphoteric agent of alumina powder and boehmite, including 70wt% alumina powder, 10wt% boehmite powder, and 10wt% nicotinamide adenine Dinucleotide phosphate, 2wt% polyphenylene ether sulfone, 5wt% sodium metaaluminate and 3wt% urea.

[0040] Put 10wt% nicotinamide adenine dinucleotide phosphate and 2wt% polyphenylene ether sulfone into a hydrothermal reaction kettle, carry out a hydrothermal reaction for 30 minutes, and carry out low-temperature cooling at 0-10 degrees, and mix by washing with water, Place it in a high temperature of 200-300 degrees for dehydration.

[0041] Put 5wt% of sodium metaaluminate and 3wt% of urea into the crucible at a high temperature of 600-1000 degrees for burning, and place it at room temperature to cool.

[0042] 70wt% alumina powder and 10wt% boehmite powder were mixed and stirred for 24 hours, placed in pure water for hydration soaking for 2 hours, and dehydrated at a low ...

Embodiment 3

[0045] Another optional embodiment of the present invention: a mixed amphoteric agent of alumina powder and boehmite, including 74wt% alumina powder, 8wt% boehmite powder, and 10wt% nicotinamide adenine Dinucleotide phosphate, 2wt% polyphenylene ether sulfone, 3wt% sodium metaaluminate and 3wt% urea.

[0046] Put 10wt% nicotinamide adenine dinucleotide phosphate and 2wt% polyphenylene ether sulfone into a hydrothermal reaction kettle, carry out a hydrothermal reaction for 30 minutes, and carry out low-temperature cooling at 0-10 degrees, and mix by washing with water, Place it in a high temperature of 200-300 degrees for dehydration.

[0047] Put 3wt% of sodium metaaluminate and 3wt% of urea into a crucible at a high temperature of 600-1000°C for burning, and place it at room temperature to cool.

[0048] 74wt% alumina powder and 8wt% boehmite powder were mixed and stirred for 24 hours, placed in pure water for hydration soaking for 2 hours, and dehydrated at a low temperatur...

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Abstract

The invention belongs to the technical field of aluminum oxide, and particularly relates to an aluminum oxide powder and boehmite mixed amphoteric agent and mixing equipment, and the aluminum oxide powder and boehmite mixed amphoteric agent and mixing equipment comprise mixed powder of aluminum oxide powder and boehmite powder; wherein the particle size of the aluminum oxide powder is 80-90 nanometers; wherein the particle size of the boehmite powder is 50-60 nanometers; wherein the content of the aluminum oxide powder is 70-82 wt%; wherein the content of the boehmite powder is 8-20wt%. The composition further comprises nicotinamide adenine dinucleotide phosphate. The weight ratio of the nicotinamide adenine dinucleotide phosphate to the mixed powder is 1:9 to 1:10. The alumina powder andboehmite mixed amphoteric agent and the mixing equipment have the effect of improving the isolation performance of the alumina powder.

Description

technical field [0001] The invention belongs to the technical field of alumina, and in particular relates to a mixing amphoteric agent of alumina powder and boehmite and mixing equipment. Background technique [0002] "Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and uses a non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Li-ion batteries do not contain metallic lithium and are rechargeable. In the manufacturing process of lithium batteries, the positive and negative electrodes need to be separated by a separator, and the separator needs to be covered with a layer of aluminum oxide as a thermal insulation layer. [0003] Alumina, chemical formula Al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/02B01F13/10B01F7/18B01F15/00B82Y30/00B82Y40/00
CPCC01F7/021C01F7/02B82Y30/00B82Y40/00C01P2004/64C01P2006/40C01P2006/80B01F27/191B01F27/90B01F33/81B01F35/187
Inventor 薛德运崔巍
Owner 芯科众联新材料(常州)有限公司
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