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Preparation method of stable acetic acid yttrium alcohol solution

A technology of alcohol solution and yttrium acetate, which is applied in the field of preparation of stable yttrium acetate alcohol solution, can solve problems such as instability, affecting application, and deterioration, and achieves the effects of easy operation and improved production safety

Active Publication Date: 2016-05-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The solubility of yttrium acetate in alcohol is not high. After adding a chelating agent or surfactant, it can be dissolved, but it will deteriorate in 5 to 10 hours in the production environment and form an emulsion; it can only be stored for 20 hours at 30°C. about
The instability of the solution using alcohol as the solute affects its application in the preparation of long strips and industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Production of superconducting tape Y 2 o 3 When blocking layer, Y 2 o 3 The precursor solution is pure yttrium acetate alcohol solution, the concentration is 0.1mol / L, the preparation method is as follows

[0016] Step 1. Weigh 33.8g of 0.1mol yttrium acetate tetrahydrate and pour it into a 1L beaker;

[0017] Step 2. Weigh 30g each of diethanolamine and diethylenetriamine, and pour them into the beaker obtained in step 1;

[0018] Step 3. Add ethanol to the beaker obtained in step 2 to make it volume up to 1L, and stir with a glass rod to make it evenly mixed;

[0019] Step 4. Put the beaker obtained in step 3 into an ultrasonic cleaner, and ultrasonically dissolve it for 5 hours until the solution in the beaker is clear and transparent, that is, a stable Y 2 o 3 Precursor.

[0020] Stored under airtight conditions at room temperature, the system is stable for at least two weeks; under production conditions, the system is stable for at least one week.

Embodiment 2

[0022] When producing the YAlO barrier layer of superconducting strips, the YALO precursor solution is an alcohol solution with a cation concentration of 0.1mol / L, and the ratio of yttrium to aluminum is 9:1. The preparation method is as follows

[0023] Step 1. Weigh 30.4 g of 0.09 mol of yttrium acetate tetrahydrate and 3.75 g of 0.01 mol of aluminum nitrate nonahydrate, and pour them into a 1L beaker;

[0024] Step 2. Weigh 30g each of diethanolamine and diethylenetriamine, and pour them into the beaker obtained in step 1;

[0025] Step 3. Add ethanol to the beaker obtained in step 2 to make it volume up to 1L, and stir with a glass rod to make it evenly mixed;

[0026] Step 4. Put the beaker obtained in Step 3 into an ultrasonic cleaner, and ultrasonically dissolve it for 5 hours until the solution is clear and transparent, and a stable YALO precursor solution is obtained.

[0027] Stored under airtight conditions at room temperature, the system is stable for at least tw...

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Abstract

The invention relates to a preparation method of a stable acetic acid yttrium alcohol solution. The preparation method is mainly used in the technical field of chemical industry and electronic materials. Due to the fact that diethanol amine and diethylenetriamine are used as additives, the stability problem of Y3+ ions in the alcohol solution is solved, the purpose of replacing methyl alcohol with alcohol as a solvent in the production or experiment is achieved, and the stability is ensured; the stability can be kept for at least 2 weeks at indoor temperature and kept for at least one week on the production condition, the requirement for superconduction strip material barrier layer industrial production is met, and production safety is improved.

Description

technical field [0001] The invention relates to a preparation method of a stable yttrium acetate alcohol solution, which is mainly used in the technical fields of chemical industry and electronic materials. Background technique [0002] Yttrium acetate solution is mainly used as a source of yttrium Y in the sol-gel method and used as a precursor. Currently in the preparation of superconducting tapes, the barrier layer (yttrium oxide Y 2 o 3 Or Yttrium Aluminum Oxygen (YAlO) prepared by dipping and pulling method has begun to be applied to industrial production. Depending on the length of strip being made, solution stability is required between hours and days. At present, methanol is mostly used as a solvent, and diethylenetriamine or ethylenediamine is used as an additive. Due to the use of methanol as a solvent, the production environment and pollution control have high cost requirements. [0003] The solubility of yttrium acetate in alcohol is not high. After adding a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C53/10C07C51/50
CPCC07C51/50C07C53/10
Inventor 陶伯万陈果张盼
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA