N-decylamine phosphate salt ionic liquid, preparation method and application thereof

A technology of n-decylamine phosphate and ionic liquid, which is applied in the preparation of amino compounds from amines, chemical instruments and methods, recycling technology, etc., and can solve the problems of the volatility and toxicity of organic extractants, the difficulty of post-processing, and the impact on the environment and human body and other issues, to achieve sustainable development, good industrial application prospects, and overcome volatile effects

Inactive Publication Date: 2021-08-20
ANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, organic extractants are volatile and highly toxic. During use, they have a greater impact on the environment and the human body, and also increase the difficulty of post-processing.

Method used

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  • N-decylamine phosphate salt ionic liquid, preparation method and application thereof
  • N-decylamine phosphate salt ionic liquid, preparation method and application thereof
  • N-decylamine phosphate salt ionic liquid, preparation method and application thereof

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preparation example Construction

[0032] The present invention also provides a preparation method of the above-mentioned n-decylamine phosphate salt ionic liquid, comprising the following steps:

[0033] (1) decylamine and P507 are respectively dissolved in the same solvent and dissolved to obtain a concentration of decylamine solution of 10mmol / L and a concentration of 10mmol / L of P507 solution; the solvent can be well known to those skilled in the art A solvent, preferably toluene, dichloromethane or sherwood oil;

[0034] (2) The n-decylamine solution and the P507 solution are mixed for reaction, and the temperature is 80-120° C. for 50-180 minutes. After the reaction is completed, the n-decylamine phosphate salt ionic liquid crude product is obtained; n-decylamine The molar ratio with P507 is 1.1:1~2;

[0035] The specific reaction is as follows:

[0036]

[0037] (3) The crude product of n-decylamine phosphate salt ionic liquid obtained in step (2) is extracted successively with the extractant ethyl ...

Embodiment 1

[0042] A kind of n-decylamine phosphate ester salt ionic liquid preparation method, comprises the following steps:

[0043] (1) Dissolve n-decylamine (1.66g, 11mmol) and P507 (3.09g, 10mmol) in 20mL of absolute ethanol, respectively;

[0044] (2) Pour the dehydrated ethanol solution dissolved with P507 into the three-necked flask, then use a constant pressure funnel to slowly add the dehydrated ethanol solution dissolved with n-decylamine into the three-necked flask, and completely pour the n-decylamine into the three-necked flask within 15 minutes In the flask, the reaction was continued for 120 min. After the reaction is completed, the crude product of n-decylamine phosphate ester salt ionic liquid is obtained; the reaction temperature of n-decylamine and P507 is 89° C.;

[0045] (3) the n-decylamine phosphate salt ionic liquid crude product that step (2) obtains adopts extraction agent ethyl acetate to extract, separates the upper organic phase, and organic phase is separa...

Embodiment 2

[0052] A kind of n-decylamine phosphate ester salt ionic liquid preparation method, comprises the following steps:

[0053] (1) Dissolve n-decylamine (11mmol) and P507 (15mmol) in 22mL of absolute ethanol respectively;

[0054] (2) Pour the dehydrated ethanol solution dissolved with P507 into the three-necked flask, then slowly add the dehydrated ethanol solution dissolved with decylamine into the three-necked flask using a constant pressure funnel, and pour the decanylamine into the three-necked flask completely within 15 minutes. In the flask, the reaction continued for 130 minutes. After the reaction was completed, the crude product of n-decylamine phosphate ester salt ionic liquid was obtained; the reaction temperature of n-decylamine and P507 was 95°C;

[0055] (3) the n-decylamine phosphate salt ionic liquid crude product that step (2) obtains adopts extraction agent ethyl acetate to extract, separates the upper organic phase, and the organic phase is separated by column...

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Abstract

The invention discloses n-decylamine phosphate salt ionic liquid, a preparation method and application thereof. The method comprises the following steps: respectively dissolving n-decylamine and P507 by adopting the same reaction medium, then mixing the two solutions for reaction, and obtaining a crude product of the n-decylamine phosphate ionic liquid after the reaction is completed; and performing extraction, column separation, washing, dehydration and rotary evaporation on the crude product to obtain the purified n-decylamine phosphate ionic liquid. According to the invention, the novel ionic liquid can selectively extract and recover nickel and cobalt ions in waste lithium batteries, so that valuable metals in solid waste resources can be extracted and recovered in an environment-friendly manner; the problems that an existing organic extraction agent is easy to volatilize and high in toxicity are solved, and a new separation extraction agent is provided for sustainable environment-friendly recycling of the waste lithium ion battery; and the application field of the green solvent and the functionalized ionic liquid is expanded, and sustainable development of recycling of the waste lithium battery can be realized.

Description

technical field [0001] The invention belongs to the field of recovery of valuable metal resources in environmental engineering, and specifically relates to a preparation and purification method and application of n-decylamine phosphate salt ionic liquid. Background technique [0002] According to statistics, by 2020, the quantity and quality of waste lithium-ion batteries in the world will exceed 25 billion and 500,000 tons. It will have a serious impact on the environment and cause a waste of resources. Reasonable recycling of waste lithium-ion batteries can not only avoid its secondary pollution to the environment, but also realize sustainable recycling of valuable metals, which has significant environmental and economic benefits. [0003] The cobalt content of waste ternary cathode materials in batteries can reach about 4 times the total content of nickel and lithium. Therefore, the efficient recovery of cobalt in waste lithium-ion batteries is one of the effective ways ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/40C07C211/07C07C209/68C07C209/84H01M10/54C22B3/38C22B7/00C22B23/00
CPCC07F9/4075C07F9/4006C07C211/07C07C209/68C07C209/84H01M10/54C22B7/006Y02W30/84Y02P10/20
Inventor 景晓华詹俊龙王向阳夏玲玲夏梦婷殷会春
Owner ANYANG NORMAL UNIV
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