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Production technology of silver-loaded resin adsorbent for acetic acid deiodination

A resin adsorption and production process technology, applied in the direction of selective adsorption, silver compounds, silver compounds, etc., can solve the problems of secondary pollution and weak adsorption, and achieve the effect of improving adsorption capacity, high deiodination efficiency, and tight bonding

Inactive Publication Date: 2018-01-16
王泽山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The object of the invention is to provide a kind of production technology of acetic acid deiodination silver-loaded resin adsorbent for the weak adsorption and the technical problem of secondary pollution that exist when the silver-loaded resin adsorbent in the prior art is deiodized in acetic acid, The silver-loaded resin adsorbent prepared by this process has strong binding ability, high deiodination efficiency and no secondary pollution when used in acetic acid deiodination treatment.

Method used

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  • Production technology of silver-loaded resin adsorbent for acetic acid deiodination
  • Production technology of silver-loaded resin adsorbent for acetic acid deiodination
  • Production technology of silver-loaded resin adsorbent for acetic acid deiodination

Examples

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Embodiment 1

[0048] A kind of production technology of acetic acid deiodination silver-loaded resin adsorbent, comprises the steps,

[0049] Step 1, silver oxide preparation

[0050] 1) Add deionized water into the reaction kettle, heat it to boiling, and maintain it under boiling conditions for 15 minutes to remove CO in the deionized water 2 , to get the removal of CO 2 of deionized water;

[0051] 2), dissolving NaOH in CO removal 2 In deionized water, it was made into a solution with a mass fraction of 25%; it was left to cool to room temperature, and after filtration, the filtrate was obtained, i.e. sodium hydroxide solution, for subsequent use;

[0052] 3), the AgNO 3 dissolved in CO removal 2 in deionized water, let stand and cool to room temperature, and obtain the filtrate after filtration, i.e. silver nitrate solution, for subsequent use;

[0053] 4), under cooling condition, described silver nitrate solution is added dropwise in described sodium hydroxide solution, wherein...

Embodiment 2

[0062] A kind of production technology of acetic acid deiodination silver-loaded resin adsorbent, comprises the steps,

[0063] Step 1, silver oxide preparation

[0064] 1) Add deionized water into the reaction kettle, heat it to boiling, and maintain it under boiling conditions for 20 minutes to remove CO in the deionized water 2 , to get the removal of CO 2 of deionized water;

[0065] 2), dissolving NaOH in CO removal 2 In deionized water, it was made into a solution with a mass fraction of 40%; it was left to cool to room temperature, and after filtration, the filtrate was obtained, i.e. sodium hydroxide solution, for subsequent use;

[0066] 3), the AgNO 3 dissolved in CO removal 2 in deionized water, let stand and cool to room temperature, and obtain the filtrate after filtration, i.e. silver nitrate solution, for subsequent use;

[0067] 4), under cooling condition, described silver nitrate solution is added dropwise in described sodium hydroxide solution, wherein...

Embodiment 3

[0078] A kind of production technology of acetic acid deiodination silver-loaded resin adsorbent, comprises the steps,

[0079] Step 1, silver oxide preparation

[0080] 1) Add deionized water into the reaction kettle, heat it to boiling, and maintain it under boiling conditions for 10 minutes to remove CO in the deionized water 2 , to get the removal of CO 2 of deionized water;

[0081] 2), dissolving NaOH in CO removal 2 In deionized water, it was made into a solution with a mass fraction of 45%; it was left to cool to room temperature, and after filtration, the filtrate was obtained, i.e. sodium hydroxide solution, for subsequent use;

[0082] 3), the AgNO 3 dissolved in CO removal 2 in deionized water, let stand and cool to room temperature, and obtain the filtrate after filtration, i.e. silver nitrate solution, for subsequent use;

[0083] 4), under cooling condition, described silver nitrate solution is added dropwise in described sodium hydroxide solution, wherein...

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Abstract

The invention provides a production technology of a silver-loaded resin adsorbent for acetic acid deiodination. The production technology comprises the following steps: preparing silver oxide, carrying out de-coloring and washing treatment on resin and carrying out resin silver loading treatment. Aiming at the technical problems of a deiodination adsorbent in the prior art that the adsorption is not firm, silver easily falls off in a deiodination process and secondary pollution is caused, the invention innovatively provides the production technology of the silver-loaded resin adsorbent for theacetic acid deiodination. The silver-loaded resin adsorbent prepared by the production technology provided by the invention has remarkable technical effects that the combining capability is strong, and the deiodination efficiency is high, the silver falling rate is low and no secondary pollution is caused when the silver-loaded resin adsorbent is used for carrying out acetic acid deiodination treatment.

Description

technical field [0001] The invention relates to the field of preparation of acetic acid deiodination adsorbent, in particular to a process of acetic acid deiodination silver-loaded resin adsorbent. Background technique [0002] Acetic acid is an important basic industrial raw material, widely used in chemical industry, light textile, medicine and other industries. In the prior art, the production method of acetic acid is mainly the methanol carbonyl synthesis method, which has the advantages of high conversion rate, few by-products and good product quality. However, in the oxo-acetic acid process using methyl iodide and hydrogen iodide as cocatalysts, iodide exists in the whole process of acetic acid production, and a small amount of iodide is inevitably contained in the acetic acid product. [0003] Through traditional rectification and chemical treatment, the iodide in the acetic acid product is reduced to 10-40ppb (the ppb appearing in the patent of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J41/12B82Y40/00C01G5/00B01D15/08B01J20/30
Inventor 王泽山
Owner 王泽山
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