An evaluating method for resin adsorption performance in a phenol refining process

A technology of resin adsorption and evaluation methods, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of research stay, research methods that do not form a system, etc.

Inactive Publication Date: 2015-04-01
JILIN INST OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the evaluation method of resin is mainly to study its adsorption performance, but the research only stays in part of the performance, and there is no systematic method for its research

Method used

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  • An evaluating method for resin adsorption performance in a phenol refining process
  • An evaluating method for resin adsorption performance in a phenol refining process
  • An evaluating method for resin adsorption performance in a phenol refining process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Example of exchange capacity measurement:

[0021] After the blank test, weigh 1.50 g each of the pretreated KC113 resin and the imported resin on the analytical balance, weigh three parts of each resin, place them in dry conical flasks, and transfer them to each conical flask with a pipette. Add 100 ml of NaOH standard solution into the bottle, shake it well, seal it, and soak it at room temperature for 4 h. Pipette 20 ml of the upper layer soaking solution from the Erlenmeyer flask, put it in another Erlenmeyer flask, add 30 ml of distilled water and 3 drops of neutral red indicator to it, at this time the solution in the Erlenmeyer flask is golden yellow, use Concentration is 0.12 mol / L standard solution of hydrochloric acid is titrated until it turns light red and keeps 15 s without fading, record the volume V 1 .

[0022] Table 1 Blank experimental data

[0023]

[0024] V 2 =V 终止 -V 初始

[0025] Table 2 Determination of exchange capacity

[0026]

[0...

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Abstract

The invention belongs to the technical field of resin evaluation, and mainly relates to an evaluating method for resins in a phenol refining process. The evaluating method mainly relates to evaluation of adsorption performance of two resins. Firstly, the total ion-exchange capacity of each resin is measured, and then the adsorption performance of each of the resins is evaluated by utilization of static adsorption and dynamic adsorption methods. A method combining headspace solid-phase microextraction and gas chromatography is utilized for measuring impurity contents in phenol in the whole evaluating process. The evaluating method is simple in operation and comprehensive in applications, can be used for evaluation of all resins in industrial applications, and has a good using prospect in the field of fine chemicals.

Description

technical field [0001] The invention belongs to the technical field of resin evaluation, and mainly relates to a method for evaluating resin in the process of refining phenol. Background technique [0002] Phenol, also known as carbolic acid, is an important basic organic raw material in chemical production and is widely used in various fields such as synthetic fibers, phenolic resins, medicines and pesticides. At present, more than 90% of the world's phenol is synthesized by the cumene oxidation method, which is easy to operate, has a high yield, and can co-produce acetone. However, in the production process, this method produces a variety of organic impurities that are difficult to remove, which seriously affects the purity and color of phenol, and also brings many difficulties to subsequent production, directly affecting the value of phenol products. [0003] Phenol refined special resin is specially developed to absorb organic impurities in the production process of phe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 娄大伟白雪孙秀云祝波连丽丽金丽任红罗亚楠
Owner JILIN INST OF CHEM TECH
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