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Refining method of nonyl phenol

A refining method, the technology of nonylphenol, applied in the petroleum field, can solve the problems of waste of raw materials, increase of production cost, waste product treatment cost, etc., and achieve the effect of improving purity, reducing by-products, and reducing dinonylphenol

Active Publication Date: 2013-08-28
RUNTAI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, through the analysis of the final product, it is known that the reaction by-products, especially dinonylphenol, remain in a large amount in the final product, resulting in waste of raw materials, increasing production costs and disposal costs of waste products

Method used

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  • Refining method of nonyl phenol
  • Refining method of nonyl phenol
  • Refining method of nonyl phenol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for refining nonylphenol, comprising the following steps:

[0026] 1.1 Preparation of nonylphenol and dinonylphenol mixture

[0027] Phenol and nonene are preheated at 50°C~60°C, and fully mixed according to the ratio of phenol to nonene mass ratio of 2:1; the mixed mixture is placed in a reactor equipped with a resin catalyst Continuous reaction, nonene is continuously added dropwise during the reaction;

[0028] (2) When the content of nonylphenol does not increase significantly after the reaction, the mixed solution after the reaction is cooled to about 60 ° C to obtain the mixed solution after the reaction with the product; after the mixed solution is dephenolized, the mixed solution containing nonylphenol is obtained. A mixed solution of phenol and dinonylphenol;

[0029] The method of dephenolization treatment is: fill the mixed solution after reaction with nitrogen until there is no oxygen, add ferric oxide while continuing to feed nitrogen, and stir v...

Embodiment 2

[0041] According to the method disclosed in Example 1, the preparation of nonylphenol is carried out, and the mixing ratio of aluminum trichloride and ammonium thiocyanate in the catalytic column different from Example 1 is respectively selected as 1:1, 1:2, 1:3 , 1:5, 1:6, and 1:7 to obtain test article 1, test article 2, test article 3, test article 4, test article 5, and test article 6 of the nonylphenol final product respectively.

[0042] According to the preferred method in Example 1, Sample 1 was prepared.

[0043] Detect the content of nonylphenol in the final product. The detection method can refer to the existing detection method, or the method disclosed in Example 1 of the present invention. Nonylphenol detection method, the detection results are shown in the table below:

[0044]

Embodiment 3

[0045] Example 3 Comparison with the nonylphenol preparation method disclosed in the prior art

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PUM

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Abstract

The invention relates to the field of petroleum, in particular relates to a preparation method of nonyl phenol and more particularly relates to a refining method of nonyl phenol. The invention aims to improve the refining process of nonyl phenol, thus dinonyl phenol can be converted to nonyl phenol in a production process and then conversion of byproducts to products is achieved. By adopting the refining method, not only is the availability of the raw materials improved and the production cost saved, but also further treatment of dinonyl phenol can be omitted and the waste treatment cost can be saved.

Description

[0001] technical field [0002] The invention relates to a petroleum field, in particular to a method for preparing nonylphenol, and more specifically to a method for refining nonylphenol. [0003] Background technique [0004] Nonylphenol, also known as nonylphenol, is an important fine chemical raw material and intermediate. It is a colorless or light yellow liquid at room temperature with a slight phenol smell. It is insoluble in water but soluble in acetone. [0005] Nonylphenol is mainly used in the production of surfactants, and also used as antioxidants, textile printing and dyeing auxiliaries, lubricating oil additives, pesticide emulsifiers, resin modifiers, resin-based rubber stabilizers and other fields. [0006] The production method of nonylphenol is to produce nonylphenol by reacting phenol and nonene, and the purity of nonylphenol directly affects the stability and color of nonylphenol, so obtaining high-purity nonylphenol is of great importance to product q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C39/06C07C37/14G01N30/02C07C37/68
Inventor 达力达兴蒋超
Owner RUNTAI CHEM CO LTD