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Coal-based phenol high-purity refined catalysis adsorbent and preparation method thereof

A coal-based phenol and adsorbent technology, applied in the field of catalysts, can solve the problems of long processing time and low catalyst activity, and achieve the effects of low cost, improved activity and stability, and easy preparation

Inactive Publication Date: 2011-09-21
BAOWU CHARCOAL MATERIAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the solid acid catalysts in these patents are all used directly as a single raw material component (without compounding and modification technology), which has disadvantages such as low catalyst activity and long treatment time, and has not yet removed sulfur, an important impurity in phenol. Except for inspection

Method used

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  • Coal-based phenol high-purity refined catalysis adsorbent and preparation method thereof

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preparation example Construction

[0042] The preparation method of the coal-based phenol high-purity refined catalytic adsorbent under the first technical scheme comprises the following steps:

[0043] a 1 ), take the solid active components kaolin, attapulgite, sepiolite and diatomaceous earth according to the mass percentage of the first technical scheme, and grind and sieve respectively;

[0044] b 1 ), and mix the ground and sieved components.

[0045] In the second technical scheme of a coal-based phenol high-purity refined catalytic adsorbent, the coal-based phenol high-purity refined catalytic adsorbent includes the following components in mass percentage:

[0046] Kaolin 0-99%

[0047] Activated clay 15-99%

[0048] Sepiolite 0-20%

[0049] Diatomaceous earth 0-45%

[0050] Mordenite 0-80%

[0051]ZSM molecular sieve 0-99%.

[0052] The preparation method of the coal-based phenol high-purity refined catalytic adsorbent under the second technical scheme comprises the following steps:

[0053] a...

Embodiment 1

[0074] The components of the coal-based phenol high-purity catalytic adsorbent in this embodiment are as follows: 40% diatomite, 38% attapulgite, and 22% sepiolite in terms of mass percentage. These raw materials are ground, sieved and mixed to prepare the catalyst. Coal tar phenol fraction is used as raw material (impurity S content ≥ 1000ppm), the temperature is 120°C, the amount of coal-based phenol high-purity refined catalytic adsorbent is 5% of the mass of the phenol fraction, the reaction time is 180min, and the obtained liquid phase product is in a vacuum of 730mmHg Under the condition of rectification and purification, the S content of refined phenol in the distillate was measured by a sulfur analyzer to drop to 132ppm, and the desulfurization rate was ≥ 86.8%.

Embodiment 2

[0076] The ZSM molecular sieve, one of the raw materials of the coal-based phenol high-purity refined catalytic adsorbent in this embodiment, has completed ion exchange and metal ion replacement in advance through nitric acid and copper nitrate aqueous solution. The conditions are: ion exchange, HNO 3 The concentration is 5mol / l, the reaction temperature is 92°C, the reaction time is 5h, the drying condition is 95°C, 6h, the roasting condition is 390°C, 4h; metal ion exchange, HNO 3 The concentration is 5mol / l, the reaction temperature is 88°C, the reaction time is 4h, the drying conditions are 105°C, 5h, the roasting conditions are 410°C, 5h, and the total mass content of copper is 2.1%. The component content of the coal-based phenol high-purity catalytic adsorbent is as follows: kaolin 5%, activated clay 40%, ZSM molecular sieve 43%, sepiolite 10%, these raw materials are ground and sieved and mixed to prepare the catalyst. Coal tar phenol fraction is used as raw material (i...

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Abstract

The invention relates to a catalyst, in particular to a coal-based phenol high-purity refined catalysis adsorbent and a preparation method thereof. The coal-based phenol high-purity refined catalysis adsorbent comprises the following active ingredients in percentage by mass: 0 to 99 percent of kaolin, 15 to 99 percent of active clay, 0 to 20 percent of sepiolite, 0 to 45 percent of diatomite, 0 to 80 percent of mordenite and 0 to 99 percent of zeolite socony mobil (ZSM) molecular sieve. The preparation method of the coal-based phenol high-purity refined catalysis adsorbent comprises the following steps of: grinding and sieving water-insoluble solid substances in the active ingredients, and fully mixing the active ingredients to obtain a mixture; performing ion exchange on the mixture by using HNO3, drying and roasting; or exchanging and adding metal copper into a catalyst by using aqueous solution of copper nitrate, so that the content of the metal copper in the catalyst is 0 to 3.5 weight percent. The technical problems of blending preparation and modification optimization of the coal-based phenol high-purity refined catalysis adsorbent are solved.

Description

technical field [0001] The invention relates to a catalyst, in particular to a coal-based phenol high-purity catalytic adsorbent, and also relates to a preparation method of the coal-based phenol high-purity catalytic adsorbent. Background technique [0002] Phenol is an important organic chemical raw material, mainly used in the production of phenolic resin, caprolactam, bisphenol A, adipic acid, aniline, alkylphenol, salicylic acid, etc. In addition, it can also be used as a solvent, reagent and disinfectant, etc., and has a wide range of applications in the fields of synthetic fibers, synthetic rubber, plastics, medicine, pesticides, spices, dyes and coatings. [0003] The production of phenol originated from the extraction of phenol impurities from coal tar, and this method still accounts for a large proportion of phenol production. Tar phenolic compounds are coal pyrolysis products, and their composition and yield are related to the total oxygen contained in the coal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/16B01J29/06B01J29/18B01J29/072B01J20/10C07C39/04C07C37/86C07C37/82
CPCY02P20/52
Inventor 许健吴幼青吴诗勇陈新
Owner BAOWU CHARCOAL MATERIAL TECH CO LTD
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