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Refining agent for ethylene glycol hydrofining and preparation method thereof

A hydrogenation refining and refining technology, which is applied in the preparation of organic compounds, chemical instruments and methods, preparation of hydroxyl compounds, etc., can solve the problem of low UV transmittance and achieve high UV transmittance and long service life Effect

Active Publication Date: 2021-03-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of low UV transmittance of ethylene glycol products in previous refining technologies, the present invention provides a new refining preparation and method for ethylene glycol hydrogenation refining

Method used

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  • Refining agent for ethylene glycol hydrofining and preparation method thereof
  • Refining agent for ethylene glycol hydrofining and preparation method thereof
  • Refining agent for ethylene glycol hydrofining and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] In a 500mL beaker, add 29.4g dry macroporous strongly acidic cation exchange resin Amberlyst-15 (exchange capacity is 5.2meq / g), 200g deionized water, after swelling for 5h, add 20mL palladium nitrate aqueous solution containing 1.31g palladium nitrate, Stir, heat up to 50°C, ion exchange for 5 hours, filter, wash the filtrate 10 times with deionized water, redisperse in 200mL water, heat to 75°C, and flow hydrogen at a flow rate of 30mL / min for reduction, after 5h Finished, filtered, and the obtained solid was dried in an oven at 110 degrees for 24 hours to obtain a hydrorefined preparation JJZ-1 with a structural formula of Pd-Amberlyst-15, wherein the mass fraction of Pd was 2.0, and the mass fraction of Amberlyst-15 was 98.0 .

Embodiment 2

[0096] The preparation method of the hydrofinishing preparation is the same as [Example 1], except that the amount of the carrier used is 29.9 g, the metal salt is 0.33 g of palladium nitrate, and the obtained hydrofinishing preparation is JJZ-2, and the structural formula is Pd-Amberlyst -15, wherein the mass fraction of Pd is 0.5, and the mass fraction of Amberlyst-15 is 99.5.

Embodiment 3

[0098] The preparation method of the hydrofinishing preparation is the same as [Example 1], except that the amount of the carrier used is 29.7g, the metal salt is 0.66g of palladium nitrate, and the obtained hydrofinishing preparation is JJZ-3, and the structural formula is Pd-Amberlyst -15, wherein the mass fraction of Pd is 1.0, and the mass fraction of Amberlyst-15 is 99.0.

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Abstract

The present invention provides a refining agent for ethylene glycol hydrofining. The refining agent comprises a carrier and metal Pd loaded on the carrier, wherein the carrier comprises acidic cationexchange resin, alkaline anion exchange resin or a silica-alumina gel. When the refining agent is used for ethylene glycol hydrofining, the ultraviolet transmittance of refined ethylene glycol is high, and the reduction of the ultraviolet transmittance in the storage process is not obvious.

Description

technical field [0001] The invention belongs to the field of ethylene glycol refining, and in particular relates to a refining agent for ethylene glycol hydrogenation refining and a preparation method thereof. Background technique [0002] Ethylene glycol (EG for short) is an important basic organic raw material in petrochemical industry, from which more than 100 kinds of chemicals can be derived. Among them, polyester (including polyester fiber, polyester bottle, polyester film, etc.) is the main consumption field of ethylene glycol in my country, and its consumption accounts for about 90% of the total domestic consumption, and about 10% is used for antifreeze, Adhesives, paint solvents, cold-resistant lubricating oils and surfactants, etc. At present, the industrial production of ethylene glycol can be mainly divided into two types: petroleum method and synthesis gas method. The petroleum method is mainly to obtain ethylene glycol by hydrating the ethylene oxide produced ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/44B01J31/08B01J31/10C07C29/90C07C31/20
CPCB01J31/08B01J31/10B01J23/44C07C29/90C07C31/202Y02P20/52
Inventor 陈梁锋叶迎春唐康健朱俊华
Owner CHINA PETROLEUM & CHEM CORP
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