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Method for preparing inert filler for ethylene oxide/glycol device

A technology of inert filler and ethylene oxide, which is applied in chemical instruments and methods, bulk chemical production, chemical/physical processes, etc., can solve problems such as product quality decline, equipment pipeline corrosion, etc., to prolong service life, protect and Long service life, simple effect

Inactive Publication Date: 2012-05-02
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Part of the generated aldehydes can be further deeply oxidized to carbon dioxide and water under the action of the silver catalyst; while the other part will enter the next step and remain in the product, resulting in a decline in product quality. At the same time, this part of the aldehydes can also be converted into Acid, causing corrosion to equipment pipelines

Method used

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  • Method for preparing inert filler for ethylene oxide/glycol device
  • Method for preparing inert filler for ethylene oxide/glycol device
  • Method for preparing inert filler for ethylene oxide/glycol device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: 55% industrial alumina, 20% kaolin, 10% industrial silica, 10% ordinary clay, 5% bentonite, molded with water, calcined at 1500°C for 2 hours, and recorded as sample a.

Embodiment 2

[0020] Example 2: 30% of industrial alumina, 27% of kaolin, 17% of industrial silica, 10% of ordinary clay, 10% of bauxite, 3% of calcium carbonate, 3% of sodium carbonate and water molding, calcined at 1350 ° C for 10 hours, recorded as sample b.

Embodiment 3

[0021] Example 3: 15% industrial alumina, 22% kaolin, 38% ordinary clay, 15% bentonite, 8% calcium carbonate, 2% sodium carbonate, molded with 2% nitric acid, calcined at 1200°C for 8 hours, recorded as sample c.

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Abstract

The invention relates to a method for preparing an inert filler for an ethylene oxide / glycol device. The method is characterized in that compounds containing alkali and alkaline earth metal elements are added into raw materials, so that the total content of alkali and alkaline earth metal oxides is between 0.5 and 20 percent; and the isomerized activity of the inert filler is inhibited, so that the inert filler is nearly inert completely, wherein the inert filler consists of the following raw materials in percentage by weight: 10 to 60 percent of commercial alumina, 5 to 30 percent of kaolin, 10 to 20 percent of industrial silicon dioxide and 10 to 50 percent of ordinary clay. The method comprises the following steps of: crushing the raw materials, adding a certain amount of adhesive for forming, drying to form a blank to be sintered at high temperature, and calcining at the high temperature of between 1,200 and 1,600 DEG C for 2 to 8 hours.

Description

[0001] A kind of preparation method of inert filler for ethylene oxide / ethylene glycol device technical field [0002] The invention relates to a preparation method for petrochemical fillers, in particular as inert fillers for ethylene oxide / ethylene glycol (EO / EG) devices. Background technique [0003] Inert packing is widely used in reaction, conversion, adsorption and other equipment in petrochemical industry, and plays the role of bottom, covering, support, interlayer and heat insulation. [0004] Ethylene oxide (EO) is an important organic chemical raw material, widely used in the synthesis of important chemical products, such as polyether, polyester, surfactant, plasticizer, softener, etc. Ethylene oxide is generally produced by the reaction of ethylene and molecular oxygen under the action of a silver catalyst. It is an important organic reaction, and at the same time, side reactions will occur to produce carbon dioxide and water. During the production of ethylene ox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00C07D301/08
CPCY02P20/52
Inventor 杨玉旺戴清刘敬利
Owner CHINA NAT OFFSHORE OIL CORP
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