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Olefin deoxygenation agent, its preparation method, and olefin deoxygenation method using the same

An olefin deoxidizer and olefin technology, applied in the direction of chemical change purification/separation, organic chemistry, etc., can solve the problems of low deoxidation capacity and short service life, and achieve high deoxygenation capacity, efficient deoxidation, and reduced emissions.

Active Publication Date: 2014-08-27
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a new olefin deoxidizer, its preparation method and application, and an olefin deoxygenation method in order to overcome the defects of low deoxidation capacity and short service life of the existing olefin deoxidizer at room temperature (25° C.)

Method used

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Examples

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preparation example Construction

[0023] On the one hand, the invention provides a kind of preparation method of olefin deoxidizer, described method comprises the following steps:

[0024] (1) Manganese source and nano TiO 2 Mixed evenly to obtain a mixture, respectively with Mn 3 o 4 and nanoscale TiO 2 Calculated, based on 100 parts by weight of manganese source, nanoscale TiO 2 The consumption is 58-100 parts by weight, and the manganese source is Mn 3 o 4 And / or can get Mn after roasting 3 o 4 manganese compounds;

[0025] (2) The mixture obtained in step (1) is impregnated with an equal volume of aqueous solution of a silver compound, then kneaded and molded, and Mn 3 o 4 and Ag 2 In terms of O, based on 100 parts by weight of the manganese source, the aqueous solution of the compound of silver is 8-35 parts by weight, and the compound of silver can be decomposed to obtain Ag after roasting. 2 O water-soluble silver compounds;

[0026] (3) aging the product formed in step (2), and then drying ...

Embodiment 1

[0055] This example is used to illustrate the preparation method of the olefin deoxidizer provided by the present invention.

[0056] MnCO 3 And the average particle size is 9.8nm, the specific surface area is 160m 2 / g anatase TiO 2 well mixed. MnCO 3 and TiO 2 The dosage makes the Mn 3 o 4 and TiO 2 Gauge, based on 1000g of MnCO 3 ,TiO 2 is 650g, add AgNO 3 solution for equal volume impregnation, AgNO 3 The concentration and amount of the solution make the Mn 3 o 4 and Ag 2 O meter, based on 1000g of MnCO 3 , AgNO 3 The solution is 300g, fully kneaded, and prepared into strips with a diameter of Φ3mm and a length of 5mm by an extruder, and then placed in an airtight place for 48h, then dried at 120°C for 8h, and then roasted at 480°C for 5h to prepare an olefin deoxidizer. The deoxygenation capacity and deoxygenation depth of the prepared olefin deoxidizer are shown in Table 1.

Embodiment 2

[0058] This example is used to illustrate the preparation method of the olefin deoxidizer provided by the present invention.

[0059] MnCO 3 And the average particle size is 5nm, the specific surface area is 200m 2 / g anatase TiO 2 well mixed. MnCO 3 and TiO 2 The dosage makes the Mn 3 o 4 and TiO 2 Gauge, based on 1000g of MnCO3 ,TiO 2 It is 580g, and the blended material after mixing is added in the sugar coating machine, sprayed into AgNO 3 solution for equal volume impregnation, AgNO 3 The concentration and amount of the solution make the Mn 3 o 4 and Ag 2 O meter, based on 1000g of MnCO 3 , AgNO 3 The solution is 350g, rolled into a spherical shape of Φ3mm, and then placed in an airtight place for 60h, then dried at 140°C for 5h, and then calcined at 500°C for 2h to prepare an olefin deoxidizer. The deoxygenation capacity and deoxygenation depth of the prepared olefin deoxidizer are shown in Table 1.

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Abstract

The invention discloses an olefin deoxygenation agent, its preparation method, and olefin deoxygenation method using the same. The preparation method includes (by weight parts) (1) mixing manganese source (as Mn3O4) 100 and titania nanoparticle 58-100 to obtain a mixture; (2) kneading the mixture and a silver compound (as Ag2O) aqueous solution 8-35, and forming; (3) aging and drying; and (4) calcining. The inventive olefin deoxygenation agent has high room-temperature deoxygenation capacity up to 25.5 mL / g, deoxygenation depth smaller than 0.01 ppm, low reduction temperature, and wide applicability in industrial production. The agent realizes high-efficiency deoxygenation at room temperature.

Description

technical field [0001] The invention relates to a preparation method of an olefin deoxidizer, an olefin deoxidizer prepared by the preparation method, an application of the olefin deoxidizer and an olefin deoxygenation method. Background technique [0002] Olefins are important basic organic chemical raw materials. Among them, ethylene and propylene are the main raw materials for the production of polymer materials. With the rapid development of polyethylene and polypropylene technology, various new high-efficiency polyethylene, polypropylene catalysts and metallocene catalysts have been applied to industrial production. In order to avoid poisoning and deactivation of such high-efficiency polyolefin catalysts and improve product quality, there are strict restrictions on the impurity content of ethylene and propylene raw materials used for polymerization. According to the national standard for ethylene and propylene raw materials, the oxygen content in qualified polymer gra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C7/148C07C11/04C07C11/06
Inventor 吕顺丰李彤秦燕璜刘博王世亮黄凤兴吴秀香
Owner CHINA PETROLEUM & CHEM CORP
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