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Multi-element high-active component deoxidizer and preparation method and application thereof

A technology with active components and high activity, applied in the field of deoxidizers, can solve the problems of low deoxidation depth, short service life, small deoxidation capacity, etc., and achieve the effects of large deoxidation capacity, long service life, and mechanical strength not easy to pulverize

Inactive Publication Date: 2016-06-15
大连圣得环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems in the prior art, the deoxidizer has small deoxidation capacity, low deoxidation depth, low mechanical strength and short service life, and provides a deoxidizer with multiple components and high activity components

Method used

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  • Multi-element high-active component deoxidizer and preparation method and application thereof
  • Multi-element high-active component deoxidizer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh more than 400 mesh MnCO in proportion 3 、TiO 2 、CuCO 3 , high-alumina cement, as shown in Table 1, mix the above several substances with a mixer for 2 hours, take the mixture and spray distilled water, and roll it to The small balls are placed for 24h-36h, during this period every 3h-4h for water mist preservation, and then a certain amount of nitrogen is protected, then the temperature is programmed to rise to 450°C and roasted for 6 hours to decompose to make a ternary high-activity deoxidizer, and the nitrogen is protected and cooled to Set aside at room temperature. Take 240ml deoxidizer respectively In the stainless steel reactor, at 20°C and 120°C, the space velocity of hydrogen is passed for 10h -1 Restore 8h. After cooling down, under the condition of pressure 0.8Mpa, feed ethylene, and the gas phase space velocity of ethylene is 3000h -1 , the inlet oxygen content is 500ppm, and the deoxygenation depth is ≤1ppm, and the deoxygenation capacity is m...

Embodiment 2～6

[0033] The preparation method and test method are the same as in Example 1, the only difference being the composition of the deoxidizer, see Table 1 for details.

[0034] The composition and evaluation result of table 1 embodiment 1-6 deoxidizer

[0035]

Embodiment 7

[0037] Weigh 58.8wt% MnCO over 400 mesh 3 , 1.4wt% TiO 2 , 1.7wt% CuCO 3 , 12.1wt% high alumina cement, 10wt% kaolin, 8wt% γ-Al 2 o 3 , 8wt% diatomaceous earth, stir the above several materials with a mixer for 2h, get the mixture sprayed with distilled water, roll to The small balls are placed for 24h-36h, during this period every 3h-4h for water mist preservation, and then a certain amount of nitrogen is protected, and then the temperature is programmed to 400°C and roasted for 6 hours to decompose to make a ternary high-activity deoxidizer. Set aside at room temperature. Take 240ml deoxidizer and put it into In the stainless steel reactor, at 20°C and 140°C, the space velocity of hydrogen is passed for 10h -1 Restore 8h. After cooling down, under the condition of pressure 0.8Mpa, feed ethylene, and the gas phase space velocity of ethylene is 3000h -1 , the inlet oxygen content is 100ppm, the deoxygenation depth is ≤0.02ppm, and the measured deoxygenation capacity ...

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Abstract

The invention provides a multi-component high-activity component deoxidizer as well as its preparation method and application. The deoxidizer is mainly composed of active components and support carriers, and the active components are low-valent oxides of Mn, Ti and Cu: MnO, TiO and Cu 2 O; the support carrier is high alumina cement, γ-Al 2 o 3 , kaolin and diatomaceous earth or a mixture of several. Compared with the prior art, the effect of the deoxidizer of the present invention is superior to that of a single-component or two-component deoxidizer, and has the advantages of no loss of effective components of the raw material gas, high deoxidation depth, large deoxidation capacity, and resistance to the impurity oxygen content of the raw material gas. Strong fluctuation ability, low activation temperature, strong anti-sintering ability, long service life, high mechanical strength and not easy to pulverize, etc., suitable for C 2 h 4 、C 3 h 6 、CH 4 、H 2 , N 2 , He, Ne, Ar, Kr, Xe, CO, CO 2 , NH 3 And electron gas deep deoxidation, can be widely used in large-scale industrial production.

Description

technical field [0001] The invention relates to a deoxidizer used in petrochemical, electronics, metallurgy, gas, analysis, semiconductor, solar photovoltaic and other industries, in particular to a deoxidizer with multiple components and high activity components, and the preparation method and application of the deoxidizer. Background technique [0002] With the rapid development of science and technology, petrochemical, electronics, metallurgy, gas, analysis, semiconductor, solar photovoltaic and other industries have higher and higher requirements for trace oxygen. For example: with the continuous improvement of polyethylene and polypropylene technology in petrochemical industry, various new high-efficiency polymerization metallocene catalysts are continuously put into industrial application. Propylene raw material requirements GB7716-87, qualified polymer grade polyethylene and polypropylene oxygen content ≤ 5PPm, can not meet the actual production requirements, and the ...

Claims

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Application Information

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IPC IPC(8): B01J20/14B01J20/30B01D53/82
CPCB01J20/14B01D53/82B01D2259/128B01J20/06B01J2220/42
Inventor 缪廷春刘超
Owner 大连圣得环保新材料有限公司
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