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Inert gas purification catalyst, raw material composition and preparation method

A raw material composition, inert gas technology, applied in the directions of inert gas compounds, physical/chemical process catalysts, nitrogen compounds, etc., can solve the problems of non-renewable, high cost, unfavorable industrial use, etc., to achieve increased adsorption, low production cost, Remove the deep effect

Active Publication Date: 2020-11-24
大连华邦化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The other is a composite metal alloy as a getter, but the getter is a one-time removal of impurities in the gas, which is costly and non-renewable, which is not conducive to industrial use

Method used

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  • Inert gas purification catalyst, raw material composition and preparation method
  • Inert gas purification catalyst, raw material composition and preparation method
  • Inert gas purification catalyst, raw material composition and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0035] (1) After getting 47g of lithium sulfate and 4.3g of borax to be ground by a ball mill, they were added to 300ml of ethanol solution and subjected to ultrasonic treatment for 2 hours. (2) Weigh 180g of basic nickel carbonate, 65g of basic copper carbonate and 7.5g of basic zinc carbonate, mix them after ball mill grinding, and add the mixture into the ethanol mixture containing lithium sulfate and borax. Stir at room temperature (25° C.) for 6 hours, collect the solids by filtration, and dry the catalyst active component and auxiliary agent mixture. (3) Weigh 20 g of Beta molecular sieve and fully mix with the dried catalyst active component and auxiliary agent mixture, and finally use aluminum sol with an aluminum content of 5% as a binder for molding. (4) After forming, the catalyst was dried naturally in an oven at 110° C. overnight, then transferred to a muffle furnace with nitrogen protection gas, and roasted at 350° C. for 6 hours to obtain catalyst No. 1.

Embodiment 2

[0037] (1) Get 31g of lithium sulfate and 8.6g of borax after being ground by a ball mill, add them into 300ml of ethanol solution, and process them with ultrasonic waves for 2 hours. (2) Weigh 86g of basic nickel carbonate, 52g of basic copper carbonate and 5.2g of basic zinc carbonate, grind them in a ball mill, mix them, and add the mixture to the ethanol mixture containing lithium sulfate and borax. Stir at room temperature (25° C.) for 6 hours, collect the solids by filtration, and dry the catalyst active component and auxiliary agent mixture. (3) Weigh 20 g of Beta molecular sieve and fully mix with the dried catalyst active component and auxiliary agent mixture, and finally use aluminum sol with an aluminum content of 5% as a binder for molding. (4) The molded catalyst was dried naturally in an oven at 110°C overnight, then transferred to a muffle furnace with nitrogen protection gas, and roasted at 350°C for 6 hours to obtain catalyst No. 2.

Embodiment 3

[0039] (1) Get 47g of lithium sulfate and 10g of borax after being ground by a ball mill, add them into 300ml of ethanol solution, and process them with ultrasonic waves for 2 hours. (2) Weigh 242g of basic nickel carbonate, 17g of basic copper carbonate and 6.5g of basic zinc carbonate, mix them after being ground by a ball mill, and add the mixture to the ethanol mixture containing lithium sulfate and borax. Stir at room temperature (25° C.) for 6 hours, collect the solids by filtration, and dry the catalyst active component and auxiliary agent mixture. (3) Weigh 20 g of Beta molecular sieve and fully mix with the dried catalyst active component and auxiliary agent mixture, and finally use aluminum sol with an aluminum content of 5% as a binder for molding. (4) The molded catalyst was dried naturally in an oven at 110° C. overnight, then transferred to a muffle furnace with nitrogen protective gas, and calcined at 350° C. for 6 hours to obtain catalyst No. 3.

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PUM

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Abstract

The invention discloses an inert gas purification catalyst, a raw material composition and a preparation method, wherein the inert gas purification catalyst comprises an active component, an auxiliaryagent, a carrier and a binder, wherein the active component comprises an oxide of Ni, an oxide of Cu and an oxide of Zn, and the auxiliary agent comprises a compound of Li and / or a compound of B. Theinert gas purification catalyst, the raw material composition and the preparation method have the advantages that the active components of the catalyst are reasonably selected, the active componentsare non-noble metals, the production cost is relatively low, and deep removal of different impurity gases is facilitated; the catalyst has the advantages of large specific surface area, uniform distribution of the active components, small active component particles and high activity, the consumption of the catalyst can be reduced, and the operation cost can be saved. The inert gas purification catalyst, the raw material composition and the preparation method provided by the invention are not only suitable for bulk gases such as hydrogen, oxygen, nitrogen, argon, helium and neon, but also suitable for purification of organic gases such as ethylene and propylene in the field of chemical engineering.

Description

technical field [0001] The invention relates to the technical field of high-purity gas purification, in particular to an inert gas purification catalyst, a raw material composition and a preparation method. Background technique [0002] With the rapid development of the semiconductor industry, the production of semiconductor materials such as monocrystalline silicon and polycrystalline silicon is also particularly important. During the crystal growth process, it is necessary to introduce inert gas into the furnace to stabilize the furnace pressure and take away impurities such as volatiles and oxides to improve the stability of crystal growth and product quality. The requirement for the purity of inert gas is getting higher and higher, from the initial 99.999% to the current 99.9999999%, the requirement for gas purification materials is getting higher and higher. There are two types of methods for removing impurities used in gas industry production. One is the method of ca...

Claims

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Application Information

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IPC IPC(8): B01J29/76B01J23/80B01J35/02B01J35/10B01J20/28B01J20/18B01J20/10B01J20/08B01J20/30B01J20/06C01B3/50C01B3/58C01B13/02C01B21/04C01B23/00
CPCB01J29/7615B01J23/002B01J23/80B01J29/7607B01J20/186B01J20/103B01J20/08B01J20/06B01J20/28061C01B3/58C01B3/508C01B13/0288C01B21/0494C01B23/0094B01J2523/00B01J2229/186C01B2210/0018C01B2210/0003C01B2210/0031C01B2210/0062C01B2210/0034C01B2210/0053C01B2210/0045C01B2210/005C01B2210/0051C01B2210/007B01J35/40B01J35/615B01J2523/11B01J2523/17B01J2523/27B01J2523/305B01J2523/41B01J2523/847B01J2523/31
Inventor 侯鹏钱吉李文强杨瑞云韩江江赵艳东李世海高嵩
Owner 大连华邦化学有限公司
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