Lithium-based molecular sieve with oxygen generation function and preparation method and production equipment thereof

A production equipment and molecular sieve technology, applied in the field of molecular sieves, can solve the problems of small nitrogen adsorption capacity, low nitrogen and oxygen separation coefficient, affecting the effect of oxygen production, etc., and achieve increased nitrogen adsorption capacity, high nitrogen adsorption capacity, and improved heat resistance stability. Effect

Inactive Publication Date: 2022-05-13
南京永成分子筛有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used molecular sieves are generally 5A molecular sieve and 13X molecular sieve, but the nitrogen adsorption capacity of these two molecular sieves is small, and the nitrogen and oxygen separation coefficient is low, which affects the oxygen production effect

Method used

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  • Lithium-based molecular sieve with oxygen generation function and preparation method and production equipment thereof
  • Lithium-based molecular sieve with oxygen generation function and preparation method and production equipment thereof
  • Lithium-based molecular sieve with oxygen generation function and preparation method and production equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7

[0047] As shown in Table 1, the main difference of Examples 1-7 is that the proportioning ratio of raw materials is different.

Embodiment 1

[0049] Embodiment 1 discloses a production equipment of a lithium-based molecular sieve with the function of oxygen production.

[0050] refer to figure 1 , a kind of production equipment of lithium-based molecular sieve with oxygen production function, comprises frame 1, material mixing device 2, heating device 3, reaction device 4, suction filtration device 5 and roasting device 6, material mixing device 2, heating device 3 , reaction device 4, suction filtration device 5 and roasting device 6 are all arranged on the frame 1.

[0051] refer to figure 1 , the frame 1 includes a base plate 11, two support plates 12 are fixedly connected to the top wall of the base plate 11, the two support plates 12 are all vertically arranged, and a horizontal plate 13 is integrally formed on the side wall at the top of each support plate 12 , the two horizontal plates 13 are located between the two supporting plates 12 .

[0052] refer to figure 1 and figure 2 , the mixing device 2 inc...

Embodiment 8

[0067] The difference of embodiment 8 and embodiment 6 is, utilize driving motor 34 to drive seal plate 36 to rotate, open discharge hole 311, make mixture A enter in reactor 42, add the lithium carbonate of 2kg earlier in reactor 42, lithium carbonate After mixing with mixture A evenly, add 16kg of deionized water, 7kg of silica sol, 1.5kg of α-linolenic acid and 1.5kg of γ-aminopropyltriethoxysilane, and react at 160°C for 40 hours to obtain mixture B. Add it to a suction filter for suction filtration, wash the suction filtered product until neutral, and then dry to obtain a mixture C.

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Abstract

The invention relates to the technical field of molecular sieves, and particularly discloses a lithium-based molecular sieve with an oxygen production function and a preparation method and production equipment thereof. The lithium-based molecular sieve with the oxygen generation function is prepared from the following raw material components in parts by weight: 30 to 50 parts of lithium hydroxide, 40 to 60 parts of kaolin, 60 to 80 parts of silica sol, 15 to 25 parts of alpha-linolenic acid and 15 to 25 parts of gamma-aminopropyltriethoxysilane. The invention relates to a preparation method of a lithium-based molecular sieve with an oxygen generation function, which comprises the following steps: uniformly mixing lithium hydroxide and kaolin, and heating at 200-250 DEG C for 40-80 minutes to obtain a mixture A; uniformly mixing the mixture A, deionized water, silica sol, alpha-linolenic acid and gamma-aminopropyltriethoxysilane, reacting at 150-170 DEG C to obtain a mixture B, performing suction filtration, washing a suction filtration product to be neutral, and drying to obtain a mixture C; and roasting to obtain the lithium-based molecular sieve.

Description

technical field [0001] The present application relates to the technical field of molecular sieves, in particular to a lithium-based molecular sieve with an oxygen-producing function, a preparation method and production equipment thereof. Background technique [0002] Oxygen has strong oxidizing properties and life-sustaining properties, making it widely used in various industries such as medical treatment, metallurgy, and papermaking. With the continuous improvement of technology and industrial levels, the demand for oxygen is increasing day by day. [0003] PSA air separation oxygen production technology is currently a popular technology for producing oxygen. The key to PSA air separation oxygen production technology is oxygen-enriched adsorbent. Oxygen-enriched adsorbent is usually molecular sieve. The role of strong, so molecular sieves can absorb nitrogen, which can be used for oxygen production. The commonly used molecular sieves are generally 5A molecular sieve and 13...

Claims

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Application Information

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IPC IPC(8): C01B39/50B01J20/18C01B13/02
CPCC01B39/50B01J20/186C01B13/027
Inventor 王成王勇
Owner 南京永成分子筛有限公司
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