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A kind of composite spherical manganese-based catalyst and its preparation method and application

A manganese-based catalyst and spherical technology, applied in the field of composite spherical manganese-based catalyst and its preparation, can solve the problems of limited catalytic efficiency and limited catalytic decomposition effect, and achieve the effect of good effect and high efficiency

Active Publication Date: 2022-04-26
湖南省尤利威科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problems that the existing active manganese dioxide catalytic material has a good catalytic decomposition effect on formaldehyde, but the catalytic efficiency is limited in the actual use process, and it is in a passive absorption mode for adsorption and decomposition, and the actual catalytic decomposition effect is limited. Provides a composite spherical manganese-based catalyst, and provides the preparation method and application of the composite spherical manganese-based catalyst

Method used

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  • A kind of composite spherical manganese-based catalyst and its preparation method and application
  • A kind of composite spherical manganese-based catalyst and its preparation method and application
  • A kind of composite spherical manganese-based catalyst and its preparation method and application

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Embodiment 1

[0051] A preparation method for a composite spherical manganese-based catalyst, the method comprising:

[0052] 1) soak the porous material particles with a particle size of 0.5 mm in the glue solution, and then leach out as a carrier;

[0053] 2) Then the carrier is mixed with 200 mesh active manganese dioxide powder, the amount of active manganese dioxide powder is 0.5 times of the mass of the porous material particles used in step 1), and it is granulated, and the granulation adopts a disc machine to roll granulation, the disc machine controls its rotating speed to be 35r / min during the rolling granulation process, and the inclination angle is 60°. At the same time, the glue solution is slowly added in the form of atomization and spraying in the granulation process, and the addition amount of the glue solution is Add 0.5kg glue solution to one kilogram of active manganese dioxide powder, and obtain a composite spherical manganese-based catalyst after granulation is complete...

Embodiment 2

[0058] Specifically with the S101 test group of embodiment 1, the difference is:

[0059] The control parameters of the disc machine are shown in Table 2 below.

[0060] Table 2: Disk Machine Parameters of Embodiment 2

[0061] Test group number Rotating speed Tilt angle S201 35r / min 60° S202 30r / min 60° S203 40r / min 60° S204 35r / min 45° S205 35r / min 75° D201 20r / min 60° D202 50r / min 60° D203 35r / min 30° D204 35r / min 80°

Embodiment 3

[0063] Specifically with the S101 test group of embodiment 1, the difference is:

[0064] The particle size of the porous material in step 1) is 4.0mm;

[0065] The consumption of active manganese dioxide powder in step 2) is step 1) 3.0 times of the porous material particle quality used, and the addition amount of glue solution is that every kilogram of active manganese dioxide powder adds 1.0kg glue solution, obtains composite spherical The manganese-based catalyst is designated as S300.

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Abstract

The invention belongs to the field of catalysts, in particular to a composite spherical manganese-based catalyst and its preparation method and application. The method includes the following steps: 1) soaking the porous material particles in the glue solution, and then leaching out as a carrier; 2) mixing the carrier and active manganese, and granulating it, and slowly adding the glue solution during the granulation process , after the granulation is completed, a composite spherical manganese-based catalyst is obtained. The composite spherical manganese-based catalyst of the invention has higher catalytic decomposition efficiency and better effect on formaldehyde; can generate active adsorption and decomposition to formaldehyde; and can be widely used in the field of air purification.

Description

technical field [0001] The invention belongs to the field of catalysts, in particular to a composite spherical manganese-based catalyst and its preparation method and application. Background technique [0002] Active manganese is an active manganese dioxide material with methanol catalytic decomposition effect. Studies have shown that it can produce a very good aldehyde removal effect at room temperature (25°C), and it has good recovery. After H 2 O / O 2 It can be reused after regeneration. Based on the excellent aldehyde removal performance of active manganese dioxide, it is currently widely used in various fields. [0003] Such as formaldehyde decomposition felt, which loads active manganese dioxide on polyester fiber felt to form a formaldehyde decomposition felt, which can be used for the absorption and decomposition of formaldehyde. Another example is the active manganese pleated filter element, which has a better catalytic effect on formaldehyde than the conventiona...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/34B01J29/00B01J29/04B01J35/08B01J35/10B01D53/72B01D53/58B01D53/86B01J20/16B01J20/28B01J20/30
CPCB01J23/34B01J29/00B01J29/04B01D53/8634B01D53/8668B01J20/165B01J20/28021B01D2258/06B01D2257/708B01J2229/186B01J35/397B01J35/60B01J35/51
Inventor 张乾坤唐文武张惠斌任彩戴思雨
Owner 湖南省尤利威科技有限公司