Technological process of preparing high efficient vanadium catalyst with nanometer vanadium material

A process method and catalyst technology, which is applied in the direction of sulfur trioxide/sulfuric acid, etc., can solve the problems of backward vanadium catalyst preparation process, short life of vanadium catalyst, monotonous varieties and specifications, etc., and achieve great economic benefits and application prospects, low cost, Practical effect

Inactive Publication Date: 2007-12-19
PANZHIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems are as follows: one is that the life of the vanadium catalyst is short, resulting in a higher consumption in the production of sulfuric acid;

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] Low temperature type (S108 type) nano-vanadium catalyst: when V 2 o 5 When the content is 5.26%, the activity is 47.03% (after heat resistance at 410°C), which meets and exceeds the national chemical industry standard (HG 2088-91, ≥ 35.0%); the strength is 58.40N / cm, which meets and exceeds the national chemical industry standard (HG 2088-91, ≥55.0%).

example 2

[0025] Medium temperature type (S101 type) nano-vanadium catalyst: when V 2 o 5 When the content is 6.68%, the activity is 86.85% (after heat resistance at 485°C), which meets and exceeds the national chemical industry standard (HG 2086-91, ≥ 81.0%); the strength is 71.44N / cm, which meets and exceeds the national chemical industry standard (HG 2086-91, ≥60.0%).

example 3

[0027] Medium temperature type (S101 type) nano-vanadium catalyst: when V 2 o 5 When the content is 6.28%, the activity is 87.41% (after heat resistance at 485°C), which meets and exceeds the national chemical industry standard (HG 2086-91, ≥ 81.0%); the strength is 66.87N / cm, which meets and exceeds the national chemical industry standard (HG2086-91, ≥ 60.0%).

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PUM

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Abstract

The present invention prepared nanometer vanadium catalyst with flaky industrial vanadium pentoxide crystal or pure vanadium pentoxide material, and through an inorganic sol-gel process to prepare colloid containing nanometer vanadium pentoxide particle, the subsequent mixing with carrier diatomite and co-catalyst potassium sulfate and cesium sulfate in a wet grinder, rolling, extruding to form, setting at room temperature for some time, drying in a drying box and final roasting in a muffle to obtain the catalyst. The catalyst is applied in sulfuric acid production, and has the features of low operation temperature, low power consumption and high activity.

Description

technical field [0001] The invention relates to a preparation process method of a high-efficiency vanadium catalyst, which mainly uses nano vanadium pentoxide particles to improve the performance of the vanadium catalyst. Background technique [0002] Traditional vanadium catalysts are often used as catalysts for sulfuric acid production. The main problems are as follows: one is that the vanadium catalyst has a short service life, which leads to a higher consumption in the production of sulfuric acid; the other is that the preparation process of the vanadium catalyst is backward; . [0003] In order to overcome the above disadvantages, the present invention provides a technical solution with simple preparation process, strong practicability, less consumption of vanadium pentoxide, and lower cost, and adopts nano-vanadium material to prepare high-efficiency catalyst technology. Contents of the invention [0004] A process for preparing high-efficiency vanadium catalysts u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/22B01J27/055C01B17/69
Inventor 杨绍利陈厚生马兰高仕忠
Owner PANZHIHUA UNIV
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