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Preparation of multi-component titanium-based catalyst carrier

A catalyst carrier and multi-component technology, which is applied in the direction of catalyst carriers, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of high preparation cost, low production efficiency, and complicated preparation process, and achieve high mechanical strength, The effect of strong oxygen absorption and storage capacity

Active Publication Date: 2007-01-17
中国中化股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the above-mentioned co-precipitation method to prepare the carrier, the raw material purity requirement is high, the preparation cycle is long, the preparation process is complicated, the preparation cost is high, and the production efficiency is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Titanium dioxide 100g, zirconia 20g, methyl cellulose 3g Starch 1.5g Charcoal powder 1.5g Mix well, then add (TiO 2 150-250g / L) titanyl sulfate aqueous solution 55g , kneading, extruded into a cylindrical strip carrier of φ3mm, dried at room temperature overnight, dried at 105°C for 2 hours, pelletized into cylindrical carrier particles of φ3×(3-8)mm, heated to 700°C for 4 hours, A catalyst carrier is obtained.

Embodiment 2

[0030] 100g of titanium dioxide, 10g of zirconium carbonate, 3g of methyl cellulose, 1.5g of starch, and 1.5g of carbon powder are mixed evenly, and then added (TiO 2 150-250g / L) titanyl sulfate aqueous solution 60g, knead, extrude into a cylindrical strip carrier of φ3mm, dry overnight at room temperature, dry at 105°C for 2 hours, and pelletize into a cylindrical shape of φ3×(3-8)mm The carrier particles were heated up to 700° C. and calcined for 4 hours to obtain a catalyst carrier.

Embodiment 3

[0032] Titanium dioxide 100g, cerium-rich rare earth carbonate 20g, methylcellulose 3g starch 1.5g carbon powder 1.5g mix well, then add (TiO 2 150-250g / L) titanyl sulfate aqueous solution 60g, knead, extrude into a cylindrical strip carrier of φ3mm, dry overnight at room temperature, dry at 105°C for 2 hours, and pelletize into a cylindrical shape of φ3×(3-8)mm The carrier particles were heated up to 700° C. and calcined for 4 hours to obtain a catalyst carrier.

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PUM

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Abstract

A process for preparing a multi-element carrier of Ti-base catalyst includes such steps as providing TiO2, proportionally adding Zr and / or RE, pore forming agent and adhesive, grinding while mixing, extruding to become strip, drying, cutting to become particles, and calcining. It has high stability, mechanical strength and O2-bearing power.

Description

technical field [0001] The invention belongs to the field of catalyst carrier preparation. Specifically, it relates to a method for preparing a multi-component titanium-based catalyst carrier. Background technique [0002] Various industrial wastewaters usually contain toxic pollutants that are difficult to remove by simple biological methods based on activated sludge treatment. Therefore, chemical treatment is usually used to treat refractory organic wastewater. Among them, a wet oxidation method using a solid catalyst (hereinafter referred to as a catalytic wet oxidation method, CWO) has attracted attention in recent years because of its high ability to purify wastewater and its economical advantages. The use of catalytic wet oxidation to treat high-concentration organic wastewater is known as the second-generation water treatment technology and is a new field of environmental protection water treatment development. [0003] Catalytic wet oxidation treatment of high-con...

Claims

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Application Information

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IPC IPC(8): B01J32/00B01J21/06B01J23/10C02F1/72
Inventor 闫海生刘博李利敏董振海喻为福孙延辉旋咏梅刘冬雪
Owner 中国中化股份有限公司
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