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Dry method recovery process of re-integrated waste industrial catalyst and device thereof

A dry recovery and catalyst technology, which is applied to the improvement of process efficiency, chemical instruments and methods, solid separation, etc., can solve the problems of inability to effectively separate sponge and sintered magnetic beads, difficult to control sorting, and low sorting efficiency. , to avoid secondary pollution, reduce energy consumption and improve sorting efficiency

Active Publication Date: 2014-05-07
CHINA UNIV OF MINING & TECH
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AI Technical Summary

Problems solved by technology

However, the traditional airflow sorting method has a limited sorting range. For materials with small density differences, the sorting is not easy to control, and the sorting efficiency is not high. It cannot effectively separate the sponge and sintered magnetic beads in the waste industrial catalyst.

Method used

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  • Dry method recovery process of re-integrated waste industrial catalyst and device thereof
  • Dry method recovery process of re-integrated waste industrial catalyst and device thereof
  • Dry method recovery process of re-integrated waste industrial catalyst and device thereof

Examples

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Effect test

Embodiment 1

[0027] Embodiment 1: The dry recovery process of reintegrating waste industrial catalysts is realized in this way, and the concrete steps are:

[0028] Step 1: Put the reintegrated waste industrial catalyst into the feeding device of the first set of active pulsating airflow separation device, and transport it to the sorting column for rough separation. By adjusting the feeding frequency, pulsation frequency and air volume, different The acceleration and deceleration states of the particles of density are different, so as to realize the effective separation of the sponge body rich in precious metals and the sintered magnetic beads. The heavy product, namely most of the sintered magnetic The sponge that collects precious metals is collected by the cyclone dust collector on the top of the sorting column;

[0029] Step 2: The rough-selected materials are processed as follows:

[0030] (1) Feed the heavy product obtained by roughing into the feeding device of the second set of ac...

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Abstract

The invention relates to a dry method recovery process of a re-integrated waste industrial catalyst and a device thereof, belonging to the recovery methods and devices of waste industrial catalysts. In the whole process adopting a physical treatment method, the re-integrated waste industrial catalyst is roughened at one time and scavenged or refined at one time or many times through an active pulse airflow sorting device to finally efficiently separate noble metal-enriched cavernous bodies and sintered magnetic beads to realize dry method recovery of the re-integrated waste industrial catalyst so as to provide advantages to subsequently purifying the enriched noble metals, thereby avoiding the defect that cavernous bodies are easy for argillization by a wet process to produce sewage to lead to secondary pollution. The active pulse airflow sorting device can obtain the sorting efficiency which is higher than that of conventional airflow sorting, and can efficiently separate the re-integrated waste industrial catalyst in a dried sorting environment, so that the device has the advantages of high sorting efficiency, small energy consumption, simplicity and agility in flow and the like.

Description

technical field [0001] The invention relates to a recycling method and device for waste industrial catalysts, in particular to a dry recovery process and device for reintegrating waste industrial catalysts. Background technique [0002] A large amount of waste industrial catalysts are produced every year in the world, which contain a large amount of noble metals (such as Pt, Pd, Rn, etc.) and non-ferrous metals (such as Cu, Ni, Co, Cr, etc.) and their oxides. Recycling it as a secondary resource is of great significance to improving resource utilization efficiency, avoiding environmental pollution, obtaining great economic benefits, and realizing sustainable economic and social development. [0003] At present, there are four commonly used recycling methods for waste industrial catalysts: dry method, wet method, dry-wet combined method and non-separation method. Among them, due to the existence of moisture, the sorting method containing wet method will have a modification e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B11/02B07B7/12B07B11/04B07B11/06
CPCY02P10/20
Inventor 何亚群王海锋段晨龙葛林瀚王帅
Owner CHINA UNIV OF MINING & TECH
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