Unlock instant, AI-driven research and patent intelligence for your innovation.

Utilization method of waste alumina carrier

A technology of alumina carrier and waste alumina, applied in catalyst carrier, chemical instrument and method, chemical/physical process, etc., can solve the problems of waste of resources, environmental pollution, etc. simple effect

Inactive Publication Date: 2020-05-12
商丘国龙新材料有限公司
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After using the above process to extract precious metals, the left carrier alumina balls or powders are generally disposed of by stacking or landfilling, which is likely to cause environmental pollution and waste of resources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Utilization method of waste alumina carrier
  • Utilization method of waste alumina carrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] A method for utilizing a waste alumina carrier, comprising the following steps:

[0082]Mix the crushed waste alumina carrier with manganese carbonate evenly, and the consumption of manganese carbonate is 0.05wt% of the waste alumina carrier; then mix and react with butyric acid solution, and the consumption of butyric acid in the butyric acid solution is 0.05% by weight of the crushed waste alumina carrier. 0.5wt% of the aluminum carrier, the amount of water in the butyric acid solution is 65wt% of the crushed waste alumina carrier, and the mixing reaction time is 0.5h; the reaction obtained material is first calcined, and the first calcined temperature is 150°C. The first calcination time is 13 hours to obtain an alumina carrier.

Embodiment 2-3

[0084] A method for utilizing a waste alumina carrier. The difference from Example 1 is that in Examples 2-3, the mixing reaction time is 1h and 1.5h respectively, and the rest are the same as Example 1.

[0085] The time of the mixing reaction among the examples 2-3 is within the preferred range of the present invention.

Embodiment 4-6

[0087] A method for utilizing a waste alumina carrier. The difference from Example 3 is that in Examples 4-6, the first calcination temperatures are respectively 200, 800 and 1200° C., and the first calcination times are 12, 8 and 3 hours respectively. All the other are identical with embodiment 3.

[0088] The first calcination temperature and the first calcination time in Examples 4-6 are within the preferred range of the present invention.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of catalyst carriers, and particularly provides a utilization method of a waste aluminum oxide carrier. The utilization method of the waste aluminum oxide carrier comprises the following steps: uniformly mixing the crushed waste aluminum oxide carrier with carbonate, mixing with an acid solution, reacting, and carrying out first roasting on the material obtainedby the reaction to obtain the aluminum oxide carrier. According to the method, the waste aluminum oxide carrier can be effectively recycled, the available aluminum oxide carrier is prepared again, andaluminum oxide resource waste and environmental pollution caused by the aluminum oxide resource waste are avoided. The preparation process is simple, the raw material source is rich, and the treatment cost can be effectively reduced.

Description

technical field [0001] The invention relates to the field of catalyst carriers, in particular to a method for utilizing waste alumina carriers. Background technique [0002] Precious metals are widely used in modern industry due to their high melting point, high boiling point, low vapor pressure, anti-oxidation and corrosion resistance. With the development of industries such as petroleum, chemical industry, and environmental protection, the amount of precious metal catalysts is increasing year by year. During use, the catalyst loses its activity due to problems such as poisoning, easy structure of the carrier, and carbon accumulation. It needs to be replaced regularly. Catalysts contain more precious metals than precious metal ores, so spent catalysts become an important raw material for precious metal recycling. [0003] The method of precious metal recovery is divided into the following according to the treatment method of the carrier: 1) separation of the carrier method...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J38/62B01J38/02B01J38/60B01J32/00B01J21/04
CPCB01J21/04B01J38/02B01J38/60B01J38/62
Inventor 马祥林梁旭赵立红李丰李磊王立英陈冰秦明志张振国王凯张超
Owner 商丘国龙新材料有限公司