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Method and device for preparing and recycling renewable platinum-carbon and palladium-carbon for improving pyrolysis efficiency

A recycling method and a technology for preparing a device, which are applied in chemical instruments and methods, improvement of process efficiency, transportation and packaging, etc., can solve problems such as time-consuming and labor-consuming, affect leaching efficiency, etc., increase capital expenditure and avoid danger Effect

Pending Publication Date: 2022-05-27
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During stirring and leaching, platinum carbon and palladium carbon powder will adhere to the inside of the mixing tank, which will seriously affect the leaching efficiency. It needs to be manually scraped off continuously, which is time-consuming and labor-intensive.

Method used

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  • Method and device for preparing and recycling renewable platinum-carbon and palladium-carbon for improving pyrolysis efficiency
  • Method and device for preparing and recycling renewable platinum-carbon and palladium-carbon for improving pyrolysis efficiency
  • Method and device for preparing and recycling renewable platinum-carbon and palladium-carbon for improving pyrolysis efficiency

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The recycling method of renewable platinum-carbon and palladium-carbon for improving pyrolysis efficiency, the recovery method is as follows:

[0036] In step 1, the recovered platinum carbon and palladium carbon are cleaned and then dried and put into a crusher for crushing, and then the crushed platinum carbon and palladium carbon are poured into the mixing bucket;

[0037] Step 2: Disperse ozone in platinum carbon and palladium carbon to promote the dissolution of platinum and palladium in platinum carbon and palladium carbon, disperse ozone in platinum carbon and palladium carbon by using ozone micro-nano bubble generating device, and compare the ozone with ozone. Strong strong oxidizing property accelerates the dissolution of platinum-carbon, palladium-carbon and water;

[0038] Step 3, after step 2 is completed, adjust the pH of the dissolved platinum and palladium system to 2-4 pH value, add a microbial adsorbent, stir at a uniform speed for 1-5 hours, and carry ...

Embodiment 2

[0045] Please refer to Figure 2 to Figure 4 As shown, the regenerable platinum-carbon and palladium-carbon preparation device of the above-mentioned regenerable platinum-carbon and palladium-carbon recovery method for improving pyrolysis efficiency comprises a stirring barrel 1, and the inner middle end of the stirring barrel 1 is provided with an inner wall Cleaning mechanism 2, the upper end of the inner wall cleaning mechanism 2 is provided with an intermittent feeding mechanism 3, and the inner wall cleaning mechanism 2 includes a rotating shaft 201, a stirring rod 202, and a circular arc scraper 203. The middle end of the rotating shaft 201 is fixedly connected with a stirring rod 202 and a stirring rod 202 in multiple directions. One end is fixedly connected with a circular arc scraper 203, one end of the circular arc scraper 203 is slidably connected to the inner wall of the mixing bucket 1, the lower end of the rotating shaft 201 is fixedly connected with an oblique fa...

Embodiment 3

[0048] Please refer to figure 1 and image 3 sum and 5 sum Image 6 As shown, the intermittent feeding mechanism 3 includes a hexagonal groove rod 301, an upper disk 302, an inner sleeve 303, an outer sleeve 304, and a lower disk 305. The upper end of the hexagonal butt rod 205 is inserted with a hexagonal groove rod 301. An upper disc 302 is fixedly connected to the upper end surface of the grooved rod 301, an inner sleeve 303 is fixedly connected to the upper disc 302 evenly and equidistantly, an outer sleeve 304 is slidably connected to the outer surface of the lower end of the inner sleeve 303, and the upper end of the outer sleeve 304 is outside A lower disc 305 is fixedly connected to the surface, and a bolt rod 306 is rotatably connected to the front and rear ends of the upper disc 302. The middle end of the bolt rod 306 is threadedly connected with an inner thread sleeve 307, and the outer surface of the inner thread sleeve 307 is rotatably connected to the lower disc...

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Abstract

The invention discloses a renewable platinum carbon and palladium carbon recovery method capable of improving pyrolysis efficiency, and the recovery method comprises the following steps: 1, cleaning recovered platinum carbon and palladium carbon, airing, crushing in a crusher, and pouring the crushed platinum carbon and palladium carbon into a stirring barrel; step 2, dispersing ozone into platinum-carbon and palladium-carbon to promote dissolution of platinum and palladium in the platinum-carbon and palladium-carbon; 3, after the step 2 is completed, the pH value of the dissolved platinum and palladium system is adjusted to 2-4, a microbial adsorbent is added, stirring is conducted for 1-5 hours at the constant speed, and adsorption is conducted; 4, after the step 3 is completed, the dissolved platinum and palladium are poured into a solid-liquid separation centrifugal machine to be subjected to solid-liquid separation, and microorganisms adsorbing the platinum and the palladium are obtained; and 5, adding a cyanoacrylate binder into the microorganisms containing platinum and palladium, granulating the microorganisms containing platinum and palladium, and drying.

Description

technical field [0001] The invention relates to the field of preparation of platinum-carbon and palladium-carbon, in particular to a method and a device for the preparation and recovery of renewable platinum-carbon and palladium-carbon for improving pyrolysis efficiency. Background technique [0002] Due to their excellent physical and chemical properties, platinum carbon and palladium carbon are widely used in chemical, pharmaceutical and other fields. It is of great strategic and economic significance to carry out research and application of waste platinum carbon and palladium carbon catalyst recovery and regeneration technology. Conventional incineration, strong acid and strong oxidant leaching platinum carbon, and palladium carbon catalyst recovery process have problems such as long process flow, large environmental pollution and low recovery rate. The preparation of platinum-carbon and palladium-carbon by leaching platinum and palladium by ozone oxidation and synergisti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/44B01J23/96B01J38/00B01J38/04B01J38/02B01F27/91B01F35/12B01F35/71
CPCB01J23/44B01J23/96B01J38/00B01J38/04B01J38/02B01J35/23Y02P10/20
Inventor 谢建平王国祯
Owner CENT SOUTH UNIV