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Waste treatment methods containing acetylides

A technology for treating acetylides and waste materials, which is applied in the field of waste materials containing acetylides, can solve the problems of difficult control of processing and decomposition speed, polluting production safety, high energy consumption, etc., and achieve the solution of decomposition speed, safe operation and low cost. Effect

Active Publication Date: 2021-10-26
徐光耀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a waste treatment method containing acetylides, aiming to solve the problem that the decomposition speed of existing wastes containing acetylides is difficult to control, and if the treatment is not good, new environmental protection problems or It realizes the regeneration of waste materials, but there are problems of high energy consumption, high cost, and other pollution and production safety hazards. At the same time, it extends the scope of application of the target substances to be processed, and the same is true for non-catalyst waste materials containing acetylides. Be applicable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Take 1000g of copper-bismuth waste catalyst containing 6.35% copper, add 60g of stabilizer silica gel and water, control the solid-liquid ratio to 3:1, stir at room temperature for 4 hours, and control the speed at 950r / min, so that the two are fully mixed. Stirring process, control pH value is 7.

[0044] The stabilized waste catalyst and silica gel are dehydrated by means of distillation and adsorption. After dehydration, the water content of the waste is 65%, and the waste water is returned to the BYD sewage plant.

[0045] Put the dehydrated spent catalyst and silica gel into the incinerator, and control the temperature of the furnace to 650°C to remove organic matter and carbon.

[0046] Gravity separation was used to obtain 66.8g of regenerated catalyst with a recovery rate of 80%; 58.2g of stabilizer with a recovery rate of 97%. The remaining residues with poor performance generally contain metals and can be sold as secondary resources.

[0047] This example is ...

Embodiment 2

[0049] Take 1000g of spent copper-bismuth catalyst containing 6.35% copper, add 48g of stabilizer silica gel and water, control the solid-liquid ratio to 3:1, stir at room temperature for 4 hours, and control the speed at 950r / min, so that the two are fully mixed. Stirring process, control pH value is 7.

[0050] The stabilized waste catalyst and silica gel are dehydrated by means of distillation and adsorption. After dehydration, the water content of the waste is 65%, and the waste water is returned to the BYD sewage plant.

[0051] Put the dehydrated spent catalyst and silica gel into the incinerator, and control the temperature of the furnace to 650°C to remove organic matter and carbon.

[0052] Sorting obtained 62.6g of regenerated catalyst, with a recovery rate of 75%; 39.36g of stabilizer, with a recovery rate of more than 82%. The rest of the residue with poor performance generally contains metals and can be sold as secondary resources.

[0053] The explosive decompos...

Embodiment 3

[0055] Take 1000g of waste copper-bismuth catalyst containing 6% copper acetylene, which contains 6.35% copper, add 60 grams of stabilizer silica gel and water, control the solid-liquid ratio to 3:1, stir at room temperature for 4 hours, and control the speed at 950r / min to make two or fully mixed. Stirring process, control pH value is 5.5.

[0056] The stabilized waste catalyst and silica gel are dehydrated by means of distillation and adsorption. After dehydration, the water content of the waste is 65%, and the waste water is returned to the BYD sewage plant.

[0057] Put the dehydrated spent catalyst and silica gel into the incinerator, and control the temperature of the furnace to 650°C to remove organic matter and carbon.

[0058] Gravity separation was used to obtain 66g of regenerated catalyst with a recovery rate of 79%; 58.2g of stabilizer with a recovery rate of 97%. The remaining residues with poor performance generally contain metals and can be sold as secondary r...

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PUM

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Abstract

The invention belongs to the field of waste treatment, and in particular relates to a method for treating waste containing acetylides. A substance with a porous structure is added as a stabilizer in the treatment of waste containing acetylides, and water is added to carry out liquid phase stirring until fully mixed, and then the The liquid-solid ratio and pH value are controlled to achieve a better passivation effect, followed by dehydration and roasting at different temperatures according to the comprehensive properties of the waste to process and recycle the waste. The present invention fundamentally solves the problem of The problem of too fast decomposition of acetylides is solved, safe operation and treatment are achieved, and safe and efficient treatment and recycling of the waste materials are achieved, without secondary pollution, low cost and convenient operation, which is conducive to industrial application and promotion.

Description

technical field [0001] The invention relates to the field of waste treatment, in particular to a waste treatment method containing acetylides. Background technique [0002] As an important active ingredient in organic synthesis reactions, acetylides are often used in industrial production. The common ones are copper acetylene, mercury acetylene, silver acetylene, and cadmium acetylene. Among them, copper acetylene is widely used in the production and synthesis of 1,4-butynediol as a catalytic active component, and cadmium acetylene and mercury acetylene are also mostly used in the synthesis of alcohols and acetylenylation reactions. As the reaction time increases, the surface of the catalyst is gradually covered by the polymer, the pores of the catalyst are blocked by impurities, the metal components are gradually lost, and the catalytic performance is lost. At this time, the catalyst needs to be replaced, and the replaced spent catalyst is generally handed over to a hazard...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00
Inventor 徐光耀
Owner 徐光耀
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