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Production process of activated carbon-based carbon, catalyst applying activated carbon-based carbon and production process of catalyst

A production process, activated carbon technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc., can solve the problems of unfavorable acetylene coordination and low catalyst activity, and achieve Improve catalytic activity, high catalytic activity, increase the effect of loading capacity

Pending Publication Date: 2022-07-22
MULINSEN ACTIVATED CARBON JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, activated carbon-supported bismuth carbonate is prone to overlap, which is not conducive to the coordination of acetylene, resulting in low activity of the above catalysts.

Method used

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  • Production process of activated carbon-based carbon, catalyst applying activated carbon-based carbon and production process of catalyst
  • Production process of activated carbon-based carbon, catalyst applying activated carbon-based carbon and production process of catalyst

Examples

Experimental program
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Effect test

preparation example 1

[0043] This preparation example provides a pickling solution, and the pickling solution is prepared according to the following steps: 1 kg of acetic acid solution with a mass fraction of 2%, 1 kg of a hydrochloric acid solution with a mass fraction of 2% and 1 kg of a nitric acid solution with a mass fraction of 2% are mixed. Homogeneous to obtain pickling solution.

[0044] Preparation example of alkaline washing solution

preparation example 2

[0046] This preparation example provides an alkaline washing solution, which is prepared according to the following steps: 1 kg of sodium hydroxide solution with a mass fraction of 3.5%, 1 kg of potassium hydroxide with a mass fraction of 3.5%, and 1 kg of hydrogen with a mass fraction of 3.5% The barium oxide solution is mixed evenly to obtain an alkaline washing solution.

Embodiment 1

[0049] The present embodiment provides a production process of activated carbon-based carbon, comprising the following steps:

[0050] Base carbon reclaiming: add the activated carbon raw material into the pulverizer and pulverize it to 8 meshes to obtain activated carbon powder;

[0051] Pre-acidification treatment: then add 3kg of activated carbon powder to the reaction kettle, add 1.5kg of wood tar and 1.5kg of acid solution to the reaction kettle, and after the immersion is sufficient, the reaction kettle is heated to 125 ° C and heated for 2.5 hours to obtain an acidified mixture ;

[0052] Alkalization treatment: add 2kg alkaline solution to the acidified mixture of the reactor again, and after stirring sufficiently, obtain the alkalized mixture;

[0053] Pressurized isolation air: nitrogen is introduced into the reactor to remove the air in the reactor, the pressure in the reactor is adjusted to 0.8Mpa, the reactor is sealed and air is isolated, and the pressure in the...

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Abstract

The invention discloses a production process of activated carbon-based carbon, a catalyst applying the activated carbon-based carbon and a production process of the catalyst, and relates to the technical field of catalysts. The production process of the activated carbon-based carbon comprises the steps of taking of the base carbon, pre-acidification treatment, alkalization treatment, pressurization for air isolation, composite activation, acid washing and alkali washing. The production process of the catalyst using the activated carbon-based carbon comprises the steps of a loading stage, finished product obtaining and the like. The vinyl acetate synthesis catalyst is prepared by using the production process of the activated carbon-based carbon catalyst. According to the present invention, the specific surface area of the activated carbon-based carbon can be easily increased, the purity of the activated carbon-based carbon can be improved, such that the product performance of the activated carbon-based carbon can be improved, and the catalyst prepared from the activated carbon-based carbon has high catalytic activity.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a production process of activated carbon-based carbon, a catalyst using activated carbon-based carbon and a production process thereof. Background technique [0002] Vinyl acetate is mainly used in the synthesis of vinylon, but also in the adhesive and coating industries. At present, when the acetylene method is generally used for the gas phase synthesis of vinyl acetate in a fixed bed, the supported zinc acetate activated carbon Zn(AC) 2 as a catalyst. In the process of the fixed bed VAC synthesis reaction, the carrier-based carbon is generally selected from the carbonized material after molding and activation. [0003] In the related art, a preparation method of an acetylene method vinyl acetate catalyst is disclosed. The specific preparation steps are as follows: adopting an excess solution impregnation method, using zinc oxide and acetic acid as the main raw materials, ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/18B01J31/04B01J31/34B01J37/02B01J37/06B01J37/08C07C67/04C07C69/15
CPCB01J21/18B01J37/0201B01J37/08B01J37/06B01J31/04B01J31/34C07C67/04C07C69/15
Inventor 汤海涌滕勇升
Owner MULINSEN ACTIVATED CARBON JIANGSU
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