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Modifier for removing formaldehyde, modified efficient formaldehyde removing activated carbon and preparation method

A modifier and activated carbon technology, applied in the field of formaldehyde removal modifier, modified high-efficiency formaldehyde removal activated carbon and its preparation, can solve the problems that formaldehyde does not have good adsorption capacity, product quality is not very good, and adsorption capacity is limited. , to achieve the effect of improving the removal effect of formaldehyde, the effect of attaching, and the uniform volatilization.

Inactive Publication Date: 2018-02-16
宁夏浦士达环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the main preparation process of modified high-efficiency formaldehyde-removing activated carbon in the market is mainly shaped carbon. The product quality is not very good, the adsorption capacity is limited, and it does not have a good adsorption capacity for the special adsorbate, namely formaldehyde.

Method used

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  • Modifier for removing formaldehyde, modified efficient formaldehyde removing activated carbon and preparation method

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Embodiment Construction

[0025] The present invention is further illustrated by the following examples: According to the following examples, the present invention can be better understood. However, those skilled in the art can easily understand that the specific material ratios, process conditions and results described in the examples are only used to illustrate the present invention, and should not and will not limit the present invention described in the claims.

[0026] The preparation process of the modified high-efficiency formaldehyde-removing activated carbon in this embodiment comprises the following steps:

[0027] S1) Selected raw materials: select coal-based columnar carbon with high carbon tetrachloride adsorption performance and carbon tetrachloride adsorption value of not less than 70% as raw material; preferred manufacturer models are coal-based columnar carbon such as 2070, 3070, 4070;

[0028] In other embodiments, coconut shells, apricot shells, walnut shells, wooden columns, bamboo ...

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Abstract

The invention discloses a modifier for removing formaldehyde. The modifier is prepared from a strong oxidant, an auxiliary neutral agent and a weak alkali agent. The strong oxidant and formaldehyde are subjected to a redox reaction, the auxiliary neutral agent provides chlorine for the redox reaction, and the weak alkali agent can react with formic acid which is a product of the redox reaction. The invention also discloses modified efficient formaldehyde removing activated carbon and a preparation method thereof. The modifier is prepared from three substances, adsorption of formaldehyde is improved through comprehensive utilization of the strong oxidant, the auxiliary neutral agent and the weak alkali agent, formaldehyde can be decomposed more completely, and the formaldehyde removal effect is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of activated carbon production, and in particular relates to a formaldehyde-removing modifier, modified and high-efficiency formaldehyde-removing activated carbon and a preparation method. Background technique [0002] The main hazard of formaldehyde is the irritation to the skin and mucous membranes. When formaldehyde reaches a certain concentration indoors, people will feel uncomfortable. Greater than 0.08m 3 High formaldehyde concentrations can cause red eyes, itchy eyes, throat discomfort or pain, hoarseness, sneezing, chest tightness, wheezing, dermatitis, etc. [0003] As a very good filter medium, activated carbon has been applied in many fields, especially in the field of environmental protection, whether it is to purify water or air, it has become the current protagonist. At present, the main preparation process of modified high-efficiency formaldehyde-removing activated carbon in the market is ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/81B01D53/72B01J20/20B01J20/30
CPCB01D53/72B01D53/81B01D2257/7022B01J20/20
Inventor 王洪炳秦玲房雷
Owner 宁夏浦士达环保科技有限公司
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