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

Formaldehyde removing carbon and preparation method thereof

A formaldehyde removal, charcoal technology, applied in the direction of separation methods, chemical instruments and methods, other chemical processes, etc., can solve the problem that formaldehyde cannot be completely treated

Inactive Publication Date: 2010-06-16
SHENYANG INST OF LAKE PLANT CARBON
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adsorption and retention of formaldehyde after activated carbon treatme

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The formaldehyde removal carbon of the present invention is prepared from the following raw materials in parts by weight:

[0032] High-temperature charcoal (charcoal powder) 40 grams; lime 20 grams; sodium chloride 6 grams; oxidant 7-8 grams.

[0033] The preparation method of formaldehyde scavenging charcoal of the present invention comprises the steps:

[0034] Molding: Mix 40 grams of high-temperature charcoal (charcoal powder); 20 grams of lime; Obtain mixture A;

[0035] Carbonization: put the dried mixture A into a carbonization kiln, and gradually heat it up to 900 degrees by dry distillation to complete carbonization and obtain a semi-finished product B;

[0036] Activation: When the kiln temperature reaches 900 degrees, the activation process is completed by injecting carbon dioxide or water vapor, and the semi-finished product C is obtained;

[0037] Finished product: Put the semi-finished product C into a sealable container, spray 7-8 grams of oxidant; 10...

Embodiment 2

[0039] The formaldehyde removal carbon of the present invention is prepared from the following raw materials in parts by weight:

[0040] High-temperature charcoal (charcoal powder) 80 grams; lime 20 grams; sodium chloride 10 grams; oxidant 11 grams.

[0041] Its preparation method is with embodiment 1.

Embodiment 3

[0043] The formaldehyde removal carbon of the present invention is mainly prepared from the following raw materials in parts by weight:

[0044] High-temperature charcoal (charcoal powder) 50 grams; lime 50 grams; sodium chloride 10 grams; oxidant 10 grams.

[0045] Its preparation method is with embodiment 2.

[0046] Potassium ferrate can be used as the oxidizing agent.

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 carbon powder reprocessing technology, in particular to loaded carbon having high formaldehyde oxygenolysis and a preparation method thereof. The invention provides formaldehyde removing carbon capable of getting rid of formaldehyde radically and a preparation method thereof. The formaldehyde removing carbon is prepared from the following raw materials in part by weight: high-temperature carbon 40-80, lime 20-60, sodium chloride 5-12 and oxidant 7-15. The preparation method of the invention comprises: a step of forming, in which the 40 to 80 parts of high-temperature carbon, the 5 to 12 parts of sodium chloride and the 20 to 60 part of lime are mixed and stirred, water in an amount of 15 to 23 percent based on the weight of the mixture is added into the mixture, the wet mixture is filled in forming equipment to be made into blocks, and the blocks are dried to obtain a mixture A; a step of carbonization, in which the dried mixture A is filled in a carbonization kiln and is gradually heated to 700 to 900 DEG C by using a dry distillation method to complete carbonization to obtain a semi-finished product B; a step of activation, in which carbonization is finished, carbon dioxide or vapor is injected to obtain a semi-finished product C; and a step of finished product obtaining, in which the 7 to 15 parts of oxidant is added into the semi-finished product C at normal temperature, and the resulting products are packaged in bags to obtain the finished products.

Description

Technical field: [0001] The invention relates to a carbon powder reprocessing technology, in particular to a loaded carbon capable of oxidizing and decomposing formaldehyde and a preparation method thereof. Background technique: [0002] Formaldehyde, a highly toxic substance. Due to the use of adhesives and plasticizers, it has become a common air pollutant in the daily indoor environment. Has been identified as carcinogenic and teratogenic substances by the World Health Organization. It is one of the recognized allergens and potential mandatory mutants. The lot of documents record, formaldehyde mainly shows aspects such as allotriosmia, stimulation, allergy, abnormal pulmonary function, abnormal liver function and so on health effects. Formaldehyde ranks second on the priority list of toxic chemicals in my country. [0003] Long-term exposure to low-dose formaldehyde can cause the following diseases: various chronic respiratory diseases; memory and intelligence decline...

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
IPC IPC(8): B01J20/20B01D53/72B01D53/81
Inventor 姜哲
Owner SHENYANG INST OF LAKE PLANT CARBON