CN101954270B - Formaldehyde absorbent and preparation method thereof - Google Patents
Formaldehyde absorbent and preparation method thereof Download PDFInfo
- Publication number
- CN101954270B CN101954270B CN2010105231907A CN201010523190A CN101954270B CN 101954270 B CN101954270 B CN 101954270B CN 2010105231907 A CN2010105231907 A CN 2010105231907A CN 201010523190 A CN201010523190 A CN 201010523190A CN 101954270 B CN101954270 B CN 101954270B
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- formaldehyde
- epidesmine
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- formaldehyde absorbent
- stellerite
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Abstract
The invention discloses a formaldehyde absorbent and a preparation method thereof. Natural resource stellerite ore in Guangxi is taken as a raw material, and the formaldehyde absorbent is prepared by elutriation, dry grinding, modification, stirring, washing, drying and finished product packaging. The formaldehyde absorbent which is prepared from stellerite has the advantages of: 1) small granule, high purity and high whiteness; 2) existence of continuous hollow channels in a three-dimensional skeleton structure, relatively more uniform aperture, large specific surface area and relatively higher ion exchange capacity; 3) high thermal stability and safe use; and 4) low cost.
Description
Technical field
The present invention relates to adsorbent, specifically is a kind of formaldehyde adsorbent and preparation method thereof.
Background technology
Formaldehyde is a kind of moderate toxicity material, and modern scientific research shows that formaldehyde has very big harm to health.Formaldehyde has the strong impulse effect to people's skin and mucous membrane, can make the protein coagulating sex change in the cell, suppresses all cell functions; Because formaldehyde generates methyl alcohol in vivo, and eyesight and retina are had stronger detrimental effect.Formaldehyde mainly shows aspects such as allotriosmia, stimulation, allergy, abnormal pulmonary function, dysfunction of liver, immunologic dysfunction to health effects, but individual difference is very big.Formaldehyde is confirmed as suspect carcinogen by WHO.Indoor formaldehyde mainly comes from artificial chipboard, fiberboard, lumber core, glued board and sofa that house decoration uses and lays with the adhesive of sheet material and wood furniture with the decoration on sponge, sponge matress and wall, ground etc.In addition, some chemical fibre carpets, plastic floor, paint and all can release formaldehyde as the prefabricated board of heat-barrier material with the urea-formaldehyde foam resin.Present all kinds of artificial board and furniture thereof on the make adopt Lauxite as sicker usually; China's artificial board uses Lauxite more than 80%; Year, consumption was near 100,000 tons; The a large amount of uses of Lauxite in the house ornamentation engineering are to cause containing in the room air one of main reason that formaldehyde exceeds standard.
At present, take several different methods to administer indoor formaldehyde both at home and abroad and pollute, and more existing now products come out.The air purifying process that the improvement indoor formaldehyde pollutes is concluded and is mainly contained: physical adsorption techniques, catalysis technique, chemistry neutralization technology, negative aeroion technology etc.The material that physical absorption mainly utilizes some that adsorption capacity is arranged is adsorbed with harmful substances and reaches the purpose of removing harmful pollution, and adsorbent commonly used is a granular activated carbon.But present acticarbon particle is bigger, and absorption property is poor, and the adsorbance of general PARA FORMALDEHYDE PRILLS(91,95) is 5-10mg/g, and price is also somewhat expensive.
Summary of the invention
The objective of the invention is to provide a kind of high adsorption capacity, low-cost formaldehyde adsorbent and preparation method thereof.
The technical scheme that realizes the object of the invention is:
With resource natural parastilbite ore deposit, Guangxi is raw material, processes through sour modification.The preparation method comprises the steps:
1, stellerite ore is eluriated;
2, grinding and processing is to the 600-900 order;
3, be ratio with 40-60g epidesmine 3M hydrochloric acid 200-400ml, modified red stilbite at room temperature stirred 2-3 hour, placed 2 hours;
4, washing is to neutral;
5, oven dry gets the epidesmine formaldehyde adsorbent.
Through testing: a certain amount of 37% formaldehyde is placed in the closed glass workbench; Taking by weighing a certain amount of epidesmine formaldehyde adsorbent is tiled on the weighing disk; Place on the electronic balance; The reading of record different time sections balance (per 10 minutes records once), electronic balance can directly be read the increment (because of the existence of steam a large amount of in the workbench, so the experimental result reflection is the common adsorption phenomena of zeolite PARA FORMALDEHYDE PRILLS(91,95) and water) of quality; Specimen is to the adsorbance of water again, and both differences are the adsorbance of formaldehyde.Because the existence of steam is always arranged in the actual indoor environment, so the approximate reflection of this method actual conditions.Test result is: the adsorption capacity of epidesmine formaldehyde adsorbent is 45.24mg/g.
The actual adding proportion of adjustment epidesmine powder and hydrochloric acid can be prepared the epidesmine formaldehyde adsorbent of different-effect, thereby according to producer's requirement, obtains suitable oneself formaldehyde adsorbent.
Advantage of the present invention:
Have the following advantages as formaldehyde adsorbent with epidesmine: 1) particle is little, purity is high, whiteness is big; 2) continuous empty passage is arranged in the three-dimensional framework structure, more uniform aperture is arranged, great specific area is arranged, bigger ion exchange capacity is arranged; 3) good heat endurance is arranged, safe in utilization; 4) cheap.
The specific embodiment:
Embodiment 1:
The primary raw material of preparation epidesmine formaldehyde adsorbent is the natural parastilbite mineral; Hydrochloric acid solution.Manufacturing process: eluriate dry pulverization process modification agitator treating dried finished packing.Concrete preparation method comprises the steps:
1, the stellerite ore that produces with the Guangxi resource is a primary raw material, and raw material is eluriated;
2, grinding and processing to 600 order;
3, be ratio with 45g epidesmine 3M hydrochloric acid 250ml, modified red stilbite at room temperature stirred 2-3 hour, improved effective pore passage structure of epidesmine, and room temperature was placed 2 hours;
4, washing is to neutral;
5, oven dry gets the epidesmine formaldehyde adsorbent.Adsorption capacity after the epidesmine modification obviously improves, and processes the epidesmine formaldehyde adsorbent with it.
Embodiment 2:
The primary raw material of preparation epidesmine formaldehyde adsorbent is the natural parastilbite mineral; Hydrochloric acid solution.Manufacturing process: eluriate dry pulverization process modification agitator treating dried finished packing.Concrete preparation method comprises the steps:
1, the stellerite ore that produces with the Guangxi resource is a primary raw material, and raw material is eluriated;
2, grinding and processing to 800 order;
3, be ratio with 60g epidesmine 3M hydrochloric acid 400ml, modified red stilbite at room temperature stirred 2-3 hour, improved effective pore passage structure of epidesmine, and room temperature was placed 2 hours;
4, washing is to neutral;
5, oven dry gets the epidesmine formaldehyde adsorbent.Adsorption capacity after the epidesmine modification obviously improves, and processes the epidesmine formaldehyde adsorbent with it.
Claims (1)
1. the preparation method of a formaldehyde adsorbent, it is characterized in that: the preparation method comprises the steps:
(1) stellerite ore is eluriated;
(2) grinding and processing is to the 600-900 order;
(3) be ratio with 40-60g epidesmine 3M hydrochloric acid 200-400ml, modified red stilbite at room temperature stirred 2-3 hour, placed 2 hours;
(4) washing is to neutral;
(5) oven dry gets the epidesmine formaldehyde adsorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105231907A CN101954270B (en) | 2010-10-28 | 2010-10-28 | Formaldehyde absorbent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105231907A CN101954270B (en) | 2010-10-28 | 2010-10-28 | Formaldehyde absorbent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101954270A CN101954270A (en) | 2011-01-26 |
| CN101954270B true CN101954270B (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105231907A Expired - Fee Related CN101954270B (en) | 2010-10-28 | 2010-10-28 | Formaldehyde absorbent and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101954270B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513057A (en) * | 2011-12-08 | 2012-06-27 | 复旦大学 | Modified natural stilbite used as hollow glass adsorbent and preparation method thereof |
| CN104945998A (en) * | 2015-06-30 | 2015-09-30 | 广西科技大学 | Formaldehyde removing putty powder and preparation method thereof |
| CN106000304A (en) * | 2016-05-31 | 2016-10-12 | 舒尔环保科技（合肥）有限公司 | Composite air purifying agent for purifying cigarette smoke |
-
2010
- 2010-10-28 CN CN2010105231907A patent/CN101954270B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 魏毅.广西车田沸石用于吸附室内甲醛的研究.《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》.2007,(第05期),摘要，正文第13-14，18-19，23-28，31-32页. |
| 魏毅.广西车田沸石用于吸附室内甲醛的研究.《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》.2007,(第05期),摘要,正文第13-14,18-19,23-28,31-32页. * |
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| Publication number | Publication date |
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| CN101954270A (en) | 2011-01-26 |
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