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Air purifying material capable of removing ammonia and secondhand smoke and preparation method thereof

An air purification material, second-hand smoke technology, applied in chemical instruments and methods, gas treatment, other chemical processes, etc., can solve problems such as limited actual effect and inappropriate use, etc., to achieve small wind resistance, well-developed pore structure, and large specific surface area. Effect

Pending Publication Date: 2017-05-17
福建省宇诚环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, negative ion powder, that is, tourmaline powder, tourmaline is mainly collected from monazite ore, and its main component contains a large amount of radioactive thorium elements and a small amount of other radioactive elements, so it is not suitable for use in places where people often move, and the actual The effect is very limited

Method used

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  • Air purifying material capable of removing ammonia and secondhand smoke and preparation method thereof

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preparation example Construction

[0045] A preparation method of an air purification material capable of removing ammonia and second-hand smoke, comprising the following steps:

[0046] Step 1, first make the silica gel into a silica gel filter cake, and then make nano silica dry powder from this silica filter cake;

[0047] The preparation method of the silica gel cake is as follows: (1) The water glass solution with a mass concentration of 15% and the sulfuric acid with a mass concentration of 25% are injected into the bottom liquid at the same time according to the weight ratio of 1:0.25-0.5. In the kettle, and use ammonium bicarbonate as a reaction aid, control the reaction pH to be 8-9, and the reaction temperature to be 20-50 o C, the feeding time is 60min; (2) After adding water glass and sulfuric acid, keep the pH value and temperature, continue to react for 30min, and then raise the temperature to 80 o C Aging for 1.5 hours to promote the consolidation and strengthening of the silica colloidal struct...

Embodiment 1

[0059] 1500kg of water glass solution with a mass concentration of 15% and 550kg of sulfuric acid with a concentration of 25% were added dropwise to the reactor with 4000kg of deionized bottom liquid at the same time, and 1kg of reaction auxiliary ammonium bicarbonate was added to the reactor in advance, stirred and controlled. temperature is 35 o C, the pH value is 9, the feeding time is 60min, then keep the temperature and pH value to continue the reaction for 30min, then heat up to 80 o C aging 1.5h. After aging, add sulfuric acid dropwise to adjust the pH value to 7, and then put the material into the storage tank. When the material temperature drops to 60 o Below C, use a plate and frame filter press to wash and remove sulfate to obtain a silica gel filter cake. A part of the silica gel filter cake is directly flash-dried to obtain nano-silica dry powder.

[0060] Put 100 parts of silica filter cake, 0.15 parts of fatty alcohol polyoxyethylene ether, and 0.5 parts of ...

Embodiment 2

[0062] The preparation method of silica gel filter cake and nanometer silica dry powder is identical with embodiment 1.

[0063] Put 90 parts of silica filter cake, 0.3 parts of fatty acid glycerides, and 0.25 parts of sodium citrate into a high-speed cutting mixer, cut and mix into mud, and then put in 4 parts of activated carbon, 15 parts of nano silica gel dry powder, 1.5 parts of manganese dioxide, 2 1 part of aluminum oxide, 1.2 parts of iron oxide, 7 parts of aluminum hydroxide, 5 parts of magnesium hydroxide, and 0.8 part of hydroxyethyl cellulose, and continue to cut and mix rapidly for 8 minutes to obtain a fluffy wet material. A granulator with a mesh of 2mm was used for granulation. Then, the strip-shaped granular material is put into a spherical shot blasting machine for rounding to obtain a spherical granular material with a size of about 2 mm. Then, carry out the drying of material with airflow drying, drying temperature 100 o C, the drying time is 3 hours, and...

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Abstract

The invention discloses an air purifying material capable of removing ammonia and secondhand smoke and a preparation method thereof. The air purifying material comprises the following components in parts by weight: 50-120 parts of silica gel, 6-20 parts of nanosilica dry powder, 4-10 parts of active carbon, 10-28 parts of a mixture of active metal oxide and hydroxide, 0.1-1.5 parts of a surfactant, 0.1-1.5 parts of an active assistant and 0.2-2 parts of an adhesive. The nanosilica is a highly-active adsorbent material, has the characteristics of a large specific surface area, a developed porous structure, large oil absorption, small wind resistance and the like, can selectively adsorb a variety of harmful gases, especially has higher capability of adsorbing polar gas molecules, and also can absorb tar macromolecules in cigarette smoke; the air purifying material has stable chemical properties and is a safe and environment-friendly material.

Description

technical field [0001] The invention belongs to environment-friendly materials, in particular to an air purification material capable of removing ammonia and second-hand smoke and a preparation method thereof. Background technique [0002] Air quality is closely related to human health. According to statistics, people spend 80% of their time indoors, and 69% of diseases are related to indoor air pollution. A report by the U.S. Environmental Protection Agency (EPA) pointed out that indoor air pollution is 2-5 times more serious than outdoor air under the combined effects of smog, home decoration material pollution, second-hand smoke, microbial bacteria, viruses, and kitchen fumes. In special cases it can even reach 100 times. According to a survey conducted by the World Bank in 2013, the number of excess deaths caused by indoor air pollution in China reached 111,000, the excess number of outpatient visits reached 220,000, and the excess number of emergency visits reached 4.3...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30B01D53/02
CPCB01J20/103B01D53/02B01D2257/406B01D2257/70B01D2258/06B01J20/041B01J20/06B01J20/08B01J20/20
Inventor 庄艺伟刘主良柯江洋肖琳煌黄印婷
Owner 福建省宇诚环保科技有限公司
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