JPS6238164A - Allopheine deodorant/moisture adsorbent and its production - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is applicable to various types of waste that occur in daily life, such as in toilets, food waste, bathrooms, living rooms, cars, livestock barns, etc., as well as in various manufacturing plants. The present invention relates to a novel deodorizing and moisture absorbing agent that is effective in removing bad odors, that is, deodorizing, and also has moisture absorption ability, and a method for producing the same.

(Prior art) There are various causes of bad odors. For example, bad odors in living rooms, toilets, bathrooms, automobiles, etc. are mainly caused by ammonia, hydrogen sulfide, nicotine, trimethylamine, acetaldehyde, styrene, methyl mercaptan, skatole, and the like.

The above is just an example, and there are various other sources. Deodorizing methods are also adopted depending on the source.

Namely, there are methods such as washing with water, methods using acids and alkalis, methods in which bad odors are masked by masking with fragrances, and methods using adsorbents such as activated carbon and zeolite.

(Problems to be Solved by the Invention) The water washing method and the method using chemicals such as acid and alkali require large-scale equipment, which is economically disadvantageous. Moreover, products are generated by chemical reactions such as neutralization, and these treatments are also required. Also, the use of fragrances is not a fundamental solution. or,
For example, activated carbon from palm trees is known as an adsorbent, but it has a real value, and its reuse can be partially blown, and there is also a problem in terms of resources. In the case of industrial use, even if the equipment is large-scale, it can be used practically as long as it has a corresponding effect, but as a deodorizing agent for removing bad odors emitted from the home environment, it is easy to manufacture and deodorizing It is required to have excellent effects and be easy to install. Further, it is desired that the effective time is longer and that regeneration and activation are easier.

(Means for Solving the Problems) As a result of various studies to achieve the above-mentioned purpose, the present inventors have
ALLOPHANE The present invention was completed based on the knowledge that porous calcined allophein produced by Y sintering has excellent deodorizing ability, moisture absorption ability, and can be reactivated.

That is, the present invention relates to a deodorizing and moisture absorbing agent containing porous calcined allophane as an active ingredient. This deodorizing and moisture absorbing agent is produced by the method of the present invention, which involves firing in a temperature range of 30° C. to 1000° C. and then cooling.

Allofein is a hydrous silicate of aluminum and is produced as a naturally occurring colloid in various places such as Tochigi, Ibaraki, Iwate, Kagoshima, and Tottori prefectures, none of which can be used in the present invention.
Kanuma City, Tochigi Prefecture, collectively known as Kanuma soil, as well as the high-iron-containing red Aro-7 ein produced in the Imaichi type, and the low-iron-containing yellow Aro-7 ein produced near Moka City, Tochigi Prefecture, are the main sources. Suitable for invention.

That is, the present invention is directed to these Aro7Einyiro0c~/
By firing at normal pressure in the range of θ00°C for several hours, for example 5 to 3 hours, and cooling, a porous fired Alo-7ein is obtained, which is used for deodorizing and moisture absorption.

In addition, when using natural materials such as the above-mentioned Kanuma soil, the raw material Alo-7ein is first collected and purified by woodblock printing to remove as many impurities as possible, collect the gel-like clay part, and air-dry for 30 minutes. ℃〜! Is it dried at θ℃ for several days?
Use as raw material.

This one next? Bake as described above. This fired material is porous, and by packaging the required amount and placing it appropriately in a breathable material such as Japanese paper, it provides a deodorizing and moisture absorption effect to the placed feces area. .

In addition, in the method of the present invention, 100Kff/
A pressure up to d may be applied. An example of the analytical values of the calcined Alo-7ein of the present invention thus obtained is shown below.

Ignition loss 8702 At203 F#203 Ca
OM(FON(!20 K20//,,Q ll
O, Ko 3 Tei, De 3.6 Ko, Za 0.9
．． 3. / 0. Next, an example of physical property values is shown below.

Bulk specific gravity 0.39, true specific gravity 1.3 da, fire resistance (S, K)
, 7$ (/7!rO℃) In the method of the present invention, those heated at iso℃ to 00℃ have particularly strong deodorizing ability, and due to their affinity for water, they can withstand temperatures of 300℃ to soo℃. Those heated at Colorants may also be added. In particular, an appropriate amount of chlorophyll can be added to give a pleasant color, and perapamint and jasmine can be added as fragrances to enhance a pleasant effect. Further, the present deodorizing and moisture absorbing agent can be inserted as it is into an exhaust gas outlet or a ventilation opening, and can also be used by being stored in a plastic container of any shape having a large number of ventilation holes.

Further, from the exhaust gas that has passed through the deodorizing and moisture absorbing agent, not only malodorous components but also fine dust particles contained in the passing gas are removed at the same time.

This product also acts as a decolorizing agent for petroleum solvents and as a desulfurizing agent for heavy oils. In particular, this effect is superior to red allofein, which contains a large amount of iron hydroxide, than yellow allofein.

(Effects of the Invention) The present invention enables the use of allophanes (for example, Kanuma soil) that exist in inexhaustible quantities in nature, and moreover, has extremely easy deodorizing and moisture absorption ability with only the simple means of calcination. This makes it possible to produce porous calcined allofein.Therefore, it has become possible to supply it at an extremely low price compared to known deodorizing agents such as activated carbon made from palm.Moreover, the deodorizing agent of the present invention The deodorizing agent of the present invention is superior to the known deodorizing properties mentioned above in that it also has moisture absorption ability.Furthermore, the deodorizing agent of the present invention can be recycled and is superior to the known deodorizing agent in this respect as well.

Next, the present invention will be explained with reference to examples.

(Example 1) Natural allofein (Kanuma clay) Porous fired allofein produced by firing at y soo℃ for 2 hours and cooling in the air! If you put something wrapped in washi paper in a chest of drawers, separate from the insect repellent camphor, the odor of camphor that permeates clothes will disappear.
It deodorizes so much that it cannot be distinguished by the human sense of smell, and at the same time, it dries without any mold growth! I was able to save my knee.

(Example 2) In order to investigate the deodorizing effect on the nicotine odor caused by cigarettes trapped in the interior of a car, the porous calcined allofein used in Example 1 was installed in the air flow path, and it was detected even by non-smokers. It completely disappeared.

(Example 3) Natural allofein (Kanuma soil) Y, 2oooC and r
Porous calcined allophein produced by firing at oo℃ for 2 hours? When the mixture was mixed and wrapped in Japanese paper and placed in a refrigerated container, not only the odors of onions, garlic, chives, etc., but also the water droplets that had adhered to the entire surface disappeared.

(Example 4) Wearing a deodorizing mask equipped with porous calcined Allofain T prepared under the same conditions as in Example 3, we smelled rotten tofu, garbage, and human excrement in a designated room. A good deodorizing effect was obtained without causing discomfort to the inhalation and breathing during use, and without causing disgust due to bad odors.

Procedural amendment (voluntary) September 27, 1985

Claims (2)

[Claims] (1) Deodorizing using porous calcined allofein as an active ingredient,
Moisture absorbent. (2) A method of producing porous fired allofein by firing allofein at a temperature range of 150° C. to 1000° C. and then cooling it.