CN1775295A

CN1775295A - Refrigerator deodorant of natural organics

Info

Publication number: CN1775295A
Application number: CN 200510047823
Authority: CN
Inventors: 程秀莲
Original assignee: Shenyang Ligong University
Current assignee: Shenyang University of Technology; Shenyang Ligong University
Priority date: 2005-11-25
Filing date: 2005-11-25
Publication date: 2006-05-24
Anticipated expiration: 2025-11-25
Also published as: CN100360188C

Abstract

The present invention relates to a deodorant for refrigerator. It includes package ox, deodorant granules and box cover. Said package box is made into cylindrical form, its periphery is equipped with uniformly-distributed air holes, the deodorant granules are placed in the box interior, the top portion of said box is covered with said box cover. The deodorant granules are made up by using humic acid, bentonite and anhydrous copper sulfate through a certain preparation process, in which the humic acid can be used for chemically adsorbing weakly-alkaline gas produced by putrid food, the anhydrous copper sulfate can be used for chemically adsorbing weakly-acidic and weakly-alkaline gas produced by putrid food, and the humic acid and bentonite can be used for physically adsorbing various gases.

Description

Refrigerator deodorant containing natural organic matters

Technical Field

The invention belongs to the technology of refrigerator deodorizers, and particularly relates to a refrigerator deodorizer for deodorizing by chemical adsorption of natural organic matters.

Background

At present, the refrigerator deodorant sold in the domestic market mainly takes inorganic porous substances such as active carbon, zeolite, medical stone, sepiolite and the like as main raw materials, and removes the smell by physical adsorption, so that the following problems generally exist:

1. the adsorption capacity is small, because the used inorganic porous substance is physical adsorption, the size of the active surface is in direct proportion to the adsorption capacity, and the odor quantity of the refrigerator adsorbed by the active surface is obviously reduced after the active surface adsorbs air and moisture. Such as: the adsorption capacity of the activated carbon raw particles to ammonia gas is 192hr and 31mg/g, the adsorption capacity to water vapor is 312hr and 16mg/g, and after water is adsorbed, the adsorption capacity to ammonia gas is reduced sharply to 216hr and 8mg/g is adsorbed;

2. the adsorption speed is slow, and the adsorption speed is reduced because the physical adsorption binding force is small and the desorption speed is high. Such as: the adsorption speed of the activated carbon raw particles to saturated ammonia gas is 0.16mg/g.hr, and after water is adsorbed, the adsorption speed to the ammonia gas is reduced to 0.037 mg/g.hr;

3. the function is single, the inorganic porous substance is a pure deodorant, and other additional functions such as sterilization, fresh keeping and the like are not provided. For example, the natural mineral deodorant with the patent number of CN1328852, the refrigerator fresh-keeping deodorant with the patent number of CN1237479 and the refrigerator deodorizer with the patent number of CN1262418 have the bactericidal effect, but the absorbent has the bactericidal effect and is added with the medicinal bactericide. The added medicinal bactericide not only increases the cost of the deodorant, but also can be harmful to human bodies.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides the refrigerator deodorant which takes natural organic matters as main raw materials, depends on chemical adsorption, has high adsorption speed, large adsorption capacity, environmental protection, sterilization and preservation and low cost, has small influence on deodorization by the adsorption of air and water, and is suitable for the requirements of deodorization, sterilization and preservation of household refrigerators.

The invention is composed of a packing box, deodorant particles and a box cover, wherein the cylindrical packing box with air holes uniformly distributed on the circumference is filled with the deodorant particles, the box cover is covered on the packing box, the deodorant particles are round particles which are prepared by mixing, granulating and drying humic acid, bentonite and anhydrous copper sulfate, and the weight ratio of the humic acid to the anhydrous copper sulfate is as follows: 45-85% of humic acid, 10-60% of bentonite and 1-35% of anhydrous copper sulfate, or the deodorant particles are round particles obtained by mixing, granulating and drying the humic acid and the bentonite, and the weight ratio of the humic acid to the bentonite is as follows: 45-85% of humic acid and 10-60% of bentonite.

Humic acid of the refrigerator deodorant chemically adsorbs food decay to generate alkalescent gas, anhydrous copper sulfate chemically adsorbs food decay to generate faintly acid and alkalescent gas, and humic acid and bentonite can physically adsorb various gases.

The invention has the advantages of high adsorption speed, large adsorption capacity, obvious environment-friendly sterilization and preservation effects, low cost and the like, has small influence on deodorization by the adsorption of air and moisture, and is suitable for deodorizing, sterilizing and preserving the refrigerator at home and eliminating the need of harmful gas formaldehyde in indoor decoration.

Detailed Description

The deodorant granules of the present invention are further illustrated by reference to examples, in which 30g of deodorant is calculated in each of the following examples.

The first embodiment is as follows:

adding 20.5g of humic acid, 1.4g of anhydrous copper sulfate and 8.1g of bentonite into a beaker, starting stirring, uniformly mixing, adding 8.2g of water, stirring to form a paste with certain hardness, forming into round particles of 1-1.5 mm, drying at 130 ℃ to constant weight, and packaging. The odor removing effect is as follows: the deodorant is 72hr, can adsorb ammonia gas 212mg/g, and triethylamine 115 mg/g: adsorbing 79mg/g of hydrogen sulfide gas. The absorption amount of formaldehyde which is harmful gas in indoor decoration is 145mg/g within 72 hours.

Example two:

adding 20.1g of humic acid, 1.8g of anhydrous copper sulfate and 8.1g of bentonite into a beaker, starting stirring, uniformly mixing, adding 8g of water, stirring to form a paste with certain hardness, forming into round particles of 1-1.5 mm, drying at 150 ℃ to constant weight, and packaging. The odor removing effect is as follows: the deodorant can adsorb ammonia gas 264mg/g, triethylamine 144 mg/g: adsorbing 83mg/g of hydrogen sulfide gas. The absorption amount of formaldehyde which is harmful gas in indoor decoration is 111mg/g within 72 hr.

Example three:

adding 18.8g of humic acid, 3.7g of anhydrous copper sulfate and 7.5g of bentonite into a beaker, starting stirring, uniformly mixing, adding 7g of water, stirring to form a paste with certain hardness, forming into round particles of 1-1.5 mm, drying at 140 ℃ to constant weight, and packaging. The odor removing effect is as follows: the deodorant is used for 72hr, ammonia gas is 278mg/g can be adsorbed, triethylamine is 188mg/g is adsorbed: adsorbing 78mg/g of hydrogen sulfide gas. The absorption amount of formaldehyde which is harmful gas in indoor decoration is 131mg/g within 72 hours.

Example four:

adding 21.4g of humic acid and 8.6g of bentonite into a beaker, starting stirring, uniformly mixing, adding 8g of water, stirring to form a paste with certain hardness, forming into round particles with the diameter of 1-1.5 mm, drying at the temperature of 140 ℃ to constant weight, and packaging. The odor removing effect is as follows: the smell removing agent is 72hr, can adsorb ammonia gas 225mg/g, and triethylamine 102 mg/g: adsorbing hydrogen sulfide gas 36 mg/g. The absorption amount of formaldehyde which is harmful gas in indoor decoration is 85mg/g within 72 hours.

Humic acid is a natural organic substance, and the chemical structure form of the humic acid is as follows:

or

The existence of H in humic acid can be confirmed by infrared spectroscopy₃O⁺And non-ionized COOH groups and COO^-Ions. Therefore, the composite material has stronger chemical adsorption effect on alkaline gas, is non-toxic and harmless, has sterilization capability, is very similar to active carbon in state when being ground to about 80 meshes, is porous, and has good adsorption effect on non-alkaline gas and heavy metal ions. In the deodorant, the functions of absorbing the rotten basic odor of food and releasing the sterilization are mainly performed. The adsorption capacity of the humic acid raw particles to ammonia gas is 192hr for 267mg/g, and the adsorption capacity to water vapor is 312hr for adsorption81mg/g, the adsorption capacity for ammonia gas after adsorbing water was reduced to 216hr for 149mmg/g adsorption. The absorption rate of the humic acid raw particles to saturated ammonia gas is 1.39mg/g.hr, and after water is absorbed, the absorption rate to ammonia gas is reduced to 0.69 mg/g.hr.

Bentonite is a natural inorganic substance, and the main component of the bentonite is silicate mineral substance and the main chemical composition of the bentonite is SiO₂、Al₂O₃And H₂And O. Has excellent moldability, good adsorption ability to various gases, and moldability in the deodorantThe function of (1).

The anhydrous copper sulfate has adsorption effect on weakly acidic hydrogen sulfide gas and alkaline gas generated by food spoilage.

The deodorant mainly functions to adsorb weakly acidic gases such as hydrogen sulfide generated by food spoilage.

Claims

1. The refrigerator deodorant is characterized by comprising a packaging box, deodorant particles and a box cover, wherein the deodorant particles are filled in the cylindrical packaging box uniformly provided with air holes on the circumference, the box cover is covered on the packaging box, the deodorant particles are round particles obtained by mixing, granulating and drying humic acid, bentonite and anhydrous copper sulfate, and the weight ratio of the humic acid to the anhydrous copper sulfate is as follows: 45-85% of humic acid, 10-60% of bentonite and 1-35% of anhydrous copper sulfate.

2. The refrigerator deodorant of natural organic matters according to claim 1, wherein the deodorant particles are round particles obtained by mixing, granulating and drying humic acid and bentonite, and the weight ratio of the humic acid to the bentonite is as follows: 42-85% of humic acid and 10-60% of bentonite.