CN1101290A

CN1101290A - Freshing agent

Info

Publication number: CN1101290A
Application number: CN 93118840
Authority: CN
Inventors: 蒋晶洁; 孙贵权
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-05
Filing date: 1993-10-05
Publication date: 1995-04-12

Abstract

The freshing agent consists of active carbon as substrate and molecular sieve as auxilllary adsorbent to attain physical adsoption. Iron-dihydrogen-phosphate and phosphoric acid are added to attain chemical adsorption. Then a proper quantity of acid carbonates such as sodium hydrogen carbonate are mixed to intensify the active center of physical and chemical adsorption and keep fresh. At last, a little bacteriostat and bactericide are also supplemented. The freshing agent has stronge ability in deodorization, fresh-keeping and clear-up, so it is suitable for refrigerator, cold storageroom and toilet, etc.

Description

Freshing agent

The invention belongs to a kind of freshing agent.

Existing deodorizer can be divided into two major types by absorption principle, and a class is a physisorption type deodorizer, and with active carbon, meerschaum is typical case's representative.Its advantage is that absorption is wide, and all gases is all had absorbability, but lacks selectivity, and another kind of is chemical reaction type deodorizer.Selective absorption is good, but adsorbent self is difficult to regeneration.This two classes deodorizer all lacks preservativity, do not do antibacterial or sterilization treatment yet, make deodorizer very easily become vegetative place, cause the smelly degeneration of deodorizer self deodorizer, absorbability descends, and causes the operating period of adsorbent and service life to shorten greatly.

Existing antistaling agent does not often possess the deodorization detergent power.Up to the present, finding as yet can deodorization, fresh-keeping, has carried out sterilization treatment again and the freshing agent that the absorption of gas has a fine selectivity is come out.

The purpose of this invention is to provide a kind of melt physical absorption, chemisorbed in one, to stink, the gas with foreign flavor selective absorption is good, adsorption capacity is big, can carry out antibacterial, sterilization treatment to deodorizer again, make the antibacterial loss of activity and the fertility that are adsorbed on the freshing agent, can also be to air cleaning, to the deodorizing and fresh-keeping agent of food fresh keeping.

For achieving the above object, the present invention is achieved in that with the active carbon to be host material, and the apolegamy molecular sieve is realized physical absorption for auxiliary adsorbent.Add primary iron phosphate, phosphoric acid, further strengthen absorbability, realize chemisorbed.Call in an amount of acid carbonate then, as sodium bicarbonate, to increase the active center of physical and chemical adsorption, play preservation simultaneously, and add a spot of antibacterial, biocide is formed deodorization, fresh-keeping and purifying agent.This freshing agent has the deodorize ability of HHT higher high tensile, has purification, preservativity simultaneously.Owing to integrate physical absorption and chemisorbed in the present invention, added antistaling agent again, biocide, so this freshing agent absorbability is extremely strong, prevent the movable and breeding of antibacterial effectively, eliminated the reason that causes the smelly degeneration of freshing agent itself, simultaneously again can be to food fresh keeping, to air cleaning, harmless to the human body beneficial.

Below raw material preparation of the present invention, production process, concrete enforcement and products thereof performance is described in detail.

One, the preparation of raw material

(1) preparation of material carbon

Rice husk, wood flour are put into retort,, make non-carbons such as oxygen in the raw material, hydrogen, most of low molecular product such as CO, CO at 400-600 ℃ of carbonization 4-8 hour ₂, H ₂Volatilization such as O and low molecule organic matter is gone out, and generates solid-state carbide at last.

(2) the raw material charcoal is through the gas activation preparing active carbon

1, the raw material charcoal is added in the alkali cleaning bucket, add 30% sodium hydroxide solution (concentration is 50%) of activated material amount, stirred 3 hours.Extremely neutral with water rinse then, filtration.Dry filtering residue, make the hygrometric state active carbon.

2, will be by the 1 hygrometric state active carbon that the makes activation furnace of packing into, 200-300 ℃ down activation naturally cooled to room temperature then in 5-7 hour and make activated material.

(3) sodium bicarbonate

The purpose that adds sodium bicarbonate increases the breathability of freshing agent exactly.Promptly increase specific surface area.Simultaneously, make the freshing agent product be alkalescence, make fungus (the infectivity pathogenic bacteria is a fungus) LOM in alkaline solution.

(4) primary iron phosphate

Promote chemisorbed, remove ammonia, foul gass such as organic amine.

(5) potassium permanganate

The purpose that adds potassium permanganate is sterilization, fresh-keeping.

(6) commodity molecular sieve

Make adsorbent with molecular sieve, select the bigger foul smell molecule of absorbing molecules diameter.Molecular sieve can be used sodium X type, and its molecular formula is

Na ₅₆[(ALO ₂) ₅₆（SiO ₂) ₁₀₆]·264H ₂O。

Two, production process

1, system deodorizer

Get active carbon successively by 100: 2: 10 optimal proportions, primary iron phosphate, phosphoric acid evenly stir half an hour and mix, and add suitable quantity of water and send into nodulizer, make the bead that diameter is the 2-3 millimeter, then, send into drying baker 120 ℃ of oven dry 5-6 hour.At last, naturally cooling to room temperature gets final product.

2, system antistaling disinfectant

Active carbon put into contain 0.5% potassium permanganate, 10% sodium bicarbonate solution soaked 8 hours, filtered then, took out the hygrometric state active carbon, sent into drying baker, 120 ℃ of oven dry 6 hours.At last by 100: 36: 50: 120 optimal proportion is got and has been dried, contains potassium permanganate, the active carbon of sodium bicarbonate, milky white adhesive, silica white, water is behind stirring mix homogeneously half an hour, send into nodulizer, make the bead of diameter 2-3 millimeter, send into drying baker then and dried 2-3 hour down at 120 ℃.Make antistaling disinfectant at last.

3, by deodorizer and the agent of antistaling disinfectant combination system deodorizing sterilizing fresh-keeping and purifying

Get deodorizer and antistaling disinfectant stirring successively by 3: 1 optimal proportions, mixed, make the agent of deodorizing sterilizing fresh-keeping and purifying, packing gets final product then.

Deodorizer is acid, and antistaling disinfectant is an alkalescence, in order to prevent to lose efficacy because of acid-base neutralization causes deodorizing and fresh-keeping agent, must produce respectively, unites two into one then.

Three, embodiment

1, takes by weighing the activated carbon of 9.0kg, 0.18kg primary iron phosphate, 0.9kg, stir on 75% phosphoric acid limit, and the limit adds suitable quantity of water, and stirring is sent into nodulizer after half an hour and made the granule bead that diameter is the 2-3 millimeter, send into drying baker then, 120 ℃ of oven dry 6 hours, last natural cooling was made deodorizer.

2, the active carbon that takes by weighing 3kg is put into and is contained 0.5% potassium permanganate, soaks 8 hours in 10% the sodium bicarbonate solution, filters then, takes out the hygrometric state active carbon, sends into drying baker, 120 ℃ dry 6 hours down, naturally cool to room temperature then.

3, take by weighing the active carbon 3kg that handles through 2, milky white adhesive 1.08kg, silica white 1.5kg, water 3.06kg stirs and sent into nodulizer behind the mix homogeneously in 10 minutes, makes the bead of diameter 2-3 millimeter, send into drying baker,, make antistaling disinfectant at last 120 ℃ of oven dry 2-3 hour.

4, the learn from else's experience 1 deodorizer 9kg that makes and make antistaling disinfectant 3kg through 3, evenly mixed, batch wrapping is produced freshing agent.

The present invention can be used for refrigerator, the place of cold room, vehicle, laboratory, lavatory and various generation harmful gass.

Claims

1, a kind of freshing agent is characterized in that with the active carbon being host material, and the apolegamy molecular sieve is auxiliary adsorbent, realize physical absorption, add primary iron phosphate, phosphoric acid is realized chemisorbed with further enhancing absorbability, call in an amount of acid carbonate then, to strengthen the active center of physical and chemical adsorption, play preservation simultaneously, and add a spot of antibacterial, biocide forms freshing agent.

2, by right 1 described freshing agent, it is characterized in that the physical absorption composition is active carbon and molecular sieve, molecular sieve is the NaX type, and its molecular formula is Na ₅₆(ALO ₂) ₅₆(SiO ₂) 264H ₂O.

3, by right 1 described freshing agent, it is characterized in that the chemisorbed composition is a primary iron phosphate, phosphoric acid, its molecular formula are respectively Fe (H ₂PO ₄) ₃, H ₃PO ₄

4, by right 1 described freshing agent, it is characterized in that antibacterial, sterilising components is a potassium permanganate, its molecular formula is KMnO ₄

5, by right 1 described freshing agent, the optimal proportion that it is characterized in that active carbon, primary iron phosphate, phosphoric acid is 100: 2: 10.

6, by right 1 described freshing agent, the optimal proportion that it is characterized in that active carbon, milky white adhesive, silica white and water is 100: 36: 50: 120.