CN104492379A - Adsorption-reaction type solid formaldehyde elimination agent - Google Patents
Adsorption-reaction type solid formaldehyde elimination agent Download PDFInfo
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- CN104492379A CN104492379A CN201410689012.XA CN201410689012A CN104492379A CN 104492379 A CN104492379 A CN 104492379A CN 201410689012 A CN201410689012 A CN 201410689012A CN 104492379 A CN104492379 A CN 104492379A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/46—Materials comprising a mixture of inorganic and organic materials
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Abstract
A disclosed adsorption-reaction type solid formaldehyde elimination agent is mainly composed of an adsorbent carrier supporting a reactant and a reaction promoter, and the mass ratio of the reactant, the reaction promoter and the adsorbent carrier is (0.032-0.144):(0.008-0.01):1. By employing the mode of cooperative usage of the reactant and the adsorbent promoter, formaldehyde in air is physically adsorbed by the adsorbent carrier, and also is subjected to a chemical reaction with the reactant on the adsorbent carrier, and finally formaldehyde is converted into a nontoxic odorless substance, and thorough removal of formaldehyde is realized. The aldehyde removal agent is convenient to use and free of pollution. Practices prove that after the aldehyde removal agent is used, air quality is obviously improved, also the aldehyde removal agent is low in price, and the aldehyde removal agent is especially suitable for household daily use.
Description
Technical field
The invention belongs to formaldehyde removing field, specifically, is a kind of adsorption reaction type solid formaldehyde remover.
Background technology
Wood-based plate is the important composition base material of existing ornament materials, in its production and application process, the burst size of formaldehyde has become a problem be day by day concerned, as everyone knows, need to add the adhesive containing formaldehyde in the process manufacturing wood-based plate, as urea-formaldehyde glue etc., and according to statistics display, domestic wood-based plate more than 90% all adopts urea-formaldehyde glue to suppress, thus no doubt can produce free formaldehyde when applying, being applied in Furniture manufacture or the application of other sheet material and often certain impact being produced on human body.In actual application, free formaldehyde Producing reason comprises the following aspects:
(1) insufficient and remaining free formaldehyde is reacted during resins synthesis;
(2) resins synthesis participates in reaction formaldehyde, owing to defining unstable group, heat press greatly with hard board use procedure in discharge again the formaldehyde combined;
(3) in board making process, owing to adding solid agent, under electrolytical effect, around resin micelle, the absorption ion layer of established tool stability is destroyed, thus discharges formaldehyde and cause hardening of resin.
To volatilize the injury that human body is caused for eliminating wood-based plate Free-formaldehyde, the greenization of wood-based plate is produced and has been become the crucial part affecting wood-based plate market, the existing safe wood-based plate occurring two types on the market, one is, as patent document CN1404891A(artificial board formaldehyde remover and preparation method, 2003.03.26) a kind of formaldehyde eliminating agent being applicable to wood-based panel industry production post processing recorded, this formaldehyde eliminating agent is for being coated in wood-based plate, enter after infiltration in wood-based plate and react with free formaldehyde wherein, to reach the effect eliminating free formaldehyde, another kind is, as patent document CN1739821A(ethylene carbamido amino derivative as formaldehyde eliminator, 2006.03.01) formaldehyde eliminating agent being applicable to add in amino resins recorded, with urea-formaldehyde glue etc. with the use of, to reach the object of removing urea-formaldehyde glue Free-formaldehyde.
In actual use, the volatilizes of free formaldehyde generally can continue 10 ~ 15 years, in above-mentioned two kinds of formaldehyde scavengers, the active ingredient added is limited, once after effect inefficacy, the free formaldehyde in wood-based plate still can discharge out in a large number, cause the pollution of room air, in addition, when formaldehyde scavenger and formaldehyde generation incomplete reaction, also may generate other noxious materials and cause secondary pollution.
Summary of the invention
The object of the present invention is to provide a kind of adsorption reaction type solid formaldehyde remover, this formaldehyde scavenger adopt reactant and adsorbing agent carrier with the use of mode, adsorbing agent carrier carries out physical absorption to the formaldehyde in air, and simultaneously on adsorbing agent carrier with reactant generation chemical reaction, finally make that formaldehyde conversion becomes nontoxic, tasteless substance, realize the thorough removing of formaldehyde, easy to use, pollution-free, be proven, use rear air quality be improved significantly, and cheap, especially suitable family routine use.
The present invention is achieved through the following technical solutions: a kind of adsorption reaction type solid formaldehyde remover, it is characterized in that: by ratio of quality and the number of copies, described formaldehyde eliminating agent primarily of load respond agent and reaction promoter adsorbing agent carrier composition, the ratio of quality and the number of copies of described reactant, reaction promoter and adsorbent is: reactant: reaction promoter: adsorbing agent carrier=(0.032 ~ 0.144): (0.008 ~ 0.01): 1.The present invention realizes the thorough removing of PARA FORMALDEHYDE PRILLS(91,95) by physical absorption and chemical reaction two kinds of modes, wherein, adsorbing agent carrier can realize the absorption of formaldehyde, by the formaldehyde that adsorbs on adsorbing agent carrier again with the reactant generation chemical reaction of load, finally make that formaldehyde conversion becomes nontoxic, tasteless substance, realize the thorough removing of formaldehyde, in the present invention, the effect of reaction promoter is: play catalytic action when reactant and formaldehyde react, to improve the elimination factor of free formaldehyde, be proven, its result of use is good.
The reaction that the present invention relates to can generate compound that is nontoxic, tasteless substance with formolite reaction, and the reactant that the present invention relates to can adopt the following two kinds type:
(1) reactant described in is mol ratio is the formamide of 1:1 and the mixture of ammonium carbonate composition.
(2) reactant described in be by mol ratio be the ethylenediamine of 1.5:1:0.5, urea, water mixes obtained ethyleneurea.
Further, described reaction promoter comprises the mixture of one or more compositions in magnesium sulfate, calcium sulfate, magnesium chloride or calcium chloride.
The adsorbing agent carrier that the present invention relates to should be selected specific area large and have the carrier of good adsorption properties, in the present invention, described adsorbing agent carrier is the one in active carbon, attapulgite clay, silica gel or diatomite, when practical application, except PARA FORMALDEHYDE PRILLS(91,95) has strong suction-operated, have taste gas also to have stronger suction-operated to the hydrogen sulfide in air, ammonia etc. are poisonous, practical effect is good.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the present invention utilizes the respond adsorbing agent carrier of agent of load the physical absorption of formaldehyde and chemical reaction to be combined, formaldehyde in air is after adsorbing agent carrier absorption, can with the reactant generation chemical reaction of its load, finally make that formaldehyde conversion becomes nontoxic, tasteless substance, formaldehyde (aldehyde material) a large amount of in removing air that can not only be permanently effective, the thorough removing of formaldehyde (aldehyde material) can also be realized, easy to use, pollution-free, be suitable for extensively promoting the use of.
(2) the present invention on adsorbing agent carrier also load to respond promoter, this reaction promoter can play catalytic action when reactant and formaldehyde react, to improve the elimination factor of free formaldehyde, be proven, the use of this reaction promoter, the concentration of formaldehyde in indoor air can be made to be reduced to safe range rapidly, and its practical effect is good.
(3) adsorbing agent carrier of the present invention can adopt the one in active carbon, attapulgite clay, silica gel or diatomite, when practical application, adsorbing agent carrier is except PARA FORMALDEHYDE PRILLS(91,95) has strong suction-operated, have taste gas also to have stronger suction-operated to the hydrogen sulfide in air, ammonia etc. are poisonous, practical effect is good.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment:
Embodiment 1:
Because existing artificial board can use phenolic aldehyde containing formaldehyde and Lauxite in process of production, and by the furniture of this class board making and building materials of house fitting-up etc. while using for people, in sheet material residual and have neither part nor lot in the formaldehyde of reaction can Environment release towards periphery gradually, the longest release period can for 15 years, for this reason, formaldehyde has become the main body of current room air pollution, based on the yoke of current people to the technological development of artificial board, as: the most aldehyde product Use Limitation that disappears is poor, , once after effect inefficacy, free formaldehyde in wood-based plate still can discharge out in a large number, cause the pollution etc. of room air, for solving the defect that prior art exists, the present invention proposes a kind of adsorption reaction type solid formaldehyde remover, this formaldehyde eliminating agent uses mainly for indoor environment, utilize the mode that physical absorption and chemical reaction combine, reach the thorough removing of formaldehyde, a large amount of formaldehyde in removing air that can not only be permanently effective, also formaldehyde conversion can be become nontoxic, tasteless substance, avoid the generation of secondary pollution.
The formaldehyde eliminating agent that the present embodiment relates to is made up of following component: by ratio of quality and the number of copies,
Adsorbing agent carrier: 1 part, can select active carbon;
Reactant: 0.032 part, can select mol ratio to be the formamide of 1:1 and the mixture of ammonium carbonate composition;
Reaction promoter: 0.008 part, can select magnesium sulfate.
In the present invention, reactant and reaction promoter are the chemical composition be carried on adsorbing agent carrier, adsorbing agent carrier should be selected specific area large and have the carrier of good adsorption properties, as the present embodiment mentions the one in active carbon, attapulgite clay, silica gel or diatomite, when practical application, except PARA FORMALDEHYDE PRILLS(91,95) has strong suction-operated, have taste gas also to have stronger suction-operated to the hydrogen sulfide in air, ammonia etc. are poisonous, practical effect is good.When reality uses, adsorbing agent carrier is by its strong suction-operated, taste gas is had to adsorb by poisonous to the formaldehyde in air and other, formaldehyde is carried out chemical reaction by the reactant adsorbing rear and its load, change into nontoxic, the thorough removing of formaldehyde is realized after tasteless substance, the effect of reaction promoter is: can play catalytic action when reactant and formaldehyde react, to improve the elimination factor of free formaldehyde, be proven, the use of this reaction promoter, the concentration of formaldehyde in indoor air can be made to be reduced to safe range rapidly, its practical effect is good.
The preparation method of the formaldehyde eliminating agent that the present embodiment relates to comprises the steps:
(1) get the raw materials ready: take in 500g, 300 object active carbons feeding thermostatic drying chambers and carry out drying, for subsequent use after dry 24h, choose hydrazide kind compound (as: mol ratio is the formamide of 1:1 and the mixture of ammonium carbonate composition) and the magnesium sulfate of solid powdery, the formamide of 160g and the magnesium sulfate of 20g is taken respectively in the ratio of 0.032:0.008, the hydrazide kind compound taken and magnesium sulfate are dissolved in the water of 100ml, reactant solution is obtained after stirring, for subsequent use;
(2) formaldehyde eliminating agent is prepared: the active carbon obtained after step (1) is dry puts into reactant solution, takes out after soaking 3h;
(3) dry: the active carbon after soaking to be sent in vacuum drying oven, after dry 20h, prepares the formaldehyde eliminating agent product of 536g.
The formaldehyde eliminating agent product that the present embodiment obtains is detected, first, the evaporating dish of the formalin filling 100ml, 72mg/ml is put in drier, volatilize after 5h under room temperature, take out evaporating dish in drier, then put into the evaporating dish filling 4g formaldehyde eliminating agent product and the beaker filling 100ml deionized water, with the concentration of formaldehyde in acetylacetone,2,4-pentanedione spectrophotometry deionized water after 24h, and calculating clearance, the formaldehyde clearance obtaining the present embodiment acquisition formaldehyde eliminating agent product is as calculated 98.2%.
Embodiment 2:
The formaldehyde eliminating agent that the present embodiment relates to is made up of following component: by ratio of quality and the number of copies,
Adsorbing agent carrier: 1 part, can select attapulgite clay;
Reactant: 0.144 part, can select ethyleneurea (as: by mol ratio be the ethylenediamine of 1.5:1:0.5, urea, water mixes obtained ethyleneurea);
Reaction promoter: 0.01 part, can select the mixture that calcium sulfate, magnesium chloride form, and wherein, the mass ratio of calcium sulfate and magnesium chloride is 1:1.
In the present invention, reactant and reaction promoter are the chemical composition be carried on adsorbing agent carrier, adsorbing agent carrier should be selected specific area large and have the carrier of good adsorption properties, as the present embodiment mentions the one in active carbon, attapulgite clay, silica gel or diatomite, when practical application, except PARA FORMALDEHYDE PRILLS(91,95) has strong suction-operated, have taste gas also to have stronger suction-operated to the hydrogen sulfide in air, ammonia etc. are poisonous, practical effect is good.When reality uses, adsorbing agent carrier is by its strong suction-operated, taste gas is had to adsorb by poisonous to the formaldehyde in air and other, formaldehyde is carried out chemical reaction by the reactant adsorbing rear and its load, change into nontoxic, the thorough removing of formaldehyde is realized after tasteless substance, the effect of reaction promoter is: can play catalytic action when reactant and formaldehyde react, to improve the elimination factor of free formaldehyde, be proven, the use of this reaction promoter, the concentration of formaldehyde in indoor air can be made to be reduced to safe range rapidly, its practical effect is good.
The preparation method of the formaldehyde eliminating agent that the present embodiment relates to comprises the steps:
(1) get the raw materials ready: take in 500g, 400 object attapulgite clays feeding thermostatic drying chambers and carry out drying, for subsequent use after dry 24h, choose the mixture of the ethyleneurea of solid powdery and calcium sulfate, magnesium chloride composition, ethyleneurea and the calcium sulfate of 25g, the mixture of magnesium chloride composition of 360g is taken respectively in the ratio of 0.144:0.01, the mixture that the ethyleneurea taken and calcium sulfate, magnesium chloride form is dissolved in the water of 100ml, reactant solution is obtained after stirring, for subsequent use;
(2) formaldehyde eliminating agent is prepared: the attapulgite clay obtained after step (1) is dry puts into reactant solution, takes out after soaking 5h;
(3) dry: the attapulgite clay after soaking to be sent in vacuum drying oven, after dry 24h, prepares the formaldehyde eliminating agent product of 575g.
The formaldehyde eliminating agent product that the present embodiment obtains is detected, first, the evaporating dish of the formalin filling 100ml, 72mg/ml is put in drier, volatilize after 5h under room temperature, take out evaporating dish in drier, then put into the evaporating dish filling 4g formaldehyde eliminating agent product and the beaker filling 100ml deionized water, with the concentration of formaldehyde in acetylacetone,2,4-pentanedione spectrophotometry deionized water after 24h, and calculating clearance, the formaldehyde clearance obtaining the present embodiment acquisition formaldehyde eliminating agent product is as calculated 99.3 %.
Embodiment 3:
The formaldehyde eliminating agent that the present embodiment relates to is made up of following component: by ratio of quality and the number of copies,
Adsorbing agent carrier: 1 part, can select silica gel;
Reactant: 0.062 part, can select mol ratio to be the formamide of 1:1 and the mixture of ammonium carbonate composition;
Reaction promoter: 0.009 part, can select calcium sulfate.
In the present invention, reactant and reaction promoter are the chemical composition be carried on adsorbing agent carrier, adsorbing agent carrier should be selected specific area large and have the carrier of good adsorption properties, as the present embodiment mentions the one in active carbon, attapulgite clay, silica gel or diatomite, when practical application, except PARA FORMALDEHYDE PRILLS(91,95) has strong suction-operated, have taste gas also to have stronger suction-operated to the hydrogen sulfide in air, ammonia etc. are poisonous, practical effect is good.When reality uses, adsorbing agent carrier is by its strong suction-operated, taste gas is had to adsorb by poisonous to the formaldehyde in air and other, formaldehyde is carried out chemical reaction by the reactant adsorbing rear and its load, change into nontoxic, the thorough removing of formaldehyde is realized after tasteless substance, the effect of reaction promoter is: can play catalytic action when reactant and formaldehyde react, to improve the elimination factor of free formaldehyde, be proven, the use of this reaction promoter, the concentration of formaldehyde in indoor air can be made to be reduced to safe range rapidly, its practical effect is good.
The preparation method of the formaldehyde eliminating agent that the present embodiment relates to comprises the steps:
(1) get the raw materials ready: take in 500g, 350 object silica gel feeding thermostatic drying chambers and carry out drying, for subsequent use after dry 24h, choose hydrazide kind compound (as: mol ratio is the formamide of 1:1 and the mixture of ammonium carbonate composition) and the calcium sulfate of solid powdery, the hydrazide kind compound of 155g and the calcium sulfate of 22.5g is taken respectively in the ratio of 0.062:0.009, the hydrazide kind compound taken and calcium sulfate are dissolved in the water of 100ml, reactant solution is obtained after stirring, for subsequent use;
(2) formaldehyde eliminating agent is prepared: reactant solution put into by the silica gel obtained after step (1) is dry, takes out after soaking 4h;
(3) dry: the silica gel after soaking to be sent in vacuum drying oven, after dry 22h, prepares the formaldehyde eliminating agent product of 535.5g.
The formaldehyde eliminating agent product that the present embodiment obtains is detected, first, the evaporating dish of the formalin filling 100ml, 72mg/ml is put in drier, volatilize after 5h under room temperature, take out evaporating dish in drier, then put into the evaporating dish filling 4g formaldehyde eliminating agent product and the beaker filling 100ml deionized water, with the concentration of formaldehyde in acetylacetone,2,4-pentanedione spectrophotometry deionized water after 24h, and calculating clearance, the formaldehyde clearance obtaining the present embodiment acquisition formaldehyde eliminating agent product is as calculated 98.8%.
Embodiment 4:
The formaldehyde eliminating agent that the present embodiment relates to is made up of following component: by ratio of quality and the number of copies,
Adsorbing agent carrier: 1 part, can select diatomite;
Reactant: 0.08 part, can select ethyleneurea (as: by mol ratio be the ethylenediamine of 1.5:1:0.5, urea, water mixes obtained ethyleneurea);
Reaction promoter: 0.008 part, can select the mixture that magnesium sulfate, magnesium chloride or calcium chloride form, wherein, and magnesium sulfate: magnesium chloride: calcium chloride=1:1:1.
In the present invention, reactant and reaction promoter are the chemical composition be carried on adsorbing agent carrier, adsorbing agent carrier should be selected specific area large and have the carrier of good adsorption properties, as the present embodiment mentions the one in active carbon, attapulgite clay, silica gel or diatomite, when practical application, except PARA FORMALDEHYDE PRILLS(91,95) has strong suction-operated, have taste gas also to have stronger suction-operated to the hydrogen sulfide in air, ammonia etc. are poisonous, practical effect is good.When reality uses, adsorbing agent carrier is by its strong suction-operated, taste gas is had to adsorb by poisonous to the formaldehyde in air and other, formaldehyde is carried out chemical reaction by the reactant adsorbing rear and its load, change into nontoxic, the thorough removing of formaldehyde is realized after tasteless substance, the effect of reaction promoter is: can play catalytic action when reactant and formaldehyde react, to improve the elimination factor of free formaldehyde, be proven, the use of this reaction promoter, the concentration of formaldehyde in indoor air can be made to be reduced to safe range rapidly, its practical effect is good.
The preparation method of the formaldehyde eliminating agent that the present embodiment relates to comprises the steps:
(1) get the raw materials ready: take in 500g, 360 object diatomite feeding thermostatic drying chambers and carry out drying, for subsequent use after dry 24h, choose the ethyleneurea of solid powdery and the mixture of magnesium sulfate, magnesium chloride or calcium chloride composition, the mixture of the magnesium sulfate of the ethyleneurea of 200g and 20g, magnesium chloride or calcium chloride composition is taken respectively in the ratio of 0.08:0.008, the mixture of the ethyleneurea taken and magnesium sulfate, magnesium chloride or calcium chloride composition is dissolved in the water of 100ml, reactant solution is obtained after stirring, for subsequent use;
(2) formaldehyde eliminating agent is prepared: the diatomite obtained after step (1) is dry puts into reactant solution, takes out after soaking 3.5h;
(3) dry: the diatomite after soaking to be sent in vacuum drying oven, after dry 24h, prepares the formaldehyde eliminating agent product of 544g.
The formaldehyde eliminating agent product that the present embodiment obtains is detected, first, the evaporating dish of the formalin filling 100ml, 72mg/ml is put in drier, volatilize after 5h under room temperature, take out evaporating dish in drier, then put into the evaporating dish filling 4g formaldehyde eliminating agent product and the beaker filling 100ml deionized water, with the concentration of formaldehyde in acetylacetone,2,4-pentanedione spectrophotometry deionized water after 24h, and calculating clearance, the formaldehyde clearance obtaining the present embodiment acquisition formaldehyde eliminating agent product is as calculated 98.7%.
Embodiment 5:
The formaldehyde eliminating agent that the present embodiment relates to is made up of following component: by ratio of quality and the number of copies,
Adsorbing agent carrier: 1 part, can select attapulgite clay;
Reactant: 0.1 part, can select ethyleneurea (as: by mol ratio be the ethylenediamine of 1.5:1:0.5, urea, water mixes obtained ethyleneurea);
Reaction promoter: 0.0095 part, can select magnesium chloride;
In the present invention, reactant and reaction promoter are the chemical composition be carried on adsorbing agent carrier, adsorbing agent carrier should be selected specific area large and have the carrier of good adsorption properties, as the present embodiment mentions the one in active carbon, attapulgite clay, silica gel or diatomite, when practical application, except PARA FORMALDEHYDE PRILLS(91,95) has strong suction-operated, have taste gas also to have stronger suction-operated to the hydrogen sulfide in air, ammonia etc. are poisonous, practical effect is good.When reality uses, adsorbing agent carrier is by its strong suction-operated, taste gas is had to adsorb by poisonous to the formaldehyde in air and other, formaldehyde is carried out chemical reaction by the reactant adsorbing rear and its load, change into nontoxic, the thorough removing of formaldehyde is realized after tasteless substance, the effect of reaction promoter is: can play catalytic action when reactant and formaldehyde react, to improve the elimination factor of free formaldehyde, be proven, the use of this reaction promoter, the concentration of formaldehyde in indoor air can be made to be reduced to safe range rapidly, its practical effect is good.
The preparation method of the formaldehyde eliminating agent that the present embodiment relates to comprises the steps:
(1) get the raw materials ready: take in 500g, 325 object attapulgite clays feeding thermostatic drying chambers and carry out drying, for subsequent use after dry 24h, choose ethyleneurea and the magnesium chloride of solid powdery, the ethyleneurea of 250g and the magnesium chloride of 23.75g is taken respectively in the ratio of 0.1:0.0095, the ethyleneurea taken and magnesium chloride are dissolved in the water of 100ml, reactant solution is obtained after stirring, for subsequent use;
(2) formaldehyde eliminating agent is prepared: the attapulgite clay obtained after step (1) is dry puts into reactant solution, takes out after soaking 4.5h;
(3) dry: the attapulgite clay after soaking to be sent in vacuum drying oven, after dry 23h, prepares the formaldehyde eliminating agent product of 554.75g.
The formaldehyde eliminating agent product that the present embodiment obtains is detected, first, the evaporating dish of the formalin filling 100ml, 72mg/ml is put in drier, volatilize after 5h under room temperature, take out evaporating dish in drier, then put into the evaporating dish filling 4g formaldehyde eliminating agent product and the beaker filling 100ml deionized water, with the concentration of formaldehyde in acetylacetone,2,4-pentanedione spectrophotometry deionized water after 24h, and calculating clearance, the formaldehyde clearance obtaining the present embodiment acquisition formaldehyde eliminating agent product is as calculated 98.9%.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (5)
1. an adsorption reaction type solid formaldehyde remover, it is characterized in that: by ratio of quality and the number of copies, described formaldehyde eliminating agent primarily of load respond agent and reaction promoter adsorbing agent carrier composition, the ratio of quality and the number of copies of described reactant, reaction promoter and adsorbent is: reactant: reaction promoter: adsorbing agent carrier=(0.032 ~ 0.144): (0.008 ~ 0.01): 1.
2. a kind of adsorption reaction type solid formaldehyde remover according to claim 1, is characterized in that: described reactant is mol ratio is the formamide of 1:1 and the mixture of ammonium carbonate composition.
3. a kind of adsorption reaction type solid formaldehyde remover according to claim 1, is characterized in that: described reactant be by mol ratio be the ethylenediamine of 1.5:1:0.5, urea, water mixes obtained ethyleneurea.
4. a kind of adsorption reaction type solid formaldehyde remover according to claim 1, is characterized in that: described reaction promoter comprises the mixture of one or more compositions in magnesium sulfate, calcium sulfate, magnesium chloride or calcium chloride.
5. a kind of adsorption reaction type solid formaldehyde remover according to any one of Claims 1 to 4, is characterized in that: described adsorbing agent carrier is the one in active carbon, attapulgite clay, silica gel or diatomite.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106146402A (en) * | 2016-07-12 | 2016-11-23 | 广东欧帝尼节能科技有限公司 | The preparation method of a kind of 2 imidazolidinones and formaldehyde scavenger |
| CN108619907A (en) * | 2018-04-28 | 2018-10-09 | 南京工业大学 | A kind of urea for vehicle reducing agent solution |
| CN108786742A (en) * | 2018-06-27 | 2018-11-13 | 杨秋林 | A kind of rare earth compound air purification material and preparation method thereof |
| CN109589945A (en) * | 2018-12-26 | 2019-04-09 | 郑州绿佳环保科技有限公司 | A kind of formaldehyde scavenger and preparation method thereof |
| CN112316490A (en) * | 2020-10-10 | 2021-02-05 | 江苏富淼科技股份有限公司 | Method for reducing formaldehyde in dimethyl diallyl ammonium chloride by using modified diatomite |
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| CN109589945B (en) * | 2018-12-26 | 2021-12-14 | 郑州绿佳环保科技有限公司 | Formaldehyde scavenging agent and preparation method thereof |
| CN112316490A (en) * | 2020-10-10 | 2021-02-05 | 江苏富淼科技股份有限公司 | Method for reducing formaldehyde in dimethyl diallyl ammonium chloride by using modified diatomite |
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