CN103721533A - Deoxidizing and drying agent and preparation method thereof - Google Patents
Deoxidizing and drying agent and preparation method thereof Download PDFInfo
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- CN103721533A CN103721533A CN201310717752.5A CN201310717752A CN103721533A CN 103721533 A CN103721533 A CN 103721533A CN 201310717752 A CN201310717752 A CN 201310717752A CN 103721533 A CN103721533 A CN 103721533A
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Abstract
The invention discloses a deoxidizing and drying agent which comprises the following components in parts by weight: 10-60 parts of bentonite, 10-40 parts of attapulgite, 1-20 parts of bamboo charcoal powder, 1-20 parts of fine iron powder, 1-10 parts of refined manganese dioxide, 1-10 parts of quicklime, 0.01-1 part of calcium chloride and 0.01-1 part of calcium propionate. The invention also discloses a preparation method of the deoxidizing and drying agent. The deoxidizing and drying agent can be widely used in the fields of medical health-care products, instruments and equipment, food, feed and other industries, and has the all-inclusive deoxidizing and drying effects of removing heavy metals, harmful or smelly gas, bacteria and the like; and the deoxidizing and drying agent has the advantages of cheap and accessible raw materials, simple preparation technique and long effective period, has very broad market prospects and is suitable for large-scale popularization and application.
Description
Technical field
The invention belongs to deoxidation drying agent technical field, relate to a kind of deoxidation drying agent and preparation method thereof.
Background technology
Drier is also adsorbent, is to be used in protection against the tide, and mildew-resistant aspect, plays desiccation, by suction type and product, is not all minute physical absorption drier and chemisorbed drier.The drier of physical absorption has silica gel, alumina gel, molecular sieve, active carbon, bone black, charcoal, mineral agent, or atlapulgite etc., its drying principles be exactly by physics mode by Water Molecular Adsorption in the structure of self.
The current domestic common Bio-sil drier that is mainly, silica-gel desiccant is a kind of high activity sorbing material, main component is silica, normally uses sodium metasilicate and sulfuric acid reaction, and makes through a series of last handling processes such as aging, acid bubbles.Silica gel belongs to amorphous substance, the transparent irregular spheroid of its shape, and its chemical molecular formula is mSiO2.nH2O.Glue drier has that absorption property is high, Heat stability is good, stable chemical nature, have the higher features such as mechanical strength.It is slow that but this drier cost is depressed water suction for high and low minute, and be with subacidity.
Bentonite drier is a kind of as in novel drier, can be applicable to food, medicine, textile, instrument and meter, electrical equipment, marine site goods and various connection with wrapping of piece aspect, bentonite drier is in American and Britain, the extensive use of Fa Deng state, and it has the advantages such as hygroscopic capacity is large, absorption speed is fast, cost is low, corrosion-free.Meanwhile, more low-grade bentonite drier, also can be used as the dry deodorant of pet, and that this product is in great demand is domestic, Hongkong and Macro, Taiwan and outlet Thailand, Singapore and south east asia.Bentonite drier, except above-mentioned characteristic is better than normally used silica-gel desiccant, also has following characteristics: under same moisture absorption condition, moisture absorption is long effective time; Cheap, price is 1/3 of silica gel; Processing technology is simple; Safety, environmental protection.It is worth mentioning that: packed bentonite desiccant package specification, is needed to determine by user; In addition, the good raw ore of quality, can directly drier is processed in fragmentation, such processing cost can reduce, although this product unit hydroscopicity is lower, but can improve moisture sorption effect with increase Packing Unit.
Domestic patent database also discloses the correlation technique of many bentonite drier:
For example: [application number] CN201110191385.0[title] powdery tea moisture-proof deoxidizing antistaling agent [applicant] Xu Shengying, a kind of powdery tea moisture-proof deoxidizing antistaling agent is disclosed, the main points of its technical scheme are, red bentonite, dolomite Concave-convex clay rod, bauxite and the reduced iron powder of powdery tea moisture-proof deoxidizing antistaling agent after by acidifying forms.The production method of powdery tea moisture-proof deoxidizing antistaling agent: red bentonite, dolomite Concave-convex clay rod, bauxite are mixed and carry out jointly pulverizing with reduced iron powder after acidifying, compressing tablet and heat treatment, be packaged as powdery tea moisture-proof deoxidizing antistaling agent.Powdery tea moisture-proof deoxidizing antistaling agent is placed in the packing container of tealeaves, it is moistureproof that deoxidation is fresh-keeping synchronously carries out, tealeaves carries out deoxidation and fresh-keeping under drying regime, can remove free oxygen and free water in tea packaging, keep tealeaves fully dry, prevent that tealeaves is mouldy and rotten due to oxidation, guarantee original flavor and the quality of tealeaves, extend its shelf life, powdery tea moisture-proof deoxidizing antistaling agent is applicable to be placed in the small package packaging container of tealeaves.
[application number] CN201210041667.7[title] compound bentonite composition and preparation method thereof [applicant] Qingdao Lv Man bioengineering Co., Ltd of reducing harmful gas in livestock house, a kind of compound bentonite composition that reduces harmful gas in livestock house is disclosed, by following component by weight mixed preparing form: zeolite 20-55 part, bentonite 20-55 part, sulphur 10-25 part, copper sulphate 15-40 part, quick lime 10-20 part.The invention has the beneficial effects as follows: reasonable recipe, preparation is simple, and said composition has no side effect, pollution-free, drug residue free, have no drug resistance, and grinding particle size is little, bioavilability is high, curative effect highly significant, clinical proof has special efficacy to effective reduction harmful gas in livestock house.
[application number] CN02137547.X[title] a kind of production method [applicant] Shanghai JingLong chemical engineering Co., Ltd that manufactures ball-type montmorillonite active drying agent, a kind of production method of manufacturing ball-type montmorillonite active drying agent is disclosed, wherein, described production method is the stirring that first ca-montmorillonite ore is hydrolyzed in cartridge type knockout drum, make its suspension layering, then bleed off the floating upper and impurity of upper strata lightweight, extract the ca-montmorillonite powder in intermediate layer, finally bleed off gravel and the Silica grain of deposition, the ca-montmorillonite powder slurry that intermediate layer is extracted dries, dry.After pulverizing, be the ca-montmorillonite powder of ball-type montmorillonite active drying agent, then select na-montmorillonite powder to adopt above-mentioned same step to manufacture the na-montmorillonite powder of ball-type montmorillonite active drying agent, finally ca-montmorillonite powder and na-montmorillonite powder are mixed, mixed thoroughly, then carry out granulation, obtain ball-type montmorillonite active drying agent of the present invention.The ball-type montmorillonite active drying agent that the present invention obtains, shedding rate is lower, and generally, below one thousandth, more than its compression strength is generally 160N/mm2, smooth outer surface, and chance water degradable, without ℃ poison, harmless, non-corrosiveness.
Above innovation and creation have all utilized this characteristic of montmorillonite superabsorbency, but montmorillonite is very severe, are not suitable for the meticulous packing of some limited spaces; Next existing montmorillonite drier has simple drying property and can not prevent protected object oxidation deterioration.
The water-retaining property of many non-bentonite drier, stability are not very desirable, after water suction, easily there is the phenomenon of heat release, expansion, therefore particularly do not meet medicines and health protection, biological reagent, the high standard requirement of food service industry to drier, need to develop some health, efficient, exquisiteness, environmental protection, stable drier more.
Summary of the invention
The present invention is directed to the problem that existing deoxidation drying agent cost is high, function is few, the effect phase is short, long, the strong deoxidation drying agent of coupling deoxidation drying capacity of a kind of cheap, effect phase is provided, and corresponding preparation method is provided.
Concrete, technical scheme of the present invention is achieved in that
A deoxidation drying agent, comprises following component: bentonite, attapulgite, bamboo charcoal powder and smart iron powder.
Bentonitic main component montmorillonite surface band negative electrical charge, makes whole particle surface have an electrostatic field, therefore must impel the hydrone of its dipolar nature to be and align.On silicon-oxy tetrahedron lattice surface, exposed oxygen unit can form hydrogen bond with the HO base of hydrone, near the hydrone of montmorillonite circumferential surface just the first sub-phase key of oxygen by hydrogen bond and silicon-oxy tetrahedron with, particle surface electrostatic field is larger, wettability power is also higher.But the superpower imbibition of bentonite water imbibition is very serious, need another additive to control expansion, lucky attapulgite has high-hydroscopicity and imbibition is very little, and bentonite is major ingredient and adds attapulgite mediation can guarantee that high-efficiency water-absorbing can effectively suppress imbibition again again.
At bentonite and attapulgite the inside, mix bamboo charcoal powder, because bamboo charcoal powder has loose structure, form a large amount of Minitype negative pressure pipes, can adsorb and eliminate harmful peculiar smell in packaging bag, and pin the moisture in bentonite.
Essence iron powder has reproducibility, but only just can better react with oxygen having under the condition of water, and the adding of stephanoporate bamboo charcoal powder not only solve water and carried out source problem, and provide charcoal anodal, due to: 4Fe+3O
2=2Fe
2o
3, Fe
2o
3+ 3H
2o=2Fe (OH)
3completing of these two reaction equations need to form small chemical primary cell.The bamboo charcoal powder anodal iron powder that still xeraphium, NMF can also not serve as galvanic cell is negative pole, negative reaction: 2Fe-4e-=2Fe
2+; Anodal reaction: 2H
2o+O
2+ 4e-=4OH-, after coupling, the deoxidizing capacity of smart iron powder significantly strengthens.
The present invention is with cheap raw materials such as bentonite, attapulgite, bamboo charcoal powder, smart iron powders, prepare the high-performance bentonite drier that has both dry and deoxidation dual-use function, solved the problem that conventional dry drying prescription cost is high, function is few, the effect phase is short, not only increased the new function of deoxidation of bentonite drier, also reduced raw-material cost simultaneously and drop into.
As of the present invention, further illustrate, also comprise refined manganese dioxide, quick lime, calcium chloride and calcium propionate.
Further, described quick lime be bagasse drying, pulverize, sieve preparation and obtain.
Further, described refined manganese dioxide is MnO
2powder.
In drier, add refined manganese dioxide, can make dry goods shelf-life under hypoxia longer, and without any pollution, product 100% degraded; Simultaneously high cation replacement effect between manganese and mineral, can improve the antistatic effect of the thing that is dried greatly, removes peculiar smell effective.Add quick lime, calcium chloride and calcium propionate, greatly improve the water absorbing capacity of deoxidation drying agent of the present invention.And the quick lime that adopts bagasse to make is raw material, can serve as the carrier of drier, there is again the advantage that cost is low.
Deoxidation drying agent of the present invention comprises the component of following parts by weight: 10～60 parts of bentonites, 10～40 parts of attapulgites, 1～20 part of bamboo charcoal powder, 1～20 part of smart iron powder, 1～10 part of refined manganese dioxide, 1～10 part of quick lime, calcium chloride 0.01-1 part and calcium propionate 0.01-1 part.
The preparation method of deoxidation drying agent of the present invention, comprises following concrete steps:
(1) bentonite and attapulgite raw ore are carried out to pulverization process, cross 50 mesh sieves, obtain mineral dust;
(2), by mineral dust and water mix and blend 1-5h, overflow suspends and filters out high-quality bentonite emulsion;
(3) emulsion is calcined after 0.5～1h through press filtration, 200-500 ℃, grind into powder is standby;
(4) powder step (3) being prepared mixes with bamboo charcoal powder, smart iron powder;
(5) oven dry under vacuum condition, cooling, packing, get product.
As further illustrating of such scheme, in step (4), the powder that step (3) is prepared mixes with bamboo charcoal powder, smart iron powder, refined manganese dioxide, quick lime, calcium chloride and calcium propionate.
Further, in the mineral dust that step (1) is prepared into, bentonitic smectite content reaches 80%～90%.
Technique of the present invention is passed through bentonite, attapulgite mineral dust is in row whipping process, with certain senior middle school shearing force, its suspension Minerals particle is fully disperseed, with hydroclone classification, become particle little, but the overflow mud that specific area is large, again through pressure-filteration drying operation, greatly improved bentonite, structure hole warp between attapulgite internal fiber, in this type is purified bentonite after calcining and attapulgite structure, parallel fibers duct accounts for fiber always long-pending 60%, outer surface, inner surface has stronger absorption property, substantially exceed any other mineral, be positioned at the cation Na+ of passage and Ga2+ etc. and Si-Al backbone contact power a little less than, easily other cation replacements and do not destroy lattice, play again the filtration of special duct simultaneously, greatly improve be dried the antipollution power of article and the resistance of going mouldy, cation replacement effect between while and manganese, greatly improved again the antistatic effect of the thing that is dried.
Deoxidation drying agent of the present invention can be widely used in the fields such as medicines and health protection product, instrument and equipment, food and feeds industry, superpower adsorptivity and water imbibition in conjunction with each component of deoxidation drying agent, moisture and the unnecessary oxygen that can adsorb be dried thing and environment thereof, get deoxidation, dry effect, extend the holding time of the thing that is dried.Meanwhile, the adding of bamboo charcoal powder, solve the defect that conventional iron dried bean noodles drying prescription needs competence exertion effect under water environment, avoided the side effects to drier that adds of water.Secondly, the bentonite deoxidation after coupling, drying property have promoted greatly, better to heavy metal, adsorbing and removing effect harmful or gas with foreign flavor, bacterium etc., play comprehensive deoxidation, dry effect.
Deoxidation drying agent raw materials of the present invention is cheap and easy to get, and preparation technology is simple, and product possesses multiple remove, and the effect phase is long. and there are very wide market prospects, be suitable for large-scale promotion and practice.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to the scope that embodiment represents.
A deoxidation drying agent, comprises following component: bentonite, attapulgite, bamboo charcoal powder and smart iron powder.
Wherein, also comprise refined manganese dioxide, quick lime, calcium chloride and calcium propionate.
As the further restriction of such scheme, described quick lime is bagasse drying, pulverize, sieve preparation and obtain.
Further, described refined manganese dioxide is MnO
2powder.
Further limit, deoxidation drying agent of the present invention comprises the component of following parts by weight: 10～60 parts of bentonites, 10～40 parts of attapulgites, 1～20 part of bamboo charcoal powder, 1～20 part of smart iron powder, 1～10 part of refined manganese dioxide, 1～10 part of quick lime, calcium chloride 0.01-1 part and calcium propionate 0.01-1 part.
The concrete preparation method of deoxidation drying agent of the present invention is: bentonite origin breeze is broken, and through 50 object screenings, wind-force is delivered to pulp equipment, stirs and is added hydraulic suspension device after 1～5 hour again, by overflow suspension, filters out high-quality bentonite emulsion, enter filtering equipment and form bar, and use slicer dicing, low-temperature bake (200～500 ℃) then, roasting 0.5～1 hour, the montmorillonite of now purifying can reach 80%～90%, is ground into powder standby.Attapulgite can be with same Methods For Purification powdered, and technique is changed slightly by different in kind; Also can be mixed together and pulverize rear preparation with bentonite ore.By the bentonite preparing and attapulgite mineral dust, bamboo charcoal powder, smart iron powder; suitably add refined manganese dioxide, quick lime, calcium chloride and calcium propionate by specifying proportioning to mix granulation; under vacuum condition, dry also cooling; to guarantee product quality; last according to the weight requirement of different industries, bagging and packaging under vacuum.
Embodiment 1
Formula: 0.03 part of 45 parts of bentonites, 15 parts of attapulgites, 10 parts of bamboo charcoal powder, 5 parts of smart iron powders, 0.03 part, calcium chloride and calcium propionate.
Preparation method, comprises the following steps:
Bentonite and attapulgite raw ore are pulverized, and through 50 object screenings, wind-force is delivered to pulp equipment, stir and added again hydraulic suspension device after 3 hours, by overflow suspension, filter out high-quality bentonite emulsion, enter filtering equipment and form bar, and use slicer dicing, then low-temperature bake (250 ℃), roasting 1 hour, is ground into powder standby.The bentonite preparing and attapulgite mineral dust, bamboo charcoal powder, smart iron powder, calcium chloride and calcium propionate are mixed to granulation by said ratio, oven dry cooling under vacuum condition, bagging and packaging under vacuum.
The deoxidation drying agent indices of gained is as follows:
| Test event | Measurement result |
| Smell | Without smell |
| Outward appearance | Package formation, heat-sealing is tight, without tearing |
| Inhale blue amount | 36g/100g |
| Impurity | Surface of package is without Visible pollutant |
| Total oxygen absorbed | 3.6 times of standard oxygen absorbeds (mL/ bag) |
| Deaeration time | 42h |
| Packaging film aperture | 80μm |
| Plumbous (in Pb) | 8mg/kg |
| Total arsenic (in As) | 4.55mg/kg |
| Total plate count | 300CFU/cm 2 |
| Escherichia coli | 29MPN/100cm 2 |
Embodiment 2
Formula: 0.5 part of 30 parts of bentonites, 25 parts of attapulgites, 5 parts of bamboo charcoal powder, 5 parts of smart iron powders, 3 parts of refined manganese dioxides, 5 parts of quick limes, 0.3 part, calcium chloride and calcium propionate.
Bentonite and attapulgite raw ore are pulverized, and through 50 object screenings, wind-force is delivered to pulp equipment, stir and added again hydraulic suspension device after 4 hours, by overflow suspension, filter out high-quality bentonite emulsion, enter filtering equipment and form bar, and use slicer dicing, then low-temperature bake is 350 ℃), roasting 1 hour, is ground into powder standby.The bentonite preparing and attapulgite mineral dust, bamboo charcoal powder, smart iron powder, calcium chloride and calcium propionate are mixed to granulation by said ratio, oven dry cooling under vacuum condition, bagging and packaging under vacuum.
The deoxidation drying agent indices of gained is as follows:
| Test event | Measurement result |
| Smell | Without smell |
| Outward appearance | Package formation, heat-sealing is tight, without tearing |
| Inhale blue amount | 36g/100g |
| Impurity | Surface of package is without Visible pollutant |
| Total oxygen absorbed | 3.3 times of standard oxygen absorbeds (mL/ bag) |
| Deaeration time | 40h |
| Packaging film aperture | 78μm |
| Plumbous (in Pb) | 7.6mg/kg |
| Total arsenic (in As) | 4.8mg/kg |
| Total plate count | 280CFU/cm 2 |
| Escherichia coli | 30MPN/100cm 2 |
Embodiment 3
Formula: 0.5 part of 50 parts of bentonites, 15 parts of attapulgites, 10 parts of bamboo charcoal powder, 10 parts of smart iron powders, 5 parts of refined manganese dioxides, 5 parts of quick limes, 0.5 part, calcium chloride and calcium propionate.
Bentonite and attapulgite raw ore are pulverized, and through 50 object screenings, wind-force is delivered to pulp equipment, stir and added again hydraulic suspension device after 4 hours, by overflow suspension, filter out high-quality bentonite emulsion, enter filtering equipment and form bar, and use slicer dicing, then low-temperature bake is 350 ℃), roasting 1 hour, is ground into powder standby.The bentonite preparing and attapulgite mineral dust, bamboo charcoal powder, smart iron powder, calcium chloride and calcium propionate are mixed to granulation by said ratio, oven dry cooling under vacuum condition, bagging and packaging under vacuum.
The deoxidation drying agent indices of gained is as follows:
| Test event | Measurement result |
| Smell | Without smell |
| Outward appearance | Package formation, heat-sealing is tight, without tearing |
| Inhale blue amount | 36g/100g |
| Impurity | Surface of package is without Visible pollutant |
| Total oxygen absorbed | 3.9 times of standard oxygen absorbeds (mL/ bag) |
| Deaeration time | 45h |
| Packaging film aperture | 80μm |
| Plumbous (in Pb) | 7mg/kg |
| Total arsenic (in As) | 5.2mg/kg |
| Total plate count | 290CFU/cm 2 |
| Escherichia coli | 27MPN/100cm 2 |
Claims (8)
1. a deoxidation drying agent, is characterized in that, comprises following component: bentonite, attapulgite, bamboo charcoal powder and smart iron powder.
2. deoxidation drying agent according to claim 1, is characterized in that, also comprises refined manganese dioxide, quick lime, calcium chloride and calcium propionate.
3. according to the arbitrary described deoxidation drying agent of claim 1 or 2, it is characterized in that, described quick lime is bagasse drying, pulverize, sieve preparation and obtain.
4. deoxidation drying agent according to claim 3, is characterized in that, described refined manganese dioxide is MnO
2powder.
5. according to claim 1,2 or 4 arbitrary described deoxidation drying agents, it is characterized in that, comprise the component of following parts by weight: 10～60 parts of bentonites, 10～40 parts of attapulgites, 1～20 part of bamboo charcoal powder, 1～20 part of smart iron powder, 1～10 part of refined manganese dioxide, 1～10 part of quick lime, calcium chloride 0.01-1 part and calcium propionate 0.01-1 part.
6. as described in as arbitrary in claim 1-5, the preparation method of deoxidation drying agent, is characterized in that, comprises following concrete steps:
(1) bentonite and attapulgite raw ore are carried out to pulverization process, cross 50 mesh sieves, obtain mineral dust;
(2), by mineral dust and water mix and blend 1-5h, overflow suspends and filters out high-quality bentonite emulsion;
(3) emulsion is calcined after 0.5～1h through press filtration, 200-500 ℃, grind into powder is standby;
(4) powder step (3) being prepared mixes with bamboo charcoal powder, smart iron powder;
(5) oven dry under vacuum condition, cooling, packing, get product.
7. the preparation method of deoxidation drying agent according to claim 6, is characterized in that, in step (4), the powder that step (3) is prepared mixes with bamboo charcoal powder, smart iron powder, refined manganese dioxide, quick lime, calcium chloride and calcium propionate.
8. the preparation method of deoxidation drying agent according to claim 7, is characterized in that, in the mineral dust that described step (1) is prepared into, bentonitic smectite content reaches 80%～90%.
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