CN102775959A - Novel environment-friendly snow-melting agent and preparation method thereof - Google Patents
Novel environment-friendly snow-melting agent and preparation method thereof Download PDFInfo
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- CN102775959A CN102775959A CN2012102456058A CN201210245605A CN102775959A CN 102775959 A CN102775959 A CN 102775959A CN 2012102456058 A CN2012102456058 A CN 2012102456058A CN 201210245605 A CN201210245605 A CN 201210245605A CN 102775959 A CN102775959 A CN 102775959A
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Abstract
The invention discloses a low-cost environment-friendly snow-melting agent, and a preparation method and an application of the low-cost environment-friendly snow-melting agent. The low-cost environment-friendly snow-melting agent is prepared by mixing 85 to 95% of low-cost CMA, 2 to 10% of potassium acetate, 1 to 8% of sodium dihydrogen phosphate, and 0 to 3% of polyphosphoric acid. The environment-friendly snow-melting agent is low in cost, has no corrosion, and is harmless to soil. The low-cost CMA is the low-cost CMA granular product which is manufactured by mixing calcium magnesium acetate which is produced by the reaction between a biologically fermented by-product emulsion produced by producing cheese through milk and served as the raw material and calcium-magnesium oxide and the calcium magnesium acetate produced by the reaction between glacial acetic acid and dolomite (Ca/MgO) or limestone (Ca/MgCO3) based on a certain ratio; the potassium acetate can increase the snow-melting frequency, and the potassium can improve the fertility of the soil; the sodium dihydrogen phosphate served as the neutralizer can ensure that the pH value of an aqueous solution prepared by mixing is 7; and with the polyphosphoric acid serving as the preservative, the prepared snow-melting agent has low corrosion or has no corrosion.
Description
Technical field
The present invention relates to a kind of is the environment-friendly snowmelt agent of staple with CMA (calcium acetate magnesium salt), contains multiple additives.
Background technology
The prior art Snow Agent mainly is that employing sodium-chlor is main raw material.Though reached the purpose of snow removing, corrodibility is big, not only can cause the heavy corrosion to highway, bridge, motor vehicle and traffic route; Reduce work-ing life; And cause damage for the flowers, plants and trees of highway both sides, and cause salinization to soil, cause environmental pollution.
For reaching the environmental protection purpose some improvement technology are arranged also; As the disclosed Snow Agent of CN200610046356 patented claim be with at least two kinds in nitrocalcite, calcium chloride, magnesium chloride, sodium-chlor, five kinds of raw materials of Losantin with Starso, Sodium orthomolybdate, tsp, Sodium Benzoate, borax, Sodium Nitrite, Efficacious Disinfeitant, azimidobenzene at least the 1-2 kind constitute; But major ingredient or villaumite, the value of environmental protection are not outstanding.The present invention originally is to be the environment-friendly snowmelt agent of staple with CMA (calcium acetate magnesium salt), contains multiple additives, compares with sodium-chlor, and CMA has better water solubility, and fusing point is lower, and acetic acid is biodegradable.Through experimental verification, CMA is a kind of environmental-protecting chemical article.
CMA uses rhombspar (Ca/MgO) or ls (Ca/MgCO3) to make through reaction with Glacial acetic acid min. 99.5 usually.Compare with sodium-chlor, price differs greatly.At the beginning of the nineties, the Snow Agent price that contains 91%CMA is 66 cents/kg, and rock salt (sodium-chlor) is merely 212～214 cents/kg.Although some investigators think that when calculating into its cost to the influence of environment sodium-chlor, both prices are suitable, CMA still is difficult to generally accepted by the people as Snow Agent, can only be used for the strict area of environment control.Analyze the formation of CMA and can find that wherein acetic acid is the principal element that influences the CMA price, using cheap acetic acid is the key that reduces its cost.
Summary of the invention
The purpose of this invention is to provide a kind of cheapness, non-corrosiveness, the environment-friendly snowmelt agent harmless to soil.
The best-of-breed technology scheme that the cheap environment-friendly snowmelt agent of preparation the present invention is adopted is to be processed by following raw material and weight percentage ratio thereof:
Said each component sum is 100%.
Above-mentioned cheap CMA is for being raw material with the by product emulsion in the milk-producing cheese process through behind the biological fermentation and the calcium acetate magnesium salt that generates of calcium magnesium oxide reaction and the granular article of cheap CMA that are mixed and made into by a certain percentage with the calcium acetate magnesium salt of the generation of the reaction between Glacial acetic acid min. 99.5 and rhombspar (Ca/MgO) or the ls (Ca/MgCO3); Potassium ethanoate is accelerated snow melt efficient, and contained potassium can increase the fertility of soil; SODIUM PHOSPHATE, MONOBASIC be neutralizing agent guarantee institute mixed must solution ph be 7; Sodium polyphosphate is a sanitas, guarantees that prepared Snow Agent has low corrosion or non-corrosiveness.
The present invention also provides a kind of new Snow Agent method of use, it is characterized in that need not preparing in advance the Snow Agent finished product, but cheap CMA and various additive is placed apart, and is compound at building-site again before needing to use.Concrete steps are: the cheap CMA that said ratio is provided; Other component except that cheap CMA of said ratio is provided, and mixes; The cheap CMA particle of mechanical dispersion is sprayed at the form of mixed additive with the aqueous solution on the cheap CMA particle simultaneously, forms the composite particles of Snow Agent; Composite particles is directly used.This method can be avoided problems such as the finished product Snow Agent occurs making moist, harden in storing and transporting; Also can avoid the preparation composite particles (as; Coating pelletizing) power consumption of the high temperature in the process and the defective that possibly cause additives decompose; This method is simple to operate, and is with low cost, is particularly suited for on-the-spot mechanize and sheds operation.
With milk is in the process of raw material production cheese, and by product is BOD up to 40000 emulsion, wherein contains 5% lactose, 1% protein, 1% salt and 0.1%～0.8% lactic acid.Emulsion is not directly discharged, and needs further to handle.Generally, adopt osmosis at first to remove most of solids component, utilize remaining whey to produce other chemical then.Concrete result sees table 1.Can find out, but utilize emulsion to produce can yet be regarded as a kind of not only utilization of waste material but also can produce the good approach of green chemical of CMA.The technology of being produced CMA by emulsion is at first to be raw material with the emulsion, adopts the lactobacillus strain fermenting lactic acid, and then utilizes the acetic acid bacterial strain that lactobacillus ferment is generated acetic acid.After this, utilize chemical extraction method to extract acetic acid, wherein extraction agent can adopt secondary amine or tertiary amine.In the solvent reclamation process, make reverse-extraction agent with calcium magnesium oxide or calcium carbonate and magnesium carbonate, the back extraction resultant is CMA.
Table 1 is other products of raw material production with the 45400kg emulsion
Embodiment
Below in conjunction with specific embodiment the present invention is explained further details.
Embodiment 1
1, through the first finished product of the cheap CMA of the reacted between Glacial acetic acid min. 99.5 and rhombspar (Ca/MgO) or the ls (Ca/MgCO3).Adopt active strong hydration rhombspar [Ca (OH) 2/Mg (OH) 2], guarantee n (Mg)/n (Ca)=7/3, and excessive 2%, guarantee certain pH value, to reach the optimum response effect.Contain 10%～35% generation water in the product, head product contains excessive acid or alkali toward contact, and using SODIUM PHOSPHATE, MONOBASIC again or using primary ammonium phosphate regulator solution PH is 7.
2, be raw material with the by product emulsion in the milk-producing cheese process, remove most of solids component through infiltration.The whey of gained is carried out circulating fermentation in the fixed cell bio-reactor; Cell density 30g/L in the fermented liquid; Controlled temperature is produced lactic acid with the S.lactis lactobacillus strain to whey fermentation at 37 ℃, and then utilizes C.formicoaceticum acetic acid bacterial strain that lactobacillus ferment is generated acetic acid.Controlled temperature utilizes secondary amine or tertiary amine to extract acetic acid at 75-85 ℃ again, makes reverse-extraction agent with calcium magnesium oxide or calcium carbonate and magnesium carbonate, and the back extraction resultant is CMA.This technological process also can adopt reaction and separate the coupled mode, and promptly the extractive fermentation method improves transformation efficiency and productive rate.The yield of lactic acid and acetic fermentation is respectively 98.8% and 96.7% in the process, and the total recovery of acetic acid can reach 95%.The CMA that is gathered (1) generation the step mixes by 1: 4 with this product, and adopts fluid-bed drying production to obtain the granular finished product of cheap CMA.
3, preparation Snow Agent: with 5% Potassium ethanoate, 2% SODIUM PHOSPHATE, MONOBASIC, 1% sodium polyphosphate mix and are sprayed on the 90% cheap particle with the form of the aqueous solution, mix the composite particles that obtains Snow Agent.
Embodiment 2
1, MgO and excessive acetic acid reaction are generated magnesium acetate and acetic acid mixing solutions, with obtaining CMA with unreacted acetic acid in the hydration Wingdale, in the reaction process, guarantee n (Mg)/n (Ca)=7/3 again.CMA becomes n (Mg)/n (Ca)=7/3 as the best group of Snow Agent, and this composition is near the lowest total of the melting point (37) of two kinds of acetate, and thermal capacity is high, in drying process, is difficult in the time of 100 ℃ decomposing.Compare with equimolar CMA composition, less scaling on concrete.
2, be raw material with the by product emulsion in the milk-producing cheese process, remove most of solids component through infiltration.The whey of gained is carried out circulating fermentation in the fixed cell bio-reactor; Cell density 30g/L in the fermented liquid; Controlled temperature is produced lactic acid with the S.lactis lactobacillus strain to whey fermentation at 37 ℃, and then utilizes C.formicoaceticum acetic acid bacterial strain that lactobacillus ferment is generated acetic acid.Controlled temperature utilizes secondary amine or tertiary amine to extract acetic acid at 75-85 ℃ again, makes reverse-extraction agent with calcium magnesium oxide or calcium carbonate and magnesium carbonate, and the back extraction resultant is CMA.This technological process also can adopt reaction and separate the coupled mode, and promptly the extractive fermentation method improves transformation efficiency and productive rate.The yield of lactic acid and acetic fermentation is respectively 98.8% and 96.7% in the process, and the total recovery of acetic acid can reach 95%.The CMA that is gathered (1) generation the step mixes by 1: 3 with this product, and adopts fluid-bed drying production to obtain the granular finished product of cheap CMA.
3, preparation Snow Agent: with 3% Potassium ethanoate, 1% SODIUM PHOSPHATE, MONOBASIC, 1% sodium polyphosphate mix and are sprayed on the 95% cheap particle with the form of the aqueous solution, mix the composite particles that obtains Snow Agent.
Embodiment 3
1, is raw material with the by product emulsion in the milk-producing cheese process, removes most of solids component through infiltration.The whey of gained is carried out circulating fermentation in the fixed cell bio-reactor; Cell density 30g/L in the fermented liquid; Controlled temperature is produced lactic acid with the S.lactis lactobacillus strain to whey fermentation at 37 ℃, and then utilizes C.formicoaceticum acetic acid bacterial strain that lactobacillus ferment is generated acetic acid.Controlled temperature utilizes secondary amine or tertiary amine to extract acetic acid at 75-85 ℃ again, makes reverse-extraction agent with calcium magnesium oxide or calcium carbonate and magnesium carbonate, and the back extraction resultant is CMA.This technological process also can adopt reaction and separate the coupled mode, and promptly the extractive fermentation method improves transformation efficiency and productive rate.The yield of lactic acid and acetic fermentation is respectively 98.8% and 96.7% in the process, and the total recovery of acetic acid can reach 95%.The CMA that embodiment 1 step 1 is generated mixes by 1: 2 with this product, and adopts fluid-bed drying production to obtain the granular finished product of cheap CMA.
2, preparation Snow Agent: with 3% Potassium ethanoate, 1% SODIUM PHOSPHATE, MONOBASIC, 1% sodium polyphosphate mix and are sprayed on the 95% cheap particle with the form of the aqueous solution, mix the composite particles that obtains Snow Agent.
Above embodiment combines concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of inventing type.
Claims (6)
1. cheap environment-friendly snowmelt agent comprises component and content (weight percentage):
Said each component sum is 100%.
2. cheap environment-friendly snowmelt agent is characterized in that: described cheap CMA is for being raw material with the by product emulsion in the milk-producing cheese process through behind the biological fermentation and the calcium acetate magnesium salt that generates of calcium magnesium oxide reaction and the granular article of cheap CMA that are mixed and made into by a certain percentage with the calcium acetate magnesium salt of the generation of the reaction between Glacial acetic acid min. 99.5 and rhombspar (Ca/MgO) or the ls (Ca/MgCO3).
3. cheap environment-friendly snowmelt agent is characterized in that: described Potassium ethanoate is accelerated snow melt efficient, and contained potassium can increase the fertility of soil.
4. cheap environment-friendly snowmelt agent is characterized in that: described SODIUM PHOSPHATE, MONOBASIC be neutralizing agent guarantee institute mixed must solution ph be 7.
5. cheap environment-friendly snowmelt agent is characterized in that: described sodium polyphosphate is a sanitas, guarantees that prepared Snow Agent has low corrosion or non-corrosiveness.
6. the present invention also provides a kind of new Snow Agent method of use, it is characterized in that need not preparing in advance the Snow Agent finished product, but cheap CMA and various additive is placed apart, and is compound at building-site again before needing to use.Concrete steps are: the cheap CMA that said ratio is provided; Other component except that cheap CMA of said ratio is provided, and mixes; The cheap CMA particle of mechanical dispersion is sprayed at the form of mixed additive with the aqueous solution on the cheap CMA particle simultaneously, forms the composite particles of Snow Agent; Composite particles is directly used.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567163A (en) * | 2016-01-13 | 2016-05-11 | 田丹 | Preparation method of environment-friendly snow melting agent |
| CN108165235A (en) * | 2018-01-22 | 2018-06-15 | 陕西杨凌陕特农业发展有限公司 | A kind of deicing salt prepared using bee honey residue fermentation and preparation method thereof |
| CN108395878A (en) * | 2018-02-13 | 2018-08-14 | 沈阳工业大学 | A kind of dedicated efficient green deicing salt in airport |
| CN113201311A (en) * | 2021-05-14 | 2021-08-03 | 辽宁石油化工大学 | Organic environment-friendly snow removing agent and preparation method and application method thereof |
| CN114806504A (en) * | 2022-04-19 | 2022-07-29 | 华能伊敏煤电有限责任公司 | Anti-freezing adhesive preparation for outdoor conveying adhesive tape in alpine region and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108395878B (en) * | 2018-02-13 | 2020-07-31 | 沈阳工业大学 | Efficient green snow-melting agent special for airport |
| CN113201311A (en) * | 2021-05-14 | 2021-08-03 | 辽宁石油化工大学 | Organic environment-friendly snow removing agent and preparation method and application method thereof |
| CN114806504A (en) * | 2022-04-19 | 2022-07-29 | 华能伊敏煤电有限责任公司 | Anti-freezing adhesive preparation for outdoor conveying adhesive tape in alpine region and preparation method thereof |
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Application publication date: 20121114 |