CN101921577A - Organic composite snow-melting agent and preparation method thereof - Google Patents
Organic composite snow-melting agent and preparation method thereof Download PDFInfo
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- CN101921577A CN101921577A CN 201010274384 CN201010274384A CN101921577A CN 101921577 A CN101921577 A CN 101921577A CN 201010274384 CN201010274384 CN 201010274384 CN 201010274384 A CN201010274384 A CN 201010274384A CN 101921577 A CN101921577 A CN 101921577A
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Abstract
The invention relates to an organic composite snow-melting agent and a preparation method thereof. The organic composite snow-melting agent is characterized by being prepared from the following raw materials in parts by weight: 0.5-5 parts of glycol, 0.1-5 parts of snow-melting accelerating agent and 30-50 parts of water, wherein the snow-melting accelerating agent is phycocyanin or fucoidin. In the invention, by adding the snow-melting accelerating agent to solution containing the glycol, the snow-melting effect is strengthened. Compared with the traditional snow-melting agent prepared from the glycol, the organic composite snow-melting agent of the invention obtained by adding the snow-melting accelerating agent can reduce glycol content to reach the same snow-melting effect, thereby greatly saving production cost. Meanwhile, the organic composite snow-melting agent of the invention has better low-temperature frost resistance, smaller corrosivity, limited harm to plants and environmental protection.
Description
Technical field
The present invention relates to a kind of organic composite snow-melting agent and preparation method thereof.
Background technology
In the north, the snow removing in winter is the important process that guarantees The coast is clear and safety.The snow melt deicing measure that is used for ground such as motorway, airfield runway at present mainly contains snow removal with machine, manually snow removing and Snow Agent snow removing.Snow removal with machine is because large-scale snow removing equipment comparatively lacks, and snow removing speed and efficient are lower.During artificial the snow removing, have security incident often and take place, and intensive artificial snow removing can influence traffic circulation speed.Therefore, various countries are in the face of snow day more options save time, laborsaving and Snow Agent snow removing mode that sudden hurt accident is reduced.
Snow Agent also claims deicer salts (deicing salt), is used for reducing the zero pour of ice and snow and then reaches the purpose that thaws ice and snow.In existing application, the kind of Snow Agent mainly contains chloride salt, calcium magnesium acetate salt (CMA) and organic alcohols etc.The chloride salt Snow Agent, its deicing or snow melting is simple and practical, but Architectural Equipments such as meeting road pavement, bridge cause serious structural destruction, and soil, water source etc. is polluted.Calcium magnesium acetate salt Snow Agent is a kind of Snow Agent of environment-friendly type, need use a large amount of Glacial acetic acid during still owing to preparation, compares with aforesaid chloride salt Snow Agent, and technology is complicated, so it still is difficult to generally be accepted as Snow Agent.
Organic alcohols, as ethylene glycol, its snow melt effect is better, and corrodibility is less, and is limited to the harm of plant, is widely used in airstrip, air-conditioning, oil engine refrigeration system etc. at present as deicing agent and antifreezing agent.The snow melt effect of ethylene glycol Snow Agent strengthens along with the rising of ethylene glycol content.But ethylene glycol content is high more, and its cost that uses as Snow Agent can improve greatly.
Summary of the invention
The purpose of this invention is to provide that a kind of snow melt is effective, lower-cost organic composite snow-melting agent and preparation method thereof.
For achieving the above object, the technical solution used in the present invention is: organic composite snow-melting agent, it forms by comprising ethylene glycol, snow melt promotor and water feedstock production, and the shared parts by weight of each raw material are: 0.5～5 part of ethylene glycol, 0.1～5 part of snow melt promotor, 30～50 parts in water.
Described snow melt promotor is Phycocyanins, C-or polysaccharides.
Described raw material also includes nonionogenic tenside, and the shared parts by weight of described nonionogenic tenside are: 0.1～5 part.
The shared parts by weight of described nonionogenic tenside are: 1 part.
Described nonionogenic tenside is a coconut oil diethanol amide.
Described each raw materials in part by weight is: 5 parts of ethylene glycol, 1 part of snow melt promotor, 40 parts in water.
Described nonionogenic tenside is a coconut oil diethanol amide.
The preparation method of above-mentioned organic composite snow-melting agent, it may further comprise the steps:
1) by the shared parts by weight of each raw material be: 0.5～5 part of ethylene glycol, 0.1～5 part of snow melt promotor, 30～50 parts in water, choose ethylene glycol, snow melt promotor and water, standby;
2) ethylene glycol, snow melt promotor and water are at room temperature mixed and stir, obtain organic composite snow-melting agent.
The invention has the beneficial effects as follows:
1, compared to prior art, add snow melt promotor to the aqueous solution that contains ethylene glycol, the snow melt effect is enhanced, this compares with regard to meaning the Snow Agent made from traditional ethylene glycol, can reduce glycol content by interpolation snow melt promotor and reach same snow melt effect, save production cost greatly.
2, organic composite snow-melting agent of the present invention possesses the good low-temperature anti-freezing property, can take to avenge preceding sprinkling, the snow melt mode that fills spray behind the snow.
3, organic composite snow-melting agent of the present invention has solvability preferably, and is easy to use, can spray evenly, and corrodibility is less, limited to the harm of plant, relatively environmental protection.
Therefore, this type of organic composite snow-melting agent has not only brought new thinking for deicing or snow melting, also provides new way for comprehensive regulation blue-green algae (main nutrient matter is Phycocyanins, C-and polysaccharides), and its popularization has realistic meaning preferably.
Embodiment
For a better understanding of the present invention, further illustrate content of the present invention, but content of the present invention not only is confined to the following examples below in conjunction with embodiment.
Embodiment 1
Organic composite snow-melting agent, it is prepared from by ethylene glycol, coconut oil diethanol amide, Phycocyanins, C-and distilled water, and each raw materials in part by weight sees Table 1.
Table 1
| Ethylene glycol | 5 parts |
| Coconut oil diethanol amide | 1 part |
| Phycocyanins, C- | 1 part |
| Distilled water | 40 parts |
The preparation method's of above-mentioned organic composite snow-melting agent step is: with 5 parts of ethylene glycol, and 1 part of coconut oil diethanol amide, 1 part of Phycocyanins, C-, and distilled water is positioned in the container for 40 parts; At room temperature, stirring fully dissolves its component, promptly obtains above-mentioned organic composite snow-melting agent.
The experimental result of resulting organic composite snow-melting agent is referring to table 12.
In the present embodiment, the extraction step of described Phycocyanins, C-is:
Choose weight ratio and be (90～110): (0.01～0.03): (8～10): the spirulina powder of (500～700), Sodium dodecylbenzene sulfonate, SODIUMNITRATE and distilled water, spirulina powder, Sodium dodecylbenzene sulfonate and SODIUMNITRATE are mixed, and adding distil water dilution and fully stir and make its dissolving and mix, stirred 3-4 days down at 17 ℃～25 ℃, obtain soak solution, preferred 17 ℃; The concentration of Sodium dodecylbenzene sulfonate is 1 * 10
-4Mol/L～10 * 10
-4Mol/L, the concentration of SODIUMNITRATE is 10g/L～20g/L.In the present embodiment, the weight ratio of spirulina powder, Sodium dodecylbenzene sulfonate, SODIUMNITRATE and distilled water is 100: 0.03: 9: 600;
Centrifugal above-mentioned soak solution, parameter of noncentricity setting: 4000r/min, 30min.Obtain the supernatant liquor of centrifugal gained after the centrifugal end, this supernatant liquor is a blue liquid, and the surface can be observed blue-fluorescence;
The volume ratio of pressing gained supernatant liquor and ammonium sulfate saturated solution is (40～60): (40～60), choose the ammonium sulfate saturated solution of 50% saturation ratio; The ammonium sulfate saturated solution of 50% saturation ratio is slowly joined in the container that holds supernatant liquor, and stir with glass stick, room temperature left standstill about 10-14 hour then, obtained the proteinic solution of saltouing;
The above-mentioned liquid of saltouing is carefully changed in the centrifuge tube, prepare centrifugal, parameter of noncentricity setting: 4000r/min, 30min.Remove the supernatant liquor of centrifugal gained after centrifugal, obtain the blue thick material of test tube bottom;
Use damping fluid repeatedly to dialyse in room temperature (use phosphate buffered saline buffer, phosphate buffering liquid concentration is 0.01-0.05mol/L) the thick material of blueness, each dialysis time is 11-13 hour, obtains dialyzate; In the present embodiment, dialyse 3 times, dialysis time is 12 hours, and the concentration of phosphate buffered saline buffer is greater than back employed phosphate buffering liquid concentration when dialysing several times when dialysing for the first time;
Spin dialysis liquid to remove metaprotein and insolubles, promptly obtains protein liquid;
Above-mentioned protein liquid is placed in the baking oven, and the control temperature of oven is at 30-40 ℃, and the time is 2-4 days, promptly obtains Phycocyanins, C-.In the present embodiment, choosing oven temperature is 35 ℃, and the time is 2 days.
Cyanophycin in this method can adopt commercially available, also can adopt thick leaching process of the present invention, adopts the cost of the thick Phycocyanins, C-that extracts of the present invention lower.
Embodiment 2
Organic composite snow-melting agent, it is prepared from by ethylene glycol, coconut oil diethanol amide, Phycocyanins, C-and distilled water, and each raw materials in part by weight sees Table 2.
Table 2
| Ethylene glycol | 5 parts |
| Coconut oil diethanol amide | 1 part |
| Phycocyanins, C- | 0.5 part |
| Distilled water | 40 parts |
The organic composite snow-melting agent in the present embodiment and the preparation method of Phycocyanins, C-do not repeat them here with embodiment 1.The experimental result of resulting organic composite snow-melting agent is referring to table 12.
Embodiment 3
Organic composite snow-melting agent, it is prepared from by ethylene glycol, coconut oil diethanol amide, polysaccharides and distilled water, and each raw materials in part by weight sees Table 3.
Table 3
| Ethylene glycol | 5 parts |
| Coconut oil diethanol amide | 1 part |
| Polysaccharides | 1 part |
| Distilled water | 40 parts |
The preparation method's of above-mentioned organic composite snow-melting agent step is: with 5 parts of ethylene glycol, and 1 part of coconut oil diethanol amide, 1 part of polysaccharides, and distilled water is positioned in the container for 40 parts; At room temperature, stirring fully dissolves its component, promptly obtains above-mentioned organic composite snow-melting agent.
The experimental result of resulting organic composite snow-melting agent is referring to table 12.
In the present embodiment, the extraction step of polysaccharides is:
Take by weighing the spirulina powder of 20g with electronic balance, the sodium hydroxide solution that uses 0.1mol/L～0.2mol/L is as extracting solution, the glass stick back normal temperature extracting that stirs, and the extracting time is 1h.Wherein, the quality of sodium hydroxide solution is 7 to 10 times of spirulina powder quality;
Above-mentioned extract is placed in the centrifuge tube, and 4000r/min, centrifugation time are 20min, and the supernatant liquor of getting centrifugal gained respectively places in the small beaker, and the algae mud of pipe bottom places in another beaker, and this supernatant liquor is a blue-greenish colour liquid;
The extracting solution that above-mentioned algae mud is added again 5 times of volumes carries out extracting with similarity condition, and is centrifugal, obtains the supernatant liquor of centrifugal gained, merges supernatant liquor twice;
The Sevag method is removed albumen: get long-pending 0.24 times the Sevag reagent (volume ratio of chloroform and propyl carbinol is 5: 1) of algae liquid and join in the supernatant liquor of above-mentioned merging, the powerful 20min that stirs;
Get the interior supernatant liquid of centrifuge tube behind the centrifugal above-mentioned solution in Erlenmeyer flask,, the 95wt% ethanol of 4 times of volumes of adding leaves standstill 30min after shaking up, and the Erlenmeyer flask bottom is polysaccharide liquid;
Polysaccharide liquid is placed in the centrifuge tube centrifugal, 4000r/min, centrifugation time are 30min.Precipitation is taken out in the centrifugal back that finishes, and cleans with acetone, places 45 ℃ baking oven inner drying at last, promptly obtains polysaccharides after the oven dry.
Embodiment 4
Organic composite snow-melting agent, it is prepared from by ethylene glycol, coconut oil diethanol amide, polysaccharides and distilled water, and each raw materials in part by weight sees Table 4.
Table 4
| Ethylene glycol | 5 parts |
| Coconut oil diethanol amide | 1 part |
| Polysaccharides | 1 part |
| Distilled water | 40 parts |
The preparation method of above-mentioned organic composite snow-melting agent and polysaccharides is basic identical with embodiment 3, difference is: in the preparation method of polysaccharides, remove Tricholroacetic Acid (TCA) method that is to use in the albumen step, its step is 7.0 for the pH value of regulating supernatant liquor with hydrochloric acid, add 10% TCA solution, magnetic agitation 20min again.
The experimental result of resulting organic composite snow-melting agent is referring to table 12.
Embodiment 5
Organic composite snow-melting agent, it is prepared from by ethylene glycol, coconut oil diethanol amide, polysaccharides and distilled water, and each raw materials in part by weight sees Table 5.
Table 5
| Ethylene glycol | 5 parts |
| Coconut oil diethanol amide | 1 part |
| Polysaccharides | 0.5 part |
| Distilled water | 40 parts |
The preparation method of above-mentioned organic composite snow-melting agent and polysaccharides does not repeat them here with embodiment 4.The experimental result of resulting organic composite snow-melting agent is referring to table 12.
Embodiment 6:
Organic composite snow-melting agent, it is prepared from by ethylene glycol, polysaccharides and distilled water, and each raw materials in part by weight sees Table 6.
Table 6
| Ethylene glycol | 5 parts |
| Polysaccharides | 1 part |
| Distilled water | 40 parts |
The preparation method's of above-mentioned organic composite snow-melting agent step is: with 5 parts of ethylene glycol, and 1 part of polysaccharides, and distilled water is positioned in the container for 40 parts; At room temperature, stirring fully dissolves its component, promptly obtains above-mentioned organic composite snow-melting agent.Wherein, the preparation method of polysaccharides is with embodiment 4.
The experimental result of resulting organic composite snow-melting agent is referring to table 12.
Embodiment 7:
Organic composite snow-melting agent, it is prepared from by ethylene glycol, polysaccharides and distilled water, and each raw materials in part by weight sees Table 7.
Table 7
| Ethylene glycol | 0.5 part |
| Polysaccharides | 0.5 part |
| Distilled water | 30 parts |
The preparation method's of above-mentioned organic composite snow-melting agent step is: with 0.5 part of ethylene glycol, and 0.5 part of polysaccharides, and distilled water is positioned in the container for 30 parts; At room temperature, stirring fully dissolves its component, promptly obtains above-mentioned organic composite snow-melting agent.Wherein, polysaccharides adopts existing.
The experimental result of resulting organic composite snow-melting agent is referring to table 12.
Embodiment 8:
Organic composite snow-melting agent, it is prepared from by ethylene glycol, polysaccharides and distilled water, and each raw materials in part by weight sees Table 8.
Table 8
| Ethylene glycol | 5 parts |
| Polysaccharides | 5 parts |
| Distilled water | 50 parts |
The preparation method's of above-mentioned organic composite snow-melting agent step is: with 5 parts of ethylene glycol, and 5 parts of polysaccharides, and distilled water is positioned in the container for 50 parts; At room temperature, stirring fully dissolves its component, promptly obtains above-mentioned organic composite snow-melting agent.Wherein, polysaccharides adopts existing.
The experimental result of resulting organic composite snow-melting agent is referring to table 12.
In above all embodiment, nonionogenic tenside is a coconut oil diethanol amide, but the present invention is not limited to coconut oil diethanol amide, and it can also be other nonionogenic tensides, as sucrose ester, polyoxyethylate amide etc.
Now, by being mixed, following component prepares three kinds of contrast Snow Agent:
Comparing embodiment 1
Each raw materials in part by weight sees Table 9.
Table 9
| Ethylene glycol | 5 parts |
| Coconut oil diethanol amide | 1 part |
| Distilled water | 40 parts |
Comparing embodiment 2
Each raw materials in part by weight sees Table 10.
Table 10
| Coconut oil diethanol amide | 1 part |
| Phycocyanins, C- | 1 part |
| Distilled water | 40 parts |
Comparing embodiment 3
Each raw materials in part by weight sees Table 11.
Table 11
| Coconut oil diethanol amide | 1 part |
| Polysaccharides | 1 part |
| Distilled water | 40 parts |
The Snow Agent of embodiment 1 to 8 and comparing embodiment 1 to 3 preparation is positioned over respectively in the corresponding container, gets the snow suitable then and join in the Snow Agent with the Snow Agent quality.It is 2 ℃ outdoor that all samples are placed envrionment temperature, observes the snow melt effect of each sample, the total amount of liquid after 4 hours behind the stoichiometric melt, and experimental result can be referring to table 12.
Table 12
As can be seen from Table 12, add Phycocyanins, C-or polysaccharides to the ethylene glycol Snow Agent, the snow melt effect is enhanced, especially Phycocyanins, C-because its color is a mazarine, also is mazarine after this organic composite snow-melting agent snow melt, can effectively absorb solar radiant heat, quicken ice dissolution.For polysaccharides, remove proteic snow melt effect quite a lot of than TCA method with the Sevag method, may be because the propyl carbinol in the Sevag reagent does not have complete Ex-all, increased the content of organic alcohol in the sample.This just means with traditional ethylene glycol Snow Agent compares, and can reduce glycol content by interpolation Phycocyanins, C-or polysaccharides and reach same snow melt effect, has saved production cost greatly.
Each raw material that the present invention is cited, and the bound of each raw material of the present invention, interval value, and the bound of processing parameter (as temperature, time etc.), interval value can both realize the present invention, do not enumerate embodiment one by one at this.
Claims (7)
1. organic composite snow-melting agent is characterized in that it forms by comprising ethylene glycol, snow melt promotor and water feedstock production, and the shared parts by weight of each raw material are: 0.5～5 part of ethylene glycol, 0.1～5 part of snow melt promotor, 30～50 parts in water.
2. organic composite snow-melting agent according to claim 1 is characterized in that: described snow melt promotor is Phycocyanins, C-or polysaccharides.
3. organic composite snow-melting agent according to claim 1 is characterized in that: described raw material also includes nonionogenic tenside, and the shared parts by weight of described nonionogenic tenside are: 0.1～5 part.
4. organic composite snow-melting agent according to claim 3 is characterized in that: the shared parts by weight of described nonionogenic tenside are: 1 part.
5. according to claim 3 or 4 described organic composite snow-melting agents, it is characterized in that: described nonionogenic tenside is a coconut oil diethanol amide.
6. organic composite snow-melting agent according to claim 1 is characterized in that: described each raw materials in part by weight is: 5 parts of ethylene glycol, 1 part of snow melt promotor, 40 parts in water.
7. the preparation method of organic composite snow-melting agent according to claim 1 is characterized in that it may further comprise the steps:
1) by the shared parts by weight of each raw material be: 0.5～5 part of ethylene glycol, 0.1～5 part of snow melt promotor, 30～50 parts in water, choose ethylene glycol, snow melt promotor and water, standby;
2) ethylene glycol, snow melt promotor and water are at room temperature mixed and stir, obtain organic composite snow-melting agent.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533222A (en) * | 2011-07-06 | 2012-07-04 | 大连工业大学 | Antifreezing snow melting agent and preparation method thereof |
| CN103342989A (en) * | 2013-07-17 | 2013-10-09 | 王立巍 | Liquid snow-melting agent |
| CN104031610A (en) * | 2014-07-01 | 2014-09-10 | 滨州市旭泰化工科技有限公司 | Environment-friendly snow-melting agent and preparation method thereof |
| CN104629685A (en) * | 2015-01-30 | 2015-05-20 | 长安大学 | Composite environment-friendly efficient snow-melting agent |
| CN105778865A (en) * | 2016-03-25 | 2016-07-20 | 黄山九星环保科技有限公司 | Environment-friendly chloride-free snow melt antifreezing agent and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1480506A (en) * | 2003-08-08 | 2004-03-10 | 王泽斌 | Compsn for dissolving snow and ice |
-
2010
- 2010-09-07 CN CN2010102743848A patent/CN101921577B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1480506A (en) * | 2003-08-08 | 2004-03-10 | 王泽斌 | Compsn for dissolving snow and ice |
Non-Patent Citations (1)
| Title |
|---|
| 《材料导报：研究篇》 20100425 王勇等 螺旋藻类蛋白-有机醇复合防冻剂的制备研究 第33页右栏倒数第1段，第34页左栏1.2节～右栏1.3节，表1，第35页左栏2.2节 1-7 第24卷, 第4期 2 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533222A (en) * | 2011-07-06 | 2012-07-04 | 大连工业大学 | Antifreezing snow melting agent and preparation method thereof |
| CN102533222B (en) * | 2011-07-06 | 2013-10-23 | 大连工业大学 | Antifreezing snow melting agent and preparation method thereof |
| CN103342989A (en) * | 2013-07-17 | 2013-10-09 | 王立巍 | Liquid snow-melting agent |
| CN104031610A (en) * | 2014-07-01 | 2014-09-10 | 滨州市旭泰化工科技有限公司 | Environment-friendly snow-melting agent and preparation method thereof |
| CN104031610B (en) * | 2014-07-01 | 2015-10-28 | 滨州市旭泰化工科技有限公司 | Environment-friendly snowmelt agent and preparation method thereof |
| CN104629685A (en) * | 2015-01-30 | 2015-05-20 | 长安大学 | Composite environment-friendly efficient snow-melting agent |
| CN105778865A (en) * | 2016-03-25 | 2016-07-20 | 黄山九星环保科技有限公司 | Environment-friendly chloride-free snow melt antifreezing agent and preparation method thereof |
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| CN101921577B (en) | 2012-11-07 |
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