CN1377933A - Anti-freezing product and its preparing method - Google Patents
Anti-freezing product and its preparing method Download PDFInfo
- Publication number
- CN1377933A CN1377933A CN 02116903 CN02116903A CN1377933A CN 1377933 A CN1377933 A CN 1377933A CN 02116903 CN02116903 CN 02116903 CN 02116903 A CN02116903 A CN 02116903A CN 1377933 A CN1377933 A CN 1377933A
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- weight part
- freezing product
- freezing
- calcium chloride
- water
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Abstract
The anti-freezing product consists of calcium chloride 90-98 wt%, sodium fluoride 4-8.5 wt%, carbonylamide 0.2-0.9 wt% and Na2B4O7 0.1-0.3 wt%. It is mainly used for anti-freezing of coal and ore during transportation and for easy to unloading. Compared with traditional method, the present invention has low cost and high anti-freezing effect.
Description
Invention field
The present invention relates to a kind of anti-freezing product and preparation method thereof, especially a kind of coal is with preventing agar and preparation method thereof.
Background technology
The northern area winter temperature is low, and when moisture coal train was transported outward, integral body was frozen in the compartment, and the harbour can't self-unloading.Make spent glycol make frost-resistant material in the past, cost is very high, mass consumption organic synthesis goods, and big " material " little usefulness, the organic industry serious waste of resources, extremely uneconomical.Use accidentally, the place of scattering also can cause environmental pollution.
Therefore, exist demand for the anti-freezing product that is used for moisture fine coal or broken coal and other moisture ore powder.
Summary of the invention
The purpose of this invention is to provide a kind of good freezing protection effect and anti-freezing product with low cost, it is mainly used in antifreeze in the low temperature transportation of moisture fine coal or broken coal and moisture epipastic mineral, make moisture fine coal or broken coal or moisture dust ore not freeze together, unload to make things convenient for it with conveying carriage.
Anti-freezing product of the present invention comprises following composition:
The calcium chloride of 90-98 weight part;
4-8.5 the Sodium Fluoride of weight part;
0.2-0.9 the carboxamide of weight part (urea); With
0.1-0.3 the sodium tetraborate (Na of weight part
2B
4O
7).
The preferred group of anti-freezing product of the present invention becomes:
91.6 the calcium chloride of weight part;
7.5 the Sodium Fluoride of weight part;
0.7 the carboxamide of weight part (urea); With
0.2 the sodium tetraborate (Na of weight part
2B
4O
7).
Wherein, calcium chloride, sodium tetraborate etc. also can use hydrate.
Utilize inexpensive inorganic salt calcium chloride, can reduce the cryohydric point of water effectively, reach the purpose of northern area winter coal transmission anti-freeze or transportation ore fully.
For not making inorganic salt corrosion compartment inwall, join a little Sodium Fluoride; For strengthening calcium chloride solvability at low temperatures, unlikely crystallization reduces cloud point, adds a small amount of industrial carboxamide (urea) (solubilizing agent); Be viscosity and the preservative property that improve this solution, suitably in and the acidity of calcium chloride water, add a small amount of sodium tetraborate (borax).At last, be dissolved in water in use, and transfer about pH to 7 with ammoniacal liquor or other alkaline matter.
Mineral compound calcium chloride (CaCl
2) mix with icy water, can get-55 ℃ refrigerant (seeing all kinds of chemical handbooks).Because after this salts solution is water-soluble, solution heat is higher negative value (heat release), and on the contrary, this solution can absorb a large amount of heat when low temperature crystallization, when no heat energy is supplied, then keeps liquid state for a long time.
For the corrosion of the calcium chloride solution that effectively prevents this high density to compartment metal (iron), add a certain amount of Sodium Fluoride (NaF), because can forming, F ion and Fe ion have the film [FeF that certain " isolations " acts on
6]
3-Or [FeF
6]
4-The title complex ion makes the corrosive nature that the unlikely generation of compartment metal (iron) is peeled off layer by layer, so claim that this thing be " blocker " (with reference to adding NaF in the water treating agent for boilers, with the effect of protecting the stove inwall to be corroded).Secondly, NaF is a strong base-weak acid salt, and hydrolysis shows alkalescence, can also be suitably in and CaCl
2The acidity of hydrolysis.
Adding industrial carboxamide (urea, urea), is the lyotropy that utilizes it, reduces the characteristic of cloud point, impels the CaCl of high density
2Surpassing or solubilized still during near solubleness.
Add sodium tetraborate (borax, Na
2B
4O
7), be for suitably increasing the viscosity of solution, make it to admix and can be bonded at coal grain surface in the coal, be unlikely and miss.Borax also has antirust (passivating metallic surfaces) and antiseptic property simultaneously; The aqueous solution shows alkalescence, can be suitably in the acidity of calcium chloride hydrolysis.
Wherein Sodium Fluoride can replace with Potassium monofluoride, but not preferred because cost is high.
The preparation method of anti-freezing product of the present invention is very simple, only needs proportioning in accordance with regulations, is crushed to 3mm and gets final product with interior granularity.Required disintegrating apparatus can be any disintegrating apparatus, for example is beater grinder.
During use, in 1: 3-1: 1 ratio is mixed with the aqueous solution with above-mentioned anti-agar product and water, adds ammoniacal liquor and transfers about pH to 7.On deciding when ground temperature, the deicing fluid of being prepared directly can be sprinkling upon the wall of conveying carriage and bottom (under the high slightly relatively situation of temperature, for example in-20 ℃), also deicing fluid can be mixed with coal or mineral (under the low-down situation of temperature, for example below-20 ℃), consumption is 3kg-20kg deicing fluid/ton coal or ore usually.
Specific embodiment
91.6kg Calcium Chloride Powder Anhydrous (industrial goods are more than 95%), 7.5kg Sodium Fluoride (industrial goods), 0.7kg carboxamide (industrial goods) and borax 0.2kg are crushed to about 3mm, pack behind the mixing.
During use, above anti-agar that makes and water are dissolved by 1: 2 mixed, transfer pH to 7 with ammoniacal liquor.
Anti-agar of the present invention detects through China Coal Research Institute test center, its quality accord with Q/SDDF 01-2000 standard.Assay is as follows:
| Sequence number | Interventions Requested | Standard-required | Assay | Test method | Individual event is estimated |
| 1 | Proportion (g/cm 3，20℃) | - | 1.275 | Specific gravity hydrometer | Qualified |
| 2 | Kinematic viscosity mm 2/s (20℃) (50℃) | - - | 2.79 1.56 | GB265 | Qualified |
| 3 | Sticking power | Go out to the anhydrous water clock of surface drying | Anhydrous water clock goes out | Q/SLH001 -96 | Qualified |
| 4 | Water-soluble (leaving standstill 24h) (sample: water=1: 1) | There is not precipitation, no crystallization | There is not precipitation, no crystallization | Q/SLH001 -96 | Qualified |
| 5 | PH value of water solution (sample: water=1: 1) | 7±0.5 | 6.5 | Accurate pH test paper | Qualified |
| 6 | Condensation point ℃ (sample: water=1: 1.38) | Be not higher than-45 ℃ | -47℃ | GB510 | Qualified |
The company standard of this product is as follows:
| Project | Index | Error | |
| Proportion is prevented agar: water=1: 1.38 | ?1.27g/cm 3(20℃) | 0.02g/cm 3 | |
| Kinematic viscosity is prevented agar: water=1: 1.38 | ?2.8mm 2/s(20℃) | ±0.2mm 2/s | |
| Sticking power | To water-tight of surface drying | - | |
| Water-soluble | Soluble in water | - | |
| Aqueous solution acid-basicity | PH＝7 | ±0.5 | |
| Cryohydric point (condensation point) | Anti-agar: water 1: 2 | ＜-30℃ | ±0.5℃ |
| 1∶1.8 | ＜-34℃ | ±0.5℃ | |
| 1∶1.6 | ＜-38℃ | ±0.5℃ | |
| 1∶1.38 | ＜-45℃ | ±0.5℃ | |
| 1∶1 | ＜-51℃ | ±0.5℃ | |
The methods of sampling:
By every 10T is a collection of, every crowd of sampling 1.0kg.
Test method:
1, proportion: specific gravity hydrometer normal temperature (20 ℃) actual measurement.
2, kinematic viscosity: with normal temperature (20 ℃) GB
265The test method actual measurement.
3, sticking power: Bed for Fine Coal (granularity 6-13mm water content is lower than 12%) is an amount of, plain cloth is on common blank sheet of paper, height 1cm, with the antifreeze amidin of 50% (weight percent) (dripping an amount of red pigment), (anti-agar: coal) ratio was sprayed on the coal grain equably in 0.4: 100, treat to check lower floor's blank sheet of paper behind the surface drying, anhydrous water clock goes out for qualified.
4, water-soluble: will prevent that agar is mixed with the solution of 50% (weight percent) with ordinary tap water, and allow the minor amount of water insolubles, clear liquid leaves standstill 24h, does not have precipitation, no crystallization is separated out to qualified.
5, aqueous solution acid-basicity: accurate pH test paper test.
6, cryohydric point (condensation point): use GB
510-83The test method actual measurement.
Use anti-freezing product of the present invention, it is cheap and easy to get to have a selection, and antifreezing effect is good, use and processing method simple, barren of coal harmful components sulphur and phosphorus etc., free from environmental pollution. Particularly calcium chloride changes into calcium oxide when the coal high-temp combustion, can also promote the raising of the ash fusion point of coal, prevents that burner hearth ash clinkering Jiao from playing beneficial effect, so belong to environment-friendly products. Through in the Factory, Shenmu, Shanxi border of the county and the refreshing eastern coal mining area of the Shenhua in south, Inner Mongol use, obtained extraordinary effect, favored by the user.
Claims (6)
1, a kind of anti-freezing product comprises:
The calcium chloride of 90-98 weight part;
4-8.5 the Sodium Fluoride of weight part;
0.2-0.9 the carboxamide of weight part (urea); With
0.1-0.3 the sodium tetraborate (Na of weight part
2B
4O
7).
2, according to the anti-freezing product of claim 1, consisting of of each component wherein:
91.6 the calcium chloride of weight part;
7.5 the Sodium Fluoride of weight part;
0.7 the carboxamide of weight part (urea); With
0.2 the sodium tetraborate (Na of weight part
2B
4O
7).
3,, it is characterized in that calcium chloride, sodium tetraborate, Sodium Fluoride also can use its hydrate according to the anti-freezing product of claim 1.
4,, it is characterized in that Sodium Fluoride can replace with the Potassium monofluoride of equivalent according to claim 1,2 or 3 anti-freezing product.
5, the preparation method of claim 1,2 or 3 anti-freezing product comprises described each component is crushed to 3mm with interior particle diameter, mix, during use, with water in 1: 3-1: 1 ratio dissolving is neutralized to about pH=7 with alkaline matter and gets final product.
6, be used for moisture fine coal or broken coal or moisture epipastic mineral antifreeze purposes according to claim 1,2 or 3 anti-freezing product in transportation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021169039A CN1151227C (en) | 2002-04-26 | 2002-04-26 | Anti-freezing product and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021169039A CN1151227C (en) | 2002-04-26 | 2002-04-26 | Anti-freezing product and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1377933A true CN1377933A (en) | 2002-11-06 |
| CN1151227C CN1151227C (en) | 2004-05-26 |
Family
ID=4744282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021169039A Expired - Fee Related CN1151227C (en) | 2002-04-26 | 2002-04-26 | Anti-freezing product and its preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1151227C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007113658A3 (en) * | 2006-04-05 | 2007-11-29 | Perla S R L | Antifreeze composition |
| CN102408872A (en) * | 2011-09-20 | 2012-04-11 | 武汉理工大学 | Salt-storing deicing material special for asphalt pavement and preparation method thereof |
| CN101747865B (en) * | 2009-12-12 | 2012-07-18 | 呼和浩特铁路局科研所 | Antifreezing product for the transportation of bulk granular goods, and preparing method thereof |
| CN103113952A (en) * | 2013-03-01 | 2013-05-22 | 赵志文 | Pulverized coal sulfur fixing, freeze preventing and coarsening agent, preparation method and application method thereof |
| CN108404217A (en) * | 2018-06-06 | 2018-08-17 | 浙江大学 | The method that one-step method quickly prepares large scale calcium phosphate/chitosan organic-inorganic hybrid material |
| CN108714249A (en) * | 2018-06-06 | 2018-10-30 | 浙江大学 | The method that urea solubilising method prepares calcium carbonate-chitosan three-dimensional bone nail material |
-
2002
- 2002-04-26 CN CNB021169039A patent/CN1151227C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007113658A3 (en) * | 2006-04-05 | 2007-11-29 | Perla S R L | Antifreeze composition |
| CN101747865B (en) * | 2009-12-12 | 2012-07-18 | 呼和浩特铁路局科研所 | Antifreezing product for the transportation of bulk granular goods, and preparing method thereof |
| CN102408872A (en) * | 2011-09-20 | 2012-04-11 | 武汉理工大学 | Salt-storing deicing material special for asphalt pavement and preparation method thereof |
| CN102408872B (en) * | 2011-09-20 | 2014-04-09 | 武汉理工大学 | Salt-storing deicing material special for asphalt pavement and preparation method thereof |
| CN103113952A (en) * | 2013-03-01 | 2013-05-22 | 赵志文 | Pulverized coal sulfur fixing, freeze preventing and coarsening agent, preparation method and application method thereof |
| CN108404217A (en) * | 2018-06-06 | 2018-08-17 | 浙江大学 | The method that one-step method quickly prepares large scale calcium phosphate/chitosan organic-inorganic hybrid material |
| CN108714249A (en) * | 2018-06-06 | 2018-10-30 | 浙江大学 | The method that urea solubilising method prepares calcium carbonate-chitosan three-dimensional bone nail material |
| CN108714249B (en) * | 2018-06-06 | 2020-06-30 | 浙江大学 | Method for preparing calcium carbonate-chitosan three-dimensional bone screw material by urea solubilization method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1151227C (en) | 2004-05-26 |
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Owner name: ORDOS SHENDONGTIANLONG CHEMICAL CO., LTD. Free format text: FORMER OWNER: WANG ZEBIN Effective date: 20100426 |
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Free format text: CORRECT: ADDRESS; FROM: 719315 SHENHUA SHENDONG DIVERSIFIED CHEMICAL FACTORY, DALIUTA TOWN, SHENMU COUNTY, SHANXI PROVINCE TO: 017209 TIANLONG CHEMICAL COMPANY, BULIANTA COALMINE YARD, YINJINHUOLUO WULANMULUN TOWN, ORDOS CITY, INNER MONGOLIA, CHINA |
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Effective date of registration: 20100426 Address after: 017209 Chinese Inner Mongolia Erdos Yijinhuoluo City Ulan Mulun town of Bulianta coal mine hospital Tianlong chemical company Patentee after: Erdos Shendong Tianlong Chemical Industry Co., Ltd. Address before: Big Liu 719315 Shenmu county in Shaanxi Province town by Shenhua Shendong Chemical Factory Patentee before: Wang Zebin |
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Granted publication date: 20040526 Termination date: 20210426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |