KR101617935B1 - Manufacturing for an eco-friendly frictional and de-icing agent using woodchips - Google Patents

Abstract

A method of manufacturing an eco-friendly snow remover having the role of a friction agent containing an alkali metal ion and a fusing agent by using a wood chip made of waste wood such as a wood which is left in the mountain after cutting and a wood chip used in a woodworking shop And more particularly, to a method for producing a long-term usable snow removing agent using the frictional property of wood through the immersion of alkali metals on a chip of wood and the sustained effect of metal ions.
It is also an eco-friendly alternative snow remover that can effectively prevent secondary environmental pollution such as corrosion caused by excessive use of existing snow removers and land acidification.

Description

{Manufacturing an eco-friendly frictional and de-icing agent using woodchips}

The present invention relates to a method for producing an eco-friendly snow remover having the role of a friction agent and a fusing agent both of which contain ions of alkali metals in the residual wood which is a forest resource. More specifically, And a method for producing a long-term usable snow removal material using the sustained release of metal ions.

Snow removers can be roughly classified into friction agents and snowmobiling agents. In the past, frictional agents used in Korea were mainly used in the past. However, these materials are mixed with accumulated snow, soot, and dust, resulting in more and more distant streets. In addition, after the snow melts, these materials can block the drain and sewer, and in severe cases can also cause respiratory disturbances. Therefore, there is a need for a new method to improve these, but there is no alternative product deserved. Recently, foreign products such as ash have been spotlighted. However, these products also have a good effect as a friction agent. However, It is not an effective method for pollution.

In Korea, more than 70% of the country is formed as a mountainous area, so it can be expected to utilize excellent forest resources. Recently, the collection of deforestation for mountainous areas has been increased by more than 14% due to the deficiency of hardwood defects, the renewal of damaged trees, the removal of damaged trees, and the cultivation of forests. It is also required to create high value by using these wood byproducts.

Since woody fibers contain a large amount of cellulose fibers, development of a variety of applications utilizing these characteristics is required, and a variety of studies have been conducted on cellulose asphalt additives.

Wood chips can be pulverized into various shapes, and in the case of wood chips having a proper shape, they have pores and can have a western effect on a specific material.

In the case of trees, there is an advantage that natural corrosion does not occur and environmental problems arise.

Because it is sprayed randomly when spraying the actual snow remover, the amount of metal ions that are sprayed is larger than the amount used for actual ice making, and once the ice is drained out, it is sprayed again. As a result, the amount of snowmelt is larger than the amount of snowmelt that is actually needed, and secondary pollution such as corrosion of the vehicle and road breakage caused by the sprayed snowmelt is caused as a serious problem. In order to improve this, the newly developed eco-friendly snow remover (magnesium, organic material, etc.) has a snow-removing effect comparable to that of existing products, but the disadvantage is high cost. Despite the development of various liquid and solid environmentally friendly products, the problem of the amount of snow removers used by spraying always exists.

Accordingly, the present invention aims at developing an eco-friendly snow removing agent capable of maximizing the period of snow-melting effect by increasing the friction coefficient of wood and the sustained release of metal ions.

The object of the present invention is the development of a rust-preventive agent having a frictional property and a sustained-release property by using a wood chip using waste materials such as wood chips produced from wood by-products and woodwork books. This is an environment-friendly product .

The present invention relates to the production of a new concept of a snow remover having a frictional property and a sustained release property using a wood chip utilizing waste resources.

The major items of snow removal are divided into friction agent and fusing agent. First, friction agents use various minerals such as tremor, stone powder, and volcanic acid. However, in the case of these minerals, the snow melts and brings secondary environmental pollution by these minerals. A possible way to solve this is how quickly the materials used as friction agents can be removed in an environmentally friendly way.

Removal of the most efficiently used friction material can be thought of as the conversion of organics from minerals, the most effective candidate for which is wood chips using waste resources.

In order to take advantage of the effective frictional effects of wood chips, it is necessary to maintain a thin piece of wood with a length of 1 to 20 mm and more effectively have a length of 5 to 10 mm. But you do not have to depend on it. In addition, thickness of 1 ~ 5mm is suitable, but it is not necessary to depend on it, and it is possible to make various shapes such as equilateral quadrilateral, rectangle and circle by controlling the shape of bite for use as effective friction material of wood chip .

Though the length, thickness and shape of these wood chips can also play an important role in the role of the wood chip as a release agent, a certain external shape does not determine the western effect of the wood chips, but a thin, Shows the best sustained effect.

The raw materials used for the production of wood chips may be wood chips from all the raw materials that can be produced by various kinds of wood chips, such as wood by-products, wood-based wood pulp, and construction wood pulp.

Sodium chloride and calcium chloride, which are conventionally used as snow melting materials, are mainly used due to problems of price and supply and demand. Recently, magnesium chloride and organic materials have been used as eco-friendly raw materials.

Sodium chloride and calcium chloride, which have been used in the past, are effective in terms of effective snow removal. However, these products cause secondary environmental problems such as road damage, vehicle corrosion, and damage to roadside trees through acidification. In order to solve this problem, we have recently attempted to switch to magnesium materials and organic snow removers that can reduce secondary environmental problems such as corrosion, but these eco-friendly products have a rapid substitution effect due to low snow removal effect and high product supply cost I can not come.

Also, in the case of snowmelt products that have been developed and sold until recently, there is no slow-release product, and excessive use of snowmobiling is the biggest problem of secondary pollution.

The most effective way to solve the problems mentioned above is to use the wood chip as a friction agent and the mother of the waste material using waste resources.

Ions that can be used as a snow melting agent by using wood chips as a mother material are made by using magnesium chloride which is more environmentally friendly as a main raw material and sodium methasilicate and lithium ion which can maximize auxiliary corrosion and snow removal effect, It is a key feature of the present invention to develop.

The content of the ionic materials used in the present invention is about 5 to 40% by weight of the entire wood chip, and more effectively, it can be adjusted to 10 to 15%. In the case of ionic materials that bring about the effect of snow removal, magnesium chloride is used as a main raw material, and sodium silicate and lithium ion which can enhance the penetration effect of ionic substances in wood chips and causticity in 1 ~ 10% of the raw materials are used LiCl, Li ₂ CO ₃ , Li ₂ O and the like can be used as a raw material of the lithium ion to be used at this time.

The manufacturing method of the novel concept of wood chip snow-removing agent having the friction and the slow-releasing property is the manufacturing process of the wood chip, the production of the ionic compound, the infiltration process of the ion salt, the drying and the packaging.

The production of wood chips is most effective when the length is about 10 mm and the thickness is about 3 mm by the above-mentioned method, but it can be suitably manufactured according to the form of the by-product of the wood used in the wood chip and the shape of the industrial waste wood, There is no significant restriction on snow removal.

The ionic compound is prepared by dissolving magnesium chloride, sodium silicate, lithium chloride, etc. in the ratio of 1: 1 with water. In this case, the ratio of 1: 1 is for the most effective ion deposition, and other various concentrations do not significantly affect the effect as a snow remover.

The most effective time can be adjusted to about 1 hour for the continuous manufacturing process, and the ionic salt can be completely immersed in the ionic salt solution It can be immersed or sprayed with various ionic salts into the wood chips.

In order to completely remove water, the product is dried at a temperature of 110 ° C or more for 1 to 2 hours to complete a product having an ionic salt on its surface and packaged to complete a new concept of eco-friendly snow removing agent having frictional properties and sustained release properties.

It is a method for conveying the contents mentioned above, and is not limited to the contents mentioned here.

In the case of existing snow remover, there are no products which are used in combination with the friction agent and the snow melting agent, so that products having both of these properties can be supplied. In addition, since the sustained release of wood chips is used, it is possible to have long-term snow removal effect, and the best effect is to reduce the amount of excessive snow removal agent drastically, thereby effectively preventing secondary environmental pollution caused by snow removal agent.

1 is a graph showing the results of Examples 1 to 3
FIG. 2 is a cross-
Fig. 4 is a cross-
FIG.

Examples 1 to 3

100 g of wood chips having a length of about 10 mm are immersed in an ionic salt solution having the composition shown in the following table for 24 hours and then dried in a drier at a temperature of 110 degrees or more for 1 hour to complete the snow removing agent.

Ionic salt solution Example 1 Example 2 Example 3 Magnesium Chloride 100g 100g 100g Sodium Metasilicate 1g 1g Lithium Chloride 0.5 g H ₂ O 500ml 500ml 500ml

The outline of the produced snow remover is shown in Fig.

Example 4 (Snowing effect)

100 g of the sample of Example 3 was placed in a 2 L beaker, and 100 g of ice was added to observe the effect of ice cooling at -20 캜 (0 to 100). <Fig. 2><Fig.3>

Example 5 (re-icing)

In a 2-liter beaker, 100 g of the sample of Example 3 was added, and 100 g of ice was added to completely dissolve. Then, 50 ml of water was added to the beaker and stored at -20 캜 for 5 days. As a result of the experiment, it was confirmed that the wood chip absorbed the water and the re-icing did not occur. <Fig. 4>

Example 6 (Forced corrosion test)

Example 3 Into a 100 ml beaker, 3% sample solution, 3% magnesium chloride solution and 3% sodium chloride solution were added, and air was allowed to pass therethrough. Then iron pieces were immersed in the sample to observe the time of corrosion, Respectively. Experimental Example 3 The degree of corrosion of the 3% solution of the sample, the 3% solution of magnesium chloride, and the 3% solution of sodium chloride was examined. The corrosion rate of the iron piece in the 3% solution of Example 3 was confirmed to be low. It was confirmed that the degree of corrosion was similar to that of the iron pieces put into the water.

Example 7 (Acute toxicity test)

Example 3 The samples were subjected to a daphnia acute toxicity test at the Korean Chemical Testing and Research Institute, a nationally recognized testing laboratory.

As a result of 48 hours acute toxicity test using water fleas, it was confirmed that water quality was not changed for 48 hours and that daphnia survived to be non - toxic.

Claims (8)

Magnesium chloride for snow removal effect. the ionic salt is immersed in the ionic solution by immersing or adsorbing the wood chip into the ionic solution composed of sodium metasilicate and lithium ion and water for a certain period of time, By weight based on the total weight of the composition. The method of claim 1, wherein the content of the ionic materials used comprises 5% to 40% by weight of the whole wood chips. The method of claim 1, wherein the content of sodium metasilicate and lithium ion is 1 to 10% of magnesium chloride. 4. The method of claim 3, wherein the content of sodium metasilicate and lithium ion is 1 to 10% of magnesium chloride. 5. The method of claim 4, wherein an ionic solution is prepared by mixing H2O with the composition of the ionic salt, and the wood chips are immersed in an ionic solution in an amount of 100 g. The method of claim 1, wherein the wood chips are immersed or adsorbed in a metal ion salt and then dried at 130 ° C for 1 to 2 hours to completely remove water.
The method of claim 6, wherein the step of infiltrating the ionic salt is about 1 hour or less. 5. The method of claim 4, wherein the ionic salt is dissolved in water at a ratio of 1: 1 to prepare an ionic solution.

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