KR101875680B1 - manufacturing method of degreasing and anti-corrosion composition and thereby degreasing and anti-corrosion composition - Google Patents

Abstract

The present invention relates to a degreasing and anticorrosive agent for enabling long-tern storage of metal processed products. More specifically, a method of preparing a degreasing and anticorrosive composition, and the degreasing and anticorrosive composition prepared by the method, the method comprising: a raw material mixing step of mixing 50 to 70 wt% of water, 1.5 to 4 wt% of potassium hydroxide (KOH), 10 to 17 wt% of tetrapotassium pyrophosphate (TKPP), 0.1 to 1.4 wt% of glycolic acid, 0.02 to 0.1 wt% of triazine, 1 to 5 wt% of glycerin, 1 to 10 wt% of boric acid, 2 to 10 wt% of monoisopropanolamine-borate (MIPA-borate), and 2 to 10 wt% of monoethanolamine-borate (MEA-borate) to obtain a mixture; a heating step of heating the mixture so that the temperature of the mixture is in a range of 65 to 75°C; and a UV treatment step of irradiating ultraviolet rays onto the heated mixture.

Description

[0001] The present invention relates to a method for producing a de-lipoic acid composition and a de-

The present invention relates to a degreasing agent and rust inhibitor for enabling long-term storage of a metal workpiece, and a method for producing a deacidified lipid composition and a deodorant lipid composition using the same.

As the industry develops, products made of metal are being produced. These metal products are rust-proofed to prevent corrosion because they are vulnerable to corrosion. Recently, as the temperature is rising due to the warming of the earth and the climate is becoming more humid, more stringent rust prevention treatment is demanded than in the past. Normally, the anti-rust treatment is performed by first wrapping a metal product with anti-corrosive paper, and then taping or bending.

However, since metal products are usually heavy in weight, it has been very difficult to taping or bending the metal product after wrapping it in a rustproof paper while moving the metal product, and it took much time in the packaging and taping / bending processes. Especially, it took a lot of time in the process of rusting, so it was exposed to the corrosive environment until the rust was completed.

In addition, after the transportation and storage of the metal products are completed, the recycled materials separated from the metal products can not be recycled, so they are disposed of through incineration. However, toxic substances such as dioxins were generated during the incineration of the pollution-causing soil, thereby causing environmental pollution.

On the other hand, since commercialized metallic automobile parts are mass-produced and circulated, they must be stored for a long period of time, so that degreasing and rust prevention should be performed. That is, there is a need to remove various organic substances remaining in the manufacturing process, and there is also a need for rust prevention for long-term storage.

Separating the degreasing and rusting for the product is irrational from the viewpoint of cost, so there are many advantages if it is possible to attain both the degreasing and the rust prevention purpose at the same time.

The various known degreasing methods are as follows.

(1) solvent degreasing method

It is a method of removing organic matter by using a solvent such as gasoline, solvent and trichloroethylene (TCE) by immersing the surface by dipping or the like, or removing the oil by steam of a solvent.

Chlorine-based hydrocarbons such as trichlorethylene are mainly used in general industrial fields, and they are widely used because they can shorten drying time due to strong cleaning power and quick drying effect. However, such chlorinated hydrocarbons have a problem of causing air and water pollution and destruction of the ozone layer on the earth,

Regulations are being strengthened.

(2) Emulsion degreasing method

Kerosene, or naphtha, and then the oiled (emulsified) degreasing agent is dispersed in water and heated. In this case, alkali may be added in order to increase the degreasing power.

(3) electrolytic cleaning method

The membrane of the organic substance attached to the surface of the workpiece is broken by hydrogen or oxygen gas generated from the cathode or the anode, and the solution is agitated to mechanically degrease it.

(4) Alkali cleaning method

Alkali degreasing agents are most widely used at present along with solvent degreasing method because they have various merits such as low cost and simple device in degreasing process.

The alkaline degreasing cleaner generally performs a degreasing process by combining one or a combination of the concepts of saponification, emulsion, and dispersion.

Organic matter attached to the surface of the material can be divided into vegetable oil and mineral oil.

Vegetable oil is saponified with alkaline hydroxides such as caustic soda and decomposed into soap (fatty acid) and glycerin, all of which are water-soluble.

In the case of mineral oil, saponification (saponification) reaction is difficult to remove and is usually removed by emulsification, dispersion and precipitation.

The removal of mineral oil has been widely used, for example, by first dispersing an organic material in an emulsion using a surfactant, and then removing it by binding precipitation with silicon dioxide (SiO 2) in an alkali compound.

When the surfactant is added to the alkali salt in the above degreasing step, the interfacial tension of the oil is lowered, so that the oil or the like, which is firmly attached to the oil, is removed from the material.

Korean Patent Publication No. 10-2005-0090062

Accordingly, the present invention provides a method for producing a deacidified lipid composition and a deodorized lipid composition prepared by the method.

The present invention provides a method for preparing a deacidoxicidal composition comprising 50 to 70% by weight of water, 1.5 to 4% by weight of potassium hydroxide (KOH), 10 to 17% by weight of potassium pyrophosphate (TKPP) 0.1 to 1.4 wt% of GLYCOLIC ACID, 0.02 to 0.1 wt% of TRIAZINE, 1 to 5 wt% of glycerin, 1 to 10 wt% of boric acid, 1 to 10 wt% of monoisopropanolamine, 2 to 10% by weight of boric acid (MIPA-BORATE) and 2 to 10% by weight of monoethanolamine-boric acid (MEA-BORATE); Heating the mixture so that the temperature of the mixture is in the range of 65 ° C to 75 ° C; And a UV treatment step for causing the heated mixture to be irradiated with UV light.

Preferably, the UV treatment step is such that UV is irradiated on the upper part of the agitating tank while uniformly mixing the same in the agitating tank.

Preferably, the UV treatment step is performed such that uniform mixing is performed in a stirring tank, and then UV is irradiated from a circulating flow path that is discharged from the stirring tank again and flows in again.

Preferably, in the UV treatment step, the wavelength of the UV is in the range of 320 to 400 nm.

The present invention also provides a method for producing a water-soluble polymer composition comprising 50 to 70 wt% of water, 1.5 to 4 wt% of potassium hydroxide (KOH), 10 to 17 wt% of potassium pyrophosphate (TKPP), 0.1 to 1.4 wt% of GLYCOLIC ACID, The present invention relates to a process for the production of a polyurethane resin composition which comprises 0.02 to 0.1 wt% of TRIAZINE, 1 to 5 wt% of glycerin, 1 to 10 wt% of boric acid, 2 to 10 wt% of monoisopropanolamine-boric acid (MIPA- And 2 to 10 wt% of boric acid (MEA-BORATE).

According to the method for producing the deacidoxylic acid composition according to the present invention, it is possible to provide the deacidic acid composition having excellent degreasing and rust-inhibiting functions by allowing the main components to be homogeneously mixed.

In addition, the deacidoxic composition of the present invention can simultaneously achieve the purpose of degreasing and rust-inhibiting the metal product by using it at once, thereby reducing the cost and improving the productivity.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a manufacturing process diagram of a method for producing a deacidic lipid composition according to the present invention. FIG.
2 is a conceptual view of a UV treatment step.
Figure 3 is a conceptual diagram for another form of UV treatment step.

Hereinafter, a method for preparing a deacidoxylated composition according to the present invention and a deacidoxylated composition prepared through the method will be described in detail, and the attached drawings will be referred to. It should be understood, however, that the drawings and detailed description thereof illustrate one feasible example according to the technical idea of the present invention, and the technical scope of protection of the present invention is not limited thereto.

FIG. 2 is a conceptual diagram of the UV treatment step, and FIG. 3 is a conceptual diagram of another form of the UV treatment step.

As shown in the figure, the method of preparing the deacidoxic composition according to the present invention comprises a raw material mixing step (S100), a heating step (S200), and a UV treatment step (S300).

In the raw material mixing step (S100), the main components constituting the deacid lipid composition are prepared and mixed at an appropriate ratio, and mixed at an exact ratio.

The main constituents used in the present invention include water, potassium hydroxide (KOH), potassium pyrophosphate (TKPP), GLYCOLIC ACID, TRIAZINE, glycerin, boric acid, Isopropanolamine-boric acid (MIPA-BORATE), and monoethanolamine-boric acid (MEA-BORATE).

(KOH), potassium pyrophosphate (TKPP) is used as a degreasing cleaner, GLYCOLIC ACID is used as a wetting agent, TRIAZINE is used as a copper ion sequestering and reducing agent, , Boric acid (BORIC ACID) is used as a rust inhibitor, and monoisopropanolamine-boric acid (MIPA-BORATE) and monoethanolamine-boric acid (MEA-BORATE) are used as surfactants.

The mixing ratio of the main constituents of the present invention can be made as follows in terms of% by weight.

(WATER), 1.5 to 4 wt% of potassium hydroxide (KOH), 10 to 17 wt% of potassium pyrophosphate (TKPP), 0.1 to 1.4 wt% of GLYCOLIC ACID, triazine (TRIAZINE) 1 to 10 wt% of boric acid, 1 to 10 wt% of boric acid, 2 to 10 wt% of monoisopropanolamine-borate, 1 to 5 wt% of monoethanolamine-boric acid (MEA -BORATE) at a ratio of 2 to 10% by weight.

The raw material mixing step (S100) is followed by the heating step (S200).

In the heating step (S200), the mixture is heated for a suitable time in the range of 65 占 폚 to 75 占 폚. If the heat is applied to the mixture, the reaction between the mixture occurs smoothly, and homogeneous mixing is possible.

The heating step S200 is followed by a UV treatment step S300.

The UV treatment step (S300) is a method for allowing the mixtures to be mixed more homogeneously. When UV is irradiated, the mixture is evenly mixed due to the dispersing effect.

Preferably UV lamps or UV LEDs are utilized for the UV treatment step (S300).

UV (ultraviolet ray) has a wavelength in the range of 100 to 400 nm. In the present invention, the wavelength range of UV is in the range of 320 to 400 nm.

The longer the wavelength, the greater the penetration depth, so the ultraviolet light of the longest wavelength should be used to provide an efficient dispersion effect.

Basically, the heating step (S200) of heating the mixture can be performed in a predetermined stirring tank. That is, it is possible to simultaneously heat the mixture while mixing in a stirring tank, and heat the mixture to an appropriate temperature.

Fig. 2 is a conceptual diagram of a UV treatment step, and Fig. 3 is a conceptual diagram of another UV treatment step.

In the UV treatment step (S300) of the present invention, UV is irradiated downward from the top of the agitating tank (10) to give a dispersion effect to the mixture. The mixture is stirred in the agitating tank (10) to irradiate the UV to uniformly apply the UV, and the UV to be used has the longest wavelength range of 320 to 400 nm, so that the dispersion effect of UV can be deep.

More preferably, in the UV treatment step (S300), the mixture is homogeneously mixed in the stirring tank (10), the mixture is discharged from the stirring tank (10) through the circulation channel (20) (UV) in the circulating flow passage 20 to perform the UV treatment on the mixture.

This type of UV treatment can be suitably used especially in the case of mass production, and the UV can be evenly applied to the whole mixture in a short time, thereby improving the efficiency and producing a high-quality decalcified liposome composition.

A circulation flow passage 20 is formed in which a discharge port 11 is provided at a lower end of a predetermined stirring tank 10 and an inlet 12 is provided at an upper end of the stirring tank 10 to connect the discharge port 11 and the inlet port 12, A UV lamp is attached to at least one or a plurality of locations of the circulation flow passage 20 so as to act on the mixture flowing through UV, thereby enhancing the dispersion effect. Preferably, the circulating flow path allows the mixture to flow as wide a surface area as possible so that the UV can be evenly applied.

On the other hand, the present invention also relates to a deacid lipid-containing composition produced by the above-described method.

The compositions and ratios of the raw materials constituting the deodorant composition are as follows.

That is, the deacid lipid peroxide composition of the present invention comprises 50 to 70% by weight of water, 1.5 to 4% by weight of potassium hydroxide (KOH), 10 to 17% by weight of potassium pyrophosphate (TKPP), 0.1 to 4% by weight of GLYCOLIC ACID 1 to 10% by weight of boric acid, 1 to 10% by weight of monoisopropanolamine-boric acid (MIPA-BORATE), 2 to 10% by weight of boric acid, By weight, and 2 to 10% by weight of monoethanolamine-boric acid (MEA-BORATE).

Specific examples of the deacid lipid-containing composition prepared through the production method of the present invention are as follows.

A mixture of 69.75 wt% of water, 3.15 wt% of potassium hydroxide (KOH), 13.25 wt% of potassium pyrophosphate (TKPP), 0.55 wt% of GLYCOLIC ACID, 0.05 wt% of TRIAZINE, The mixture is mixed at a ratio of 2.00 wt%, boric acid (BORIC ACID) 3.25 wt%, monoisopropanolamine-boric acid (MIPA-BORATE) 4 wt%, monoethanolamine-boric acid (MEA-BORATE) .

The mixture consisting of the raw materials is heated to maintain a temperature of 67 캜, and maintained at 67 캜 for a duration of about 30 minutes.

Next, the mixture is irradiated with UV by using a stirring tank or a circulating flow path so that the mixture is evenly dispersed into a uniform mixture.

Meanwhile, it has been found that the deacidoxylic acid composition according to the present invention has an appropriate mixing ratio of the constituent materials, and when these ratios exceed or fall within the set ranges, precipitation occurs and the function is not exhibited.

As a result of the test while adjusting the mixing ratio of the substances constituting the composition, the critical meaning of the mixing ratio of the main components was confirmed.

As shown in Table 1 below, the presence or absence of precipitation was checked by dividing into a control group and an experimental group.

A total of 10 experimental groups were prepared by varying the composition ratio of the constituents, and the presence or absence of precipitation was checked over time.

Experimental group water KOH TKPP GLYCOLIC ACID TRIAZINE Glycerin BORIC ACID MIPA-BORATE MEA-BORATE Precipitation
Whether One 82.38 1.5 10 0.1 0.02 One One 2 2 Precipitation 2 64.24 1.5 14 0.7 0.06 2.5 5 6 6 Non precipitation 3 45 1.5 17 1.4 0.1 5 10 10 10 Precipitation 4 63.88 3 12 0.1 0.02 3 5 6 7 Non precipitation 5 62.74 3 14 0.7 0.06 2.5 5 6 6 Non precipitation 6 55.5 3 17 1.4 0.1 5 7 5 6 Non precipitation 7 46.5 3 20 2 0.5 5 5 12 6 Precipitation 8 62.23 4 15 0.7 0.07 3 5 5 5 Non precipitation 9 40.24 4 25 0.7 0.06 6 12 6 6 Precipitation 10 50.5 4 12 1.4 0.1 4 10 8 10 Non precipitation

In Experiment Group 2, "Experiment Group A", "Experiment Group B", "Experiment Group C", and "Experiment Group C" were used in the test group 2, "Experiment Group D", Experiment Group 8 should be labeled "Experiment Group E", and Experiment Group 10 should be labeled "Experiment Group F".

It has been confirmed that the deacid lipid-peroxide composition prepared through the above-described method has excellent degreasing and rust-preventing performance.

The results of the specific comparison test are as follows. The processed flange was selected as a test product, and the effect of the general anti-rust agent and the deacid lipid composition of the present application was verified.

The machined flange should be individually packaged as it can be used as a consumable for various purposes and must be rust-proofed before packaging.

A total of seven working flanges were prepared, one control was applied with a general rust inhibitor by a spray method, and the deodorant lipid composition of the present invention was applied by spraying to the experimental group.

The changes were observed while leaving the machined flanges separated from the control and experimental groups under the same conditions. In order to reduce the test period, the change in the humid underground space was observed for 30 days.

As the time passes, the weight of the machined flange is changed. If the rust prevention is not properly performed, corrosion will occur and the weight change will increase. Through these changes, it is possible to confirm the efficacy of the deacid lipid composition according to the present invention.

County classification Sample number 0 day Day 5 10th day Day 15 Day 20 25th day 30th day Control group S1 2987 g + 6mg + 10 mg + 12mg + 18mg + 20mg + 22mg Experimental group A S2 2971g -1mg + 0 mg + 1mg + 6mg + 7mg + 11 mg Experimental group B S3 2966g + 1mg + 0 mg + 1mg + 0 mg + 1mg + 2mg Experimental group C S4 2981g -1mg + 0 mg + 1mg + 0 mg + 1mg + 1mg Experimental group D S5 2977 g + 0 mg + 0 mg + 1mg + 2mg + 3mg + 3mg Experimental group E S6 2972g + 2mg + 1mg + 1mg + 1mg + 1mg + 2mg Experimental group F S7 2963g + 1mg + 0 mg + 1mg + 3mg + 5mg + 10 mg

As shown in Table 2, it was confirmed that the samples of the experimental groups had significantly less rust formation than the control group. Thus, the deacid lipid composition according to the present invention is suitable for the purpose of rust inhibition.

The method and the deodorant lipid composition according to the present invention can be used as a degreasing and rust preventing agent for long-term storage and distribution of automotive metal parts.

S100: raw material mixing step
S200: heating step
S300: UV treatment step
10: stirring tank 11: outlet
12: inlet
20:

Claims (5)

(WATER), 1.5 to 4 wt% of potassium hydroxide (KOH), 10 to 17 wt% of potassium pyrophosphate (TKPP), 0.1 to 1.4 wt% of GLYCOLIC ACID, triazine (TRIAZINE) 1 to 10 wt% of boric acid, 1 to 10 wt% of boric acid, 2 to 10 wt% of monoisopropanolamine-borate, 1 to 5 wt% of monoethanolamine-boric acid (MEA -BORATE) in an amount of 2 to 10% by weight;
Heating the mixture so that the temperature of the mixture is in the range of 65 ° C to 75 ° C;
And a UV treatment step of causing the heated mixture to be irradiated with UV light. The method according to claim 1,
Wherein the UV treatment step comprises:
Wherein UV is irradiated on the upper part of the agitating tank so that uniform mixing is performed in the agitating tank. The method according to claim 1,
Wherein the UV treatment step comprises:
Wherein the mixture is uniformly mixed in a stirring tank, and then UV is irradiated from a circulation channel which is discharged from the stirring tank and flows in again. The method according to claim 1,
Wherein in the UV treatment step, the wavelength of the UV is in the range of 320 to 400 nm. (WATER), 1.5 to 4 wt% of potassium hydroxide (KOH), 10 to 17 wt% of potassium pyrophosphate (TKPP), 0.1 to 1.4 wt% of GLYCOLIC ACID, triazine (TRIAZINE) 1 to 10 wt% of boric acid, 1 to 10 wt% of boric acid, 2 to 10 wt% of monoisopropanolamine-borate, 1 to 5 wt% of monoethanolamine-boric acid (MEA -BORATE) in an amount of 2 to 10% by weight based on the total weight of the composition.

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