Method for regenerating organic solvent and method for producing modified wood material

Abstract

To provide chemical treatment agent compositions for modifying wood materials that have less impact on the global environment, or to provide a method for producing modified wood materials using the chemical treatment agent compositions, or to provide a method for regenerating an organic solvent used in the chemical treatment agent compositions, or to provide a method for producing the chemical treatment agent compositions.SOLUTION: According to one embodiment of the present invention, there is provided a chemical treatment agent composition comprising an active ingredient that modifies wood materials and hydrofluoro-olefins that dissolve the active ingredient. The hydrofluoro-olefins may be 3-5 carbon hydrofluoro-olefins or 3-5 carbon hydrochlorofluoro-olefins.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a chemical treatment agent composition for modifying wood materials, a method for producing modified wood materials using the same, a method for regenerating organic solvents, and a method for producing a chemical treatment agent composition. [Background technology]

[0002] Methylene chloride has traditionally been used as an organic solvent for chemical treatment agents for modifying wood materials, such as preservatives, insect repellents, mildew inhibitors, and flame retardants, etc. This is because methylene chloride has good solubility of active ingredients, methylene chloride is not classified as a hazardous material under the Fire Service Act of Japan, and its unit price is low.

[0003] In recent years, due to legal regulations such as the Air Pollution Control Act and the Industrial Safety and Health Act, it has become difficult to use chlorine-based solvents in the modified wood industry. For this reason, attempts have been made to use expensive fluorine-based solvents while recycling them as organic solvents to replace methylene chloride. For example, Patent Document 1 describes a chemical treatment agent composition for modifying wood materials that contains a modifying active ingredient, an organic solvent that dissolves the active ingredient, and an organic salt compound, and has a water content of 5 mass% or less, and describes the use of fluorocarbon solvents such as CFC-11 and HCFC-225, and alternative fluorocarbon solvents such as hydrofluorocarbons (HFCs) and hydrofluoroethers (HFEs) in addition to methylene chloride.

[0004] However, among fluorinated solvents, alternative fluorocarbon solvents such as HFCs and HFEs have a high global warming potential (GWP), raising concerns about their impact on the global environment. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 4723408 Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide a chemical treatment agent composition for modifying wood materials that has little impact on the global environment. Another object is to provide a method for producing modified wood materials using the chemical treatment agent composition. Another object is to provide a method for regenerating an organic solvent used in the chemical treatment agent composition. Another object is to provide a method for producing a chemical treatment agent composition. [Means for solving the problem]

[0007] According to one embodiment of the present invention, there is provided a chemical treatment agent composition comprising an active ingredient for modifying wood materials and an organic solvent containing hydrofluoroolefins for dissolving the active ingredient.

[0008] The hydrofluoroolefins may be hydrofluoroolefins having 3 to 5 carbon atoms or hydrochlorofluoroolefins having 3 to 5 carbon atoms.

[0009] The hydrofluoroolefin may be at least one selected from 1-chloro-3,3,3-trifluoropropene, 1,2-dichloro-3,3,3-trifluoropropene, 1,1-dichloro-3,3,3-trifluoropropene, and 1-chloro-2,3,3-trifluoro-1-propene.

[0010] The chemical treatment agent composition may further contain an organic solvent other than the hydrofluoroolefins.

[0011] The organic solvent other than the hydrofluoroolefins may be methylene chloride.

[0012] According to one embodiment of the present invention, there is provided a method for producing a modified wood material, comprising applying, impregnating or injecting any of the above chemical treatment agent compositions onto a wood material, and volatilizing the organic solvent in the wood material.

[0013] According to one embodiment of the present invention, there is provided a method for regenerating an organic solvent, comprising: applying, impregnating or injecting any one of the chemical treatment agent compositions onto, or into, a wood material; volatilizing the organic solvent in the wood material; and recovering the volatilized organic solvent.

[0014] The method may further comprise adjusting the composition ratio of the hydrofluoroolefins to the organic solvent other than the hydrofluoroolefins in the recovered organic solvent.

[0015] According to one embodiment of the present invention, there is provided a method for producing a chemical processing agent composition, comprising adding an active ingredient to an organic solvent regenerated by the method for regenerating an organic solvent. Effect of the Invention

[0016] According to one embodiment of the present invention, there is provided a chemical treatment agent composition for modifying wood materials, which has a low impact on the global environment. According to one embodiment of the present invention, there is provided a method for producing modified wood materials using the chemical treatment agent composition. According to one embodiment of the present invention, there is provided a method for regenerating an organic solvent used in the chemical treatment agent composition. According to one embodiment of the present invention, there is provided a method for producing a chemical treatment agent composition. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a flow diagram illustrating a method for producing modified wood material. [Diagram 2] FIG. 1 is a flow diagram illustrating a method for regenerating an organic solvent. [Diagram 3] FIG. 1 is a flow diagram illustrating a method for producing a chemical treatment agent composition. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The chemical treatment agent composition, the method for producing a modified wood material using the same, the method for regenerating an organic solvent, and the method for producing a chemical treatment agent composition according to the present invention will be described in detail below. However, the chemical treatment agent composition, the method for producing a modified wood material using the same, the method for regenerating an organic solvent, and the method for producing a chemical treatment agent composition according to the present invention should not be interpreted as being limited to the description of the embodiments and examples shown below.

[0019] As a result of intensive research, the present inventors have found that even when hydrofluoroolefins (HFOs), particularly hydrochlorofluoroolefins (HCFOs), which have a low GWP and little impact on the global environment, are used as organic solvents for chemical treatment agents to modify wood materials, the chemical treatment agents can be dissolved and the organic solvents act as carriers for containing the chemical treatment agents inside the wood materials.

[0020] In one embodiment, the chemical treatment agent composition includes an active ingredient for modifying wood materials and an organic solvent containing hydrofluoroolefins for dissolving the active ingredient. Examples of the active ingredient for modifying wood materials include compounds that function as preservatives, insect repellents, fungicides, antioxidants, dimensional stabilizers, antibacterial agents, anti-termite agents, or flame retardants.

[0021] Specifically, the active ingredients include anionic surfactants such as sodium alkylbenzene sulfonate, sodium polyoxyethylene sulfate, sodium dialkyl succinate sulfonate, and polyoxyethylene polycyclic phenyl ether sulfate; cationic surfactants such as alkyl ammonium halides (e.g., didecyl dimethyl ammonium chloride, trioctyl methyl ammonium chloride), and dihydrogenated beef tallow alkyl ethyl methyl ammonium ethosulfate; alkyl ammonium halides (e.g., tetrabutyl ammonium iodide, tetrabutyl ammonium bromide, tetrabutyl ammonium chloride, and hexadecyl trimethyl ammonium bromide), ... and alkyl ammonium halides (e.g., tetrabutyl ammonium bromide, tetrabutyl ammonium chloride, and hexadecyl trimethyl ammonium bromide). Examples of the quaternary ammonium salt compounds include quaternary ammonium salts such as ammonium phosphates (e.g., tetrabutylammonium hexafluorophosphate, didecyldimethylammonium hexafluorophosphate), alkylammonium borates (e.g., tetrabutylammonium tetrafluoroborate), alkylammonium sulfonates (e.g., tetraethylammonium p-toluenesulfonate, tetraethylammonium trifluoromethanesulfonate), and polyoxyethylene sulfate ammonium salts (e.g., polyoxyethylene sulfate tetrabutylammonium salts); and organometallic compounds such as aluminum alkoxides and aluminum chelates, but are not limited to these.

[0022] As the hydrofluoroolefins, one or more hydrofluoroolefins that function as an organic solvent to dissolve the active ingredient can be used. In addition, since the hydrofluoroolefins are removed by volatilization after the active ingredient is impregnated into the wood material, hydrofluoroolefins that evaporate from the wood material at temperatures in the range of 20°C to 100°C, preferably 20°C to 80°C, and particularly preferably 30°C to 80°C are preferred.

[0023] In one embodiment, the hydrofluoroolefins are at least one hydrofluoroolefin selected from hydrofluoroolefins having 3 to 5 carbon atoms or hydrochlorofluoroolefins having 3 to 5 carbon atoms. Specifically, the hydrofluoroolefins are at least one hydrofluoroolefin selected from 1-chloro-3,3,3-trifluoropropene, 1,2-dichloro-3,3,3-trifluoropropene, 1,1-dichloro-3,3,3-trifluoropropene and 1-chloro-2,3,3-trifluoro-1-propene, but are not limited thereto. In one embodiment, the hydrofluoroolefins may be at least one hydrofluoroolefin selected from hydrofluoroolefins having 3 to 6 carbon atoms or hydrochlorofluoroolefins having 3 to 6 carbon atoms, preferably at least one selected from hydrofluoroolefins having 3 to 5 carbon atoms or hydrochlorofluoroolefins having 3 to 5 carbon atoms, and particularly preferably at least one selected from hydrofluoroolefins having 3 carbon atoms or hydrochlorofluoroolefins having 3 carbon atoms.

[0024] 1-Chloro-3,3,3-trifluoropropene (HFO-1233zd) has a boiling point of 19°C for trans-1-chloro-3,3,3-trifluoropropene (HFO-1233zd(E)) and 39°C for cis-1-chloro-3,3,3-trifluoropropene (HFO-1233zd(Z)). 1,2-Dichloro-3,3,3-trifluoropropene (HCFO-1223xd) has a boiling point of 60°C for trans-1,2-dichloro-3,3,3-trifluoropropene (HCFO-1223xd(E)). Also, the boiling point of 53°C for cis-1,2-dichloro-3,3,3-trifluoropropene (HCFO-1223xd(Z)). The boiling point of 1,1-dichloro-3,3,3-trifluoropropene (HCFO-1223za) is about 54°C. 1-Chloro-2,3,3-trifluoro-1-propene (HCFO-1233yd) is trans-1-chloro-2,3,3-trifluoro-1-propene (HCFO-1233yd(E)) has a boiling point of 48°C. Also, cis-1-chloro-2,3,3-trifluoro-1-propene (HCFO- The boiling point of 1233yd(Z) is 54°C. These hydrofluoroolefins have a very low GWP (less than 10) and a small environmental impact.

[0025] In one embodiment, the hydrofluoroolefins are Opteon (registered trademark) SF01, Opteon (registered trademark) SF05, Opteon (registered trademark) SF10, Opteon (registered trademark) SF33, Opteon (registered trademark) SF79, and DR CFX70 (manufactured by Mitsui-Chemours Fluoroproducts Co., Ltd.). The boiling point of Opteon (registered trademark) SF01 is 32° C., the boiling point of Opteon (registered trademark) SF05 is 39° C., the boiling point of Opteon (registered trademark) SF10 is 110° C., the boiling point of Opteon (registered trademark) SF33 is 33° C., the boiling point of Opteon (registered trademark) SF79 is 48° C., and the boiling point of DR CFX70 is 71° C. These hydrofluoroolefins have a very low GWP and a small environmental load.

[0026] In one embodiment, the chemical treatment agent composition may further include an organic solvent other than hydrofluoroolefins. The organic solvent other than hydrofluoroolefins may be one or more of the known organic solvents used in chemical treatment agent compositions for modifying wood materials. For example, aliphatic hydrocarbons such as n-hexane, n-heptane, kerosene, etc.; aromatic hydrocarbons such as benzene, toluene, xylene, etc.; chlorinated hydrocarbons such as methylene chloride, trichloroethylene, etc.; fluorocarbon solvents such as CFC-11, HCFC-225, etc.; alternative fluorocarbon solvents such as HFC, HFE, etc.; nitrohydrocarbons such as nitromethane, nitroethane, etc.; nitriles such as acetonitrile, etc.; ketones such as acetone, methyl ethyl ketone, etc.; esters such as methyl formate, ethyl formate, etc.; glycol ether derivatives such as tetrahydrofuran, propylene glycol monopropyl ether, dipropylene glycol monomethyl ether acetate, etc.; nitrogen-containing cyclic compounds such as n-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, etc. may be mentioned, but are not limited to these. In one embodiment, the chemical treatment agent composition may contain methylene chloride as an organic solvent other than hydrofluoroolefins. From the viewpoint of suppressing the impact on the global environment, it is preferable that the organic solvent other than hydrofluoroolefins is significantly less than the hydrofluoroolefins contained in the chemical treatment agent composition. For example, the content of the organic solvent other than hydrofluoroolefins is 50% by weight or less, preferably 20% by weight or less, relative to 100% by weight of the organic solvent contained in the chemical treatment agent composition.

[0027] In one embodiment, the active ingredient is contained in an amount of 0.01% by weight to 5% by weight, and preferably 0.1% by weight to 2% by weight, relative to 100% by weight of hydrofluoroolefins. By adjusting the content of the active ingredient within this range, good penetration of the active ingredient into wood and sufficient effect of the chemical treatment agent composition can be obtained, and the effect of promoting recovery of hydrofluoroolefins, which are organic solvents, can be obtained.

[0028] In one embodiment, the chemical treatment agent composition preferably does not substantially contain water. When a chemical treatment agent composition containing water is injected into a wood material, the moisture content of the wood material increases significantly, causing dimensional changes in the wood material. For this reason, when the chemical treatment agent composition contains water, it is preferable that the content is such that the dimensional changes in the wood material are not caused, and the water content is 5% by weight or less, preferably 3% by weight or less, relative to 100% by weight of the chemical treatment agent composition.

[0029] The chemical treatment agent composition according to one embodiment of the present invention having the above-mentioned configuration can modify wood materials while reducing the impact on the global environment.

[0030] [Manufacturing method of modified wood materials] The above-mentioned chemical treatment composition can be used to produce modified wood materials. 1 is a flow diagram illustrating a method for producing a modified wood material. The method for producing a modified wood material includes, for example, a step of drying a wood material under reduced pressure (S101), a step of applying, impregnating or injecting a chemical treatment agent composition into the wood material (S103), and a step of volatilizing an organic solvent in the wood material (S105).

[0031] Step S101 is a step of drying the wood material in a reduced pressure environment of -0.001 MPaG to -0.101 MPaG in gauge pressure, which is a relative pressure to atmospheric pressure. Step S101 reduces the moisture content of the wood material, making it easier for the chemical treatment agent composition to penetrate, and also making it possible to suppress dimensional fluctuations in the wood material after production due to moisture contained in the wood material. The drying temperature for the wood material can be 10°C to 50°C, and is preferably 10°C to 40°C. Note that when sufficiently dried wood is used, step S101 is an optional step.

[0032] Step S103 is a step of contacting the wood material with the chemical treatment agent composition, which is carried out by coating, impregnation or injection. The contact between the wood material and the chemical treatment agent composition can be carried out under atmospheric pressure. The temperature at which the chemical treatment agent composition is contacted with the wood material is 10°C to 100°C, preferably 20°C to 50°C. In one embodiment, it is preferable to contact the chemical treatment agent composition with the wood material under pressure. For example, the wood material coated with the chemical treatment agent composition may be pressurized, or the chemical treatment agent composition may be impregnated into the wood material under pressure. It is preferable to pressurize the wood material at 0.1 MPaG to 1.0 MPaG. The pressurization time is not particularly limited as long as the wood material contains a predetermined amount of the chemical treatment agent composition, and can be set appropriately.

[0033] Step S105 is a step of volatilizing the organic solvent in the wood material to arrange or fix the active ingredient in the wood material. Step S105 is a step of removing at least a part of the organic solvent in the wood material, and is not necessarily intended to remove all of the organic solvent in the wood material, but it is preferable that all of the organic solvent in the wood material is removed. For example, it is preferable that 90% by weight or more of the organic solvent in the wood material is removed, more preferably 95% by weight or more, and particularly preferably 99% by weight or more. The method for removing the organic solvent is not particularly limited, and examples thereof include, but are not limited to, a drying method by heating, hot air drying, drying under reduced pressure, or a drying method in which the material is left in the air atmosphere. The temperature for removing the organic solvent is 20°C to 100°C, and preferably 30°C to 80°C. The time for removing the organic solvent is not particularly limited as long as a predetermined amount of the organic solvent is removed from the wood material, and can be set appropriately.

[0034] By using the chemical treatment agent composition of the present invention, it is possible to produce modified wood materials with reduced impact on the global environment.

[0035] [How to regenerate organic solvents] In the above-mentioned manufacturing method of modified wood material, the organic solvent removed from the wood material contains hydrofluoroolefins, so it is preferable to recover and reuse it. Figure 2 is a flow diagram explaining a method for regenerating an organic solvent. The method for regenerating an organic solvent includes, for example, a step (S201) of recovering the volatilized organic solvent, a step (S203) of filtering the recovered organic solvent, a step (S205) of purifying the filtered organic solvent, and a step (S207) of adjusting the composition of the purified organic solvent.

[0036] Step S201 is a step of recovering the volatilized organic solvent, and is a step of recovering a gas containing the organic solvent, or agglomerating the gas containing the organic solvent to recover a liquefied organic solvent. For example, in step S201, the gas containing the organic solvent may be stored in a tank, or the gas containing the organic solvent may be supplied to the purification step without being stored. Alternatively, the gas containing the organic solvent may be agglomerated. The organic solvent may be liquefied in a vessel and stored in a tank, or the liquefied organic solvent may be supplied to a purification process. By liquefying and recovering the organic solvent, it can be transported to a regeneration facility outside the modified wood material production plant, and the transportation cost can be reduced.

[0037] Step S203 is a step of filtering the recovered organic solvent to remove solid components such as dirt and dust contained in the organic solvent. For example, the organic solvent can be filtered using a mesh or a filter. Note that step S203 is an optional step and does not need to be performed if it does not interfere with supplying the organic solvent to the purification step.

[0038] Step S205 is a step for removing components and moisture derived from wood materials that are mixed into the organic solvent during the production of the modified wood material, and includes, for example, a distillation step and a dehydration step. Therefore, it is not necessary to completely separate the hydrofluoroolefins contained in the organic solvent from the organic solvent other than the hydrofluoroolefins. In addition, even when the organic solvent contains two or more types of hydrofluoroolefins or two or more types of organic solvents other than the hydrofluoroolefins, it is not necessary to isolate each component. Note that, if necessary, the components contained in the organic solvent may be isolated and recovered. In addition, the purified organic solvent may be brought into contact with a porous body such as zeolite or activated carbon to perform a dehydration treatment.

[0039] Step S207 is a step of adjusting the composition in order to reuse the organic solvent. For example, the missing components may be added so that the purified organic solvent has a predetermined composition ratio, or the components of the organic solvent isolated and recovered may be mixed so that the predetermined composition ratio is obtained. Note that step S207 is an optional step, and is not performed when the organic solvent is composed of one type of hydrofluoroolefin. In addition, the regenerated organic solvent may have the same composition as the organic solvent contained in the chemical treatment agent composition used in the production of the modified wood material, or may have a different composition. The organic solvent regenerated with a different composition may be used as a solvent for a different chemical treatment agent composition.

[0040] By using the method for regenerating organic solvents according to the present invention, it is possible to reduce the impact on the global environment and continuously produce modified wood materials.

[0041] [Method of manufacturing chemical treatment agent composition] A chemical treatment agent composition can be produced using the regenerated organic solvent. FIG. 3 is a flow diagram illustrating a method for producing a chemical treatment agent composition. The method for producing a chemical treatment agent composition includes a step (S301) of adding an active ingredient to the regenerated organic solvent. The produced chemical treatment agent composition may have the same composition as the chemical treatment agent composition used in the method for producing a modified wood material described above, or a different chemical treatment agent composition may be produced by adding a different active ingredient.

[0042] By using the method for regenerating organic solvents according to the present invention, it is possible to reduce the impact on the global environment and continuously produce modified wood materials. EXAMPLES

[0043] The above-mentioned chemical treatment agent composition for modifying wood materials according to the present invention will be described in detail with reference to specific examples thereof and examples of producing modified wood materials.

[0044] [Example] <Preparation of Chemical Treatment Agent Composition> The chemical treatment agent compositions of the examples were prepared by mixing and dissolving the active ingredients in the organic solvents listed in Table 1. The active ingredients were dissolved in the organic solvent to form a uniform solution, which was marked as "good." TBAB stands for tetrabutylammonium bromide. HCFO-2 546mzxzz indicates 3-chloro-1,1,1,6,6,6-hexafluoro-2,4-hexadiene. [Table 1]

[0045] <Production of modified wood materials> 50 g of the chemical treatment composition prepared above was placed in a glass sample bottle (50 cc, outer diameter 40 mm). A 5 mm thick, 0.8 g cedar wood piece was placed in a pressure-resistant sealed container and dried under reduced pressure at 1 kPa for 4 hours. After the wood piece was released to atmospheric pressure, it was immersed in the chemical treatment composition at 25°C for 1 hour. After immersion, the wood piece removed from the chemical treatment composition was left to dry at 25°C and atmospheric pressure, and the weight change (%) of the wood piece over time was measured. After 64 hours of standing, the wood piece was placed in a pressure-resistant sealed container and dried under reduced pressure at 1 kPa for 2 hours to prepare the modified wood material of the example. The weight change in the modified wood material of each example is shown in Table 2. [Table 2]

[0046] [Reference example] Modified wood materials were prepared in the same manner as in the Examples, except that only an organic solvent was used instead of the wood treatment solution prepared in the Examples. In preparing the modified wood materials, the weight change (%) of the wood pieces over time was measured based on the weight of the wood pieces before immersion. After 40 hours of standing, the wood pieces were placed in a pressure-resistant sealed container and dried under reduced pressure at 1 kPa for 2 hours. The weight changes in the modified wood materials of each Reference Example are shown in Table 3. [Table 3]

[0047] From the results of the Examples and Reference Examples, it was found that the organic solvent volatilized from the wood pieces, while the active ingredient remained inside the wood pieces. It was also found that when HCFO-1233yd, HCFO-1233zd, and HCFO-1223xd were used as the organic solvent, they volatilized in a shorter time than HCFO-2546mzxzz. In both the Examples and Reference Examples, the wood pieces did not change in size after drying, and no discoloration occurred.

Claims

1. A chemical treatment agent composition comprising an active ingredient for modifying wood materials and an organic solvent containing hydrofluoroolefins for dissolving the active ingredient.

2. 2. The chemical treatment agent composition according to claim 1, wherein the active ingredient for modifying the wood material comprises an anionic surfactant, a cationic surfactant, a quaternary ammonium salt compound, and an organometallic compound.

3. 2. The chemical processing agent composition according to claim 1, wherein the hydrofluoroolefin is a hydrofluoroolefin having 3 to 5 carbon atoms or a hydrochlorofluoroolefin having 3 to 5 carbon atoms.

4. 2. The chemical processing agent composition according to claim 1, wherein the hydrofluoroolefin is at least one selected from 1-chloro-3,3,3-trifluoropropene, 1,2-dichloro-3,3,3-trifluoropropene, 1,1-dichloro-3,3,3-trifluoropropene, and 1-chloro-2,3,3-trifluoro-1-propene.

5. The chemical processing agent composition according to any one of claims 1 to 3, further comprising an organic solvent other than hydrofluoroolefins.

6. 4. The chemical processing agent composition of claim 3, wherein the organic solvent other than hydrofluoroolefins is methylene chloride.

7. 6. The chemical processing agent composition according to claim 1, wherein the water content is 5% by weight or less based on 100% by weight of the chemical processing agent composition.

8. A method for treating a wood material comprising the steps of: applying, impregnating or injecting the chemical treatment agent composition according to any one of claims 1 to 7 onto the wood material; and volatilizing the organic solvent in the wood material; A method for producing a modified wood material, comprising:

9. The method for producing a modified wood material according to claim 8, further comprising volatilizing at least 90% by weight of the organic solvent in the wood material.

10. Applying, impregnating or injecting the chemical treatment agent composition according to any one of claims 1 to 7 onto a wood material; volatilizing the organic solvent in the wood material; recovering the volatilized organic solvent; The method for regenerating an organic solvent comprises the steps of:

11. The method for regenerating an organic solvent according to claim 10, further comprising volatilizing at least 90% by weight of the organic solvent in the wood material.

12. The method for regenerating an organic solvent according to claim 10, further comprising a step of filtering the recovered organic solvent.

13. The method for regenerating an organic solvent according to claim 10, further comprising a step of purifying the recovered organic solvent.

14. adjusting a composition ratio of the hydrofluoroolefins to an organic solvent other than hydrofluoroolefins in the recovered organic solvent; The method for regenerating an organic solvent according to claim 10, further comprising:

15. Adding an active ingredient to the organic solvent regenerated by the method for regenerating an organic solvent according to claim 14; A method for producing a chemical treatment agent composition comprising:

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