JPS5895516A - Solution separating device - Google Patents

Abstract

PURPOSE:To provide a soln. separating device which separates >=2 kinds of solns. with high efficiency and is easy to manufacture by constituting the same in such a way that permeable films are oscillated not only by the applications of a high frequency voltage but by magnetic fields as well. CONSTITUTION:A dielectric permeable film 1 which is hydrophobic to alcohols and is repellent to water and a water permeable conductive sheet 2 are adhered tightly to make a composite sheet A. Such sheets A, A are laminated on both sides of a porous spacer 3, and a part 30 of the spacer 3 is projected from the sheets A, A for the purpose of removing separated liquid. The parts except the surfaces of the films 1 and the part 30 are sealed with films 4, whereby a soln. separating unit B is formed. Plural pieces of such unit B are contained in a soln. supplying case 5, and the parts 30 of the respective units B are led out watertightly from the bottom walls of the respective cases. Further, a high frequency power source E is connected via lead wires to the sheets 2, 2 of the respective units B, and electric coils 7 are wound around the units B to generate magnetic fields as well as to make contribution to holding of the clearances between the units B and B.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solution separation device, and is used, for example, to separate alcohol from an aqueous alcohol solution.

When two types of mutually compatible liquids are mixed, the molecules of the two types of liquids bond with a certain bonding energy. If a membrane can be used as a permeable membrane and enough energy can be supplied to the membrane surface to break the molecular bonds mentioned above, then the bonds can be broken.
Any one of the above liquids (Liquid A) can be separated through the pores of the porous membrane.

The lead inventor of this patent application is the person who provided the above idea,
Targeting an aqueous solution of ethyl alcohol, one side of a porous fluororesin membrane that is hydrophobic to alcohol and water repellent is made conductive by surface treatment, and a porous vinylidene fluoride membrane is laminated to this, and the conductive layer is heated at 100 to 1ooOKHz. , 200～
Ethyl alcohol was successfully separated by applying a high frequency voltage of 250V. In this case, porous fluororesin membrane 1. Porous vinylidene fluoride films act as electrical capacitors, and when the capacitor is charged with electric charge and the charging voltage reaches a certain voltage (discharge start voltage), discharge occurs, and the voltage drop due to this discharge reaches the discharge stop voltage. When the frequency reaches 10 to 10 of the above-mentioned charging frequency, discharging stops and charging starts again.
It was confirmed that five times as many micro-oscillation waves were generated and that the above-mentioned molecular bonds were broken by the micro-oscillation waves.

An object of the present invention is to provide a solution separation apparatus for industrially implementing the solution separation method with improved separation efficiency.

That is, the solution separation device according to the present invention includes a high-frequency voltage section that allows water to pass through one side of a hydrophobic dielectric permeable membrane for one liquid to be separated from a mixed solution of two or more liquids that are mixed with each other. Composite sheets with electrically conductive sheets adhered to them are laminated on both sides of a porous spacer, and a part of the porous spacer protrudes from between the composite sheets, so that the permeable membrane surface and part of the porous spacer are exposed in a watertight manner. The unit is housed in a solution supply case, the porous spacer protrusion of the unit is watertightly led out from the case wall, and an electric coil is added to the unit.

The present invention will be explained below with reference to the drawings.

FIG. 1A shows a cross-sectional view of the solution separation unit used in the present invention, and FIG. 1B shows a bb-b cross-sectional view in FIG. 1A. is alcohol.

In FIG. 1A and FIG. 1B, 1 is a dielectric permeable film that is hydrophobic to alcohols and water repellent to water, such as vinylidene fluoride, polytetrafluoroethylene, polyester, etc. Porous membranes such as polyethylene and vinyl chloride can be used. 2 is a conductive sheet that allows water to pass through, and is provided with slits 20 as shown in FIG. 2A or FIG. 2B or holes 200 as shown in FIG. 2C to impart water permeability. There is.

The dielectric permeable film 1 and the conductive sheet 2 are brought into close contact with each other to form a composite sheet A.

3 is a porous spacer, on both sides of which the above composite seam) A)
, A are stacked. The porous spacer 3 is necessary for insulation between the conductive sheets 2.2 of the composite sheets A and A and for taking out the separated liquid, and can be made of porous Teflon, porous vinyl chloride, or the like. A part 30 of this porous spacer 3 is provided with a composite sheet (A) for taking out the separated liquid.
It protrudes from between A. Reference numeral 4 denotes a watertight coating, and the area other than the permeable membrane surface and the porous spacer protrusion is sealed by this coating 4.

FIG. 3 shows a solution separation device according to the present invention.

In FIG. 3, reference numeral 5 denotes a solution supply case, in which a solution supply port 51 and a discharge port 52 are provided. Reference numeral B denotes the solution separation unit described above, and a plurality of cylinders are housed in the case 5, and the spacer protrusion 3o of each unit B is led out from the bottom wall of the case in a watertight manner. The lower surface of each unit B is fixed to the bottom surface of the case, and a backing 6 is loaded between the lower end of each unit and the inner surface of the lower end of the case side wall, and the backing 6 makes the spacer projection 30 watertight. Derivation is guaranteed.

E is a high frequency power source, and the conductive sheet 2 of each unit) B
．． 2 via a lead wire. Reference numeral 7 denotes an electric coil wound around each unit (B), which contributes to maintaining the gap between the units (B) and B in addition to generating a magnetic field.

In FIG. 3, the dielectric transparent film 1.1 of each unit) B acts as an electrical capacitor for high frequency voltage,
Moreover, when the charging voltage reaches a certain voltage, discharge occurs, so charging and discharging are repeated at a frequency regulated by the capacitance and specific resistance of the dielectric film and the discharge voltage, and the charging and discharging frequency is controlled by the high frequency power supply. It becomes 10 to 10 times the frequency. Due to such repeated charging and discharging, microwave vibrations are generated on the surface of the dielectric transparent film of each unit. This microwave vibration can be made even more intense by imparting a capacitor function to the conductive sheet itself (for example, by using a Teflon porous membrane with conductivity imparted by radicalization on one side as the conductive sheet).

Further, 4-Units) A high frequency current is passed through the coil 7 of unit B, generating a high frequency magnetic field, and the transmission membranes 1, 1 of each unit B also vibrate due to the high frequency electromagnetic force based on this high frequency magnetic field.

Therefore, each unit) OH in contact with the permeable membrane 1.1 of B) 3)
a・H20] p−qH20 is ((OH5OH20H)g−)5・H2O and (LH
20, ((OH50H20H)3)3・H
2O permeates through the permeable membrane. In this case, since the permeable membrane is water repellent, there is no permeation of qH26. Therefore, 92.7 vo/% ethyl alcohol can be taken out from the protrusion of the porous spacer of each unit.

In the above, the separation efficiency can be increased by increasing the number of laminated composite sheets A in unit B as shown in FIG. still,
In FIG. 4, numeral 31 is a porous insulating spacer for electrically insulating between the composite scenes h and h, and it can be made of the same material as the central porous spacer 3.

The solution separation device of the present invention is capable of separating organic solvents such as alkodo from a mixed solution of water and an alcohol such as methyl alcohol, ethyl alcohol, or isopropyl alcohol, or an organic solvent from a mixed solution of water and an organic solvent such as dimethyl sulfoxide.
Can be used to separate

The solution separation device according to the present invention has the configuration as described above, and the permeable membrane is vibrated by a magnetic field in addition to the application of a high-frequency voltage, so that the solution separation method described above can be carried out with high separation efficiency.

Furthermore, since the unit has a laminated structure of a composite sheet and a porous spacer, it is easy to manufacture.

[Brief explanation of the drawing]

FIG. 1A is an explanatory diagram showing a unit used in the present invention, FIG. 1B is an explanatory diagram of a cross section taken along the line B in FIG. 1A, and FIGS. FIG. 3 is an explanatory diagram showing various examples of conductive sheets used in the present invention, FIG. 3 is an explanatory diagram showing a solution separation device according to the present invention, and FIG. 4 is an explanatory diagram showing court precedents for the unit used in the present invention. In the figure, 1 is a dielectric permeable film, 2 is a conductive sheet, and A
3 is a composite sheet, 3 is a porous spacer, 4 is a watertight coating, B is a unit, 5 is a solution supply case, and 7 is an electric coil. 711flA 3δ 1mB YO 0 73 (IJ/0 74th group procedural amendment (spontaneous) January 9, 1980 Kazuo Wakasugi, Commissioner of the Patent Office 1, Indication of case Patent Application No. 191608 1988 2. Invention Name of Solution Separator 3, Relationship with the person making the amendment Patent applicant address 1-1-2 Shimohozumi, Ibaraki City, Osaka Name (39
6) Nitto Electric Industry Co., Ltd. Representative: Kamigata 3rd Department 4, Agent address: 15-11 Mondosho, Nishinomiya City, Hyogo Prefecture (2) Information on the detailed explanation of the invention in the specification 6 Contents of amendment (1) of the specification The description in the Scope of Claims column will be amended as shown in the attached sheet. (2) From page 2, line 17 to page 3, line 2 of the specification, “
The phrase ``Due to repeated charging and discharging of the capacitor in question'' has been corrected to ``Due to repeated charging and discharging.'' (3) On page 3, line 9 to line 13 of the specification, the phrase ``composite sheet'' mixed with each other was replaced with ``composite sheet''.
A transparent composite sheet that generates microwave vibrations by applying a high-frequency voltage. (4) On page 6, line 7 to line 10 of the specification, [and the charging and discharging pressure is repeated...]
I am correcting the statement to "repeat charging and discharging."・) From page 6, line 19 to page 7, line 2 of the specification, “
Furthermore, there is vibration of each unit B. ” will be deleted. (6) In the 6th line of page 7 of the specification, the phrase "divided" should be replaced by "divided," and these divided molecules are further separated by the high-frequency electromagnetic field generated from the coil 7 due to the difference in dielectric constant. Among these molecules, cleavage is promoted and corrected. (7) In the 6th and 7th lines of page 8 of the specification, the phrase ``because it vibrates...'' of a high-frequency voltage'' was replaced with ``microwave vibration of a transparent membrane.'' This is because the solution molecules separated by the coil are further separated by the electromagnetic field generated by the coil.'' (1) Transparent sheets that generate microwave vibrations by applying a high-frequency voltage are laminated on both sides of the porous spacer,
and a part of the porous spacer protrudes from between the sheets,
A unit with a watertight coating so that the permeable membrane surface and a part of the porous spacer are exposed is housed in a solution supply case, and the protruding part of the porous spacer of the unit is led out from the case wall in a watertight manner. A solution separation device characterized by the addition of an electric coil.

Claims (1)

[Claims] (1) A water-permeable conductive sheet for applying a high-frequency voltage is closely attached to one side of a dielectric permeable membrane that is hydrophobic to a type of liquid to be separated from a mixed solution of two or more liquids that are mixed with each other. A solution supply case is a unit in which composite sheets are laminated on both sides of a porous spacer, a portion of the porous spacer protrudes from between the composite sheets, and a watertight coating is provided so that the permeable membrane surface and a portion of the porous spacer are exposed. The protruding part of the porous spacer of the above unit is kept watertight from the case wall.
A solution separation device characterized by the fact that the unit is equipped with an electric coil.