DE377218C - Method and device for making soap by electrolysis - Google Patents

Description

GERMAN EMPIRE

ISSUED JUNE 14, 1923

REICH S PATENT OFFICE.

PATENT LETTERING

CLASS 23 e GROUP 1

(S ₅ S ₅ S ₅ IV \ 2 ₃ e)

Dr. Albrecht Sandreczki in Bad Kreuznach.

Method and device for making soap by electrolysis. Patented in the German Empire on September 3, 1920.

The invention relates to a method and a device for the production of soaps by electrolysis of a mixture of fats or fatty acids and salt solutions.
In electrolytic soap production, the cathode is washed around with an emulsion of salt solution or a mixture of salt solutions with fat or fatty acids. The anode, which is through a diaphragm ίο of. When the cathode is disconnected, it is in contact with saline solution (or a mixture of saline solutions). The electrolytically deposited metal (preferably alkali metal) forms a lye with the water in the salt solution, through which the fat or fatty acid is saponified with the addition of heat.

The hydrogen released in the process poses a danger of oxyhydrogen. This will be after the invention avoided by the fact that

end of the electrolytic process of the free the resulting hydrogen is diverted with the heating steam required for heating. Of the Hydrogen is then used with or without steam to harden the fat or in some other way.

The gases produced at the anode (preferably chlorine) are released without mediation intercepted by steam and recovered. ίο It is known by electrolysis one Mixture of salt solutions and fat to make a soap. According to the present Invention, the process becomes more economical and even possible because it is through Avoidance of the formation of oxyhydrogen is harmless and the resulting gases, especially the valuable, electrolytically pure hydrogen is further used for hardening the fat will.

The device used to carry out the process essentially consists from an airtight container with roof-like collecting devices for the withdrawing heating steam and the electrodeposited gases, from one Stirring screw in a container formed by the cathode and heated by a heating coil is arranged, while the anode, separated from the cathode by a diaphragm, is arranged in the outer container.

An exemplary embodiment of the direction used to carry out the method is in the drawing in Fig. 1 in a longitudinal section, in Fig. 2 in a plan view illustrated.

The container α can be heated by a heating coil b arranged in the interior and has an outer annular space c which is separated from the inner space d by the diaphragm e . (The outer annular space can also be built so that it has interruptions through which the interior is directly connected to the outer wall of the container.) In the annular space c is the for example cylindrical anode /, while in space d is one Similar shape cathode g is located.
In the interior of the container α enclosed by the cathode g , a stirring screw k is rotatably mounted, which is moved by a drive.

When using the device, the interior space d is first filled with water vapor _{to displace the atmospheric air, then a SaIz-;} solution or a mixture of suitable salt solutions brought, partially decomposed electrolytically, and then added the amount of fat or fatty acid intended for processing. The outer annulus c is charged with a suitable salt solution. As a result of the movement of the stirring screw k , the mass in the container d is driven upwards over the edge of the cathode in order to circulate through the space under the cathode g between g and the diaphragm e back into the interior to the stirring screw k . The sich absondern.de hydrogen is collected with the heating steam in the roof-like attachments of the lid of the container α and discharged, likewise without water vapor the gases separated at the anode via the outer annulus. The heating coil b, which can be used as a cathode and can replace g if it is appropriately designed, carries at its lower end a spiral approach which runs above the bottom of α and is provided with sieve-like outflow openings for the heating steam.

This approach can, if necessary, replace the heating coil b with a feed pipe through the bottom of α.

Through appropriately set up openings and closures on the device the hydrochloric and fatty or fatty acid substitute regulated, samples can be used to determine the Degree of saponification removed, water, salt, etc. added. Otherwise are for gas and liquid closures, especially to prevent the gases from flowing back out of the To avoid discharge pipes, the usual safety and control devices are attached.

Claims (2)

Patent-to sayings: . i. Process for making soap by electrolysis of a mixture of Salt solutions and fat or fatty acid, characterized in that the hydrogen separated by the electrolysis for Avoidance of oxyhydrogen formation and further utilization (fat hardening, etc.) with the heating steam required to heat the mixture is discharged oxygen-free. 2. Device for carrying out the method according to claim 1, characterized in that that for the collection of the hydrogen and the withdrawing heating steam on the lid of the electrolyte container Roof-like essays are provided. For this purpose ι sheet of drawings.