AT74597B - Process for the production of chemically pure soluble silica. - Google Patents

Process for the production of chemically pure soluble silica.

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Publication number
AT74597B
AT74597B AT74597DA AT74597B AT 74597 B AT74597 B AT 74597B AT 74597D A AT74597D A AT 74597DA AT 74597 B AT74597 B AT 74597B
Authority
AT
Austria
Prior art keywords
production
chemically pure
soluble silica
pure soluble
silica
Prior art date
Application number
Other languages
German (de)
Original Assignee
Elektro Osmose Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elektro Osmose Ag filed Critical Elektro Osmose Ag
Application granted granted Critical
Publication of AT74597B publication Critical patent/AT74597B/en

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Description

  

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 Weise geschehen Die Kieselsäure wird in ein als Kathode dienendes Gefäss gegeben, während die Anode mit einem Diaphragma umgeben wird, das vorteilhaft aus Pergamentpapier bestehen kann. Beim Stromdurchgangs wandern die Säurereste durch das Diaphragma aus dem Katllodonraum in den Anodenraum, während sich die lösliche Kieselsäure durchaus nicht verändert. Proportional mit dem Herauswandern der Säurereste kann die Spannung erhöht werden, damit auch die letzten Spuren von Säure schnell entfernt werden. 



   Die so gewonnene Kieselsäure ist vollkommen chemisch rein und bei geeigneter Aufbewahrung haltbar. Sie besitzt ein niedriges Molekulargewicht und unterscheidet sich ausser durch ihre hohe Reinheit auch durch diese Eigenschaft vorteilhaft von der nach den üblichen Verfahren hergestellten Kieselsäure.



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 The way it is done The silica is placed in a vessel that serves as a cathode, while the anode is surrounded by a diaphragm, which can advantageously be made of parchment paper. When the current passes through it, the acid residues migrate through the diaphragm from the Katllodon space into the anode space, while the soluble silica does not change at all. The voltage can be increased proportionally as the acid residues migrate out, so that the last traces of acid can also be removed quickly.



   The silica obtained in this way is completely chemically pure and can be kept if stored appropriately. It has a low molecular weight and, in addition to its high purity, it also differs advantageously from the silica produced by conventional processes because of this property.

Claims (1)

PATENTANSPRÜCHE : 1. Verfahren zur Herstellung chemisch reiner löslicher Kieselsäure,'dadurch gekennzeichnet, dass man Alkalisilikatlösung in dem Anodenraum einer mit einem Diaphragma von solchem Potential ausgestatteten Zelle, welche das gleichzeitige Hindurchwandern von Alkali und Kieselsäure verhindert, dem elektrischen Strom unterwirft. erfahren nach Anspruch 1, gekennzeichnet durch die Anwendung perforierter Elektroden, von denen die Kathode an der Innenfläche, dio Anode an der Aussenfläche des Diaphragmas anfliegt. PATENT CLAIMS: 1. A method for the production of chemically pure soluble silica, 'characterized in that one alkali silicate solution in the anode compartment of a cell equipped with a diaphragm of such potential, which the simultaneous migration of Alkali and silica prevents being subjected to electric current. experience according to claim 1, characterized by the use of perforated Electrodes, of which the cathode flies to the inner surface and the anode to the outer surface of the diaphragm. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass dem dort gekenn- zeichneten Verfahren eine anodische Roinigung nachfolgt. 3. The method according to claim 1, characterized in that the method identified there is followed by anodic cleaning.
AT74597D 1913-04-14 1914-04-14 Process for the production of chemically pure soluble silica. AT74597B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE74597X 1913-04-14

Publications (1)

Publication Number Publication Date
AT74597B true AT74597B (en) 1918-09-10

Family

ID=5636831

Family Applications (1)

Application Number Title Priority Date Filing Date
AT74597D AT74597B (en) 1913-04-14 1914-04-14 Process for the production of chemically pure soluble silica.

Country Status (1)

Country Link
AT (1) AT74597B (en)

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