SU61931A1 - Electrolyzer for producing metallic magnesium - Google Patents

Description

Usually during electrolysis of carpalte or magnesium chloride, large quantities of sludge are obtained, which sediments on its bottom. Thus, for 1 kg of magnesium, it is equivalent to 0.3–0.6 Ksgala:,; a, consisting mainly of oxide of magic in a very diversial and, therefore, actnvi state. Its removal is difficult and difficult -; ka operation. Together with the sludge, part of the electrolyte is inevitably captured, which is thus lost to production, which :: goes to a node where the raw material is consumed.

In order to utilize the oxide mag; G1; : an electrolysis cell equipped with an additional anode, rasologeinii; in the center of the paklontsy bottom. The chlorine released by this anode is chlorinated by the gaps, and the resulting chloride:, arii; n L is returned to the electrolyte.

The drawing shows the proposed electrolyzer.

In the center of the vaiia with an inclined diischegle / axle 2 installed and an additional 3 anodes. The cathode 4 is located inside the hood 5 used to collect chlorine. Sludge 6, which precipitates during electrolysis, slides horizontally along the bottom of the bottom and horizontally rasiololine anode 3, which is facilitated by the circulation of electrolyte.

Chlorine, releasing 1c with an additional anode, passage through the SECO of the sludge, chlorinates it. The resulting magnesium chloride is transferred to the electrolyte; magic is released at cathode 4.

A carbonaceous reducing agent is periodically charged into the bath (for example, coke, etc.), which is either in pure form or previously used in the electrolyte (eluminaires (carnallant, calcium chloride fluoride, or their mixtures, etc.).

An additional anode 3 can enter into the general block of anodes or be isolated from it, having a separate current supply. In this case, the strength of the current passing through it is controlled by the device intended for this device by switching on the appropriate resistance.

Subject invention

An electrolyzer for producing metallic magnesium, characterized in that, in order to chlorinate the magnesium oxide sludge, an additional anode located in the center of the inclined bottom of the electrolyzer is used.