SU1196419A1 - Anode device for producing metal powder - Google Patents

Abstract

ANODE DEVICE FOR. FORMULATION OF METAL POWDER, containing an anode chamber, made in the form of a rectangular section of a box, open from the ends and cut in the lower part by a plane, perpendicular to the two side walls and forming an acute angle with the axis of the box, so that the cut line is parallel to the cathode, soluble anode elements in the form of horizontally located s. plates, cathode and current lead, characterized in that, in order to reduce power consumption by reducing the voltage of the anode and cathode across the mezvid, it contains rod protrusions 5-10 mm long, installed along the i edges of the cut off side and rear walls of the chamber, directed inside parap-. It is parallel to the cathode, with the slots located on the cuts of the side walls inclined downwards.

Description

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The invention relates to powder metallurgy, in particular, to devices for producing metal powder by electrolysis of aqueous solutions using soluble anodes.

UeJib of the invention - reducing power consumption by reducing the voltage drop between the anode and the cathode.

Fig, 1 shows the anode device; in fig. 2 shows section A-A in FIG. one.

The anode device consists of an anode chamber 1, inside which the anodes 2 are installed, an electrical conductor 4 is attached to the back wall 3 of camera 1, and isolated rod lugs 6 at an angle to the horizontal plane are fixed along the edges facing the catd, side walls 5.

The device works as follows.

When current is passed between the anode 2 and the cathode, the anode elements are etched. As they dissolve under the action of their own weight, they are gradually lowered down into the narrower part of the anode chamber 1. With one side of the iody touching the conductor 4 attached to the rear wall 3, the edges of the other side slide along inclined lines 964191

Memory 6. The holding protrusions located along the edges of the anode elements do not shield the remaining surface of the anodes, allowing 5 higher currents to pass through the anode device, and allows the anodes and cathode surfaces to be brought closer to a smaller distance between them than in the known device.

The use of the proposed anode device allows continuous, waste-free,

15 is a fully automated process for obtaining metal powders by electrolysis of aqueous electrolyte solutions using soluble anodes at higher process speeds and at lower power consumption. When obtaining, for example, iron powder by electrolysis of an aqueous electrolyte solution containing 60 g / l of FeCS2. with the anodic device with anode elements made of iron-ARMco when the anode current density is 0.2-0.5 A / cm25, the voltage drop decreases by (0.56 + 1.4) V compared to electrolysis under the same conditions x when using a known anode device. This reduces the specific energy consumption by (0.56 1, 4) kWh / kg.

Claims (1)

. ANODE DEVICE FOR. METHOD FOR PRODUCING A METAL POWDER containing an anode chamber made in the form of a rectangular section of the box, open from the ends and cut off in the lower part by a plane perpendicular to the two side walls and making an acute angle with the axis of the box so that the cut line is parallel to the cathode, soluble anode elements in the form of horizontally located. plates, cathode and current lead, characterized in that, in order to reduce power consumption by reducing the voltage drop between the anode and cathode, it contains rod protrusions 5-10 mm long, installed along the _Q edges of the cut side and back walls of the camera ©, directed inward parallel to the cathode, and the protrusions located on the cuts of the side walls are inclined downward.