Unlock instant, AI-driven research and patent intelligence for your innovation.

An electrolytic cell for measuring the decomposition voltage of iron oxides in molten slag

A technology for decomposing voltage and iron oxide, applied in the field of electrolytic cells, can solve the problems of unstable measurement results and difficulty in decomposing voltage, reduce the influence of electrode area and overpotential, and eliminate leakage current or other non-oxygen ions. Effects of interference, strong resistance to slag erosion

Inactive Publication Date: 2016-08-10
WUHAN UNIV OF SCI & TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is applied to the determination of the decomposition voltage of a certain compound in the high-temperature electrolyte melt. Due to the existence of high-temperature electrolyte melt viscosity is generally much higher than the normal temperature aqueous solution and various interferences, it is difficult to determine the decomposition voltage under high temperature conditions. The results are often unstable

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An electrolytic cell for measuring the decomposition voltage of iron oxides in molten slag
  • An electrolytic cell for measuring the decomposition voltage of iron oxides in molten slag
  • An electrolytic cell for measuring the decomposition voltage of iron oxides in molten slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An electrolytic cell for measuring the decomposition voltage of iron oxides in molten slag. The electrolytic cell such as figure 1 shown, including ZrO 2 Tube 12, gas inlet duct 10, gas reference anode 14 and solid state cathode 13. ZrO 2 A gas reference anode 14 is sintered on the lower outer surface of the closed end of the tube 12; one end of the anode lead 4 is fixedly connected to the gas reference anode 14; ZrO 2 The closed end of the tube 12 is filled with slag 1, ZrO 2 The upper port of the tube 12 is provided with an alumina plug 2 .

[0024] The lower half of the intake duct 10 is inserted into the ZrO through the central hole of the alumina plug 2 2 In the pipe 12, the alumina plug 2 is also provided with a vent hole 9, and the lower end of the air intake pipe 10 is located above the liquid level of the molten slag 1. The upper port of the intake pipe 10 is sealed and connected with the lower port of the T-shaped three-way pipe 7 through the rubber tube...

Embodiment 2

[0031] An electrolytic cell for measuring the decomposition voltage of iron oxides in molten slag. Except following technical parameter, all the other are with embodiment 1.

[0032] The dopant is MgO, ZrO2 The inner diameter of the tube 12 is 10-25 mm, and the wall thickness is 1-2 mm.

[0033] The material of the solid cathode 13 is Ir, and the diameter of the solid cathode 13 is 0.2-1 mm; the material of the cathode lead 5 is Pt.

[0034] The slag 1 is composed of a slag matrix and dissolved iron oxides, wherein the mass ratio of the slag matrix to the dissolved iron oxides is 1:(0.2~1).

Embodiment 3

[0036] An electrolytic cell for measuring the decomposition voltage of iron oxides in molten slag. Except following technical parameter, all the other are with embodiment 1.

[0037] The dopant is Y 2 o 3 , ZrO 2 The inner diameter of the tube 12 is 5-15 mm, and the wall thickness is 0.5-1 mm.

[0038] The material of the solid cathode 13 is Pt or Rh or Pt-Rh alloy, and the diameter of the solid cathode 13 is 0.2-1mm; the material of the cathode lead 5 is Ir, or Rh, or Pt-Rh alloy.

[0039] The slag 1 is composed of a slag matrix and dissolved iron oxides, wherein the mass ratio of the slag matrix to the dissolved iron oxides is 1:(0.01~0.2).

[0040] When adopting this specific embodiment to carry out high-temperature measurement, ZrO 2 The closed end of the tube (12) is placed in a constant temperature zone in a tube-type high-temperature furnace, and air with a flow rate of 100-600 mL / min passes through the high-temperature furnace. Ar or N with a flow rate of 10-100m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to an electrolytic tank for determining iron oxide decomposition voltage in slag. According to the technical scheme, a gas reference anode (14) is sintered on the external surface of the lower part at a sealed end of a ZrO2 tube (12); slag (1) is contained in the sealed end of the ZrO2 tube (12); an exhaust vent (9) is formed in an aluminium oxide plug (2) at the upper port of the ZrO2 tube (12); the upper port of an air intake conduit (10) is tightly connected with the lower port of a T-shaped three-way pipe (7) through a rubber hose (3); a bypass port of the T-shaped three-way pipe (7) is an air inlet (8); the lower end of an insulating pipe (11) penetrates to the inside of the ZrO2 tube (12) through a center hole of a rubber plug (6) and the lower port of the air intake conduit (10); a solid-state cathode (13) is fixed at the lower end of the insulating tube (11); the lower end of the solid-state cathode (13) is inserted into the slag (1); the lower end of a cathode lead (5) penetrates through the insulating tube (11) and is connected with the upper end of the solid-state cathode (13). The electrolytic tank has the characteristics of simple structure, easiness in operation, stable determination result and strong anti-jamming capability.

Description

technical field [0001] The invention belongs to the technical field of electrolytic cells. Specifically relates to an electrolytic cell used for measuring the decomposition voltage of iron oxide in slag. Background technique [0002] CO control 2 The issue of emissions has become the focus of attention in the global metallurgical community. The traditional iron and steel smelting process consumes a large amount of coal coke fossil energy, which is the source of CO 2 One of the major industries emitting emissions. Therefore, effectively reducing CO in steel production 2 Emissions have become an urgent problem to be solved in the metallurgical industry. High-temperature electrolysis is a basic method for extracting metals. The most successful example is the application of the cryolite-alumina molten salt electrolysis method with a history of more than 100 years to obtain metal aluminum. The production of other metals such as iron should also learn from the aluminum elect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/28G01R19/00
Inventor 高运明杨映斌杨创煌洪川
Owner WUHAN UNIV OF SCI & TECH