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

Method for producing vanadium nitride

A technology of vanadium nitride and nitrogen, which is applied in the direction of nitrogen-metal/silicon/boron binary compounds, etc., can solve the problems of increased difficulty in processing and manufacturing technology, high maintenance and repair costs, and uneven product quality, so as to avoid product quality. Unevenness, product quality uniformity assurance, and the effect of shortening reaction time

Inactive Publication Date: 2009-09-23
何树云
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this production method will produce a temperature gradient in the charge in the furnace, that is, the actual reaction temperature obtained by each charge or the time to reach the reaction temperature are step differences, which will easily cause uneven product quality and affect the accuracy of the subsequent steelmaking process. It is difficult to calculate the amount of vanadium when vanadium nitride is added; in addition, because the equipment heats the gas in the furnace and the furnace charge at the same time, that is, the heating and reaction are the same equipment, the processing and manufacturing technology of the equipment is more difficult and the cost is increased. The production and operation situation shows that the investment in vanadium nitride production equipment is large, and the maintenance and repair costs are very expensive

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 adopts the inventive method to produce vanadium nitride

[0028] Put the prepared vanadium nitride raw material (100kg of vanadium tetroxide, 23kg of graphite powder) into the vanadium nitride reactor, and put the reactor with the vanadium nitride raw material into the heat preservation furnace. Pass high-temperature nitrogen gas into the vanadium nitride reactor holding furnace with vanadium nitride raw material, monitor the temperature of the atmosphere in the holding furnace, when the temperature reaches 1350°C, keep the temperature, and continue to feed high-temperature nitrogen for 2 hours, then switch the high-temperature nitrogen It is cold nitrogen, continue to feed cold nitrogen, monitor the temperature of the atmosphere in the furnace, until the temperature of the atmosphere in the furnace is ≤150°C, stop feeding nitrogen, take the reactants out of the furnace, and obtain vanadium nitride products, ΣV=77.55wt%, ΣN =13.85wt%, the product quality un...

Embodiment 2

[0029] Embodiment 2 adopts the inventive method to produce vanadium nitride

[0030] Put the prepared vanadium nitride raw material (100kg of vanadium pentoxide, 33kg of activated carbon) into the vanadium nitride reactor, and put the reactor with the vanadium nitride raw material into the heat preservation furnace. Pass high-temperature nitrogen gas into the vanadium nitride reactor holding furnace with vanadium nitride raw material, monitor the atmosphere temperature in the holding furnace, when the temperature reaches 1450°C, keep the temperature, continue to feed high-temperature nitrogen for 3 hours, then switch the high-temperature nitrogen It is cold nitrogen, continue to feed cold nitrogen, monitor the temperature of the atmosphere in the furnace until the temperature of the atmosphere in the furnace is ≤150°C, stop feeding nitrogen, take the reactants out of the furnace, and obtain vanadium nitride products, ΣV=77.95wt%, ΣN =15.26wt%, the product quality uniformity is...

Embodiment 3

[0031] Embodiment 3 adopts the inventive method to produce vanadium nitride

[0032] Put the prepared vanadium nitride raw material (100kg of vanadium trioxide, 24kg of graphite powder) into the vanadium nitride reactor, and put the reactor with the vanadium nitride raw material into the heat preservation furnace. Pass high-temperature nitrogen gas into the vanadium nitride reactor heat preservation furnace with vanadium nitride raw material, monitor the atmosphere temperature in the heat preservation furnace, when the temperature reaches 1500°C, keep the temperature, continue to feed high temperature nitrogen for 2 hours, then switch the high temperature nitrogen gas It is cold nitrogen, continue to feed cold nitrogen, monitor the temperature of the atmosphere in the furnace until the temperature of the atmosphere in the furnace is ≤150°C, stop feeding nitrogen, and take the reactants out of the furnace to obtain vanadium nitride products, ΣV=78.62wt%, ΣN =15.85wt%, the produ...

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

No PUM Login to View More

Abstract

The invention relates to a method for producing vanadium nitride, belonging to the field of vanadium alloy production and aiming at providing a method for producing vanadium nitride with equal quality. The method for producing vanadium nitride adopts the proposal of directly introducing high-temperature nitrogen to react with materials for producing vanadium nitride, wherein the temperature of the high-temperature nitrogen is greater than or equal to 1600 DEG C. The method has simple process and can enhance the production efficiency of a single furnace and ensure good uniformity of product quality so as to enhance the product reliability for downstream users. The invention provides a new choice for the field of vanadium nitride production and has wide application prospect.

Description

technical field [0001] The invention relates to a method for producing vanadium nitride, belonging to the field of vanadium alloy production. Background technique [0002] The traditional vanadium-containing steel production process is to add vanadium alloys, such as series vanadium-iron alloys, to steelmaking production. With the development of steelmaking technology and vanadium product production technology, as well as the continuous improvement of market requirements for steel properties, and because of the excellent performance of vanadium nitride as an additive in steel, the production of vanadium-containing steel gradually tends to add vanadium nitride alloys . Research and practice have shown that the use of vanadium nitride can more effectively strengthen and refine the microscopic grains of steel, can more effectively improve the mechanical properties of steel, improve the weldability, notch toughness and forgeability of steel, and Compared with using ferrovanadi...

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
IPC IPC(8): C01B21/06
Inventor 何树云
Owner 何树云