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Novel technology for preparing low vanadium-titanium alloy comminuted steel shot through vanadium and titanium iron concentrate

A technology of low-vanadium-titanium alloy steel powder and vanadium-titanium iron concentrate is applied in the field of preparing low-vanadium-titanium alloy steel powder from vanadium-titanium iron concentrate, which can solve the problems of undeveloped functions and achieve less consumption and good separation effect Effect

Inactive Publication Date: 2015-07-15
CHANGSHA DONGXIN MINING & METALLURGICAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of comprehensive utilization of mineral resources and application of metallurgical technology, there are still many potential functions that have not yet been developed. In 201210257024.6, one of the functions of reducing titanium and iron at low temperature was developed. On this basis, this patent excavated a new unique features of

Method used

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  • Novel technology for preparing low vanadium-titanium alloy comminuted steel shot through vanadium and titanium iron concentrate
  • Novel technology for preparing low vanadium-titanium alloy comminuted steel shot through vanadium and titanium iron concentrate
  • Novel technology for preparing low vanadium-titanium alloy comminuted steel shot through vanadium and titanium iron concentrate

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Experimental program
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Embodiment 1

[0024] Embodiment 1 Using the inventive method to separate iron and titanium vanadium from vanadium-titanium iron ore concentrate

[0025] Mix 100 parts of vanadium-titanium iron concentrate with 1.5 parts of sodium humate and 15 parts of solid reducing agent, and then put it into a reduction tank, heat the temperature to 1200 ° C in an imitation tunnel kiln and keep it for 5 hours to obtain the reduction material; After crushing and grinding to -200 mesh 65%, magnetic separation to obtain rough concentrate and tailings, coarse concentrate is then ground to -200 mesh 70%, magnetic separation to obtain concentrate and medium ore, tailings and medium ore are mixed It is a vanadium-rich titanium material. The separation results of the obtained sponge iron and vanadium-rich titanium materials are shown in Table 2: the TFe content in the primary reduced iron powder is 89.41%, and the iron recovery rate is 88.46%; after the secondary fine reduction, the results are shown in Table 7....

Embodiment 2

[0026] Embodiment 2 Using the inventive method to separate iron and titanium vanadium from vanadium-titanium iron ore concentrate

[0027] Mix 100 parts of vanadium-titanium-iron concentrate with 3 parts of sodium humate and 15 parts of solid reducing agent and briquette it, then put it into a reduction tank, heat the temperature to 1200°C in an imitation tunnel kiln and keep it warm for 5 hours to obtain the reduction material; After crushing and grinding to -200 mesh 65%, magnetic separation to obtain rough concentrate and tailings, coarse concentrate is then ground to -200 mesh 70%, magnetic separation to obtain concentrate and medium ore, tailings and medium ore are mixed It is a vanadium-rich titanium material. The separation results of the obtained sponge iron and vanadium-rich titanium materials are shown in Table 3: the TFe content in the primary reduced iron powder is 92.49%, and the iron recovery rate is 87.39%; after the secondary fine reduction, the results are sho...

Embodiment 3

[0028] Embodiment 3 Using the method of the present invention to separate iron and titanium vanadium from vanadium-titanium iron ore concentrate

[0029] Mix 100 parts of vanadium-titanium iron concentrate with 5 parts of sodium humate and 15 parts of solid reducing agent, and then put it into a reduction tank, heat it in a tunnel kiln to 1200°C and keep it for 5 hours to obtain the reduction material; After crushing and grinding to -200 mesh 65%, magnetic separation to obtain rough concentrate and tailings, coarse concentrate is then ground to -200 mesh 70%, magnetic separation to obtain concentrate and medium ore, tailings and medium ore are mixed It is a vanadium-rich titanium material. The separation results of the obtained sponge iron and vanadium-rich titanium materials are shown in Table 4: the TFe content in the primary reduced iron powder is 92.44%, and the iron recovery rate is 85.71%; after the secondary fine reduction, the results are shown in Table 7.

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Abstract

The invention relates to the technical field of comprehensive utilization of mineral resources and metallurgy, and in particular relates to a novel technology for preparing low vanadium-titanium alloy comminuted steel shot through vanadium and titanium iron concentrate. According to the technical scheme, the novel technology comprises the following steps: reducing vanadium and titanium iron concentrate at 1,200+ / 30 DEG C by using nontoxic, smell-less and non-corrosive sodium humate as a novel catalyst; carrying out wet-process grinding and selecting on the reduced materials to obtain primary reduced iron powder containing vanadium and titanium; and then refining and reducing for the second time to obtain the low vanadium-titanium alloy comminuted steel shot which has high cost performance and contains 0.3 to 0.4% of V and 0.4 to 0.97% of Ti.

Description

technical field [0001] The invention relates to the field of comprehensive utilization of mineral resources and metallurgy, in particular to a new technology for preparing low-vanadium-titanium alloy steel powder from vanadium-titanium iron concentrate. Background technique [0002] The methods for preparing low-alloy steel powder described in existing published patents and literature reports are basically four categories, namely element mixed powder method, part pre-alloyed powder method, pre-alloyed powder method and coating powder. Based on the primary processed metal powder or parent powder, it is made through a series of processing techniques, using mineral products as raw materials and directly preparing low-alloy steel powder through a process flow. No disclosure has been seen. [0003] The inventor of this patent, in the 201210257024.6 patent, proposed a method for preparing a new type of high-quality fine-grained trace alloy iron powder from vanadium-titanium iron c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B5/10C22B5/12B22F9/22B22F9/20C22C38/14
Inventor 梁经冬梁毅梁建昂曾维龙
Owner CHANGSHA DONGXIN MINING & METALLURGICAL TECH DEV
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