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Hot charging sodium modifying process of organic matter refining vanadium removal tailings

A technology of organic matter and vanadium tailings, applied in the field of metallurgy, can solve the problems of insufficient utilization of activated carbon calorific value, waste of resources, environmental pollution, etc., and achieve the effect of maximizing utilization, protecting the environment and reducing energy consumption.

Active Publication Date: 2019-12-20
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD +1
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Problems solved by technology

[0004] However, compared with aluminum powder vanadium removal tailings, organic vanadium removal tailings contain a large amount of activated carbon, which burns slowly in the slag hopper after slag discharge. On the one hand, a large amount of vanadium resources are volatilized into the surrounding environment due to high temperature, resulting in waste of resources. At the same time, it pollutes the environment; on the other hand, the calorific value of activated carbon is not fully utilized

Method used

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  • Hot charging sodium modifying process of organic matter refining vanadium removal tailings

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Embodiment 1

[0027] Rotary kiln, drum size φ1100×8000mm, power 20kW, V content in tailings 18%, C content 45%, Cl content 20%, Ti content 17%; 300kg / furnace tailings, 108kg / furnace sodium carbonate, output 150kg / h clinker.

[0028] The implementation method is as follows: ① Discharge the 300°C evaporating and refined tailings of the ore pulp into the closed refined tailings tank (the slag tank adopts a sealed slag discharge design, and 3 to 4 slag tanks can complete the turnover of slag discharge and roasting), The slag tank filled with slag is placed in the designated place for use; ② Transfer the slag tank to be used on the feeding platform of the rotary kiln (speed 12r / m), so that the discharge port of the slag tank is closely connected with the feed port of the rotary kiln Docking; ③ Open the valve at the bottom of the slag tank, put the refined tailings into the screw conveyor, the feeding speed is 150kg / h, at the same time open the valve at the bottom of the sodiumizing agent silo, ...

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Abstract

The invention discloses a hot charging sodium modifying process of organic matter refining vanadium removal tailings, and belongs to the technical field of metallurgy. In order to fully utilize vanadium and waste heat in the organic matter refining vanadium removal tailings and reduce energy consumption and production cost, the hot charging sodium modifying process of the organic matter refining vanadium removal tailings is provided. The hot charging sodium modifying process comprises the steps that the organic matter refining vanadium removal tailings of 150 DEG C-350 DEG C and a sodium modifying agent are loaded into a rotary kiln, after charging is completed, air is input, roasting is carried out at the temperature ranging from 650 DEG C to 700 DEG C, and after roasting is completed, sodium modifying roasting clinker is obtained. By means of a method, volatilization of the vanadium in the refining tailings is avoided, the environment is protected, and maximum utilization of vanadiumresources is achieved; and heat generated by combustion of activated carbon in the refining tailings is supplied to the self reaction, energy consumption is reduced, and the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a process for hot charging and sodiumization of vanadium-removing tailings from organic matter refining. Background technique [0002] in TiCl 4 In production, vanadium is converted to VOCl 3 The form enters crude titanium tetrachloride as an impurity, and enters the organic matter refining and vanadium removal slurry through the process of organic matter refining and vanadium removal, and is separated from titanium tetrachloride. At high temperature, the TiCl in the vanadium-containing mud is evaporated 4 , and finally the remaining refined tailings with high vanadium content. [0003] At present, there are two ways to extract vanadium from refined tailings: one is to extract vanadium by hydrometallurgy, that is, the refined tailings are simply treated (or not treated), and then the treated tailings are soaked in acid or alkali to obtain a vanadium-containing s...

Claims

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Application Information

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IPC IPC(8): C22B1/02C22B34/22
CPCC22B1/02C22B34/22
Inventor 李良周丽宋兵王建鑫
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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