Purification process of mineral slag by chlorination process

A chlorination method, slag technology, applied in the direction of titanium tetrachloride, chemical instruments and methods, titanium halide, etc., can solve problems such as inability to directly stack, increase post-treatment costs, and unutilized vanadium, titanium and chromium resources. , to avoid dealing with problems and enrich the way of utilization

Active Publication Date: 2016-01-06
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Problems solved by technology

After mining, the slag still contains available vanadium, chromium, iron and titanium resources. If the ironmaking process is directly used, the vanadium, titanium and chromium resources will not be utilized, and the blast furnace slag will contain a relatively high concentration of chromium Oxides cannot be stacked directly, which will greatly increase the cost of post-processing

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  • Purification process of mineral slag by chlorination process

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Embodiment Construction

[0025] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0026] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0027] The specific implementation manners of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0028] Such as figure 1 As shown, the chlorination purification process of slag in the embodiment of the present invention provides a chlorination production process to obtain vanadium, chromium, iron and titanium resources therein. The main objects of action are the Hongge ore veins in the...

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Abstract

The invention discloses a purification process of mineral slag by a chlorination process. The process comprises the following steps: carrying out low-temperature chlorination and recovering a solid product after reaction through a cyclone separation device; recovering a gaseous product through a first dust collector; carrying out high-temperature chlorination and recovering the gaseous product after reaction through a condenser; and settling the solid product after reaction through a second dust collector to form dust collecting slag. According to the process disclosed by the invention, elements in associated lean ores can be effectively separated to obtain a required corresponding product, so that the utilization mode of lean ore resources is enriched. According to the process disclosed by the invention, a chromium trichloride product of an industrial grade can be obtained, so that a problem of treating chromium slag after extraction of resources is avoided.

Description

technical field [0001] The invention relates to the field of chemical smelting of minerals, in particular to a chlorination purification process of slag. Background technique [0002] At present, there is a new situation in the development of vanadium and titanium resources in the Panxi area, that is, the resource distribution in the Hongge ore veins has changed greatly from the previous veins, and the most prominent is that the chromium content has increased greatly. After mining, the slag still contains available vanadium, chromium, iron and titanium resources. If the ironmaking process is directly used, the vanadium, titanium and chromium resources will not be utilized, and the blast furnace slag will contain a relatively high concentration of chromium Oxides cannot be stacked directly, which will greatly increase the cost of post-processing. Contents of the invention [0003] The invention overcomes the shortcomings of the prior art and provides a chlorination purific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G31/00C01G23/02C01G37/04C01G49/10
CPCC01G23/022C01G31/00C01G37/04C01G49/10
Inventor 刘森林杜明李冬勤尹国亮陈建文
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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