CN105271377A - Titanium-containing concentrate recovery method - Google Patents
Titanium-containing concentrate recovery method Download PDFInfo
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- CN105271377A CN105271377A CN201410297180.4A CN201410297180A CN105271377A CN 105271377 A CN105271377 A CN 105271377A CN 201410297180 A CN201410297180 A CN 201410297180A CN 105271377 A CN105271377 A CN 105271377A
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Abstract
The invention discloses a titanium-containing concentrate recovery method. According to the invention, titanium-containing furnace slag is subjected to crushing, sieving and iron removing; the slag is subjected to acid dissolution with hydrochloric acid, such that metal elements expect silicon and titanium in the slag are dissolved in hydrochloric acid, and titanium oxide and silicon oxide can be separated in a form of solid precipitate; after filtering, the filter slag is added into a sodium hydroxide solution and is subjected to alkali dissolution, such that silicon is dissolved in the alkali solution, and titanium exists in a form of a precipitate metatitanic acid; and filtering and drying are carried out, such that the titanium-containing concentrate is obtained. With the method provided by the invention, titanium in titanium-containing furnace slag can be separated, and other valuable elements can be separated and extracted in subsequent processes. The recovery effect is good, and the resource is effectively utilized.
Description
Technical field
The present invention relates to a kind of trade waste method of comprehensive utilization, be specifically related to a kind of recovery method of titaniferous enriched substance.
Background technology
Slag generally all goes out of use as rubbish as metallurgy industry solid waste, and valuable resources a large amount of in waste residue is wasted.In recent years; along with continuing to increase of cultivated land protection dynamics; clay brick progressively exits construction market; slag is used as building stripping and slicing raw material gradually; although achieve the recycling of solid waste to a certain extent; but the high added value element contained in slag is not still utilized effectively, the utility value of slag is not excavated fully.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides that a kind of new method design is reasonable, the recovery method of the significant titaniferous enriched substance of recovering effect.
Technical problem to be solved by this invention is realized by following technical scheme.The present invention is a kind of recovery method of titaniferous enriched substance, is characterized in:
(1) raw material: Ti-containing slag is first simply sorted removal of impurities process, then carries out fragmentation with Raymond mill, carries out sorting deironing with magnetic separator;
(2) acid-soluble: by above-mentioned treated slag with 20-35% hydrochloric acid carry out acid-soluble, acid-soluble temperature is 30-60 DEG C, the acid-soluble time is 10-60 minutes, and keep solution Ph value to be 2-5, the metal oxides such as the calcium magnesium-aluminum-iron in slag are all dissolved in hydrochloric acid, titanium then precipitates with the form of silicon-dioxide with metasilicic acid, silicon, then filters, by for subsequent use for titaniferous filter residue and drying;
(3) alkali is molten: the above-mentioned throw out through drying treatment being joined concentration is that to carry out alkali in the sodium hydroxide solution of 10-50% molten, alkali solubility temperature is 50-100 DEG C, the alkali molten time is 1-6 hours, and keep solution Ph value to be 8-10, make the silicon-dioxide in throw out fully be converted into Starso and enter into solution, filtration, drying, obtain titaniferous enriched substance metatitanic acid.
The recovery method of a kind of titaniferous enriched substance of the present invention, its most preferred technical scheme is:
(1) raw material: Ti-containing slag is first simply sorted removal of impurities process, then carries out fragmentation with Raymond mill, carries out sorting deironing with magnetic separator;
(2) acid-soluble: by above-mentioned treated slag with 20-35% hydrochloric acid carry out acid-soluble, acid-soluble temperature is 45 DEG C, the acid-soluble time is 30 minutes, and keep solution ph to be 3, the metal oxides such as the calcium magnesium-aluminum-iron in slag are all dissolved in hydrochloric acid, titanium then precipitates with the form of silicon-dioxide with metasilicic acid, silicon, then filters, by for subsequent use for titaniferous filter residue and drying;
(3) alkali is molten: the above-mentioned throw out through drying treatment being joined concentration is that to carry out alkali in the sodium hydroxide solution of 35% molten, alkali solubility temperature is 65 DEG C, the alkali molten time is 3 hours, and keep solution ph to be 9, make the silicon-dioxide in throw out fully be converted into Starso and enter into solution, filtration, drying, obtain titaniferous enriched substance metatitanic acid.
Compared with prior art, the titanium in Ti-containing slag not only can be separated by the present invention, and other valuable elements can also be carried out continuation separation and Extraction, its recovering effect is good, efficiently utilizes resource.
Embodiment
Embodiment 1, a kind of recovery method of titaniferous enriched substance:
(1) raw material: Ti-containing slag is first simply sorted removal of impurities process, then carries out fragmentation with Raymond mill, carries out sorting deironing with magnetic separator;
(2) acid-soluble: by above-mentioned treated slag with 20-35% hydrochloric acid carry out acid-soluble, acid-soluble temperature is 30-60 DEG C, the acid-soluble time is 10-60 minutes, and keep solution Ph value to be 2-5, the metal oxides such as the calcium magnesium-aluminum-iron in slag are all dissolved in hydrochloric acid, titanium then precipitates with the form of silicon-dioxide with metasilicic acid, silicon, then filters, by for subsequent use for titaniferous filter residue and drying;
(3) alkali is molten: the above-mentioned throw out through drying treatment being joined concentration is that to carry out alkali in the sodium hydroxide solution of 10-50% molten, alkali solubility temperature is 50-100 DEG C, the alkali molten time is 1-6 hours, and keep solution Ph value to be 8-10, make the silicon-dioxide in throw out fully be converted into Starso and enter into solution, filtration, drying, obtain titaniferous enriched substance metatitanic acid.
Embodiment 2, a kind of recovery method of titaniferous enriched substance:
(1) raw material: Ti-containing slag is first simply sorted removal of impurities process, then carries out fragmentation with Raymond mill, carries out sorting deironing with magnetic separator;
(2) acid-soluble: by above-mentioned treated slag with 20-35% hydrochloric acid carry out acid-soluble, acid-soluble temperature is 45 DEG C, the acid-soluble time is 30 minutes, and keep solution ph to be 3, the metal oxides such as the calcium magnesium-aluminum-iron in slag are all dissolved in hydrochloric acid, titanium then precipitates with the form of silicon-dioxide with metasilicic acid, silicon, then filters, by for subsequent use for titaniferous filter residue and drying;
(3) alkali is molten: the above-mentioned throw out through drying treatment being joined concentration is that to carry out alkali in the sodium hydroxide solution of 35% molten, alkali solubility temperature is 65 DEG C, the alkali molten time is 3 hours, and keep solution ph to be 9, make the silicon-dioxide in throw out fully be converted into Starso and enter into solution, filtration, drying, obtain titaniferous enriched substance metatitanic acid.
Claims (2)
1. a recovery method for titaniferous enriched substance, is characterized in that:
(1) raw material: Ti-containing slag is first simply sorted removal of impurities process, then carries out fragmentation with Raymond mill, carries out sorting deironing with magnetic separator;
(2) acid-soluble: by above-mentioned treated slag with 20-35% hydrochloric acid carry out acid-soluble, acid-soluble temperature is 30-60 DEG C, the acid-soluble time is 10-60 minutes, and keep solution Ph value to be 2-5, the metal oxides such as the calcium magnesium-aluminum-iron in slag are all dissolved in hydrochloric acid, titanium then precipitates with the form of silicon-dioxide with metasilicic acid, silicon, then filters, by for subsequent use for titaniferous filter residue and drying;
(3) alkali is molten: the above-mentioned throw out through drying treatment being joined concentration is that to carry out alkali in the sodium hydroxide solution of 10-50% molten, alkali solubility temperature is 50-100 DEG C, the alkali molten time is 1-6 hours, and keep solution Ph value to be 8-10, make the silicon-dioxide in throw out fully be converted into Starso and enter into solution, filtration, drying, obtain titaniferous enriched substance metatitanic acid.
2. the recovery method of a kind of titaniferous enriched substance according to claim 1, is characterized in that:
(1) raw material: Ti-containing slag is first simply sorted removal of impurities process, then carries out fragmentation with Raymond mill, carries out sorting deironing with magnetic separator;
(2) acid-soluble: by above-mentioned treated slag with 20-35% hydrochloric acid carry out acid-soluble, acid-soluble temperature is 45 DEG C, the acid-soluble time is 30 minutes, and keep solution ph to be 3, the metal oxides such as the calcium magnesium-aluminum-iron in slag are all dissolved in hydrochloric acid, titanium then precipitates with the form of silicon-dioxide with metasilicic acid, silicon, then filters, by for subsequent use for titaniferous filter residue and drying;
(3) alkali is molten: the above-mentioned throw out through drying treatment being joined concentration is that to carry out alkali in the sodium hydroxide solution of 35% molten, alkali solubility temperature is 65 DEG C, the alkali molten time is 3 hours, and keep solution ph to be 9, make the silicon-dioxide in throw out fully be converted into Starso and enter into solution, filtration, drying, obtain titaniferous enriched substance metatitanic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410297180.4A CN105271377A (en) | 2014-06-28 | 2014-06-28 | Titanium-containing concentrate recovery method |
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| CN201410297180.4A CN105271377A (en) | 2014-06-28 | 2014-06-28 | Titanium-containing concentrate recovery method |
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| CN105271377A true CN105271377A (en) | 2016-01-27 |
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| CN201410297180.4A Pending CN105271377A (en) | 2014-06-28 | 2014-06-28 | Titanium-containing concentrate recovery method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800677A (en) * | 2016-05-18 | 2016-07-27 | 云南林缘香料有限公司 | Production method and equipment for producing metatitanic acid through titanium dioxide slurry |
| CN107354252A (en) * | 2017-07-28 | 2017-11-17 | 华北理工大学 | Titanium-containing blast furnace slag disposal of resources method and rich-titanium material acquisition methods |
| TWI697565B (en) * | 2019-05-02 | 2020-07-01 | 滿益金科技有限公司 | Method for recovering gold-containing titanium-aluminum sputtering derived resources |
-
2014
- 2014-06-28 CN CN201410297180.4A patent/CN105271377A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800677A (en) * | 2016-05-18 | 2016-07-27 | 云南林缘香料有限公司 | Production method and equipment for producing metatitanic acid through titanium dioxide slurry |
| CN107354252A (en) * | 2017-07-28 | 2017-11-17 | 华北理工大学 | Titanium-containing blast furnace slag disposal of resources method and rich-titanium material acquisition methods |
| TWI697565B (en) * | 2019-05-02 | 2020-07-01 | 滿益金科技有限公司 | Method for recovering gold-containing titanium-aluminum sputtering derived resources |
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