CN1948519A - Method of removing sulfur, arsenic, phosphorus and reducing silicone using constant temperature calcining-water quenching ore dressing - Google Patents
Method of removing sulfur, arsenic, phosphorus and reducing silicone using constant temperature calcining-water quenching ore dressing Download PDFInfo
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- CN1948519A CN1948519A CN 200610048809 CN200610048809A CN1948519A CN 1948519 A CN1948519 A CN 1948519A CN 200610048809 CN200610048809 CN 200610048809 CN 200610048809 A CN200610048809 A CN 200610048809A CN 1948519 A CN1948519 A CN 1948519A
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Abstract
The invention is a method of mineral concentration by roasting-water quenching under constant temperature to remove sulphur, arsenic, phosphor and subdue silicium. The method is characterized in that: Crude ore is broke to a fineness of 0-2.5mm and classed. Then, it is roasted under constant temperature for 45 to 60 minutes with a calcium fluoride auxiliary containing 3-4%. ore. After being roasted, crude ore is water quenched to achieve separation of metal and silicon. It is broke to 80-120 order again. Metallic ore and ferrous metal are separated by technics of magnetic separation and gravity treatment, which can achieve necessary preparation concentrate of nonferrous metal. The method can remove sulphur to 0.064%, phosphor to 0.082% and arsenic to 0.013%. Thus sulphur, phosphor, arsenic and silicium are separately depressed to 0.1<%,0.1<% , 0.02<% and 18-25%.
Description
Technical field
The present invention relates to the technique of preparing field, using constant temperature calcining-water quenching ore dressing sulphur removal specifically, arsenic, phosphorus, fall the beneficiation method of silicon.
Background technology
Iron mineral and collophanite, phosphatic rock, shaft-like phosphatic rock organophosphorus, the relation of sulfide, free sulphur, arsenide and many metals of iron ore association ore are complicated extremely closely.The ore of existing processing sulfur-bearing, arsenic, phosphorus mainly is: flotation---sulphur, arsenic, the flotation combined flow process of phosphide, and there is following defective in it:
(1) existing flotation sulphur removal, phosphorus, arsenic complex process, particularly dephosphorization need be under high temperature (40 ℃) situations, ability flotation dephosphorization, cost is too high, and Technology is difficult to control, uses in selecting iron ore, cause iron ore concentrate cost height, difficult quality guarantee, commerciality is poor.
(2) existing flotation dephosphorization, sulphur, arsenic technology can only the blanking association sulphur, arsenide and symbiotic phosphide, can not blanking free sulphur, arsenic and phosphorus, free sulphur, arsenic and phosphorus are to be enriched in the iron ore concentrate surface, the iron ore concentrate enrichment, and sulphur, arsenic and phosphorus molecule can also be followed enrichment.
(3) existing flotation dephosphorization, sulphur, arsenic technology are that the floating trough power consumption is big, the energy consumption height with flotation cell adding medicine blanking phosphorus, sulphur, arsenic medicament expense height.
In a word, existing floatation process dephosphorization, sulphur, arsenic exist environmental influence and water source destructive big, energy consumption height, ore dressing expense cost height, complex process, the unstable product quality of producing is difficult to large-scale application, and can not handles free sulphur, phosphorus, arsenic minerals stone.
Summary of the invention
The purpose of this invention is to provide a kind of can solve floatation process can not the symbiotic phosphorus of milling of ores, the deficiency of sulphur, arsenic, equipment energy consumption is low, the technology cost is low, controlled good using constant temperature calcining-water quenching ore dressing sulphur removal, phosphorus, the arsenic of technology, falls the method for silicon.
Technical scheme of the present invention is: raw ore is crushed to 0～2.5mm fineness, classification, carry out constant temperature (900 ℃) roasting 45～60 minutes, the auxiliary Calcium Fluoride (Fluorspan) that adds ore amount 3～4 ‰ during roasting, after finishing, roasting directly carries out Water Quenching, shrend separates (according to the deformation coefficient that expands with heat and contract with cold of metal and silicon) with silicon to reach metal, in small, broken bits again to the 80-120 order, metallic ore is separated with non-non-ferrous metal with gravity separation technology with magnetic separation process, thereby obtain required non-ferrous metal concentrate, obtain P (phosphorus)＜0.082%, S (sulphur)＜0.064%, the smart fine ore of As (arsenic)＜0.013% is (at rhombohedral iron ore, limonite, specularite, the rib iron ore, sulfurous iron ore and copper mine).
Technical process: raw ore → fragmentation → classification → constant temperature calcining → shrend → in small, broken bits → magnetic separation or gravity treatment separate to such an extent that concentrate enters smart powder pond, and the mine tailing overflow is handled to tailing pond again and utilized.
The present invention compared with prior art have following actively the fruit:
(1) application constant temperature calcining-water quenching technology dephosphorization, sulphur, arsenic do not add industrial chemicals, can solve the deficiency that floatation process can not be handled symbiotic phosphorus, sulphur, arsenic, and little to water source and environmental influence, the environmental protection treatment expense is low.
(2) it is low to use the dephosphorization of constant temperature calcining-water quenching technology, sulphur, arsenic production cost, rich coal resources, should purchase, handle one ton of ore and only need the 50-70 kilogram, 240 yuan/ton-300 yuan/ton of existing market prices are handled one ton of ore cost: 50 kilograms * 0.3 yuan/kilogram-70 kilograms * 0.3 yuan/kilogram, the cost 15-20 unit/ton of coal.
(3) it is big to use the sulphur removal of constant temperature calcining-water quenching technology, phosphorus, arsenic treatment capacity, and equipment is simple, and equipment energy consumption is low, and the technology cost is low, and technology is controlled good, constant product quality, and cost of supplementary product is low, and beneficiation cost is low.
Constant temperature calcining-water quenching of the present invention and floatation process compare: the constant temperature calcining-water quenching sulphur removal can reach 0.064%, and dephosphorization can reach 0.082%, and arsenic can reach 0.013%, and sulphur can be reduced to 0.1＜%, and phosphorus can be reduced to 0.1＜%; Arsenic is reduced to 0.02＜%, and silicon can reduce 18-25%.And floatation process sulphur, phosphorus can only be reduced to 0.2＞%.
Embodiment
Embodiment 1:
With the rhombohedral iron ore on mountain, Wuding county, Chuxiong, Yunnan nine local officials of factory ground, ore character is: rhombohedral iron ore Fe
2O
342%, P 1.03% mineral disseminated grain size is 0.2～0.043 millimeter, raw ore is crushed to 0～2.5mm fineness, be classified to 66 orders, carried out 900 ℃ of constant temperature calcinings 45 minutes, the auxiliary Calcium Fluoride (Fluorspan) that adds ore amount 3 ‰ during roasting, after finishing, roasting directly carries out Water Quenching, shrend separates with silicon to reach metal, in small, broken bits again to the 80-120 order, metallic ore is separated with non-non-ferrous metal with gravity separation technology with magnetic separation process, thereby obtain required non-ferrous metal concentrate, concentrate enters smart powder pond, and the mine tailing overflow is handled to tailing pond again and utilized.The iron ore concentrate that magnetic separation is come out obtains Fe behind the sample examination
3O
462%, the iron ore concentrate of P 0.082%, the phosphorus index reaches smelting index.
Embodiment 2:
With the green sulfurous iron ore of advising in Kunming, Yunnan, ore character is: sulfurous iron ore TFe 48%, S 21.42%, 0.2～0.043 millimeter of As0.63% mineral disseminated grain size, iron ore is through being crushed to 0～2.5mm fineness, be classified to negative 60 orders, carry out 900 ℃ of constant temperature calcinings 60 minutes, and added the auxiliary Calcium Fluoride (Fluorspan) of ore amount 4 ‰ during roasting, directly carry out Water Quenching after roasting is finished, shrend separates with silicon to reach metal, in small, broken bits again to the 80-120 order, metallic ore is separated with non-non-ferrous metal with gravity separation technology with magnetic separation process, thereby obtain required non-ferrous metal concentrate, concentrate enters smart powder pond, and the mine tailing overflow is handled to tailing pond again and utilized.Obtain the iron ore concentrate of Fe60%, S 0.064%, As 0.013% behind the sample examination, sulphur arsenic index reaches smelting index.
Claims (2)
1, a kind of constant temperature calcining-water quenching ore dressing sulphur removal, arsenic, phosphorus, the method for silicon is fallen, it is characterized in that raw ore is crushed to 0～2.5mm fineness, classification, carry out constant temperature calcining 45～60 minutes, and added the auxiliary Calcium Fluoride (Fluorspan) of ore amount 3～4 ‰ during roasting, directly carry out Water Quenching after roasting is finished, shrend separates with silicon to reach metal, in small, broken bits again to the 80-120 order, metallic ore is separated with non-non-ferrous metal with gravity separation technology with magnetic separation process, thereby obtain required non-ferrous metal concentrate.
2, constant temperature calcining-water quenching ore dressing sulphur removal according to claim 1, arsenic, phosphorus, the method for silicon is fallen, in the smart fine ore that it is characterized in that obtaining through magnetic separation process and gravity separation technology, P＜0.082%, S＜0.064%, As＜0.013%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610048809 CN1948519A (en) | 2006-11-09 | 2006-11-09 | Method of removing sulfur, arsenic, phosphorus and reducing silicone using constant temperature calcining-water quenching ore dressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610048809 CN1948519A (en) | 2006-11-09 | 2006-11-09 | Method of removing sulfur, arsenic, phosphorus and reducing silicone using constant temperature calcining-water quenching ore dressing |
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|---|---|
| CN1948519A true CN1948519A (en) | 2007-04-18 |
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| CN 200610048809 Pending CN1948519A (en) | 2006-11-09 | 2006-11-09 | Method of removing sulfur, arsenic, phosphorus and reducing silicone using constant temperature calcining-water quenching ore dressing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580666A (en) * | 2012-03-14 | 2012-07-18 | 王银叶 | Modified pumice for purifying heavy metal sewage and preparation method and application of modified pumice |
| CN102925665A (en) * | 2011-08-11 | 2013-02-13 | 张祥麟 | Ore separation method for industrial production of above 65 iron concentrate powder through cluster analysis of low-grade hematite |
| CN106994388A (en) * | 2017-04-01 | 2017-08-01 | 安徽工业大学 | It is a kind of to remove the method that difficult iron rough concentrate sulphur phosphorus arsenic reclaims iron simultaneously |
| CN109821650A (en) * | 2019-02-15 | 2019-05-31 | 河北钢铁集团矿业有限公司 | A kind of high silicon bloodstone tailing treatment technology |
| CN114798159A (en) * | 2022-04-28 | 2022-07-29 | 包头钢铁（集团）有限责任公司 | Ore grading process |
-
2006
- 2006-11-09 CN CN 200610048809 patent/CN1948519A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925665A (en) * | 2011-08-11 | 2013-02-13 | 张祥麟 | Ore separation method for industrial production of above 65 iron concentrate powder through cluster analysis of low-grade hematite |
| CN102580666A (en) * | 2012-03-14 | 2012-07-18 | 王银叶 | Modified pumice for purifying heavy metal sewage and preparation method and application of modified pumice |
| CN102580666B (en) * | 2012-03-14 | 2013-12-25 | 天津城市建设学院 | Modified pumice for purifying heavy metal sewage and preparation method and application of modified pumice |
| CN106994388A (en) * | 2017-04-01 | 2017-08-01 | 安徽工业大学 | It is a kind of to remove the method that difficult iron rough concentrate sulphur phosphorus arsenic reclaims iron simultaneously |
| CN109821650A (en) * | 2019-02-15 | 2019-05-31 | 河北钢铁集团矿业有限公司 | A kind of high silicon bloodstone tailing treatment technology |
| CN114798159A (en) * | 2022-04-28 | 2022-07-29 | 包头钢铁（集团）有限责任公司 | Ore grading process |
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