CN102605170A - Method for effectively separating boron, magnesium and iron from paigeite based on chemical release reaction - Google Patents
Method for effectively separating boron, magnesium and iron from paigeite based on chemical release reaction Download PDFInfo
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- CN102605170A CN102605170A CN2011104555299A CN201110455529A CN102605170A CN 102605170 A CN102605170 A CN 102605170A CN 2011104555299 A CN2011104555299 A CN 2011104555299A CN 201110455529 A CN201110455529 A CN 201110455529A CN 102605170 A CN102605170 A CN 102605170A
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- paigeite
- oxygen acid
- magnesium
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- iron
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a method for effectively separating boron, magnesium and iron from paigeite based on chemical release reaction and belongs to mineral processing technology and the field of integrated use of natural resources. The method is characterized by comprising the following steps of: crushing the paigeite to particles of which the particle size is less than 80 meshes; adding a release auxiliary agent into the particles and uniformly mixing the materials into bulk materials or pressing the materials into molded materials; calcining at the temperature of 700 DEG C; performing wet magnetic separation on the cured materials at one step to obtain iron ore concentrate; after wet magnetic separation, filtering the material slurry to obtain a mixed solution of silicon-containing filter residue, and boron and magnesium; and performing fractional crystallization on the mixed solution to obtain boric acid and a magnesium salt, wherein the filter residue is silicon-containing slag and is a good raw material for manufacturing building materials.
Description
Technical field
The invention belongs to the mineral resources comprehensive utilization field, specially refer to a kind of reaction of loosening and combine to realize boron, magnesium, the isolating method of iron in the paigeite with physical concentration.
Background technology
Paigeite is the important boron resource of China, because it forms complicated, multielement symbiosis, fails so far to be utilized effectively.Because the szaibelyite that can directly utilize is bordering on exhaustion, therefore, realize that the comprehensive utilization of paigeite resource has become the task of top priority.Domestic existing many units develop research to the comprehensive utilization of paigeite; Some schemes have been proposed; Representational have pyrogenic process to separate the technology that paigeite, magnetic-heavily join choosing, magnetic-floating join choosing and reduction roasting magnetic separation associating, decompose paigeite, decompose paigeite with hot ammoniumsulphate soln with mineral acid, but to fail be that Chemical Manufacture department assert and adopts because of the problems such as exploitativeness of environmental protection, economic benefit, technology.
Summary of the invention
The present invention proposes that a kind of cost is low, simple to operate, environmental friendliness and guarantee the method for boron magnesium iron in the active separation paigeite of boron, can obtain products such as boric acid, magnesium salts and iron ore concentrate, and each efficient resource obtains comprehensive utilization in the paigeite thereby make.
The present invention is the boron magnesium iron that utilizes in the chemical dispersion Reaction Separation paigeite, it is characterized in that sepn process is raw materials used, the auxiliary agent kind of loosening and formula rate, maturing temperature and time is following:
Utilizing boron magnesium iron in the chemical dispersion Reaction Separation paigeite raw materials used mainly is the paigeite raw ore, also comprises the paigeite through roughly selecting; Paigeite is crushed to below 80 orders, adds the auxiliary agent ground and mixed of loosening in proportion and obtains powder or be pressed into moulding mixture after evenly; The auxiliary agent of loosening is that molecular formula is C
aH
bO
cN
dOrganism, ammonia, urea, the oxygen acid sodium of phosphorus, the oxygen acid ammonium of phosphorus, the oxygen acid sodium of nitrogen, the oxygen acid ammonium of nitrogen, the oxygen acid sodium of sulphur, the oxygen acid ammonium of sulphur, the oxygen acid sodium of chlorine, oxygen acid ammonium, sodium-chlor or the ammonium chloride of chlorine, be wherein one or more; A is 1～3 integer in the formula, and b is 4～9 integer, and c is 0～3 integer, and d is 1～2 integer; Raw material with loosen the auxiliary agent weight ratio in 1: 0.05～1.5 scopes; Concrete technical process is following:
Step 1. paigeite is crushed to below 80 orders, adds the auxiliary agent ground and mixed of loosening in proportion and obtains powder or be pressed into moulding mixture after evenly;
Step 2. powder or 200～700 ℃ of roasting 0.5～10h of moulding mixture after with blend;
The grog of step 3. after with roasting directly carries out once wet magnetic separation, obtains magnetic part and nonmagnetic slip, and magnetic part is iron ore concentrate;
Step 4. can obtain siliceous slag and high density boron magnesium mixing solutions with slurry filtration, adopts fractionation crystallization can obtain boric acid and magnesium salts, and filter residue is that siliceous slag is good material of construction or Inorganic Chemicals.
Effect of the present invention and benefit are to utilize operational path simple and easy to control to make the boron magnesium fe source in the paigeite obtain separating, and guarantee that each the resource grade height and the recovery are all more than 80%; Raw materials used the obtaining of flow process fully utilizes simultaneously.The present invention shows obvious competitive advantages and profit margin at aspects such as environmental friendliness, product grade, costs.
Embodiment
Be described in detail embodiment of the present invention below in conjunction with technical scheme.
Embodiment 1
Get and consist of B
2O
3The breeze 30g of 8.7% MgO33.2% TFe18.2% presses mass ratio and 1: 0.2～0.5 adds NH
4HSO
4, 1: 0.05～0.2 adds urea, and 1: 0.05～0.1 adds NaNO
3, behind the simple mixing, 200 ℃～500 ℃ roastings 1～3 hour separate through wet magnetic separation, obtain TFe and be 42.8% iron ore concentrate 10.8g, and nonmagnetic portion filters and obtains siliceous filter residue, and the filtrating fractional crystallization obtains boric acid 4.4g, MAGNESIUM SULPHATE HEPTAHYDRATE 99.5 53.83g.
Embodiment 2
Get and consist of B
2O
3The paigeite 100g of 6.0% MgO18.7% TFe35.86% presses mass ratio and 1: 0.1～0.8 adds NaHSO
4, 1: 0.05～0.2 adds urea, after the milling mixing; 200～500 ℃ of roastings 1～3 hour separate through wet magnetic separation, obtain TFe and be 51.9% iron ore concentrate 53.8g; Nonmagnetic portion filters and obtains siliceous filter residue, and the filtrating fractional crystallization obtains boric acid 9.0g, MAGNESIUM SULPHATE HEPTAHYDRATE 99.5 107.0g.
Embodiment 3
Get paigeite 100g used among the embodiment 2, press mass ratio and 1: 0.3～0.8 add (NH
4)
2SO
4, 1: 0.05～0.1 adds (NH
4)
2HPO
4, 1: 0.1～0.3 adds NaCl, after the milling mixing; 200～500 ℃ of roastings 1～3 hour separate through wet magnetic separation, obtain TFe and be 57.01% iron ore concentrate 52.1g; Nonmagnetic portion filters and obtains siliceous filter residue, and the filtrating fractional crystallization obtains boric acid 8.4g, MAGNESIUM SULPHATE HEPTAHYDRATE 99.5 104.6g.
Embodiment 4
Get paigeite 100g used among the embodiment 2, press mass ratio and 1: 0.1～0.8 add NH
4HSO
4, 1: 0.05～0.2 adds CH
3COONH
4, after the milling mixing, 200～500 ℃ of roastings 1～3 hour separate through wet magnetic separation, obtain TFe and be 55.09% iron ore concentrate 49.82g, and nonmagnetic portion filters and obtains siliceous filter residue, and the filtrating fractional crystallization obtains boric acid 8.6g, MAGNESIUM SULPHATE HEPTAHYDRATE 99.5 101.3g.
Claims (1)
1. method of effectively separating boron magnesium iron in the paigeite based on chemical dispersion reaction is characterized in that:
Step 1. paigeite is crushed to below 80 orders, adds the auxiliary agent ground and mixed of loosening in proportion and obtains powder or be pressed into moulding mixture after evenly; The auxiliary agent of loosening is that molecular formula is C
aH
bO
cN
dOrganism, ammonia, urea, the oxygen acid sodium of phosphorus, the oxygen acid ammonium of phosphorus, the oxygen acid sodium of nitrogen, the oxygen acid ammonium of nitrogen, the oxygen acid sodium of sulphur, the oxygen acid ammonium of sulphur, the oxygen acid sodium of chlorine, oxygen acid ammonium, sodium-chlor or the ammonium chloride of chlorine, be wherein one or more; A is 1～3 integer in the formula, and b is 4～9 integer, and c is 0～3 integer, and d is 1～2 integer; Raw material with loosen the auxiliary agent weight ratio in 1: 0.05～1.5 scopes;
Step 2. powder or 200～700 ℃ of roasting 0.5～10h of moulding mixture after with blend;
The grog of step 3. after with roasting directly carries out once wet magnetic separation, obtains magnetic part and nonmagnetic slip, and magnetic part is iron ore concentrate;
Step 4. obtains siliceous slag and high density boron magnesium mixing solutions with slurry filtration, adopts fractionation crystallization to obtain boric acid and magnesium salts, and filter residue is siliceous slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104555299A CN102605170B (en) | 2011-12-30 | 2011-12-30 | Method for effectively separating boron, magnesium and iron from paigeite based on chemical release reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104555299A CN102605170B (en) | 2011-12-30 | 2011-12-30 | Method for effectively separating boron, magnesium and iron from paigeite based on chemical release reaction |
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| Publication Number | Publication Date |
|---|---|
| CN102605170A true CN102605170A (en) | 2012-07-25 |
| CN102605170B CN102605170B (en) | 2013-10-16 |
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|---|---|---|---|
| CN2011104555299A Expired - Fee Related CN102605170B (en) | 2011-12-30 | 2011-12-30 | Method for effectively separating boron, magnesium and iron from paigeite based on chemical release reaction |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256242A (en) * | 1999-12-23 | 2000-06-14 | 化学工业部天津化工研究设计院 | Production process of boric acid and magnesium carbonate from boromagnesite |
| CN101172613A (en) * | 2007-10-10 | 2008-05-07 | 大连理工大学 | Method for activating ludwigite |
| CN101693543A (en) * | 2009-09-08 | 2010-04-14 | 东北大学 | High value-added greening comprehensive utilization method of boron concentrate, boron-containing iron concentrate and ludwigite |
-
2011
- 2011-12-30 CN CN2011104555299A patent/CN102605170B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256242A (en) * | 1999-12-23 | 2000-06-14 | 化学工业部天津化工研究设计院 | Production process of boric acid and magnesium carbonate from boromagnesite |
| CN101172613A (en) * | 2007-10-10 | 2008-05-07 | 大连理工大学 | Method for activating ludwigite |
| CN101693543A (en) * | 2009-09-08 | 2010-04-14 | 东北大学 | High value-added greening comprehensive utilization method of boron concentrate, boron-containing iron concentrate and ludwigite |
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|---|---|
| CN102605170B (en) | 2013-10-16 |
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Granted publication date: 20131016 Termination date: 20161230 |