UST105404I4 - Beneficiation of phosphate ores containing surface activated silica - Google Patents
Beneficiation of phosphate ores containing surface activated silica Download PDFInfo
- Publication number
- UST105404I4 UST105404I4 US06/650,390 US65039084A UST105404I4 US T105404 I4 UST105404 I4 US T105404I4 US 65039084 A US65039084 A US 65039084A US T105404 I4 UST105404 I4 US T105404I4
- Authority
- US
- United States
- Prior art keywords
- phosphate
- silica
- collector
- flotation
- activated silica
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910019142 PO4 Inorganic materials 0.000 title abstract 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title abstract 9
- 239000010452 phosphate Substances 0.000 title abstract 9
- 239000012141 concentrate Substances 0.000 abstract 3
- 238000005188 flotation Methods 0.000 abstract 3
- 239000000377 silicon dioxide Substances 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 2
- 239000000194 fatty acid Substances 0.000 abstract 2
- 229930195729 fatty acid Natural products 0.000 abstract 2
- 150000004665 fatty acids Chemical class 0.000 abstract 2
- 238000009291 froth flotation Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000003607 modifier Substances 0.000 abstract 2
- -1 alkyl diphosphonic acid Chemical compound 0.000 abstract 1
- 150000001412 amines Chemical class 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 150000004760 silicates Chemical class 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
- B03D1/021—Froth-flotation processes for treatment of phosphate ores
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Silicon Compounds (AREA)
Abstract
A phosphate ore flotation process comprising subjecting a phosphate ore containing surface-activated silica and silicates to froth flotation in the presence of a fatty-acid collector, recovering the phosphate concentrate from the overflow; removing the fatty acid collector from the phosphate concentrate in the presence of a sulfuric acid deoiling agent; subjecting the phosphate concentrate to a reverse froth flotation in the presence of a silica collector and a modifier, said silica collector being an amine and said modifier being either alkyl diphosphonic acid, or being HF; removing the separated silica from the overflow; and recovering the phosphate product in the underflow. The process of the present invention not only overcomes the problems of activated silica flotation, but also results in greatly improved grade and/or recovery of phosphate product in comparison to present conventional phosphate ore flotation processing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/650,390 UST105404I4 (en) | 1984-09-14 | 1984-09-14 | Beneficiation of phosphate ores containing surface activated silica |
| US06/680,117 US4565625A (en) | 1984-09-14 | 1984-12-10 | Beneficiation of phosphate ores containing surface activated silica |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/650,390 UST105404I4 (en) | 1984-09-14 | 1984-09-14 | Beneficiation of phosphate ores containing surface activated silica |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/680,117 Continuation US4565625A (en) | 1984-09-14 | 1984-12-10 | Beneficiation of phosphate ores containing surface activated silica |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST105404I4 true UST105404I4 (en) | 1985-05-07 |
Family
ID=24608702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/650,390 Pending UST105404I4 (en) | 1984-09-14 | 1984-09-14 | Beneficiation of phosphate ores containing surface activated silica |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST105404I4 (en) |
-
1984
- 1984-09-14 US US06/650,390 patent/UST105404I4/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STPP | Information on status: patent application and granting procedure in general |
Free format text: DEFENSIVE PUBLICATION OR SIR FILE |