DE3417272C2 - - Google Patents
Info
- Publication number
- DE3417272C2 DE3417272C2 DE19843417272 DE3417272A DE3417272C2 DE 3417272 C2 DE3417272 C2 DE 3417272C2 DE 19843417272 DE19843417272 DE 19843417272 DE 3417272 A DE3417272 A DE 3417272A DE 3417272 C2 DE3417272 C2 DE 3417272C2
- Authority
- DE
- Germany
- Prior art keywords
- coal
- particles
- sludge
- clay
- pyrite
- 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.)
- Expired
Links
- 239000003245 coal Substances 0.000 claims description 210
- 239000002245 particle Substances 0.000 claims description 192
- 239000002002 slurry Substances 0.000 claims description 73
- 239000004927 clay Substances 0.000 claims description 56
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims description 54
- 239000011028 pyrite Substances 0.000 claims description 54
- 229910052683 pyrite Inorganic materials 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 48
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 42
- 238000011282 treatment Methods 0.000 claims description 36
- 239000010802 sludge Substances 0.000 claims description 31
- 238000005188 flotation Methods 0.000 claims description 28
- 239000012535 impurity Substances 0.000 claims description 25
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 21
- 229910052717 sulfur Inorganic materials 0.000 claims description 20
- 239000011593 sulfur Substances 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 19
- 239000000725 suspension Substances 0.000 claims description 17
- 230000007935 neutral effect Effects 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 5
- 239000002956 ash Substances 0.000 description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- 238000000926 separation method Methods 0.000 description 25
- 239000006260 foam Substances 0.000 description 24
- 239000000084 colloidal system Substances 0.000 description 20
- 239000000126 substance Substances 0.000 description 20
- 239000000047 product Substances 0.000 description 18
- 239000003795 chemical substances by application Substances 0.000 description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 229910052799 carbon Inorganic materials 0.000 description 13
- 239000000463 material Substances 0.000 description 13
- 230000003472 neutralizing effect Effects 0.000 description 13
- 239000003250 coal slurry Substances 0.000 description 12
- 239000000356 contaminant Substances 0.000 description 12
- 239000007787 solid Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- 239000012736 aqueous medium Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000007800 oxidant agent Substances 0.000 description 10
- 210000004027 cell Anatomy 0.000 description 9
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 8
- 210000000497 foam cell Anatomy 0.000 description 8
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 7
- 239000000920 calcium hydroxide Substances 0.000 description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 7
- 238000001246 colloidal dispersion Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 239000000376 reactant Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000010454 slate Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 239000002609 medium Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 150000004763 sulfides Chemical class 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- -1 B. Clay Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000001935 peptisation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000007785 strong electrolyte Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 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
-
- 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
-
- 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/005—General arrangement of separating plant, e.g. flow sheets specially adapted for coal
Landscapes
- Liquid Carbonaceous Fuels (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843417272 DE3417272A1 (de) | 1984-05-10 | 1984-05-10 | Verfahren zum entfernen von schwefel und asche aus kohleteilchen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843417272 DE3417272A1 (de) | 1984-05-10 | 1984-05-10 | Verfahren zum entfernen von schwefel und asche aus kohleteilchen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3417272A1 DE3417272A1 (de) | 1985-11-21 |
| DE3417272C2 true DE3417272C2 (enrdf_load_stackoverflow) | 1987-12-23 |
Family
ID=6235432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19843417272 Granted DE3417272A1 (de) | 1984-05-10 | 1984-05-10 | Verfahren zum entfernen von schwefel und asche aus kohleteilchen |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3417272A1 (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4741839A (en) * | 1986-07-16 | 1988-05-03 | Heritage Industries Inc. | Ultrasonic vibrator tray processes and apparatus |
| DE4420210A1 (de) * | 1994-06-09 | 1995-12-14 | Donalies Michael Dipl Chem | Verfahren und Vorrichtung zur Trennung von Feststoffen und hydrophoben Substanzen in Suspension mit Hilfe von Ultraschall-Flotation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4326855A (en) * | 1979-11-08 | 1982-04-27 | Cottell Eric Charles | Process for beneficiating and stabilizing coal/oil/water fuels |
| US4328002A (en) * | 1981-06-15 | 1982-05-04 | Robert Bender | Methods of treating coal to remove sulfur and ash |
-
1984
- 1984-05-10 DE DE19843417272 patent/DE3417272A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3417272A1 (de) | 1985-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |