WO1991019541A1 - Verfahren zur verarbeitung belasteter rückstände aus der titanoxidgewinnung - Google Patents
Verfahren zur verarbeitung belasteter rückstände aus der titanoxidgewinnung Download PDFInfo
- Publication number
- WO1991019541A1 WO1991019541A1 PCT/EP1991/000866 EP9100866W WO9119541A1 WO 1991019541 A1 WO1991019541 A1 WO 1991019541A1 EP 9100866 W EP9100866 W EP 9100866W WO 9119541 A1 WO9119541 A1 WO 9119541A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- residues
- titanium oxide
- extraction
- exothermic reaction
- degrees
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000000605 extraction Methods 0.000 title claims abstract description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 15
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims abstract description 10
- 230000008020 evaporation Effects 0.000 claims abstract description 10
- 239000004566 building material Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000047 product Substances 0.000 claims abstract description 8
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052935 jarosite Inorganic materials 0.000 claims abstract description 6
- 239000011701 zinc Substances 0.000 claims abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- 239000001110 calcium chloride Substances 0.000 claims abstract description 5
- 235000011148 calcium chloride Nutrition 0.000 claims abstract description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims abstract description 5
- 239000011780 sodium chloride Substances 0.000 claims abstract description 5
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 238000004056 waste incineration Methods 0.000 claims description 4
- 239000002956 ash Substances 0.000 abstract description 10
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0481—Other specific industrial waste materials not provided for elsewhere in C04B18/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Definitions
- the invention relates to a method for processing contaminated residues from the titanium oxide extraction, which are subjected to an exothermic reaction in which a dry product is generated by water evaporation.
- EP 301 262 A1 discloses such a method for the further processing of contaminated residues from the extraction of titanium oxide, in which, in order to achieve an exothermic reaction by means of which the residues are dewatered, a metal-sulfate mixture containing at least 10% by weight of sulfuric acid is mixed with finely divided calcium oxide in a slight excess: there is a reaction at at least 110 degrees C. After the reaction there is a dry, dust-like powder.
- This powder is peletized with the addition of water and processed into a storage-stable bulk material.
- the invention has for its object to provide a method for processing contaminated residues from the extraction of titanium oxide by means of said back stand for a recyclable; Economic goods are implemented.
- the e-filter ashes used for neutralization are to a small extent contaminated with FCCD and PCCF and also contain more or less aluminum; This means that these e-filter ash also tend to form hydrogen when moistened with water.
- the mixture can contain contaminated residues from titanium oxide extraction, contaminated residues from zinc extraction using the jarosite process, E-filter ash and evaporation salts CaCl2 x 2H2O / NaCl from waste incineration plants to a temperature between 120 and 180 degrees C, preferably to 180 degrees C, and can be used for neutralization serving e-filter ash a pH value between 6.0 and 8.5 are maintained. It has surprisingly been found that if the pH range specified above with regard to the E-filter ash and the range for the reaction temperature also specified above are observed in the neutralized reaction product, the PCCD and PCCF fractions are destroyed and hydrogen formation can hardly be measured.
- reaction temperature between 120 degrees C and 130 degrees C, preferably 180 degrees C, it may be necessary to add 10-20% white fine lime, limestone powder or fluidized bed pockets to the E-filter ash.
- the building material mentioned can advantageously be used in underground construction.
- Waste salts e.g. Iron II sulfate with 20 - 35% free
- Titanium oxide extraction and residues from the zinc extraction according to the jarosite process are mixed) with E-filter ash and evaporation salts being added during the mixing process. It can be used from coal power plant ash.
- This mixing process creates an exothermic reaction that runs above about 75 degrees Celsius.
- drying product produced in this way can be processed by adding binders, such as cements, gypsum, lime, to an immediate, early or late-bearing, eluate-resistant building material for underground mining.
- binders such as cements, gypsum, lime
- the drying product Preferably for the production of the drying product; 25 - 33% of the residues listed above, depending on the composition.
- other mixing ratios are also possible, e.g. using lime.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904018568 DE4018568A1 (de) | 1989-11-09 | 1990-06-09 | Verfahren zur herstellung von eluatfestem wirtschaftsgut aus rueckstaenden chemischer prozesse, vorzugsweise verwendbar als baustoff fuer den untertagebergbau |
DEP4018568.0 | 1990-06-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991019541A1 true WO1991019541A1 (de) | 1991-12-26 |
Family
ID=6408146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1991/000866 WO1991019541A1 (de) | 1990-06-09 | 1991-05-08 | Verfahren zur verarbeitung belasteter rückstände aus der titanoxidgewinnung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0485550A1 (de) |
WO (1) | WO1991019541A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017081264A1 (de) * | 2015-11-11 | 2017-05-18 | Fels-Werke Gmbh | Düngemittelmischung und verfahren zu deren herstellung |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2082158A (en) * | 1980-08-16 | 1982-03-03 | Standard Messo Duisburg | Method for the simultaneous processing of iron sulphate and calcium chloride |
DE3743818A1 (de) * | 1987-12-23 | 1989-07-06 | Hoelter Heinz | Umwandlung von abfallstoffen aus trocken- oder quasitrockenentschwefelungsanlagen auf kalkbasis zu baustoffen fuer den untertagebergbau |
-
1991
- 1991-05-08 WO PCT/EP1991/000866 patent/WO1991019541A1/de not_active Application Discontinuation
- 1991-05-08 EP EP91909062A patent/EP0485550A1/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2082158A (en) * | 1980-08-16 | 1982-03-03 | Standard Messo Duisburg | Method for the simultaneous processing of iron sulphate and calcium chloride |
DE3743818A1 (de) * | 1987-12-23 | 1989-07-06 | Hoelter Heinz | Umwandlung von abfallstoffen aus trocken- oder quasitrockenentschwefelungsanlagen auf kalkbasis zu baustoffen fuer den untertagebergbau |
Non-Patent Citations (5)
Title |
---|
CHEMICAL ABSTRACTS, Band 102, Nr. 14, April 1985, Seite 322 * |
CHEMICAL ABSTRACTS, Band 102, Nr. 14, April 1985, Seite 322, Zusammenfassung Nr. 118563p, (Columbus, Ohio, US); & PL-A-126 315 (POLITECHNIKA SZCZECINSKA) 15-06-1984 * |
CHEMICAL ABSTRACTS, Band 95, Nr. 20, 16. November 1981, Seite 154 * |
CHEMICAL ABSTRACTS, Band 95, Nr. 20, 16. November 1981, Seite 154, Zusammenfassung Nr. 171887k, (Columbus, Ohio, US); J.M. BLANCHARD et al.: "Recovery of chemicals from waste iron sulfate. A laboratory test of the production of iron chloride and/or electrolytic iron", & RESOUR. CONSERV. 1981, 6(1), 21-7 * |
WPIL, FILE SUPPLIER, AN=91-149481, Derwent Publications Ltd, (London, GB); & DE-A-3 937 312 (HOLTER) (Prioritäts-Datum: 9. November 1989, Dokumente die die Gültigkeit der Priorität fraglich enscheinen lassen) (Kat. L) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017081264A1 (de) * | 2015-11-11 | 2017-05-18 | Fels-Werke Gmbh | Düngemittelmischung und verfahren zu deren herstellung |
Also Published As
Publication number | Publication date |
---|---|
EP0485550A1 (de) | 1992-05-20 |
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