SE451999B - Ferric sulphate prodn. - Google Patents
Ferric sulphate prodn.Info
- Publication number
- SE451999B SE451999B SE8304826A SE8304826A SE451999B SE 451999 B SE451999 B SE 451999B SE 8304826 A SE8304826 A SE 8304826A SE 8304826 A SE8304826 A SE 8304826A SE 451999 B SE451999 B SE 451999B
- Authority
- SE
- Sweden
- Prior art keywords
- sulfuric acid
- fe2o3
- concentration
- filtered
- weight
- Prior art date
Links
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title abstract 2
- 229910021653 sulphate ion Inorganic materials 0.000 title abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 235000016068 Berberis vulgaris Nutrition 0.000 claims 1
- 241000335053 Beta vulgaris Species 0.000 claims 1
- 235000013351 cheese Nutrition 0.000 claims 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims 1
- 230000008929 regeneration Effects 0.000 claims 1
- 238000011069 regeneration method Methods 0.000 claims 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 6
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011343 solid material Substances 0.000 abstract description 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 2
- 239000001117 sulphuric acid Substances 0.000 abstract 2
- 229910000360 iron(III) sulfate Inorganic materials 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000007306 turnover Effects 0.000 description 7
- 230000035484 reaction time Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- -1 17 kg of conc Substances 0.000 description 1
- 101000713575 Homo sapiens Tubulin beta-3 chain Proteins 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 102100036790 Tubulin beta-3 chain Human genes 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/14—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
- Primary Cells (AREA)
- Electrolytic Production Of Metals (AREA)
- Secondary Cells (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Catalysts (AREA)
Abstract
Description
451 999- 2 Sättet att framställa järn(III)-sulfat i form av en stabil lösning kännetecknas enligt uppfinningen av att svavel- syra med en koncentration av 35 - 45 vikts-% och finkornigr järn(III)-oxid i ett Fe2O3-HZSO4-förhållande svarande mot 100 - 150, företrädesvis 105 - 120 %, speciellt omkring 110 % av stökiometrisk mängd får reagera vid en temperatur av minst 1oo°c, företrädesvis 1oo - 12s°c, speciellt 105 -_11o°c~t111g dess att minst 85 %, företrädesvis 90 - 100 % av svavelsyran förbrukats, varefter återstående fast material avskiljes och '-erhâllen lösning innehållande järn(III)-sulfat, om så erford- ras, späds med vatten till en koncentration av högst 47vüds-%, företräaesvis 40 - 45 vikts-% sam Fe2(so ) - * 4 3 Primärt erhålles enligt uppfinningen en järn(III)-sulfat- lösning med 40 - 52 % Fe2(SO4)3. För att uppnå stabila lös- ningar späds primärt erhållna lösningar med en koncentration _över 47 % Fe2(SO4)3 med vatten till koncentrationen 47 % eller lägre. _ För att uppnå en hög omsättning av svavelsyra 90 - 100 % är det av största vikt att hålla hög temperatur, minst 100°C. WS Med ett måttligt överskott, av järn(III)-oxid, ca 10 %, kan reaktionshastigheten och syraomsättningen ökas högst väsent- ligt. Sålunda kan 90 - 100 % svavelsyraomsättning uppnås inom 10 - 20 timmars reaktionstid. . The method of preparing ferrous sulphate in the form of a stable solution is characterized according to the invention by sulfuric acid having a concentration of 35-45% by weight and fine-grained ferric oxide in a Fe 2 O 3 -H 2 SO 4 ratio corresponding to 100 - 150, preferably 105 - 120%, especially about 110% of the stoichiometric amount is allowed to react at a temperature of at least 100 ° C, preferably 100-125 ° C, especially 105 -110 ° C until at least 85%, preferably 90-100% of the sulfuric acid is consumed, after which the remaining solid is separated and the solution containing ferrous sulphate, if required, is diluted with water to a concentration of not more than 47% by weight, preferably 40%. - 45 wt. In order to achieve stable solutions, primarily obtained solutions are diluted with a concentration above 47% Fe 2 (SO 4) 3 with water to a concentration of 47% or lower. In order to achieve a high turnover of sulfuric acid 90 - 100%, it is of the utmost importance to maintain a high temperature, at least 100 ° C. WS With a moderate excess of ferric oxide, about 10%, the reaction rate and acid turnover can be increased very significantly. Thus, 90 - 100% sulfuric acid conversion can be achieved within 10 - 20 hours reaction time. .
Med liten partikelstorlek påverkas reaktionshastigheten' positivt men återstående oreagerat fast material blir mycket svârfiltrerat. Med hänsyn härtill användes med fördel ett järnoxidmaterial med en partikelstorlek i Qmrådet 0,01 - 0,05 mm) Filtreringen försvåras även genom hög svavelsyrakoncentra- tion och lång reaktionstid. Vid svavelsyrakoncentrationer i närheten av övre gränsen av intervallet 35.- 45 vikts-% bör därför reaktionen avbrytas,_innan all svavelsyra förbrukats.With a small particle size, the reaction rate is positively affected, but the remaining unreacted solid material becomes very difficult to filter. In view of this, an iron oxide material with a particle size in the range 0.01 - 0.05 mm is advantageously used. The filtration is also made more difficult by high sulfuric acid concentration and long reaction time. Therefore, at sulfuric acid concentrations in the vicinity of the upper limit of the 35-45% by weight range, the reaction should be stopped before all sulfuric acid has been consumed.
Uppfinningen kommer i det följande att illustreras yt- terligare med hjälp av ett antal utföringsexempel.The invention will be further illustrated in the following by means of a number of exemplary embodiments.
Exempel_ Allmänt Försöken enligt Exempel 1 - 5 samt I utfördes i ett 50 liters slutet reaktionskärl försett med elektriskt värme-_ _/ 451 999 th) i element, temperaturreglering och omrörare. I reaktionskärlet satsades bestämda mängder av vatten, kisaska och sist kon- I centrerad svavelsyra (96 %Fig). Vid tillsatsen av svavelsyra steg temperaturen hastigt till kokpunkten och justerades sedan in på önskat värde med hjälp av temperaturreglerings- utrustningen.Example_ General The experiments according to Examples 1-5 and I were carried out in a 50 liter closed reaction vessel equipped with electric heating (451,999 th) in elements, temperature control and stirrer. In the reaction vessel, certain amounts of water, kis ash and finally concentrated sulfuric acid (96% Fig) were charged. During the addition of sulfuric acid, the temperature rose rapidly to the boiling point and was then adjusted to the desired value with the aid of the temperature control equipment.
Exempel_1 10 kg kisaska med partikelstorlek < 0,01 mm och 86 % Fe203 innehåll, 25 kg vatten och 16,5 kg konc. svavelsyra satsades, S04 och Fe 0 och en 2 2 3 svavelsyrakoncentration av 38 %. Temperaturen hölls strax under vilket innebär stökiometriska mängder H kokpunkten,ca 107°C. Prover tagna under försöket gav följande du resultat : 7 .Example_1 10 kg of kis ash with particle size <0.01 mm and 86% Fe 2 O 3 content, 25 kg of water and 16.5 kg of conc. sulfuric acid was charged, SO 4 and Fe 2 and a sulfuric acid concentration of 38%. The temperature was kept just below which means stoichiometric amounts of H boiling point, about 107 ° C. Samples taken during the experiment gave the following results: 7.
Reaxtionstia h 3 ' e zo Syraomsättning % _ 68,5 |85,2 97,2 Halt Fe2(SO4)3 2 34,2 39,7 45,9 _ Filtrerharhet svår- svårf ' mycket svârf filtrerat filtrerat 0 filtrerat _ Exempel 2.. g V " 10 kg kisaska med partikelstorlek 0,01 - 0,05 mm och 884% Fe2O3 innehåll, 26 kg vatten, 12 kg konc. svavelsyra sat- sades, vilket innebär stökiometriska mängder HZSO4 och Fe2O3 och en svavelsyrakoncentration av 38 %. Temperaturen hölls vid ca 107°C. Följande resultat erhölls : Reaktionstid h 4 - 8 20 7 Syraomsättningu % 67,0 81,1 ' 88,2 Halt Fe2(SO4)3 % 33,4 37,9 40,4 Filtrerbarhet lätt- lätt- tämligen filtrerat filtrerat lättfiltrerat' Exempel 3 10 kg kisaska med partikelstorlek 0,01 - 0,05 mm och 88 % Fe2O3, 19 kg vatten, 17 kg konc, svavelsyra satsades, vilket, innebär stökiometriska mängder HZSO4 och Fe203 och en svavel- syrakoncenfiration av 45 %. _Temperaturen hölls_vid ca 115oC (dvs strax under kokpunkten). Resultat : 451 999 4 Reaktibnstid h 3 46 18 syraomsättning % 69,6 ,_ ss 4 93,4 Halt Fe2(SQ4)3 % 38,3 _ 745,7 48,4 - Filtrerbarhet tämligen tämligen svår- lätt- lätt- filtrerat filtrerat filtrerat ExemQel'4 överskott av klsaska, svavelsyrakoncentration 38 %, 10 kg kisaska med fiartikelstorlek 0,01 - 0,05 mm och 88 % Fe203, 23 kg vatten, 15 kg konc. svavelsyra satsades, vilket innebär överskott av kisaska och en svavelsyrakoncentration av 38 %.Reaction time h 3 'e zo Acid conversion% _ 68.5 | 85.2 97.2 Content Fe2 (SO4) 3 2 34.2 39.7 45.9 _ Filter hardness difficult- difficult very difficult filtered filtered 0 filtered _ Example 2 .. g V "10 kg kis ash with particle size 0.01 - 0.05 mm and 884% Fe2O3 content, 26 kg water, 12 kg conc. sulfuric acid was added, which means stoichiometric amounts of HZSO4 and Fe2O3 and a sulfuric acid concentration of 38% The temperature was maintained at about 107 DEG C. The following results were obtained: Reaction time h 4 - 8 20 7 Acid turnover% 67.0 81.1 '88.2 Content Fe2 (SO4) 3% 33.4 37.9 40.4 Filterability easy Example 3 10 kg of kis ash with a particle size of 0.01 - 0.05 mm and 88% Fe 2 O 3, 19 kg of water, 17 kg of conc, sulfuric acid was charged, which means stoichiometric amounts of H 2 SO 4 and Fe 2 O 3 and a sulfur - acid concentration of 45% _The temperature was maintained_ at about 115oC (ie just below boiling point) Result: 451 999 4 Reactive time h 3 46 18 acid turnover% 69.6, _ ss 4 93.4 Content Fe2 (SQ4 ) 3% 38.3 _ 745.7 48.4 - Filterability rather rather difficult- easy- easily- filtered filtered filtered ExemQel'4 excess klsaska, sulfuric acid concentration 38%, 10 kg kisaske with fi article size 0.01 - 0.05 mm and 88% Fe 2 O 3, 23 kg water, 15 kg conc. sulfuric acid was invested, which means excess kisaska and a sulfuric acid concentration of 38%.
Temperaturen hölls vid ca 107°C. Försöket gav som resultat : Reaktionstid h 4 ' _ 8 20 Syraomsättning % 77,6 - 0 90,8_ 99,3 Halt Fe2(so4)3_% 36,1 }_ 42,5 47,6 Filtrerbarhet lätt- lätt- 1 lätt- filtrerat filtrerat filtrerat Exempel'5 Som i exempel 4 men med övertryck, temperatur ca 120°C.The temperature was maintained at about 107 ° C. The experiment gave as a result: Reaction time h 4 '_ 8 20 Acid turnover% 77.6 - 0 90.8_ 99.3 Content Fe2 (so4) 3_% 36.1} _ 42.5 47.6 Filterability easy- easy- 1 easy filtered filtered filtered Example '5 As in Example 4 but with overpressure, temperature approx. 120 ° C.
Resultat : Reaktionstid h 2 * 5 " 10 Syraomsättning % 70,80 ' 91,3 98,7 Halt Fe2(SO4)3 % 34,5 m - 43,2 46,9 Filtrerbarhet. _ lätt- lätt- lätt- filtrerat filtrerat filtrerat Exempel I Kjämförelseförsök) Som i exempel 4 men med en temperatur av ca 90oC. Resultat: Reaktionstia 5 5 10 _ - 22 Syraomsättning 1% 52,1 I 67,4 ~ 75,6 Halt re2(so4)3 % 26,2 32,9' 35,0 Piltrerbarhet* l lätt- 'e lätt- lätt- filtrerat' filtrerat }f11treratResult: Reaction time h 2 * 5 "10 Acid turnover% 70.80 '91.3 98.7 Content Fe2 (SO4) 3% 34.5 m - 43.2 46.9 Filterability. _ Easy- easy- easy- filtered filtered filtered Example I Comparative experiment) As in Example 4 but with a temperature of about 90 ° C. Result: Reaction path 5 5 10 _ - 22 Acid turnover 1% 52.1 I 67.4 ~ 75.6 Content re2 (so4) 3% 26.2 32.9 '35.0 Filterability * l easily-' e easily- easily- filtered 'filtered} filtered
Claims (2)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8304826A SE451999B (en) | 1983-09-08 | 1983-09-08 | Ferric sulphate prodn. |
| FI843491A FI74691C (en) | 1983-09-08 | 1984-09-06 | Methods of preparing iron (III) sulfate |
| NO843567A NO159374C (en) | 1983-09-08 | 1984-09-07 | PROCEDURE FOR THE PREPARATION OF IRON (III) SULPHATE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8304826A SE451999B (en) | 1983-09-08 | 1983-09-08 | Ferric sulphate prodn. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE8304826D0 SE8304826D0 (en) | 1983-09-08 |
| SE8304826L SE8304826L (en) | 1985-03-09 |
| SE451999B true SE451999B (en) | 1987-11-09 |
Family
ID=20352415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8304826A SE451999B (en) | 1983-09-08 | 1983-09-08 | Ferric sulphate prodn. |
Country Status (3)
| Country | Link |
|---|---|
| FI (1) | FI74691C (en) |
| NO (1) | NO159374C (en) |
| SE (1) | SE451999B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1067095A1 (en) * | 1999-07-08 | 2001-01-10 | Taki Chemical Co., Ltd. | A method for the manufacture of ferric sulfate solution and a water treatment agent using the same |
| CN100335420C (en) * | 2005-09-27 | 2007-09-05 | 暨南大学 | Production process of solid composite ferric sulfate polymer |
-
1983
- 1983-09-08 SE SE8304826A patent/SE451999B/en not_active IP Right Cessation
-
1984
- 1984-09-06 FI FI843491A patent/FI74691C/en not_active IP Right Cessation
- 1984-09-07 NO NO843567A patent/NO159374C/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1067095A1 (en) * | 1999-07-08 | 2001-01-10 | Taki Chemical Co., Ltd. | A method for the manufacture of ferric sulfate solution and a water treatment agent using the same |
| US6375919B1 (en) | 1999-07-08 | 2002-04-23 | Taki Chemical Co., Ltd. | Method for the manufacture of ferric sulfate solution and a water treatment agent using the same |
| CN100335420C (en) * | 2005-09-27 | 2007-09-05 | 暨南大学 | Production process of solid composite ferric sulfate polymer |
Also Published As
| Publication number | Publication date |
|---|---|
| NO843567L (en) | 1985-03-11 |
| FI843491L (en) | 1985-03-09 |
| FI843491A0 (en) | 1984-09-06 |
| FI74691B (en) | 1987-11-30 |
| NO159374C (en) | 1988-12-21 |
| FI74691C (en) | 1993-06-05 |
| NO159374B (en) | 1988-09-12 |
| SE8304826L (en) | 1985-03-09 |
| SE8304826D0 (en) | 1983-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4113588A (en) | Process for recovery of waste H2 SO4 and HCl | |
| JPS58110435A (en) | Manufacture of ferric potassium | |
| IE43467B1 (en) | Treatment of sulphur-and-zinc containing ore or concentrate | |
| US3691038A (en) | Process for the recovery of zinc from zinc- and iron-containing materials | |
| CA1046287A (en) | Atmospheric leaching of matte containing iron | |
| US2876065A (en) | Process for producing pure ammonium perrhenate and other rhenium compounds | |
| DE19519328C1 (en) | Process for the preparation of basic cobalt (II) carbonates, the cobalt (II) carbonates produced by the process and their use | |
| SE451999B (en) | Ferric sulphate prodn. | |
| US4210502A (en) | Process for recovery of waste H2 SO4 and HCl | |
| FI65813C (en) | HYDROMETALLURGICAL METHOD FOR BEHANDLING AV NICKELSKAERSTEN | |
| US3148051A (en) | Process for the production of metallic copper powder and ammonium sulfate from copper sulfate solutions | |
| US1891911A (en) | Process of decomposing titanium ores | |
| US3630669A (en) | Process for removing impurities in the liquid of zinc refining by wet method | |
| DE69006334T2 (en) | Process for the extraction of gallium from basic solutions. | |
| US2231181A (en) | Process of reducing ferric compounds | |
| JPS5930649B2 (en) | Uranium recovery method from wet phosphoric acid | |
| CA1061283A (en) | Process for removing copper from copper anode slime | |
| NO152798B (en) | PROCEDURE FOR DISSOLUTING NON-IRON METALS IN OXYGENIC COMPOUNDS | |
| US3755111A (en) | Elimination of floating slime during electrolytic refining of copper | |
| US3443893A (en) | Recovery of copper and cyanide values from cuprous cyanides | |
| GB2088842A (en) | Separation of cobalt and nickel | |
| US4214900A (en) | Production of nonferrous metals with low selenium contents | |
| EP0039837A1 (en) | Process for the oxidation of ferrous ions to the ferric state in sulfate leach solutions | |
| CN109336191A (en) | A method of foreign ion cadmium in removal sulphate crystal post mother liquor | |
| Cognet et al. | Copper extraction by LIX 64N: comparison of chloride and sulfate solutions according to pH and acid concentration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
Ref document number: 8304826-4 Format of ref document f/p: F |
|
| NUG | Patent has lapsed |
Ref document number: 8304826-4 Format of ref document f/p: F |