ES8102983A1 - Procedimiento para reciclar azufre a partir de soluciones residuales - Google Patents
Procedimiento para reciclar azufre a partir de soluciones residualesInfo
- Publication number
- ES8102983A1 ES8102983A1 ES492942A ES492942A ES8102983A1 ES 8102983 A1 ES8102983 A1 ES 8102983A1 ES 492942 A ES492942 A ES 492942A ES 492942 A ES492942 A ES 492942A ES 8102983 A1 ES8102983 A1 ES 8102983A1
- Authority
- ES
- Spain
- Prior art keywords
- sulphur
- alkali metal
- separated
- heavy metal
- decolorized filtrate
- 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
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title abstract 4
- 239000005864 Sulphur Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 238000004064 recycling Methods 0.000 title 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 3
- 150000001340 alkali metals Chemical class 0.000 abstract 2
- 239000000706 filtrate Substances 0.000 abstract 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract 2
- 229920001021 polysulfide Polymers 0.000 abstract 2
- -1 alkali metal sulphides Chemical class 0.000 abstract 1
- 238000004042 decolorization Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 150000004692 metal hydroxides Chemical class 0.000 abstract 1
- 239000005077 polysulfide Substances 0.000 abstract 1
- 150000008117 polysulfides Polymers 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/22—Alkali metal sulfides or polysulfides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Removal Of Specific Substances (AREA)
Abstract
PROCEDIMIENTO PARA RECICLAR AZUFRE A PARTIR DE SOLUCIONES ACUOSAS COLOREADAS RESIDUALES, QUE CONTIENEN SULFUROS ALCALINOS Y POLISULFUROS ALCALINOS. CONSISTE EN COMBINAR LA SOLUCION CON UNA CANTIDAD SUFICIENTE , PARA LA DECOLORACION, DE UN HIDROXIDO O DE UNA SAL DE UN METAL PESADO Y SEPARAR, POR UNA PARTE, EL PRECIPITADO FORMADO A PARTIR DEL DECOLORANTE, Y POR LA OTRA, EL FILTRADO DECOLORADO QUE CONTIENE EL AZUFRE. DE ESTE FILTRADO DECOLORADO SE PUEDE SEPARAR EL AZUFRE EN MEDIO ACIDO POR PRECIPITACION, MEDIANTE INSUFLADO DE DIOXIDO DE AZUFRE O ADICION DE TIOSULFURO, O BIEN UTILIZAR EL POLISULFURO ALCALINO CONTENIDO EN DICHO FILTRADO PARA LA OBTENCION DE COLORANTES AL AZUFRE. COMO HIDROXIDOS PARA LA DECOLORACION SE EMPLEAN LOS CORRESPONDIENTES AL CROMO, COBALTO, NIQUEL MANGANESO Y ESPECIALMENTE LOS DE HIERRO Y CINC; COMO SALES SE EMPLEAN ANTE TODO LAS SOLUBLES EN ACIDOS INORGANICOS, TALES COMO CLORUROS, SULFUROS Y NITRATOS, CORRESPONDIENTES A LOS METALES CITADOS. DE USO EN LA INDUSTRIA DE COLORANTES AL AZUFRE PARA RECICLAR LOS FILTRADOS RESIDUALES. C
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792926528 DE2926528A1 (de) | 1979-06-30 | 1979-06-30 | Verfahren zur herstellung von recyclisierbarem schwefel |
| DE19803020894 DE3020894A1 (de) | 1980-06-02 | 1980-06-02 | Verfahren zur recyclisierung von schwefel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES492942A0 ES492942A0 (es) | 1981-02-16 |
| ES8102983A1 true ES8102983A1 (es) | 1981-02-16 |
Family
ID=25779771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES492942A Expired ES8102983A1 (es) | 1979-06-30 | 1980-06-30 | Procedimiento para reciclar azufre a partir de soluciones residuales |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0022197B1 (es) |
| AR (1) | AR225182A1 (es) |
| BR (1) | BR8004045A (es) |
| DE (1) | DE3061611D1 (es) |
| ES (1) | ES8102983A1 (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3631290A1 (de) * | 1986-09-13 | 1988-03-24 | Budenheim Rud A Oetker Chemie | Verfahren zur behandlung von nassverfahrensphosphorsaeure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT212337B (de) * | 1958-06-04 | 1960-12-12 | Spinnfaser Ag | Verfahren zur Wiedergewinnung des Schwefels aus den Alkalipolysulfiden, die beim Herauslösen des Schwefels aus Aktivkohlefiltern in Viskosefabriken entstehen |
| GB1195289A (en) * | 1966-11-10 | 1970-06-17 | Universal Oil Prod Co | Oxidation of Soluble Sulfide Compounds |
| DE2740855C2 (de) * | 1977-09-10 | 1987-03-12 | Schumacher'sche Fabrik Gmbh & Co Kg, 7120 Bietigheim-Bissingen | Verfahren zur Abwasseraufbereitung bei Küpenfärbeprozessen mit Abtrennung des Küpenfarbstoffes |
-
1980
- 1980-06-19 DE DE8080103417T patent/DE3061611D1/de not_active Expired
- 1980-06-19 EP EP80103417A patent/EP0022197B1/de not_active Expired
- 1980-06-27 AR AR281572A patent/AR225182A1/es active
- 1980-06-27 BR BR8004045A patent/BR8004045A/pt unknown
- 1980-06-30 ES ES492942A patent/ES8102983A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0022197A1 (de) | 1981-01-14 |
| ES492942A0 (es) | 1981-02-16 |
| AR225182A1 (es) | 1982-02-26 |
| BR8004045A (pt) | 1981-01-21 |
| DE3061611D1 (en) | 1983-02-17 |
| EP0022197B1 (de) | 1983-01-12 |
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