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Get PricePyrophoric iron sulfide is formed by the action of corrosive sulfur compounds on iron and steel in process facilities particularly in vessels storage tanks and pipeline scraper traps If such equipment has contained asphalt aromatic tars sour crude highsulfur fuel oil aromatic gases and similar products the potential exists for the formation of black or brownishcolored pyrophoric iron
Pyrophoric iron sulfide is formed by the action of corrosive sulfur compounds on iron and steel in process facilities particularly in vessels storage tanks and pipeline scraper traps If such equipment has contained asphalt aromatic tars sour crude highsulfur fuel oil aromatic gases and similar products the potential exists for the formation of black or brownishcolored pyrophoric iron
Further DetailsJuergen Schieber 2011 Iron Sulfide Formation Encyclopedia of Geobiology Springer Verlag J Reitner V Thiel Eds p 486502 2 IRON SULFIDE FORMATION There has been a great deal of research into the formation of sedimentary iron sulfide minerals because their history is intertwined with the biogeochemical cycles of iron sulfur
Further DetailsIron sulfides occur in sediments from a wide range of depositional environments from the deep sea to the nonmarine and the principal mineral in the rock record is pyrite FeS 2 cubic Its dimorph marcasite orthorhombic is considered metastable and apt to invert to pyrite over geologic time Murowchick 1992 but is probably more widespread than commonly acknowledged Schieber 2007
Further DetailsMay 01 2018 · 2 Iron sulfide formation and transformation at high temperature The observed transformation sequence for iron sulfides under these conditions was mackinawite 1 day → troilite 4 days → pyrrhotite 7 days → pyrite 12pyrrhotite 21 days The thickness of iron sulfide layer increased with time 3
Further DetailsJul 21 2017 · While the detailed microbial mechanisms for the formation of iron pyrite are still far from clear a variety of different iron sulfide polymorphs have been reported to occur8−11 In contrast to the biogenic formation of iron pyrite its formation during metal corrosion is much better understood including the conditions under which nonstoichiometric
Further DetailsFeb 10 2017 · An aerosolassisted chemical vapor method leading to iron sulfide scales of varying phases and morphologies by reaction of pipeline steels with sulfur compounds has been developed This chemical vapor reaction methodology is useful for generating model iron sulfide scales pertinent to the interaction of sour crude oil with piplelines used in the oil and gas industry
Further DetailsInitially almost all the surface sites can interact readily with H 2 S to form a layer of iron sulfides Over longer reaction times reaction occurs with deeper sites to form bulk sulfides Regeneration of ferric hydroxide by oxidation with oxygen converts Fe 2 to Fe 3 and S 2 anions are replaced by O 2 with formation of elemental sulfur
Further DetailsSulfide to Sulfate Reaction Mechanism A Study of the Sulfide to Sulfate Reaction Mechanism as it Relates to the Formation of Acid Mine Waters Ohio State University Research Foundation ColumbusOhio 43210 for the FEDERAL WATER POLLUTION CONTROL ADMINISTRATION DEPARTMENT OF THE INTERIOR Program Number FWPCA Grant No 14010 FPS February 1970
Further DetailsAsal Djibouti Criaud Fouillac 1989 These scales are usually intermixed with amorphous silica or with metal mostly iron The study of iron sulfide scale formation is also of great importance since it is the most abundant component in sulfiderich scales
Further DetailsPyrophoric iron sulfide is formed by the action of corrosive sulfur compounds on iron and steel in process facilities particularly in vessels storage tanks and pipeline scraper traps If such equipment has contained asphalt aromatic tars sour crude highsulfur fuel oil aromatic gases and similar products the potential exists for the formation of black or brownishcolored pyrophoric iron sulfide scale powder
Further DetailsJuergen Schieber 2011 Iron Sulfide Formation Encyclopedia of Geobiology Springer Verlag J Reitner V Thiel Eds p 486502 2 IRON SULFIDE FORMATION There has been a great deal of research into the formation of sedimentary iron sulfide minerals because their history is intertwined with the biogeochemical cycles of iron sulfur
Further DetailsFeb 10 2017 · An aerosolassisted chemical vapor method leading to iron sulfide scales of varying phases and morphologies by reaction of pipeline steels with sulfur compounds has been developed This chemical vapor reaction methodology is useful for generating model iron sulfide scales pertinent to the interaction of sour crude oil with piplelines used in the oil and gas industry
Further DetailsJul 21 2017 · While the detailed microbial mechanisms for the formation of iron pyrite are still far from clear a variety of different iron sulfide polymorphs have been reported to occur8−11 In contrast to the biogenic formation of iron pyrite its formation during metal corrosion is much better understood including the conditions under which nonstoichiometric
Further DetailsAt high vacuum the ratio was 0575 Sulfur was absent from the black deposits when the cans were sealed without evacuation even when high levels of cystine were added In commercially packed shrimp the sulfur to iron ratio was 0322 which is consistent with a deposit of mixed oxides of iron combined with ferrous sulfide
Further DetailsFor example accumulation of iron sulfide in the critical near wellbore area can cause loss of performance of disposal wells 1 water supply wells 2 water injectors 35 and gas wells 67 Iron sulfide forms in the wellbore area as a result of the reaction of hydrogen sulfide and iron Hydrogen sulfide originates downhole from several sources including thermal decomposition of drilling mud additives 8 sulfate
Further DetailsWhen these sulfur compounds on the vessel wall of iron and iron oxide longterm corrosion will generate iron sulfide Fe2Ss Iron sulfide a dark brown or black mass with metallic luster can spontaneously ignite when exposed to oxygen in the air It is easier to ignite when exposed to air The ignition point of the iron sulfide is about 40
Further DetailsDec 05 2019 · It is formed by reaction of hydrogen sulfide with carbon steel The iron in the steel reacts with hydrogen sulfide to create an iron crust scale on the metal surface When a refinery processes sour crude oil the hydrogen sulfide present in the crude oil causes this problem to develop When production stops for maintenance work any iron sulfide present can react with the air through an oxidation reaction
Further DetailsMultiChem provides a number of specialty chemicals to remove iron sulfide all specifically designed to attack your unique production challenges in the most effective way possible Our approach is tailored to your own system conditions and operating parameters for the best in corrosion protection
Further DetailsSynthetic Sorbent Materials Based on Metal Sulphides and Oxides focuses on development of inorganic nanomaterials for removal of metallic species from the aqueous environment General synthetic methods to prepare such materials are lacking This book investigates problems of controlled synthesis of these materials and the effect of their morphological characteristics on their sorption capacity
Further Detailsdeposits are initiated via formation of FeS particles in suspension by reaction of H2S or organic sulphides with iron oxides from upstream corrosion processes leading to particulate fouling An alternate view is that a film of iron sulphide forms first on the surface the carbonaceous mesophase then wets the iron sulphide surface leading to a
Further DetailsMay 06 2016 · Introduction Iron technology first appears in the African continent in the 1st millennium BCE and the term Iron Age is generally used certainly south of the Sahara to describe ironusing communities in Africa until the modern historical thus covers a very long period of time and is used to describe a great variety of different societies from simple villagebased farmers and nomadic
Further Details172 The Mechanism of the Reaction of Moist Hydrogen Sulphide with Iron 173 Blistering of Steel in Hydrogen Sulphide Solutions 174 Effect of Composition and Structure of Steel on its Susceptibility to Embrittlement by Hydrogen Sulphide 175 Practical Measures Against Sulphide Corrosion Cracking of Steel in Service 176 Conclusions
Further Detailsof iron and dissolved sulphide result in iron sulphide scale deposits Criaud and Fouillac 1989 High enthalpy and low salinity fluids usually form silica scale eg certain wells in Iceland On the other hand high temperature liquids with high TDS content yield both siliceous and sulphide scale with lead sulphide being one of the major
Further DetailsCapacity:0.18-7 (m ³/min)
Suitable Materials:Copper, zinc, lead, nickel, gold and other non-ferrous metals, ferrous and non-metal.
Major Equipment:Jaw crusher, ball mill, sprial classifier, flotation machine, concentrator machine and dryer machine
Production Capacity: 25-30TPH
Diameter of Outer Cylinder:2.5-3.6m
Applied Material:Mineral ores, sand, ore powder, metal powder, gypsum powder, clay, coal slime, coal powder, sawdust, wood, fertilizer, coconut shell, palm shell, etc.
Feeding Size:0-350mm
Processing Capacity:60-520TPH
Applied Materials:River pebbles, rocks (limestone, granite, basalt, diabase, andesite, etc.), ore tailings, artificial sand stone chips.
Feeding Granularity: 120-1500mm
Production Capacity: 1-2200t/h
Feed Opening:150×250-1600×2100mm
Feeding Size: 65-300mm
Discharging Size: 3-60mm
Production Capacity: 12-1000t/h
Production Capacity: 10-30TPH
Humidity of Raw Materias: 20±3(%)
Application Area:Slag industry, building material, metallurgy industry, ore processing industry, chemical industry, cement plant.
Feeding Granularity:0-3mm
Production Capacity:10-280TPH
Applicable Range:it is suitable for the magnetite, pyrrhotite, roasted ore, ilmenite and other materials smaller than 3mm in wet-type magnetic separation process.
Certification: CE, ISO, SS
Wearing Parts: Molds, roller
Motor Choice: Electric or Diesel
Product Warranty: One Year
Feeding Granularity: 300-1050mm
Production Capacity: 80-1000TPH
Rotation Speed:0.1–5 r/min
Production Capacity:180-10000t/d
Product Specification:Φ2.5×40m-Φ6.0×95m
Feeding Size:≤25-≤100mm
Production Capacity:5-100t/h
Applied Materials:River gravel, iron ore, limestone, quartz, granite and other medium or hard ores and rocks.
Feeding Granularity: 120-1500mm
Production Capacity: 1-2200t/h
Feed Opening:150×250-1600×2100mm
Production Capacity:50-800TPH
Application Field:Hydropower, building material, highway, city construction, metallurgy, coal mining and so on.etc.
Applied Materials:Granite, basalt, bank gravel, bauxite, cement clinker, quartz silicon carbide,limestone, river stone, etc.
Feeding Size: ≤25-≤100mm
Production Capacity: 5-100t/h
Applied Materials: River gravel, iron ore, limestone, quartz, granite and other medium or hard ores and rocks.
Brand Name: Fote Machinery
Application:Ore concentrate/separator plant
Main Equipment:Jaw crusher, impact crusher, hammer crusher, vibrating screen, classifier, ball mill, etc.
Feeding Granularity: 300-700mm
Production Capacity: 30-550TPH
Feed Opening:400×730-1260×2040mm
Production Capacity:200,000-500,000 tons per year
Component Parts:Material storage tank, sand dryer, batching apparatus, mixer, dry powder packing machine, dust collector and conveyor.
Application Fields:To produce single component and multiple component mortar products such as dry-mixed mortar, water proof mortar, adhesive mortar, plaster anti-crack mortar and hollow glass bead inorganic thermal mortar.
Processing Capacity:2-30TPH
Application Area:Refractories, power plants, metallurgy, chemical industry, energy, transportation, heating.
Applied Materials:Coal, bentonite, clay, kaolin, coke, aluminum, iron, iron oxide skin, toner, slag, gypsum, tailings, sludge, kaolin, activated carbon, coke, powder, scrap, waste, etc.
Feeding Size:50-100mm
Production Capacity:5-100TPH
Applied Materials:Coal, limestone, granite, cobble, dolomite, bluestone, iron ore, coal gangue, coal, activated carbon, quartz, basalt, etc.
Capacity:0.18-7 (m ³/min)
Suitable Materials:Lithium, copper, zinc, lead, nickel, gold and other non-ferrous metals, ferrous and non-metal.
Major Equipment:Jaw crusher, ball mill, sprial classifier, flotation machine, concentrator machine and dryer machine
Feeding Size:≤25mm
Production Capacity:200t/d-8,000t/d
Technological Features: Crushing raw materials, pre-homogenizing materials, arranging ingredients, efficient grinding, homogenizing materials, suspending pre-heater and decomposing furnace, new type cooler, cement dosing and grinding.
Weight:4-230t
Production Capacity:0.5-76TPH
Applied Materials:Slag, blast furnace slag, fly ash, cinder, slag, carbide slag, limestone, clay, sand, quartz sand, etc.
Weight:3.2-120(t)
Production Capacity: 0.5-50TPH
Processible Materials:slag, limestone, limestone, coal ash, coal dust, clay
Capacity:0.18-7 (m ³/min)
Suitable Materials:Limonite Ore,Copper, zinc, lead, nickel, gold and other non-ferrous metals, ferrous and non-metal.
Major Equipment:Jaw crusher, ball mill, sprial classifier, magnetic separator, concentrator machine and dryer machine
Configuration:Jaw crusher, grinding mill, bucket elevator, magnetic vibrating feeder, transmission gear, main engine.
Applied Materials:Feldspar, calcite, talc, barite, fluorite, rare earth, marble, ceramics, bauxite, manganese, phosphate rock, etc.
Application Area:Building materials, chemicals, fertilizer, metallurgy, mining, refractory, ceramic, steel, thermal power, coal, etc.
Cylinder Capacity: 9-285(m³)
Processing Capacity:1.9-76TPH
Application Area:Coal industry, construction industry, mineral industry, chemical industry.
Production Capacity:50-800TPH
Application Field:Hydropower, building material, highway, city construction, metallurgy, coal mining and so on.etc.
Applied Materials:Granite, basalt, bank gravel, bauxite, cement clinker, quartz silicon carbide,limestone, river stone, etc.
Processing Specifications: 6-20mm
Yield: 2.8-3.6 tons/hour (crude fiber)
Pellet Making Temperature: 80-100(Celsius)
Feeding Size:160-240mm
Production Capacity:40-390TPH
Applied Material:River gravel, limestone, granite, basalt, diabase, andesite, tailings,etc.
Feeding Granularity: 120-1500mm
Production Capacity: 1-2200t/h
Feed Opening:150×250-1600×2100mm
Production Capacity:2-36TPH
Feeding Granularity:Φ1.5×15m-Φ3.3×40m
Technical Features:Cooling the clinker (1000-1300℃) discharged from rotary kiln to below 200℃ and improving the quality and grinding ability of the clinker.
Feeding Size:400-1200mm
Production Capacity:45-500TPH
Applied Materials:Limestone, granite, basalt, andesite, iron ore, quartz, diabase, iron ore, gold ore, copper ore,etc.
Production: 1-2200t/h
Feed opening: 150×250-300×1300mm
Feeding size: 125-250mm
Feeding Granularity: 300-700mm
Production Capacity: 30-550TPH
Feed Opening:400×730-1260×2040mm
Capacity:10-280TPH
Configuration:Jaw crusher, ball mill, classifier, magnetic separator, concentrator and dryer.
Application:Wet and dry type magnetic separation for materials smaller than 3mm such as magnetite, pyrrhotite, roasted ore and titanic iron ore.
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