DE903090C - Verfahren zur kontinuierlichen Herstellung von Schwegeldioxyd - Google Patents

Verfahren zur kontinuierlichen Herstellung von Schwegeldioxyd

Info

Publication number
DE903090C
DE903090C DEI3997A DEI0003997A DE903090C DE 903090 C DE903090 C DE 903090C DE I3997 A DEI3997 A DE I3997A DE I0003997 A DEI0003997 A DE I0003997A DE 903090 C DE903090 C DE 903090C
Authority
DE
Germany
Prior art keywords
mixture
calcium sulfate
silicon dioxide
clay
heated
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
Application number
DEI3997A
Other languages
German (de)
English (en)
Inventor
William Hector Maclennan
John Manning
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of DE903090C publication Critical patent/DE903090C/de
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/07Parts or details, e.g. mixing tools, whipping tools
    • A47J43/08Driving mechanisms
    • A47J43/082Driving mechanisms for machines with tools driven from the upper side
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00Sulfur; Compounds thereof
    • C01B17/48Sulfur dioxide; Sulfurous acid
    • C01B17/50Preparation of sulfur dioxide
    • C01B17/501Preparation of sulfur dioxide by reduction of sulfur compounds
    • C01B17/506Preparation of sulfur dioxide by reduction of sulfur compounds of calcium sulfates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/02Portland cement
    • C04B7/04Portland cement using raw materials containing gypsum, i.e. processes of the Mueller-Kuehne type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32Friction members
    • F16H55/52Pulleys or friction discs of adjustable construction
    • F16H55/56Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
    • F16H55/566Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable only adjustable when pulley is stationary

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Food Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Treating Waste Gases (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Silicon Compounds (AREA)
DEI3997A 1950-04-04 1951-04-03 Verfahren zur kontinuierlichen Herstellung von Schwegeldioxyd Expired DE903090C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8419/50A GB694035A (en) 1950-04-04 1950-04-04 Improvements in and relating to the production of sulphur dioxide

Publications (1)

Publication Number Publication Date
DE903090C true DE903090C (de) 1954-02-01

Family

ID=9852159

Family Applications (2)

Application Number Title Priority Date Filing Date
DEI3997A Expired DE903090C (de) 1950-04-04 1951-04-03 Verfahren zur kontinuierlichen Herstellung von Schwegeldioxyd
DEI3996A Expired DE903089C (de) 1950-04-04 1951-04-03 Verfahren zur kontinuierlichen Herstellung von Schwefeldioxyd

Family Applications After (1)

Application Number Title Priority Date Filing Date
DEI3996A Expired DE903089C (de) 1950-04-04 1951-04-03 Verfahren zur kontinuierlichen Herstellung von Schwefeldioxyd

Country Status (6)

Country Link
US (2) US2687947A (en, 2012)
BE (2) BE502247A (en, 2012)
DE (2) DE903090C (en, 2012)
FR (2) FR1038651A (en, 2012)
GB (2) GB694035A (en, 2012)
NL (2) NL78212C (en, 2012)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2901321A (en) * 1956-06-20 1959-08-25 Knud S Horn Two-step method of making calcium oxide from calcium sulfate
US3282646A (en) * 1963-12-03 1966-11-01 Allied Chem Production of sulfur dioxide
US3607036A (en) * 1968-02-09 1971-09-21 Cities Service Co Recovery of sulfur from gypsum
US3479138A (en) * 1968-03-18 1969-11-18 Olin Mathieson Process for the recovery of p2o5 from phosphatic ores
US3649182A (en) * 1968-12-24 1972-03-14 Wellman Lord Inc Reduction of pyrosulfite
CH593934A5 (en, 2012) * 1974-09-03 1977-12-30 Inventa Ag
US4144312A (en) * 1977-04-13 1979-03-13 Lupis Claude H P Desulfurization of fluorite ores
US4312842A (en) * 1980-02-12 1982-01-26 Wilson Sr Eddie K Process of manufacture of phosphoric acid with recovery of co-products
US4415543A (en) * 1980-02-12 1983-11-15 Wilson Sr Eddie K Process for treating phospho-gypsum waste product from wet-acid process of making phosphoric acid
NL8003307A (nl) * 1980-06-06 1982-01-04 Stamicarbon Werkwijze voor het winnen van calciumverbindingen en zwaveldioxide uit calciumsulfaat, en calciumverbin- dingen en zwaveldioxide verkregen volgens deze werk- wijze.
US4440733A (en) * 1980-11-06 1984-04-03 California Institute Of Technology Thermochemical generation of hydrogen and carbon dioxide
US4503018A (en) * 1983-02-14 1985-03-05 Davy Mckee Corporation Desulfurization of phosphogypsum
US4946658A (en) * 1986-11-06 1990-08-07 Florida Institute Of Phosphate Research Addition of pyritic materials to feed mix for desulfurization of phosphogypsum
CN1331738C (zh) * 2000-09-01 2007-08-15 山东鲁北企业集团总公司 一种石膏分解工艺及装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1198817A (en) * 1913-11-25 1916-09-19 Lucien Paul Basset Process of manufacturing cement or hydraulic lime from plaster.
US1801741A (en) * 1927-09-06 1931-04-21 Firm G Polysius Ag Method of reducing gypsum
US2230592A (en) * 1937-02-02 1941-02-04 Walther H Duisberg Process of preparing magnesia and sulphur dioxide
US2222740A (en) * 1937-04-15 1940-11-26 Chemische Werke Vorm H & E Alb Production of sulphur dioxide from calcium sulphate
US2141228A (en) * 1937-06-14 1938-12-27 Commw Edison Co Method of converting a sulphite into an oxide and sulphur dioxide
US2250186A (en) * 1938-02-02 1941-07-22 Ig Farbenindustrie Ag Manufacture of cement, alkali metal aluminate, and sulphur dioxide
US2232099A (en) * 1938-04-13 1941-02-18 Alan N Mann Process of decomposing calcium sulphate
FR845050A (fr) * 1938-04-13 1939-08-09 Procédé de fabrication d'anhydride sulfureux
US2252279A (en) * 1938-07-06 1941-08-12 Walther H Duisberg Manufacture of sulphur dioxide and portland cement from calcium sulphate and the usual additions containing aluminum silicate
GB541993A (en) * 1938-12-31 1941-12-22 Cfcmug Improvements in electric line protective systems

Also Published As

Publication number Publication date
BE502284A (en, 2012)
DE903089C (de) 1954-02-01
US2687946A (en) 1954-08-31
GB694036A (en) 1953-07-15
BE502247A (en, 2012)
FR1038651A (fr) 1953-09-30
NL78212C (en, 2012)
GB694035A (en) 1953-07-15
NL78211C (en, 2012)
US2687947A (en) 1954-08-31
FR1034442A (fr) 1953-07-23

Similar Documents

Publication Publication Date Title
DE903090C (de) Verfahren zur kontinuierlichen Herstellung von Schwegeldioxyd
DE19523324C2 (de) Verfahren zur Herstellung eines verfestigten Produkts
DE3785919T2 (de) Umwandlung von Kalziumverbindungen in feste und gasförmige Verbindungen.
DE2613651C2 (de) Verfahren zur Herstellung von prismatischem und nadelförmigem alpha-Halbhydratgips
EP0044005B1 (de) Herstellung von Gipshalbhydrat mit Wärmemüll, wässriger H2SO4 und schwefelsauren Salzen
EP0793625A1 (de) Portlandzementklinker und dessen verwendung
DE2652352B2 (de) Verfahren zur Gewinnung von Magnesiumoxid hoher Reinheit
DE2528560A1 (de) Verfahren zur herstellung von plaster
DE600269C (de) Verfahren zur Herstellung von citratloeslichen Calciumalkaliphosphaten
DE2523367A1 (de) Verfahren zur absenkung des alkaligehalts im zementfertigbrand
AT407986B (de) Synthetischer dolomit sowie verfahren und additivzusammensetzung zur herstellung desselben
DE2064210A1 (de) Verfahren zum Herstellen von totge branntem Gips
EP0433886B1 (de) Verfahren zur Herstellung einer anorganischen Barium-haltigen Feststoffzusammensetzung
DE4124581C2 (de) Verfahren zur Kalzination von hydratisierter Tonerde
EP0061517B1 (de) Verfahren zur Herstellung eines wasserfesten Bindemittels
DE1592689B2 (de) Verfahren zur Herstellung von Glühphosphat
DE681644C (de) Verfahren zur Herstellung von Schwefeldioxyd unter gleichzeitiger Gewinnung eines Phosphatduengemittels
DE2137573A1 (de) Verfahren zur aufbereitung von magnesiumverbindungen
AT123841B (de) Verfahren zur Herstellung von citratlöslichen Calciumalkaliphosphaten durch Behandlung von Rohphosphaten mit Alkalisulfaten und Reduktionsmitteln.
DE700498C (de) Herstellung eines fuer die Thioharnstoffherstellung geeigneten calciumsulfidhaltigen Kalkstickstoffes
AT367726B (de) Verwendung eines grobkoernigen kokses als zusatz zum rohmehl fuer das gipsschwefelsaeureverfahren
DE329406C (de) Verfahren zur Herstellung von Zement
DE1816660C3 (de) Verfahren zur Herstellung eines fluorarmen Glühphosphats
AT211216B (de) Verfahren zur Herstellung eines für die Erzeugung von Baumaterial geeigneten Stoffes
DE502894C (de) Verfahren zur Herstellung hydraulischer Bindemittel