ES8301849A1 - Procedimiento e instalacion para la preparacion de yeso se- mihidratado alfa - Google Patents

Procedimiento e instalacion para la preparacion de yeso se- mihidratado alfa

Info

Publication number
ES8301849A1
ES8301849A1 ES503928A ES503928A ES8301849A1 ES 8301849 A1 ES8301849 A1 ES 8301849A1 ES 503928 A ES503928 A ES 503928A ES 503928 A ES503928 A ES 503928A ES 8301849 A1 ES8301849 A1 ES 8301849A1
Authority
ES
Spain
Prior art keywords
sulfuric acid
diluted
production
waste heat
sulfuric
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
ES503928A
Other languages
English (en)
Other versions
ES503928A0 (es
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.)
His Handels & Ind
Original Assignee
His Handels & Ind
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27149546&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8301849(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from AT0365880A external-priority patent/AT377752B/de
Priority claimed from DE19813117641 external-priority patent/DE3117641A1/de
Application filed by His Handels & Ind filed Critical His Handels & Ind
Publication of ES8301849A1 publication Critical patent/ES8301849A1/es
Publication of ES503928A0 publication Critical patent/ES503928A0/es
Granted legal-status Critical Current

Links

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
    • C04B11/00—Calcium sulfate cements
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/466—Conversion of one form of calcium sulfate to another
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

PROCEDIMIENTO E INSTALACION PARA LA PREPARACION DE YESO SEMIHIDRATADO ALFA. SE PREPARA UNA DISPERSION A PARTIR DE SULFATO CALCICO DIHIDRATADO DE ELEVADA FINURA DE GRANOS Y A PARTIR DE ACIDO SULFURICO ACUOSO, Y CON APORTACION DE DESHECHOS TERMICOS INDUSTRIALES, EXENTOS DE POLVO. SE CALIENTA DICHA DISPERSION A 90-110<025>C CON UNA PREDETERMINADA VELOCIDAD DE CALENTAMIENTO, TRAS DE LO CUAL LOS COMPONENTES SOLIDOS SE SEPARAN DEL ACIDO ACUOSO, SECANDOSE A CONTINUACION A 105-130<025>C. LA INSTALACION ESTA FORMADA POR TRES CONVERTIDORES (1) ACOPLADOS PARA FORMAR UNA BATERIA DE REACTORES, QUE HAN DE SER ALIMENTADOS, CALENTADOS Y VACIADOS SUCESIVAMENTE, CONSIGUIENDOSE UN PROCEDIMIENTO CASI CONTINUO. MEDIANTE CIRCUITOS ELECTRONICOS SE CONTROLA EL PROCEDIMIENTO DE MANERA QUE TANTO LA APORTACION DE SULFATO CALCICO DIHIDRATADO COMO LA DEL SULFATO CALCICO SEMIHIDRATADO SE EFECTUAN DE UN MODO CONTINUO.
ES503928A 1980-07-14 1981-07-14 Procedimiento e instalacion para la preparacion de yeso se- mihidratado alfa Granted ES503928A0 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0365880A AT377752B (de) 1980-07-14 1980-07-14 Verfahren zur herstellung von gipshalbhydrat
DE19813105709 DE3105709A1 (de) 1980-07-14 1981-02-17 Verfahren zur herstellung von gipshalbhydrat mit waermemuell
DE19813117641 DE3117641A1 (de) 1981-05-05 1981-05-05 Herstellung von gipshalbhydrat mit waermemuell, waessriger h(pfeil abwaerts)2(pfeil abwaerts)so(pfeil abwaerts)4(pfeil abwaerts) und schwefelsauren salzen

Publications (2)

Publication Number Publication Date
ES8301849A1 true ES8301849A1 (es) 1983-02-01
ES503928A0 ES503928A0 (es) 1983-02-01

Family

ID=27149546

Family Applications (1)

Application Number Title Priority Date Filing Date
ES503928A Granted ES503928A0 (es) 1980-07-14 1981-07-14 Procedimiento e instalacion para la preparacion de yeso se- mihidratado alfa

Country Status (6)

Country Link
US (1) US4432954A (es)
EP (1) EP0044005B1 (es)
DK (1) DK314081A (es)
ES (1) ES503928A0 (es)
NL (1) NL8103353A (es)
SE (1) SE8104272L (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1258961A (en) * 1984-09-17 1989-09-05 Yoshihiko Kudo PROCESS FOR PRODUCING .alpha.-FORM GYPSUM HEMIHYDRATE
US4744963A (en) * 1986-08-14 1988-05-17 United States Gypsum Company Highly efficient calcination of gypsum to hemihydrate
JP2715059B2 (ja) * 1994-05-06 1998-02-16 韓国電力公社 排煙と脱硫を行なう方法およびその装置
US5743954A (en) * 1995-02-02 1998-04-28 United States Gypsum Company Method for continuous refractoryless calcining of gypsum
US5769940A (en) * 1997-05-07 1998-06-23 Dravo Lime Company Process for producing cement and elemental sulfur from a flue gas desulfurization waste product
US5766339A (en) * 1997-05-07 1998-06-16 Dravo Lime Company Process for producing cement from a flue gas desulfurization process waste product
US5964940A (en) * 1998-04-20 1999-10-12 Wilson; Harold W. Process for increasing the water solubility of gypsum
US8388926B2 (en) 2006-01-13 2013-03-05 Certainteed Gypsum, Inc. System and method for the production of gypsum using heat recovery
US7498014B2 (en) * 2006-01-13 2009-03-03 Certainteed Gypsum, Inc. System and method for the production of alpha type gypsum using heat recovery
CN103626143A (zh) * 2013-11-29 2014-03-12 晏明朗 生产湿法磷酸副产白石膏的方法
CN103696014B (zh) * 2013-12-12 2015-12-30 宁夏贝利特化工有限公司 用生产硝基胍、双氰胺的废弃物生产硫酸钙晶须和硫酸钙的方法
CN107619207A (zh) * 2016-07-15 2018-01-23 平邑开元新型建材有限公司 石膏蒸汽煅烧炉
CN108043192B (zh) * 2018-01-26 2023-10-24 福建龙净环保股份有限公司 一种炉后污染物脱除系统
CN112850773A (zh) * 2021-02-01 2021-05-28 贵州中亚高科涂料有限公司 一种高纯度半水脱硫膏的高效生产方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE421469A (es) * 1936-05-09
GB1101771A (en) * 1963-08-14 1968-01-31 Bpb Industries Ltd Improvements relating to the production of gypsum plaster
AU6714265A (en) * 1965-11-26 1968-05-16 Continuous production of alpha plaster
DE1592080A1 (de) * 1966-10-27 1970-09-10 Central Glass Co Ltd Herstellungsverfahren fuer Gips von hoher Reinheit
GB1248037A (en) * 1968-01-13 1971-09-29 Fisons Ltd Calcium sulphate
US3855391A (en) * 1973-01-23 1974-12-17 Dravo Corp Sludge stabilization with gypsum
GB1545789A (en) * 1975-06-04 1979-05-16 Ici Ltd Manufacture of calcium carbonate magnesium bicarbonate magnesium carbonate and calcium sulphate
JPS5248594A (en) * 1975-10-17 1977-04-18 Kureha Chem Ind Co Ltd Method for producing type gypsum hemihydrate
DE2603699C2 (de) * 1976-01-31 1977-12-08 Ruhrkohle AG; Steag AG; 4300 Essen Verfahren zur Beseitigung des Rückstandes der Abgaswäsche von Feuerungen, insbesondere von Steinkohlenkraftwerken
GB1577365A (en) * 1976-02-28 1980-10-22 Chiyoda Chem Eng Construct Co Gas-liquid contacting method and apparatus
GB1545788A (en) * 1976-05-11 1979-05-16 Ici Ltd Manufacture of calcium sulphate
JPS5351199A (en) * 1976-10-22 1978-05-10 Michio Sekiya Manufacturing process for hydrate of crystalline calcium sulfate
JPS5367693A (en) * 1976-11-29 1978-06-16 Kobe Steel Ltd Dehydrating method for exhaust gas desulfurization by-product gypsum
JPS5373495A (en) * 1976-12-14 1978-06-29 Masao Kinemura Method of making anhydrous gypsum using waste energy
DE2727544A1 (de) * 1977-06-18 1979-01-04 Heinz Hoelter Verfahren zur trocknung und umwandlung von chemiegips-dihydrat bis zum gips-halbhydrat durch nutzung von abgaswaerme hinter rauchgasentschwefelungsanlagen bei gleichzeitiger rauchgaskonditionierung fuer die nasse rauchgaswaesche
DE2803764C2 (de) * 1978-01-28 1983-02-10 Saarbergwerke AG, 6600 Saarbrücken Verfahren zur Reinigung von Kohlefeuerungsabgasen
DE2833382B2 (de) * 1978-07-29 1980-10-23 Saarbergwerke Ag, 6600 Saarbruecken Verfahren zur Verwertung des in Rauchgasentschwefelungsanlagen, die auf Kalkbasis betrieben werden, anfallenden Gipses
NL7812108A (nl) * 1978-12-13 1980-06-17 Stamicarbon Werkwijze voor het bereiden van calciumsulfaat- hemihydraat en calciumsulfaathemihydraat verkregen volgens deze werkwijze.
NL7812109A (nl) * 1978-12-13 1980-06-17 Stamicarbon Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze.

Also Published As

Publication number Publication date
DK314081A (da) 1982-01-15
SE8104272L (sv) 1982-01-15
EP0044005B1 (de) 1984-09-26
US4432954A (en) 1984-02-21
ES503928A0 (es) 1983-02-01
NL8103353A (nl) 1982-02-01
EP0044005A1 (de) 1982-01-20

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