MX366370B - Metodo para producir sales con un contenido reducido de agua para cristalizacion. - Google Patents

Metodo para producir sales con un contenido reducido de agua para cristalizacion.

Info

Publication number
MX366370B
MX366370B MX2015015320A MX2015015320A MX366370B MX 366370 B MX366370 B MX 366370B MX 2015015320 A MX2015015320 A MX 2015015320A MX 2015015320 A MX2015015320 A MX 2015015320A MX 366370 B MX366370 B MX 366370B
Authority
MX
Mexico
Prior art keywords
drying
reduced water
content
crystallisation
producing salts
Prior art date
Application number
MX2015015320A
Other languages
English (en)
Other versions
MX2015015320A (es
Inventor
Bernhard Kröhl Paul
Original Assignee
Andritz Tech & Asset Man Gmbh
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 Andritz Tech & Asset Man Gmbh filed Critical Andritz Tech & Asset Man Gmbh
Publication of MX2015015320A publication Critical patent/MX2015015320A/es
Publication of MX366370B publication Critical patent/MX366370B/es

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06Controlling, e.g. regulating, parameters of gas supply
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/02Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/18Dehydration
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04Hydroxides
    • C01D1/44Preparation in the form of granules, pieces, or other shaped products
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00Halides of sodium, potassium or alkali metals in general
    • C01D3/22Preparation in the form of granules, pieces, or other shaped products
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00Carbonates of sodium, potassium or alkali metals in general
    • C01D7/35Varying the content of water of crystallisation or the specific gravity
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D9/00Nitrates of sodium, potassium or alkali metals in general
    • C01D9/18Preparation in the form of shaped products, e.g. granules
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00Compounds of calcium, strontium, or barium
    • C01F11/20Halides
    • C01F11/24Chlorides
    • C01F11/30Concentrating; Dehydrating; Preventing the adsorption of moisture or caking
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F5/00Compounds of magnesium
    • C01F5/26Magnesium halides
    • C01F5/30Chlorides
    • C01F5/34Dehydrating magnesium chloride containing water of crystallisation
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/48Halides, with or without other cations besides aluminium
    • C01F7/56Chlorides
    • C01F7/58Preparation of anhydrous aluminium chloride
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00Compounds of iron
    • C01G49/14Sulfates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08Humidity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08Humidity
    • F26B21/086Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/02Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/18Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact
    • F26B3/20Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact the heat source being a heated surface, e.g. a moving belt or conveyor
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/80Compositional purity
    • C01P2006/82Compositional purity water content
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00Drying processes and machines for solid materials characterised by the specific requirements of the drying good

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Microbiology (AREA)
  • Geology (AREA)
  • Agronomy & Crop Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

La invención se relaciona con un método para secar sales con un contenido de agua para cristalización en aparatos convectivos que adicionalmente se pueden calentar indirectamente. La invención se caracteriza principalmente porque el proceso de secado se lleva a cabo con un contenido de humedad del gas de secado por encima de un nivel determinado. El gas que rodea las partículas de sal durante el proceso de secado por lo tanto tiene una humedad específica. De esta forma, se influye positivamente la velocidad de secado.
MX2015015320A 2013-05-07 2014-05-02 Metodo para producir sales con un contenido reducido de agua para cristalizacion. MX366370B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA379/2013A AT514275B1 (de) 2013-05-07 2013-05-07 Verfahren zur Erzeugung von Salzen mit reduziertem Kristallwassergehalt
PCT/EP2014/001177 WO2014180547A1 (de) 2013-05-07 2014-05-02 Verfahren zur erzeugung von salzen mit reduziertem kristallwassergehalt

Publications (2)

Publication Number Publication Date
MX2015015320A MX2015015320A (es) 2016-02-18
MX366370B true MX366370B (es) 2019-07-05

Family

ID=50828856

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015015320A MX366370B (es) 2013-05-07 2014-05-02 Metodo para producir sales con un contenido reducido de agua para cristalizacion.

Country Status (18)

Country Link
US (2) US10215492B2 (es)
EP (1) EP2994707B1 (es)
JP (1) JP6383784B2 (es)
KR (1) KR102131821B1 (es)
CN (1) CN105190211B (es)
AT (1) AT514275B1 (es)
AU (1) AU2014264996B2 (es)
BR (1) BR112015027191B1 (es)
CA (1) CA2910678C (es)
ES (1) ES2665143T3 (es)
MX (1) MX366370B (es)
MY (1) MY175972A (es)
PL (1) PL2994707T3 (es)
RU (1) RU2655442C2 (es)
SG (1) SG11201508937TA (es)
SI (1) SI2994707T1 (es)
UA (1) UA118675C2 (es)
WO (1) WO2014180547A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11221180B2 (en) * 2019-04-02 2022-01-11 Innovative Environmental Companies, Inc. Systems and methods related to staged drying of temperature sensitive materials
CN111609673A (zh) * 2020-06-02 2020-09-01 湖南省湘衡盐化有限责任公司 一种工业盐干燥设备及其方法
DE102021125452B4 (de) 2021-09-30 2024-06-27 Dr. Weigel Anlagenbau Gmbh Trocknungsvorrichtung und Verfahren zum Betreiben einer Trocknungsvorrichtung
AU2022268395B2 (en) * 2022-03-16 2023-12-14 Gea Process Engineering A/S Method and system for drying salts, in particular hydrated salt
AR128797A1 (es) 2022-03-16 2024-06-12 Gea Process Eng A/S Método y sistema para secar sales, en particular sales hidratadas

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388553A (en) * 1931-02-16 1933-03-02 Metallgesellschaft Ag Process for extracting water of crystallisation or hydration from salts
US2033985A (en) * 1932-09-27 1936-03-17 Celanese Corp Method of separating substantially anhydrous solids from solutions
US2118272A (en) * 1935-01-14 1938-05-24 Guggenheim Brothers Recovery of salts from aqueous solutions
US2204777A (en) * 1937-09-24 1940-06-18 Guggenheim Brothers Apparatus for the recovery of salts from aqueous solutions
US2272345A (en) * 1939-10-11 1942-02-10 Kenneth A Kobe Process of dehydrating salts
US2567959A (en) * 1944-01-28 1951-09-18 Standard Oil Dev Co Fluidized bed evaporator and method
US2631084A (en) * 1948-12-29 1953-03-10 Phillips Petroleum Co Ammonium sulfate production
US2715282A (en) * 1952-04-15 1955-08-16 Midwest Research Inst Method of and apparatus for drying particulate material
GB805159A (en) * 1954-07-03 1958-12-03 Fisons Ltd Granular materials
DE1113666B (de) 1956-03-10 1961-09-07 Bayer Ag Wirbelbetttrocknungsverfahren fuer kristallwasserhaltige Metallsalze
DE1125893B (de) * 1959-10-02 1962-03-22 Knapsack Ag Verfahren und Vorrichtung zur Gewinnung von Magnesiumchlorid aus magnesiumchloridhaltigen Loesungen
US3212197A (en) * 1961-06-08 1965-10-19 James R Crawford Drying method and apparatus
US3262213A (en) * 1963-04-02 1966-07-26 Gen Mills Inc Method and apparatus for drying agglomerates
JPS506058B1 (es) * 1968-06-27 1975-03-10
US3696520A (en) * 1970-01-06 1972-10-10 Peter Klaus Niedner Process and device for the treatment of material
JPS5034266B1 (es) * 1970-02-23 1975-11-07
US3884645A (en) * 1970-04-13 1975-05-20 Stauffer Chemical Co Production of anhydrous sodium metasilicate in a fluidized bed
US3815254A (en) * 1972-01-18 1974-06-11 W Mills Method and apparatus for controlling the amount of moisture removed from material
DE2349211C3 (de) * 1973-10-01 1979-06-21 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zum Trocknen und gleichzeitigen Agglomerieren von Metallsalzen
US4004352A (en) * 1975-01-16 1977-01-25 Steffen Vincent B Grain drying apparatus
US4043051A (en) * 1975-02-24 1977-08-23 Delbert Lussenden Method and apparatus for drying grain
US4244698A (en) * 1978-05-02 1981-01-13 The Dow Chemical Company Method for drying magnesium sulfate
US4151266A (en) * 1978-06-22 1979-04-24 Allied Chemical Corporation Method for the conversion of anhydrous sodium carbonate to Wegscheider's Salt
US4324544A (en) * 1980-06-12 1982-04-13 Fmc Corporation Process and system for drying coal in a fluidized bed by partial combustion
DE3602815A1 (de) * 1986-01-30 1987-08-06 Brueckner Trockentechnik Gmbh Vorrichtung zur ermittlung des zeitlichen trocknungsverlaufes einer warenprobe
US5519948A (en) * 1992-02-12 1996-05-28 Henkel Corporation Process for the production of granules suitable as wetting agents, detergents and/or cleaning products
AT397929B (de) * 1992-12-04 1994-08-25 Chemiefaser Lenzing Ag Verfahren und anlage zur trocknung und anschliessenden spaltung
US5603839A (en) * 1995-09-18 1997-02-18 Cecebe Technologies Inc. Process for the recovery of waste sulphuric acid
US6085440A (en) * 1995-11-21 2000-07-11 Apv Anhydro As Process and an apparatus for producing a powdered product by spin flash drying
US5915817A (en) * 1997-05-29 1999-06-29 Wolverine (Massachusetts) Corporation Proctor & Schwartz Division Process for drying particulate matter
KR100427012B1 (ko) * 2000-01-12 2004-04-30 오성은 순수소금의 제조방법
MXPA03001426A (es) * 2000-08-14 2003-06-06 Unilever Nv Proceso de granulacion.
EP1375638B1 (en) * 2001-03-29 2007-05-23 Sapporo Breweries Ltd. Method of controlling absolute humidity of air stream in kilning step and kilning apparatus
WO2003075689A1 (fr) * 2002-03-14 2003-09-18 Japan Tobacco Inc. Procede de regulation de l'humidite de matiere brute et machine a cet effet
WO2005036080A1 (de) 2003-09-09 2005-04-21 Eth-Zürich Verfahren und vorrichtung zum durchführen beschleunigter trocknung poröser stoffsysteme
JP4305349B2 (ja) * 2004-09-28 2009-07-29 パナソニック株式会社 浴室換気乾燥機
RU2427417C2 (ru) * 2004-10-12 2011-08-27 Грейт Ривэ Энеджи Установка для тепловой обработки зернистых материалов
MX2007007659A (es) * 2004-12-23 2007-10-10 J P Lab Pvt Ltd Proceso para prepara un detergente.
US8158152B2 (en) * 2005-11-18 2012-04-17 Scidose Llc Lyophilization process and products obtained thereby
RU2343374C1 (ru) * 2007-07-03 2009-01-10 Олег Савельевич Кочетов Гранулятор кипящего слоя
EP3090792A1 (en) * 2008-07-18 2016-11-09 Prosonix Limited Process for improving crystallinity
AT507100B1 (de) * 2008-07-23 2010-02-15 Andritz Tech & Asset Man Gmbh Vorrichtung und verfahren zur wärmeübertragung
CN102177406B (zh) * 2008-08-12 2013-11-06 施维英生物泥公司 闭环干燥系统和方法
AT509388B1 (de) * 2010-02-12 2012-06-15 Andritz Tech & Asset Man Gmbh Anströmboden für einen fluidisierungsapparat
JP5072130B2 (ja) * 2010-10-19 2012-11-14 有限会社丸忠設備工業 乾燥装置
JP5848014B2 (ja) * 2011-03-22 2016-01-27 三菱重工業株式会社 流動層乾燥装置

Also Published As

Publication number Publication date
US10215492B2 (en) 2019-02-26
RU2015150297A (ru) 2017-06-08
AT514275A1 (de) 2014-11-15
JP2016517949A (ja) 2016-06-20
CA2910678C (en) 2021-12-21
US20160061522A1 (en) 2016-03-03
RU2015150297A3 (es) 2018-03-20
EP2994707B1 (de) 2018-01-10
PL2994707T3 (pl) 2018-06-29
MX2015015320A (es) 2016-02-18
BR112015027191A2 (pt) 2020-03-10
AT514275B1 (de) 2015-05-15
AU2014264996A1 (en) 2015-11-12
CN105190211A (zh) 2015-12-23
AU2014264996B2 (en) 2017-08-24
RU2655442C2 (ru) 2018-05-28
KR102131821B1 (ko) 2020-07-09
BR112015027191B1 (pt) 2021-09-14
US20190063836A1 (en) 2019-02-28
ES2665143T3 (es) 2018-04-24
MY175972A (en) 2020-07-19
JP6383784B2 (ja) 2018-08-29
KR20160005751A (ko) 2016-01-15
CN105190211B (zh) 2018-07-03
UA118675C2 (uk) 2019-02-25
SG11201508937TA (en) 2015-12-30
US10914519B2 (en) 2021-02-09
EP2994707A1 (de) 2016-03-16
WO2014180547A1 (de) 2014-11-13
SI2994707T1 (en) 2018-06-29
CA2910678A1 (en) 2014-11-13

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