ES2045708T3 - Procedimiento para la preparacion del acido diluido producido en la fabricacion de dioxido de titanio por el procedimiento al sulfato. - Google Patents

Procedimiento para la preparacion del acido diluido producido en la fabricacion de dioxido de titanio por el procedimiento al sulfato.

Info

Publication number
ES2045708T3
ES2045708T3 ES90118096T ES90118096T ES2045708T3 ES 2045708 T3 ES2045708 T3 ES 2045708T3 ES 90118096 T ES90118096 T ES 90118096T ES 90118096 T ES90118096 T ES 90118096T ES 2045708 T3 ES2045708 T3 ES 2045708T3
Authority
ES
Spain
Prior art keywords
calcinated
acids
procedure
sub
titanium dioxide
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 - Lifetime
Application number
ES90118096T
Other languages
English (en)
Inventor
Ernst Dipl-Ing Boehm
Peter Dipl-Ing Fh Dirichs
Achim Dipl-Ing Hartmann
Dietrich Dipl-Ing Schonherr
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.)
Kronos Titan GmbH
Original Assignee
Kronos Titan 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 Kronos Titan GmbH filed Critical Kronos Titan GmbH
Application granted granted Critical
Publication of ES2045708T3 publication Critical patent/ES2045708T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
    • C22B34/124—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors
    • C22B34/125—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors containing a sulfur ion as active agent
    • 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
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/88—Concentration of sulfuric acid
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
    • C01G23/0532—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts
    • 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)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Treating Waste Gases (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

LA INVENCION TRATA DE UN METODO PARA LA CONCENTRACION PREVIA A LA HORA DE LA ELABORACION DE DIOXIDO DE TITANIO SEGUN LOS ACIDOS DELGADOS QUE TIENE EL METODO DE SULFATO Y LA UTILIZACION DE UN DISPOSITIVO PARA LLEVAR A CABO ESTE METODO. PARA ELLO SE UTILIZA EL CALOR PARA LA CALCINACION DE GASES DE ESCAPE CALCINADOS NO LIMPIOS CALORICOS OJO QUE TIENEN LOS HIDRATOS DE DIOXIDO DE TITANIO. LOS ACIDOS DELGADOS SE INTRODUCEN EN UN CICLO DE ACIDO DONDE SE PONE EN CONTACTO EL ACIDO CIRCULANTE CON LOS GASES DE ESCAPE CALCINADOS DENTRO DE UN LAVADOR DE VENTURI. Y UNA PARTE DEL ACIDO CIRCULANTE SE EXTRAE DEL CICLO DE ACIDO COMO ACIDO DE CONCENTRACION PREVIA. UNA PARTE DE LOS ACIDOS CIRCULANTES DE MEZCLAN EN EL EXTREMO SUPERIOR DEL LAVADOR DE VENTURI DE FORMA RAPIDA CON LOS GASES DE ESCAPE CALCINADOS Y UNA SEGUNDA PARTE SE APLICA CON LA MISMA ALTURA SOBRE UNA PRENSA Y POR ENCIMA DE LA PARED INTERIOR DEL LAVADOR DE VENTURI Y EL CUELLO DE VENTURI SE MEZCLA CON LOS GASES DE ESCAPE CALCINADOS. POR DEBAJO DELLIMPIADOR DE VENTURI SE SEPARA EL GAS DE ESCAPE CALCINADO DE LOS ACIDOS. LOS ACIDOS SE CONCENTRAN PREVIAMENTE DE 20 A 24% DE H SUB 2 SO SUB 4 SOBRE UN 25 A UN 28% DE H SUB 2 SO SUB 4 Y, SE ENFRIA EL GAS DE ESCAPE CALCINADO PREFERIBLEMENTE A UNA TEMPERATURA DE 250 A 400 C SOBRE 85 A 100 C.
ES90118096T 1990-09-20 1990-09-20 Procedimiento para la preparacion del acido diluido producido en la fabricacion de dioxido de titanio por el procedimiento al sulfato. Expired - Lifetime ES2045708T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90118096A EP0476172B1 (de) 1990-09-20 1990-09-20 Verfahren zur Vorkonzentrierung der bei der Titandioxidherstellung nach dem Sulfatverfahren anfallenden Dünnsäure und Verwendung einer Vorrichtung für dieses Verfahren

Publications (1)

Publication Number Publication Date
ES2045708T3 true ES2045708T3 (es) 1994-01-16

Family

ID=8204490

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90118096T Expired - Lifetime ES2045708T3 (es) 1990-09-20 1990-09-20 Procedimiento para la preparacion del acido diluido producido en la fabricacion de dioxido de titanio por el procedimiento al sulfato.

Country Status (6)

Country Link
EP (1) EP0476172B1 (es)
CN (1) CN1061579A (es)
CA (1) CA2050710A1 (es)
DE (1) DE59003165D1 (es)
ES (1) ES2045708T3 (es)
FI (1) FI100717B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19733247B4 (de) * 1997-08-01 2007-01-04 Kerr-Mcgee Pigments Gmbh Verfahren und Vorrichtung zur adiabatischen Kühlung heißer Gase
CN100428974C (zh) * 2005-05-24 2008-10-29 冯圣君 利用气体余热提浓低浓度酸的方法
US10315149B2 (en) 2014-01-07 2019-06-11 Mecs Inc Gas inlet system for wet gas scrubber
CN106115634B (zh) * 2016-07-06 2017-12-19 钮德明 一种浓缩钛白废酸的方法
CN115417449A (zh) * 2022-08-16 2022-12-02 宁波新福钛白粉有限公司 一种硫酸法钛白粉转窑尾气余热利用系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1119236A (en) * 1965-06-24 1968-07-10 Chemical Construction Corp A method for the recovery of iron salts and sulphonic acid from spent pickle liquors
US3789902A (en) * 1971-06-18 1974-02-05 Chemical Construction Corp Method for concentrating dilute acidic solutions
FR2441418B1 (fr) * 1978-11-17 1986-05-16 Kanegafuchi Chemical Ind Procede et appareil pour executer des reactions chimiques
FR2452311A1 (fr) * 1979-03-30 1980-10-24 Heurtey Efflutherm Procede de depoussierage d'un gaz et dispositif permettant la mise en oeuvre de ce procede
DE3230755A1 (de) * 1982-06-07 1983-12-08 Bayer Ag, 5090 Leverkusen Verfahren zur energieeinsparung bei der ti0(pfeil abwaerts)2(pfeil abwaerts)-herstellung
DE3736111A1 (de) * 1987-10-26 1989-05-03 Kronos Titan Gmbh Verfahren zur energie- und materialsparenden aufarbeitung der bei der titandioxidherstellung nach dem sulfatverfahren anfallenden duennsaeure

Also Published As

Publication number Publication date
EP0476172A1 (de) 1992-03-25
CA2050710A1 (en) 1992-03-21
FI914413A0 (fi) 1991-09-19
FI914413A (fi) 1992-03-21
CN1061579A (zh) 1992-06-03
DE59003165D1 (de) 1993-11-25
EP0476172B1 (de) 1993-10-20
FI100717B (fi) 1998-02-13

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