ES8403424A1 - Procedimiento para el ahorro de energia en la preparacion de tio2. - Google Patents

Procedimiento para el ahorro de energia en la preparacion de tio2.

Info

Publication number
ES8403424A1
ES8403424A1 ES523029A ES523029A ES8403424A1 ES 8403424 A1 ES8403424 A1 ES 8403424A1 ES 523029 A ES523029 A ES 523029A ES 523029 A ES523029 A ES 523029A ES 8403424 A1 ES8403424 A1 ES 8403424A1
Authority
ES
Spain
Prior art keywords
acid
saving energy
calcination
titanium dioxide
energy during
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
ES523029A
Other languages
English (en)
Other versions
ES523029A0 (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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of ES523029A0 publication Critical patent/ES523029A0/es
Publication of ES8403424A1 publication Critical patent/ES8403424A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

PROCEDIMIENTO PARA EL AHORRO DE ENERGIA EN LA PREPARACION DE PIGMENTOS DE TIO2 SEGUN EL PROCEDIMIENTO DE SULFATO, APROVECHANDOSE AQUI ESPECIALMENTE EL CALOR DE LOS GASES DE ESCAPE DE LA CALCINACION.CARACTERIZADO PORQUE LOS GASES DE ESCAPE DE CALCINACION QUE CONTIENE POLVO, OBTENIDOS DURANTE LA CALCINACION, SE PURIFICAN Y DESPUES SE INTRODUCEN EN EL PROCESO DE OBTENCION DE TIO2 PARA APROVECHAR SU CALOR SENSIBLE; PORQUE LA PURIFICACION DE LOS GASES DE CALCINACION QUE CONTIENEN POLVO SE EFECTUA A TEMPERATURAS SUPERIORES A 320 GRADOS MEDIANTE FILTROS O MEDIANTE PURIFICACIONELECTROSTATICA; Y PORQUE LOS GASES DE CALCINACION PURIFICADOS SE RECICLAN TOTAL O PARCIALMENTE, EN LUGAR DE AIRE SECUNDARIO, A LA CAMARA DE COMBUSTION DEL PROCEDIMIENTO DE CALCINACION.
ES523029A 1982-06-07 1983-06-06 Procedimiento para el ahorro de energia en la preparacion de tio2. Expired ES8403424A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3221477 1982-06-07
DE19823230755 DE3230755A1 (de) 1982-06-07 1982-08-18 Verfahren zur energieeinsparung bei der ti0(pfeil abwaerts)2(pfeil abwaerts)-herstellung

Publications (2)

Publication Number Publication Date
ES523029A0 ES523029A0 (es) 1984-03-16
ES8403424A1 true ES8403424A1 (es) 1984-03-16

Family

ID=25802310

Family Applications (1)

Application Number Title Priority Date Filing Date
ES523029A Expired ES8403424A1 (es) 1982-06-07 1983-06-06 Procedimiento para el ahorro de energia en la preparacion de tio2.

Country Status (5)

Country Link
EP (1) EP0097259B1 (es)
DE (2) DE3230755A1 (es)
ES (1) ES8403424A1 (es)
FI (1) FI72499C (es)
NO (1) NO162229C (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3513120A1 (de) * 1985-04-12 1986-10-23 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von titandioxid
DE3537941A1 (de) * 1985-10-25 1987-04-30 Bayer Ag Aus duennsaeure gewonnene metallsulfatsuspension, verfahren zu ihrer herstellung sowie deren verwendung
DE3627655A1 (de) * 1986-08-14 1988-03-24 Bayer Ag Verfahren zur herstellung von titandioxidpigmenten
US5229087A (en) * 1987-06-04 1993-07-20 Bayer Aktiengesellschaft Process for the preparation of titanium dioxide
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
DE3930991A1 (de) * 1989-09-16 1991-03-28 Bayer Ag Verfahren zum herstellen von titandioxid
DE59003165D1 (de) * 1990-09-20 1993-11-25 Kronos Titan Gmbh Verfahren zur Vorkonzentrierung der bei der Titandioxidherstellung nach dem Sulfatverfahren anfallenden Dünnsäure und Verwendung einer Vorrichtung für dieses Verfahren.
CH682398A5 (de) * 1991-09-13 1993-09-15 Escher Wyss Ag Verfahren zur Energieeinsparung bei der Herstellung von Titandioxid.
CN102115045B (zh) * 2010-11-30 2015-10-07 东营方圆有色金属有限公司 一种利用冶炼烟气余热浓缩净化稀酸的方法
CN102080928B (zh) * 2011-02-14 2012-11-07 潜江方圆钛白有限公司 硫酸法钛白粉生产中回转窑煅烧烟气热能利用方法及装置
CN105561721B (zh) * 2015-12-23 2018-01-12 上海颜钛实业有限公司 钛白粉生产过程中煅烧尾气的处理方法
CN105727727A (zh) * 2016-02-25 2016-07-06 攀枝花学院 钒渣焙烧尾气的处理方法
CN111874945B (zh) * 2020-08-03 2022-08-16 上海安赐环保科技股份有限公司 一种硫酸法钛白粉水洗系统、净化系统以及工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE871599C (de) * 1939-03-24 1953-03-23 Metallgesellschaft Ag Verfahren zur UEberfuehrung von verduennter Abfallschwefelsaeure in konzentrierte Saeure bzw. Oleum
US3211538A (en) * 1961-05-31 1965-10-12 Chemical Construction Corp Concentration of sulfuric acid pickle liquor
US3105744A (en) * 1961-12-06 1963-10-01 Nat Lead Co Method for producing calcined titanium dioxide pigment material
DE1619881B2 (de) * 1966-09-21 1971-11-11 Hitachi, Ltd., Tokio Verfahren zum entschwefeln von industrieabgasen
JPS5120282B2 (es) * 1972-03-29 1976-06-24

Also Published As

Publication number Publication date
FI72499B (fi) 1987-02-27
NO162229C (no) 1989-11-29
EP0097259A1 (de) 1984-01-04
FI72499C (fi) 1987-06-08
DE3230755A1 (de) 1983-12-08
EP0097259B1 (de) 1985-10-30
FI832008A0 (fi) 1983-06-03
DE3361113D1 (en) 1985-12-05
NO831868L (no) 1983-12-08
NO162229B (no) 1989-08-21
ES523029A0 (es) 1984-03-16
FI832008L (fi) 1983-12-08

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