GB1003957A - A process for the purification of highly dispersed oxides of silicon, aluminium, titanium and/or zirconium - Google Patents

A process for the purification of highly dispersed oxides of silicon, aluminium, titanium and/or zirconium

Info

Publication number
GB1003957A
GB1003957A GB15079/62A GB1507962A GB1003957A GB 1003957 A GB1003957 A GB 1003957A GB 15079/62 A GB15079/62 A GB 15079/62A GB 1507962 A GB1507962 A GB 1507962A GB 1003957 A GB1003957 A GB 1003957A
Authority
GB
United Kingdom
Prior art keywords
oxides
furnace
highly dispersed
steam
inert gas
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
GB15079/62A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB1003957A publication Critical patent/GB1003957A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/16—Purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/20—Methods for preparing oxides or hydroxides in general by oxidation of elements in the gaseous state; by oxidation or hydrolysis of compounds in the gaseous state
    • C01B13/22—Methods for preparing oxides or hydroxides in general by oxidation of elements in the gaseous state; by oxidation or hydrolysis of compounds in the gaseous state of halides or oxyhalides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
    • C01B3/12—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
    • C01B3/16—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/181—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
    • C01B33/183—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process by oxidation or hydrolysis in the vapour phase of silicon compounds such as halides, trichlorosilane, monosilane
    • 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
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • 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
    • C01G23/07—Producing by vapour phase processes, e.g. halide oxidation
    • C01G23/075—Evacuation and cooling of the gaseous suspension containing the oxide; Desacidification and elimination of gases occluded in the separated oxide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • C09C3/043—Drying, calcination
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06—Treatment with inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/90—Other properties not specified above

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Silicon Compounds (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

<PICT:1003957/C1/1> A process for removing halogens and/or halogen hydride from highly dispersed oxides, oxide mixtures or mixed oxides of Si, Al, Ti and/or Zr, which have been obtained by vapour-phase hydrolysis or oxidation of halides of these elements, and if desired, in the presence of an inert gas, at elevated temperatures, comprises introducing the said oxides, oxide mixtures or mixed oxides into a chamber in parallel with a stream of steam, which may be diluted with an inert gas, so as to form a turbulent suspension of oxides in the steam, which suspension is heated at 450-1000 DEG C., and removing the treated oxides and the resultant gases containing impurities from the end of the treatment chamber opposite to the end at which they were introduced. As shown, the process may be carried out in an apparatus comprising furnace 1, having electrical heating rods 6 arranged within. Air is passed through heater 9, together with water from pipe 10, and the hot air-stream mixture entrains oxides from vessels 12 prior to entry into furnace. The furnace may be equipped with an additional gas-heating device 7. The treated oxides and waste gases are discharged via outlets 3 and 4 respectively.
GB15079/62A 1961-04-20 1962-04-18 A process for the purification of highly dispersed oxides of silicon, aluminium, titanium and/or zirconium Expired GB1003957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED35883A DE1150955B (en) 1961-04-20 1961-04-20 Method and device for cleaning highly dispersed oxides

Publications (1)

Publication Number Publication Date
GB1003957A true GB1003957A (en) 1965-09-08

Family

ID=7042844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15079/62A Expired GB1003957A (en) 1961-04-20 1962-04-18 A process for the purification of highly dispersed oxides of silicon, aluminium, titanium and/or zirconium

Country Status (6)

Country Link
BE (1) BE616573A (en)
CH (1) CH439230A (en)
DE (1) DE1150955B (en)
DK (1) DK122211B (en)
GB (1) GB1003957A (en)
SE (1) SE309031B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083946A (en) * 1977-03-23 1978-04-11 E. I. Du Pont De Nemours And Company Process for removing chloride impurities from TiO2
US4166047A (en) 1976-12-02 1979-08-28 Shell Oil Company Hydrothermal treatment of silica
US4363792A (en) * 1980-05-19 1982-12-14 The Dow Chemical Company Defluorination of fumed silica
US6524548B1 (en) * 1994-12-17 2003-02-25 Degussa Ag Zirconium dioxide powder, method of its production and use
WO2005019107A1 (en) * 2003-08-20 2005-03-03 Degussa Ag Purification of finely divided, pyrogenically prepared metal oxide particles
JP2007502766A (en) * 2003-08-20 2007-02-15 デグサ　アクチエンゲゼルシャフト Purification of finely dispersed metal oxide particles produced by pyrolysis

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253889A (en) * 1964-06-30 1966-05-31 Du Pont Process for removing chloride impurity from tio2 product
DE2240014C3 (en) * 1972-08-14 1981-04-16 Degussa Ag, 6000 Frankfurt Process for the waterproofing of highly disperse oxides
JP3546494B2 (en) * 1994-10-27 2004-07-28 信越化学工業株式会社 Purification method of fine silica
US5855860A (en) * 1994-10-27 1999-01-05 Shin-Etsu Chemical Co., Ltd. Method for porifying fine particulate silica
WO2021121557A1 (en) 2019-12-17 2021-06-24 Wacker Chemie Ag Fluidized-bed reactor for the control of the dwell time distribution in continuously operated fluidized beds

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE762723C (en) * 1942-02-28 1952-07-28 Degussa Process for cleaning finely divided oxides from metals or metalloids

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166047A (en) 1976-12-02 1979-08-28 Shell Oil Company Hydrothermal treatment of silica
US4083946A (en) * 1977-03-23 1978-04-11 E. I. Du Pont De Nemours And Company Process for removing chloride impurities from TiO2
US4363792A (en) * 1980-05-19 1982-12-14 The Dow Chemical Company Defluorination of fumed silica
US6524548B1 (en) * 1994-12-17 2003-02-25 Degussa Ag Zirconium dioxide powder, method of its production and use
WO2005019107A1 (en) * 2003-08-20 2005-03-03 Degussa Ag Purification of finely divided, pyrogenically prepared metal oxide particles
JP2007502766A (en) * 2003-08-20 2007-02-15 デグサ　アクチエンゲゼルシャフト Purification of finely dispersed metal oxide particles produced by pyrolysis
CN100447083C (en) * 2003-08-20 2008-12-31 德古萨股份公司 Purification of finely divided, pyrogenically prepared metal oxide particles
US7785560B2 (en) 2003-08-20 2010-08-31 Evonik Degussa Gmbh Purification of finely divided, pyrogenically prepared metal oxide particles
JP4778427B2 (en) * 2003-08-20 2011-09-21 エボニック デグサ ゲーエムベーハー Purification of finely dispersed metal oxide particles produced by pyrolysis

Also Published As

Publication number Publication date
DE1150955B (en) 1963-07-04
DK122211B (en) 1972-02-07
BE616573A (en) 1962-08-16
SE309031B (en) 1969-03-10
CH439230A (en) 1967-07-15

Similar Documents

Publication Publication Date Title
GB1003957A (en) A process for the purification of highly dispersed oxides of silicon, aluminium, titanium and/or zirconium
SE8207014L (en) Procedure for treating material in a whirlpool bath oven
GB1047713A (en) Improvements in or relating to the production of finely divided metal oxides
GB813632A (en) Improvements in or relating to thermal treatment of finely divided substances
GB1111411A (en) Improvements in and relating to the manufacture of titanium dioxide
GB1093891A (en) Continuous calcination of gypsum or other hydrated solid material
FR80148E (en) Process for cooling and removing hot gases from pneumatic refining of cast irons, in particular using pure oxygen
GB988878A (en) Fluidised bed process for the production of titanium dioxide
US3240563A (en) Purification of refractory materials
SU481554A1 (en) Method for producing optical quartz glass
GB986660A (en) Improvement in the vapour phase oxidation of titanium tetrahalide to produce rutile pigment
GB1031371A (en) Production of zirconium and silicon tetrahalides
GB541343A (en) Improvements in and relating to the production of zirconium and titanium oxides
RU2125018C1 (en) Pigment titanium dioxide production method
GB1056444A (en) Production of pyrogenic pigments
GB1009337A (en) Magnesium oxide preparation
GB444290A (en) Process and apparatus for separating or extracting gas from mixtures of gas and dust
SU469237A3 (en) The method of purification of highly dispersed silicon dioxide
ES343824A1 (en) Process for the production of finely divided silicon dioxide
SU601258A1 (en) Method of cleaning ceramic raw material
GB1024200A (en) Method of burning unpurified shaft furnace top gas in slag tap furnaces
GB897501A (en) Treatment of oxides
US1233925A (en) Process of manufacture of aluminum nitrid.
GB959167A (en) Process for the preparation of pure bismuth
GB974950A (en) Process for the manufacture of sulphuric dioxide