GB1197271A - Process for the Purification of Finely Divided Oxides - Google Patents

Process for the Purification of Finely Divided Oxides

Info

Publication number
GB1197271A
GB1197271A GB2766/68A GB276668A GB1197271A GB 1197271 A GB1197271 A GB 1197271A GB 2766/68 A GB2766/68 A GB 2766/68A GB 276668 A GB276668 A GB 276668A GB 1197271 A GB1197271 A GB 1197271A
Authority
GB
United Kingdom
Prior art keywords
oxide
oxides
steam
purification
finely divided
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
GB2766/68A
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 GB1197271A publication Critical patent/GB1197271A/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
    • C01B13/145—After-treatment of oxides or hydroxides, e.g. pulverising, drying, decreasing the acidity
    • 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
    • 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
    • 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
    • C09C3/08—Treatment with low-molecular-weight non-polymer organic 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
    • C01P2006/12—Surface area
    • 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
    • C01P2006/80—Compositional purity
    • 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
    • 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)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Silicon Compounds (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

1,197,271. Purification of oxides. DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT. 18 Jan., 1968 [21 Jan., 1967], No. 2766/68. Headings C1A and C1N. Finely divided oxides or mixtures of oxides produced by vapour phase oxidation or hydrolysis of chlorides, are purified by introducing the oxide into a treatment zone heated to 400-600‹ C. in which it descends under gravity in countercurrent to an ascending stream of a mixture of steam and an inert gas, the flow of gas being insufficient to fluidize the oxide. The gas mixture is preferably of steam and compressed air preheated to 120‹ C. The oxide may be SiO 2 of s.a. 200 m<SP>2</SP>/gm., TiO 2 , or Al 2 O 3 of s.a. 80 m<SP>2</SP>/gm. The treatment zone may be a vertical tube widened at its upper and lower ends. It may be heated externally by electric heating coils or internally by H 2 burners, the flames being screened from the solid (in this case, steam for the treatment is produced by the burners). The pH of a 4% aqueous dispersion of the oxide is increased from 1À9 to 4 or 4À2 (for SiO 2 ) or from 1À5 to 8À2 (for Al 2 O 3 ).
GB2766/68A 1967-01-21 1968-01-18 Process for the Purification of Finely Divided Oxides Expired GB1197271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0052080 1967-01-21

Publications (1)

Publication Number Publication Date
GB1197271A true GB1197271A (en) 1970-07-01

Family

ID=7053890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2766/68A Expired GB1197271A (en) 1967-01-21 1968-01-18 Process for the Purification of Finely Divided Oxides

Country Status (6)

Country Link
JP (1) JPS4813832B1 (en)
BE (1) BE709670A (en)
DE (1) DE1642994A1 (en)
FR (1) FR1554066A (en)
GB (1) GB1197271A (en)
NL (1) NL6800730A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123669A2 (en) * 1983-03-24 1984-10-31 VOEST-ALPINE Aktiengesellschaft Method of separating borates from magnesium hydroxide obtained from sea water, and apparatus for carrying out the method
EP0129015A2 (en) * 1983-06-10 1984-12-27 Degussa Aktiengesellschaft Pyrogenically produced silicon dioxide, process for its preparation and use
EP0709340A1 (en) * 1994-10-27 1996-05-01 Shin-Etsu Chemical Co., Ltd. Method for purifying fine particulate silica
US5707599A (en) * 1996-02-13 1998-01-13 Santiam Electroactive Materials Process for purifying tantalum oxide and other metal oxides
US5855860A (en) * 1994-10-27 1999-01-05 Shin-Etsu Chemical Co., Ltd. Method for porifying fine particulate silica
WO2005019107A1 (en) * 2003-08-20 2005-03-03 Degussa Ag Purification of finely divided, pyrogenically prepared metal oxide particles
CN100447083C (en) * 2003-08-20 2008-12-31 德古萨股份公司 Purification of finely divided, pyrogenically prepared metal oxide particles
WO2017103170A1 (en) * 2015-12-18 2017-06-22 Heraeus Quarzglas Gmbh & Co. Kg Steam treatment of silica powder during the production of silica glass
US10618833B2 (en) 2015-12-18 2020-04-14 Heraeus Quarzglas Gmbh & Co. Kg Preparation of a synthetic quartz glass grain
US10676388B2 (en) 2015-12-18 2020-06-09 Heraeus Quarzglas Gmbh & Co. Kg Glass fibers and pre-forms made of homogeneous quartz glass
US10730780B2 (en) 2015-12-18 2020-08-04 Heraeus Quarzglas Gmbh & Co. Kg Preparation of a quartz glass body in a multi-chamber oven
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
US11053152B2 (en) 2015-12-18 2021-07-06 Heraeus Quarzglas Gmbh & Co. Kg Spray granulation of silicon dioxide in the preparation of quartz glass
US11236002B2 (en) 2015-12-18 2022-02-01 Heraeus Quarzglas Gmbh & Co. Kg Preparation of an opaque quartz glass body
US11299417B2 (en) 2015-12-18 2022-04-12 Heraeus Quarzglas Gmbh & Co. Kg Preparation of a quartz glass body in a melting crucible of refractory metal
US11339076B2 (en) 2015-12-18 2022-05-24 Heraeus Quarzglas Gmbh & Co. Kg Preparation of carbon-doped silicon dioxide granulate as an intermediate in the preparation of quartz glass
US11492282B2 (en) 2015-12-18 2022-11-08 Heraeus Quarzglas Gmbh & Co. Kg Preparation of quartz glass bodies with dew point monitoring in the melting oven
US11492285B2 (en) 2015-12-18 2022-11-08 Heraeus Quarzglas Gmbh & Co. Kg Preparation of quartz glass bodies from silicon dioxide granulate
US11952303B2 (en) 2015-12-18 2024-04-09 Heraeus Quarzglas Gmbh & Co. Kg Increase in silicon content in the preparation of quartz glass

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0656319B1 (en) 1993-11-25 2003-04-09 Sumitomo Chemical Company, Limited Method for producing alpha-alumina powder
JP5553601B2 (en) * 2007-07-27 2014-07-16 東邦チタニウム株式会社 Method for producing titanium oxide powder
CN109205629B (en) * 2018-11-21 2023-11-14 浙江富士特硅材料有限公司 Circulation formula gas phase method white carbon black deacidification system

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123669A2 (en) * 1983-03-24 1984-10-31 VOEST-ALPINE Aktiengesellschaft Method of separating borates from magnesium hydroxide obtained from sea water, and apparatus for carrying out the method
EP0123669A3 (en) * 1983-03-24 1987-12-02 VOEST-ALPINE Aktiengesellschaft Method of separating borates from magnesium hydroxide obtained from sea water, and apparatus for carrying out the method
EP0129015A2 (en) * 1983-06-10 1984-12-27 Degussa Aktiengesellschaft Pyrogenically produced silicon dioxide, process for its preparation and use
EP0129015A3 (en) * 1983-06-10 1988-09-07 Degussa Aktiengesellschaft Pyrogenically produced silicon dioxide, process for its preparation and use
EP0709340A1 (en) * 1994-10-27 1996-05-01 Shin-Etsu Chemical Co., Ltd. Method for purifying fine particulate silica
US5855860A (en) * 1994-10-27 1999-01-05 Shin-Etsu Chemical Co., Ltd. Method for porifying fine particulate silica
US5707599A (en) * 1996-02-13 1998-01-13 Santiam Electroactive Materials Process for purifying tantalum oxide and other metal oxides
WO2005019107A1 (en) * 2003-08-20 2005-03-03 Degussa Ag Purification of finely divided, pyrogenically prepared metal oxide particles
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
WO2017103170A1 (en) * 2015-12-18 2017-06-22 Heraeus Quarzglas Gmbh & Co. Kg Steam treatment of silica powder during the production of silica glass
US10618833B2 (en) 2015-12-18 2020-04-14 Heraeus Quarzglas Gmbh & Co. Kg Preparation of a synthetic quartz glass grain
US10676388B2 (en) 2015-12-18 2020-06-09 Heraeus Quarzglas Gmbh & Co. Kg Glass fibers and pre-forms made of homogeneous quartz glass
US10730780B2 (en) 2015-12-18 2020-08-04 Heraeus Quarzglas Gmbh & Co. Kg Preparation of a quartz glass body in a multi-chamber oven
US11053152B2 (en) 2015-12-18 2021-07-06 Heraeus Quarzglas Gmbh & Co. Kg Spray granulation of silicon dioxide in the preparation of quartz glass
US11236002B2 (en) 2015-12-18 2022-02-01 Heraeus Quarzglas Gmbh & Co. Kg Preparation of an opaque quartz glass body
US11299417B2 (en) 2015-12-18 2022-04-12 Heraeus Quarzglas Gmbh & Co. Kg Preparation of a quartz glass body in a melting crucible of refractory metal
US11339076B2 (en) 2015-12-18 2022-05-24 Heraeus Quarzglas Gmbh & Co. Kg Preparation of carbon-doped silicon dioxide granulate as an intermediate in the preparation of quartz glass
US11492282B2 (en) 2015-12-18 2022-11-08 Heraeus Quarzglas Gmbh & Co. Kg Preparation of quartz glass bodies with dew point monitoring in the melting oven
US11492285B2 (en) 2015-12-18 2022-11-08 Heraeus Quarzglas Gmbh & Co. Kg Preparation of quartz glass bodies from silicon dioxide granulate
US11708290B2 (en) 2015-12-18 2023-07-25 Heraeus Quarzglas Gmbh & Co. Kg Preparation of a quartz glass body in a multi-chamber oven
US11952303B2 (en) 2015-12-18 2024-04-09 Heraeus Quarzglas Gmbh & Co. Kg Increase in silicon content in the preparation of quartz glass
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

Also Published As

Publication number Publication date
BE709670A (en) 1968-05-30
FR1554066A (en) 1968-12-09
DE1642994A1 (en) 1971-06-03
JPS4813832B1 (en) 1973-05-01
NL6800730A (en) 1968-07-22

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years