DE1642994A1 - Verfahren zum Reinigen von hochdispersen Oxiden - Google Patents

Verfahren zum Reinigen von hochdispersen Oxiden

Info

Publication number
DE1642994A1
DE1642994A1 DE19671642994 DE1642994A DE1642994A1 DE 1642994 A1 DE1642994 A1 DE 1642994A1 DE 19671642994 DE19671642994 DE 19671642994 DE 1642994 A DE1642994 A DE 1642994A DE 1642994 A1 DE1642994 A1 DE 1642994A1
Authority
DE
Germany
Prior art keywords
oxides
treatment
oxide
fluidized bed
treatment room
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.)
Pending
Application number
DE19671642994
Other languages
German (de)
English (en)
Inventor
Friedrich Dr Bittner
Eugen Dr Meyer-Simon
Rudolf Dr Schwarz
Willibald Dr Walk
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
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 filed Critical Degussa GmbH
Publication of DE1642994A1 publication Critical patent/DE1642994A1/de
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT 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
    • C09C3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/006Combinations of treatments provided for in groups C09C3/04 - C09C3/12
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14Methods for preparing oxides or hydroxides in general
    • C01B13/145After-treatment of oxides or hydroxides, e.g. pulverising, drying, decreasing the acidity
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00Silicon; Compounds thereof
    • C01B33/113Silicon oxides; Hydrates thereof
    • C01B33/12Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/181Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
    • C01B33/183Preparation 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
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00Compounds of titanium
    • C01G23/04Oxides; Hydroxides
    • C01G23/047Titanium dioxide
    • C01G23/07Producing by vapour phase processes, e.g. halide oxidation
    • C01G23/075Evacuation and cooling of the gaseous suspension containing the oxide; Desacidification and elimination of gases occluded in the separated oxide
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT 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
    • C09C3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/04Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • C09C3/043Drying, calcination
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT 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
    • C09C3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06Treatment with inorganic compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT 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
    • C09C3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08Treatment with low-molecular-weight non-polymer organic compounds
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/12Surface area
    • 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
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/90Other properties not specified above
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy 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)
DE19671642994 1967-01-21 1967-01-21 Verfahren zum Reinigen von hochdispersen Oxiden Pending DE1642994A1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE1642994A1 true DE1642994A1 (de) 1971-06-03

Family

ID=7053890

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671642994 Pending DE1642994A1 (de) 1967-01-21 1967-01-21 Verfahren zum Reinigen von hochdispersen Oxiden

Country Status (6)

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

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376636B (de) * 1983-03-24 1984-12-10 Voest Alpine Ag Verfahren zum abtrennen von boraten von aus meerwasser erhaltenem magnesiumhydroxid sowie vorrichtung zur durchfuehrung dieses verfahrens
DE3320968A1 (de) * 1983-06-10 1984-12-13 Degussa Ag, 6000 Frankfurt Pyrogen hergestelltes siliciumdioxid, verfahren zu seiner herstellung und verwendung
EP0656319B1 (en) 1993-11-25 2003-04-09 Sumitomo Chemical Company, Limited Method for producing alpha-alumina powder
JP3546494B2 (ja) * 1994-10-27 2004-07-28 信越化学工業株式会社 微細シリカの精製法
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
DE10342827A1 (de) * 2003-08-20 2005-03-17 Degussa Ag Reinigung feinverteilter, pyrogen hergestellter Metalloxidpartikel
WO2005019107A1 (en) * 2003-08-20 2005-03-03 Degussa Ag Purification of finely divided, pyrogenically prepared metal oxide particles
JP5553601B2 (ja) * 2007-07-27 2014-07-16 東邦チタニウム株式会社 酸化チタン粉末の製造方法
TWI808933B (zh) 2015-12-18 2023-07-21 德商何瑞斯廓格拉斯公司 石英玻璃體、二氧化矽顆粒、光導、施照體、及成型體及其製備方法
EP3390303B1 (de) 2015-12-18 2024-02-07 Heraeus Quarzglas GmbH & Co. KG Herstellung von quarzglaskörpern mit taupunktkontrolle im schmelzofen
TWI840318B (zh) 2015-12-18 2024-05-01 德商何瑞斯廓格拉斯公司 石英玻璃體、光導、施照體、成型體及製備彼等之方法及矽組分之用途
EP3390296B1 (de) 2015-12-18 2024-09-04 Heraeus Quarzglas GmbH & Co. KG Herstellung eines quarzglaskörpers in einem mehrkammerofen
EP3390290B1 (de) 2015-12-18 2023-03-15 Heraeus Quarzglas GmbH & Co. KG Herstellung eines opaken quarzglaskörpers
KR20180095879A (ko) 2015-12-18 2018-08-28 헤래우스 크바르츠글라스 게엠베하 & 컴파니 케이지 상승된 온도에서 탄소-도핑된 실리카 과립을 처리하여 실리카 과립의 알칼리 토금속 함량의 감소
TW201733932A (zh) * 2015-12-18 2017-10-01 德商何瑞斯廓格拉斯公司 石英玻璃製備中之二氧化矽粉末的蒸氣處理
US11492285B2 (en) 2015-12-18 2022-11-08 Heraeus Quarzglas Gmbh & Co. Kg Preparation of quartz glass bodies from silicon dioxide granulate
EP3390308B1 (de) 2015-12-18 2024-08-28 Heraeus Quarzglas GmbH & Co. KG Glasfasern aus quarzglas mit geringem oh-, cl- und al-gehalt
KR20180095622A (ko) 2015-12-18 2018-08-27 헤래우스 크바르츠글라스 게엠베하 & 컴파니 케이지 내화성 금속으로 제조된 용융 도가니에서 실리카 유리 제품의 제조
TWI794149B (zh) 2015-12-18 2023-03-01 德商何瑞斯廓格拉斯公司 石英玻璃粉粒、不透明成型體及彼等之製備方法
CN109205629B (zh) * 2018-11-21 2023-11-14 浙江富士特硅材料有限公司 一种环流式气相法白炭黑脱酸系统
WO2021121557A1 (de) 2019-12-17 2021-06-24 Wacker Chemie Ag Wirbelschichtreaktor zur steuerung der verweilzeitverteilung in kontinuierlich betriebenen wirbelschichten

Also Published As

Publication number Publication date
NL6800730A (ja) 1968-07-22
GB1197271A (en) 1970-07-01
FR1554066A (ja) 1968-12-09
JPS4813832B1 (ja) 1973-05-01
BE709670A (ja) 1968-05-30

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