DE1642994A1 - Verfahren zum Reinigen von hochdispersen Oxiden - Google Patents
Verfahren zum Reinigen von hochdispersen OxidenInfo
- 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
Links
- 238000000034 method Methods 0.000 title claims description 26
- 230000008569 process Effects 0.000 title claims description 19
- 238000004140 cleaning Methods 0.000 title claims description 6
- 238000011282 treatment Methods 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052752 metalloid Inorganic materials 0.000 claims description 5
- 150000002738 metalloids Chemical class 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 150000002366 halogen compounds Chemical class 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 19
- 235000012239 silicon dioxide Nutrition 0.000 description 10
- 230000002378 acidificating effect Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 239000010453 quartz Substances 0.000 description 5
- 150000004820 halides Chemical class 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000001698 pyrogenic effect Effects 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910000039 hydrogen halide Inorganic materials 0.000 description 1
- 239000012433 hydrogen halide Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000011328 necessary treatment Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
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 (enrdf_load_stackoverflow) |
| BE (1) | BE709670A (enrdf_load_stackoverflow) |
| DE (1) | DE1642994A1 (enrdf_load_stackoverflow) |
| FR (1) | FR1554066A (enrdf_load_stackoverflow) |
| GB (1) | GB1197271A (enrdf_load_stackoverflow) |
| NL (1) | NL6800730A (enrdf_load_stackoverflow) |
Families Citing this family (22)
| 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 |
| DE69432451T2 (de) | 1993-11-25 | 2004-03-11 | Sumitomo Chemical Co., Ltd. | Verfahren zur Herstellung von Alpha-Aluminiumoxidpulver |
| US5855860A (en) * | 1994-10-27 | 1999-01-05 | Shin-Etsu Chemical Co., Ltd. | Method for porifying fine particulate silica |
| 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 |
| US5707599A (en) * | 1996-02-13 | 1998-01-13 | Santiam Electroactive Materials | Process for purifying tantalum oxide and other metal oxides |
| EP1656324B1 (en) * | 2003-08-20 | 2013-07-31 | Evonik Degussa GmbH | Purification of finely divided, pyrogenically prepared metal oxide particles |
| DE10342827A1 (de) * | 2003-08-20 | 2005-03-17 | Degussa Ag | Reinigung feinverteilter, pyrogen hergestellter Metalloxidpartikel |
| 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 |
| EP3390308B1 (de) | 2015-12-18 | 2024-08-28 | Heraeus Quarzglas GmbH & Co. KG | Glasfasern aus quarzglas mit geringem oh-, cl- und al-gehalt |
| CN108698892A (zh) | 2015-12-18 | 2018-10-23 | 贺利氏石英玻璃有限两合公司 | 从二氧化硅颗粒制备石英玻璃体 |
| EP3390309A1 (de) * | 2015-12-18 | 2018-10-24 | Heraeus Quarzglas GmbH & Co. KG | Wasserdampfbehandlung von siliziumdioxidpulver bei der herstellung von quarzglas |
| 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 |
| JP6881776B2 (ja) | 2015-12-18 | 2021-06-02 | ヘレウス クワルツグラス ゲーエムベーハー ウント コンパニー カーゲー | 不透明石英ガラス体の調製 |
| TW201731782A (zh) | 2015-12-18 | 2017-09-16 | 何瑞斯廓格拉斯公司 | 在多腔式爐中製備石英玻璃體 |
| EP3390292B1 (de) | 2015-12-18 | 2023-03-15 | Heraeus Quarzglas GmbH & Co. KG | Herstellung einer synthetischen quarzglaskörnung |
| EP3390303B1 (de) | 2015-12-18 | 2024-02-07 | Heraeus Quarzglas GmbH & Co. KG | Herstellung von quarzglaskörpern mit taupunktkontrolle im schmelzofen |
| 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 |
| JP7044454B2 (ja) | 2015-12-18 | 2022-03-30 | ヘレウス クワルツグラス ゲーエムベーハー ウント コンパニー カーゲー | 石英ガラス調製時の中間体としての炭素ドープ二酸化ケイ素造粒体の調製 |
| WO2017103115A2 (de) | 2015-12-18 | 2017-06-22 | Heraeus Quarzglas Gmbh & Co. Kg | Herstellung eines quarzglaskörpers in einem schmelztiegel aus refraktärmetall |
| 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 |
-
1967
- 1967-01-21 DE DE19671642994 patent/DE1642994A1/de active Pending
-
1968
- 1968-01-17 NL NL6800730A patent/NL6800730A/xx unknown
- 1968-01-18 GB GB2766/68A patent/GB1197271A/en not_active Expired
- 1968-01-18 FR FR1554066D patent/FR1554066A/fr not_active Expired
- 1968-01-19 BE BE709670D patent/BE709670A/xx not_active IP Right Cessation
- 1968-01-22 JP JP43003674A patent/JPS4813832B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL6800730A (enrdf_load_stackoverflow) | 1968-07-22 |
| GB1197271A (en) | 1970-07-01 |
| BE709670A (enrdf_load_stackoverflow) | 1968-05-30 |
| JPS4813832B1 (enrdf_load_stackoverflow) | 1973-05-01 |
| FR1554066A (enrdf_load_stackoverflow) | 1968-12-09 |
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