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 |
| IL111763A (en) | 1993-11-25 | 1998-08-16 | Sumitomo Chemical Co | Method for alpha-alumina powder production |
| 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 |
| US7785560B2 (en) | 2003-08-20 | 2010-08-31 | Evonik Degussa Gmbh | Purification of finely divided, pyrogenically prepared metal oxide particles |
| WO2009017212A1 (ja) * | 2007-07-27 | 2009-02-05 | Toho Titanium Co., Ltd. | 低ハロゲン酸化チタン粉末の製造方法及び低ハロゲン酸化チタン粉末 |
| JP7048053B2 (ja) | 2015-12-18 | 2022-04-05 | 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 | マルチチャンバ炉内での石英ガラス体の調製 |
| 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 |
| WO2017103160A1 (de) | 2015-12-18 | 2017-06-22 | Heraeus Quarzglas Gmbh & Co. Kg | Herstellung von quarzglaskörpern aus siliziumdioxidgranulat |
| CN108698883A (zh) | 2015-12-18 | 2018-10-23 | 贺利氏石英玻璃有限两合公司 | 石英玻璃制备中的二氧化硅的喷雾造粒 |
| KR20180095616A (ko) | 2015-12-18 | 2018-08-27 | 헤래우스 크바르츠글라스 게엠베하 ＆ 컴파니 케이지 | 용융 가열로에서 이슬점 조절을 이용한 실리카 유리체의 제조 |
| CN108698885A (zh) | 2015-12-18 | 2018-10-23 | 贺利氏石英玻璃有限两合公司 | 石英玻璃制备中硅含量的提升 |
| US10618833B2 (en) | 2015-12-18 | 2020-04-14 | Heraeus Quarzglas Gmbh & Co. Kg | Preparation of a synthetic quartz glass grain |
| WO2017103131A1 (de) | 2015-12-18 | 2017-06-22 | Heraeus Quarzglas Gmbh & Co. Kg | Verringern des erdalkalimetallgehalts von siliziumdioxidgranulat durch behandlung von kohlenstoffdotiertem siliziumdioxidgranulat bei hoher temperatur |
| CN108698893A (zh) | 2015-12-18 | 2018-10-23 | 贺利氏石英玻璃有限两合公司 | 于耐火金属熔融坩埚中制备石英玻璃体 |
| JP2019502633A (ja) | 2015-12-18 | 2019-01-31 | 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 | 均質な石英ガラス製のガラス繊維および母材 |
| 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 |
| 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 |
| BE709670A (enrdf_load_stackoverflow) | 1968-05-30 |
| GB1197271A (en) | 1970-07-01 |
| FR1554066A (enrdf_load_stackoverflow) | 1968-12-09 |
| JPS4813832B1 (enrdf_load_stackoverflow) | 1973-05-01 |
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