BE431550A - - Google Patents
Info
- Publication number
- BE431550A BE431550A BE431550DA BE431550A BE 431550 A BE431550 A BE 431550A BE 431550D A BE431550D A BE 431550DA BE 431550 A BE431550 A BE 431550A
- Authority
- BE
- Belgium
- Prior art keywords
- sulfuric acid
- black
- acid
- dark
- action
- Prior art date
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 38
- 239000002253 acid Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 238000004061 bleaching Methods 0.000 claims description 8
- 238000002845 discoloration Methods 0.000 claims description 3
- 235000011149 sulphuric acid Nutrition 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- YADSGOSSYOOKMP-UHFFFAOYSA-N lead dioxide Inorganic materials O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 239000011044 quartzite Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C01B17/905—Removal of organic impurities
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE431550A true BE431550A (enrdf_load_stackoverflow) |
Family
ID=91314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE431550D BE431550A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE431550A (enrdf_load_stackoverflow) |
-
0
- BE BE431550D patent/BE431550A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1500067A (zh) | 从生物材料中生产高纯度的无定形二氧化硅的工艺 | |
| KR970060392A (ko) | 반도체 박막 제작방법 | |
| BE431550A (enrdf_load_stackoverflow) | ||
| KR870007528A (ko) | 방사능에 오염된 물질로부터 오염을 제거하는 공정 | |
| US2348328A (en) | Process of and apparatus for treating sulphuric acid containing dissolved nitro bodies | |
| BE1006843A3 (fr) | Procede et dispositif pour eliminer les composes d'ammonium contenus dans des eaux usees. | |
| EP0078073B1 (fr) | Procédé pour fabriquer de l'acide sulfurique | |
| CN118103126A (zh) | 通过酸水溶液吸收处理含二氧化硫流 | |
| FR2643286A1 (fr) | Procede pour l'epuration des fumees contenant des oxydes d'azote | |
| BE403517A (enrdf_load_stackoverflow) | ||
| JPS5618437A (en) | Inspection method for semiconductor crystal | |
| BARRIERE et al. | Study of a chemical cleaning of InP | |
| BE385328A (enrdf_load_stackoverflow) | ||
| TWI763374B (zh) | 處理半導體裝置的方法 | |
| US20150246376A1 (en) | Method for Treating Oil Refinery Equipment for Pyrophoric Iron Sulfide Using Ozonated Water | |
| BE346903A (enrdf_load_stackoverflow) | ||
| BE444036A (enrdf_load_stackoverflow) | ||
| BE431008A (enrdf_load_stackoverflow) | ||
| BE412595A (enrdf_load_stackoverflow) | ||
| KR20080102210A (ko) | 분석 방법 및 분석 장치 | |
| JPS6197114A (ja) | 硝酸液中の有機酸を分解する方法 | |
| BE396113A (enrdf_load_stackoverflow) | ||
| BE393028A (enrdf_load_stackoverflow) | ||
| CS225446B1 (en) | Removal of the photoresists and the surface cleaning of the silicon oxides and silicon in the planar technology of the production of microelectronic elements and integrated circuits | |
| BE549872A (enrdf_load_stackoverflow) |