CH637425A5 - Process and equipment for purifying salt melt baths - Google Patents
Process and equipment for purifying salt melt baths Download PDFInfo
- Publication number
- CH637425A5 CH637425A5 CH744078A CH744078A CH637425A5 CH 637425 A5 CH637425 A5 CH 637425A5 CH 744078 A CH744078 A CH 744078A CH 744078 A CH744078 A CH 744078A CH 637425 A5 CH637425 A5 CH 637425A5
- Authority
- CH
- Switzerland
- Prior art keywords
- molten salt
- salt bath
- fiber material
- baths
- filter
- Prior art date
Links
- 150000003839 salts Chemical class 0.000 title claims description 57
- 238000000034 method Methods 0.000 title claims description 22
- 238000004140 cleaning Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 15
- 239000012784 inorganic fiber Substances 0.000 claims description 7
- 239000002657 fibrous material Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000000356 contaminant Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 210000002268 wool Anatomy 0.000 claims 1
- 238000005121 nitriding Methods 0.000 description 11
- 239000002245 particle Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000011109 contamination Methods 0.000 description 4
- 239000011490 mineral wool Substances 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000011491 glass wool Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 235000021197 fiber intake Nutrition 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/04—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being clamped between pervious fixed walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/44—Methods of heating in heat-treatment baths
- C21D1/46—Salt baths
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Filtration Of Liquid (AREA)
- Filtering Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2731167A DE2731167C3 (de) | 1977-07-09 | 1977-07-09 | Verwendung von anorganischen Faserwerkstoffen zur Reinigung von Salzbädern und Vorrichtung zur Verwendung dieser Faserwerkstoffe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH637425A5 true CH637425A5 (en) | 1983-07-29 |
Family
ID=6013600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH744078A CH637425A5 (en) | 1977-07-09 | 1978-07-07 | Process and equipment for purifying salt melt baths |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5419266A (ja) |
| CH (1) | CH637425A5 (ja) |
| DE (1) | DE2731167C3 (ja) |
| FR (1) | FR2396579A1 (ja) |
| GB (1) | GB1598904A (ja) |
| IT (1) | IT7868350A0 (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2525491B1 (fr) * | 1982-04-23 | 1988-04-29 | Stephanois Rech Mec | Groupe de filtration pour bains de sels |
| DE3836939C1 (ja) * | 1988-10-29 | 1989-06-15 | Degussa Ag, 6000 Frankfurt, De | |
| DE4337374C2 (de) * | 1992-11-09 | 1998-06-10 | Honda Motor Co Ltd | Vorrichtung zum Entschlammen einer Salzschmelze |
| ATE186754T1 (de) * | 1994-01-13 | 1999-12-15 | Houghton Durferrit Gmbh | Filtereinheit und vorrichtung zum entschlammen von salzbädern |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB501176A (en) * | 1937-02-05 | 1939-02-22 | British Celanese | Improvements in or relating to the filtration of fluids |
| DE740298C (de) * | 1938-02-06 | 1943-10-16 | Carl Radix | Durchziehen eines Drahtanfanges durch ein Bleibad |
| FR1019595A (fr) * | 1946-12-10 | 1953-01-23 | Four à bain salin plus spécialement destiné au refroidissement brusque des aciers | |
| US2757425A (en) * | 1952-11-18 | 1956-08-07 | Aluminium Lab Ltd | Apparatus and procedure for treatment of molten aluminum |
| DE1247361B (de) * | 1963-10-02 | 1967-08-17 | Degussa | Vorrichtung zum Entschlammen von Salzschmelzen, insbesondere Nitrierbaedern |
-
1977
- 1977-07-09 DE DE2731167A patent/DE2731167C3/de not_active Expired
-
1978
- 1978-05-16 FR FR7814456A patent/FR2396579A1/fr active Granted
- 1978-05-24 GB GB21928/78A patent/GB1598904A/en not_active Expired
- 1978-05-29 JP JP6420378A patent/JPS5419266A/ja active Pending
- 1978-06-09 IT IT7868350A patent/IT7868350A0/it unknown
- 1978-07-07 CH CH744078A patent/CH637425A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1598904A (en) | 1981-09-23 |
| FR2396579B1 (ja) | 1983-01-28 |
| FR2396579A1 (fr) | 1979-02-02 |
| DE2731167B2 (de) | 1980-02-28 |
| JPS5419266A (en) | 1979-02-13 |
| DE2731167A1 (de) | 1979-01-18 |
| DE2731167C3 (de) | 1980-12-04 |
| IT7868350A0 (it) | 1978-06-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |