DE2122299A1 - Verfahren zur Herstellung von wasserfreiem Chromsesquioxid durch Reduktion einer sechswertigen Chromverbindung - Google Patents
Verfahren zur Herstellung von wasserfreiem Chromsesquioxid durch Reduktion einer sechswertigen ChromverbindungInfo
- Publication number
- DE2122299A1 DE2122299A1 DE19712122299 DE2122299A DE2122299A1 DE 2122299 A1 DE2122299 A1 DE 2122299A1 DE 19712122299 DE19712122299 DE 19712122299 DE 2122299 A DE2122299 A DE 2122299A DE 2122299 A1 DE2122299 A1 DE 2122299A1
- Authority
- DE
- Germany
- Prior art keywords
- temperature
- hydrogen
- reducing atmosphere
- heating
- reducing
- 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
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 17
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 24
- 229910052739 hydrogen Inorganic materials 0.000 claims description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 23
- 239000012298 atmosphere Substances 0.000 claims description 22
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 17
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 14
- 239000003054 catalyst Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 3
- 150000001845 chromium compounds Chemical class 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 238000011282 treatment Methods 0.000 description 28
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000005470 impregnation Methods 0.000 description 8
- 230000004580 weight loss Effects 0.000 description 8
- 238000000576 coating method Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical class NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- JOSWYUNQBRPBDN-UHFFFAOYSA-P ammonium dichromate Chemical compound [NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O JOSWYUNQBRPBDN-UHFFFAOYSA-P 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium dioxide Chemical compound O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229960004424 carbon dioxide Drugs 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/26—Chromium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
-
- 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
- C01P2006/82—Compositional purity water content
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Chemical Treatment Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7016592A FR2104656B1 (enrdf_load_stackoverflow) | 1970-05-06 | 1970-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2122299A1 true DE2122299A1 (de) | 1971-11-25 |
Family
ID=9055184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712122299 Pending DE2122299A1 (de) | 1970-05-06 | 1971-05-05 | Verfahren zur Herstellung von wasserfreiem Chromsesquioxid durch Reduktion einer sechswertigen Chromverbindung |
Country Status (11)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3959182A (en) * | 1969-08-19 | 1976-05-25 | Rohm And Haas Company | Catalyst compositions and process for producing acrylic acid or methacrylic acid utilizing such catalyst |
| JPS5343918B2 (enrdf_load_stackoverflow) * | 1973-02-02 | 1978-11-24 | ||
| US4382104A (en) * | 1979-05-21 | 1983-05-03 | Kennecott Corporation | Method for coating alumina containing refractory fibers with chromium oxide |
| US5380554A (en) * | 1993-07-28 | 1995-01-10 | The United States Of America As Represented By The Secretary Of The Navy | Chromic oxide coatings by thermal decomposition of chromic acid anhydride (CrO3) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2294414A (en) * | 1937-11-09 | 1942-09-01 | Phillips Petroleum Co | Catalyst |
| US2270165A (en) * | 1937-12-29 | 1942-01-13 | Shell Dev | Catalyst |
| FR1084362A (fr) * | 1952-07-16 | 1955-01-19 | Diamond Alkali Co | Procédé de traitement des chromates de métaux alcalins |
-
1970
- 1970-05-06 FR FR7016592A patent/FR2104656B1/fr not_active Expired
-
1971
- 1971-04-29 BE BE766446A patent/BE766446A/xx unknown
- 1971-04-29 CH CH637771A patent/CH531990A/fr not_active IP Right Cessation
- 1971-05-04 US US00140274A patent/US3749595A/en not_active Expired - Lifetime
- 1971-05-05 ES ES390901A patent/ES390901A1/es not_active Expired
- 1971-05-05 DE DE19712122299 patent/DE2122299A1/de active Pending
- 1971-05-05 CA CA112279A patent/CA932124A/en not_active Expired
- 1971-05-05 LU LU63108A patent/LU63108A1/xx unknown
- 1971-05-05 IT IT68483/71A patent/IT939715B/it active
- 1971-05-06 GB GB1357071*[A patent/GB1341607A/en not_active Expired
- 1971-05-06 NL NL7106248A patent/NL7106248A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| LU63108A1 (enrdf_load_stackoverflow) | 1972-03-03 |
| IT939715B (it) | 1973-02-10 |
| US3749595A (en) | 1973-07-31 |
| CA932124A (en) | 1973-08-21 |
| CH531990A (fr) | 1972-12-31 |
| NL7106248A (enrdf_load_stackoverflow) | 1971-11-09 |
| BE766446A (fr) | 1971-10-29 |
| FR2104656B1 (enrdf_load_stackoverflow) | 1973-11-23 |
| FR2104656A1 (enrdf_load_stackoverflow) | 1972-04-21 |
| ES390901A1 (es) | 1973-07-01 |
| GB1341607A (en) | 1973-12-25 |
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