DE2901736A1 - Verfahren zur herstellung von chromoxid mit niedrigem schwefelgehalt - Google Patents
Verfahren zur herstellung von chromoxid mit niedrigem schwefelgehaltInfo
- Publication number
- DE2901736A1 DE2901736A1 DE19792901736 DE2901736A DE2901736A1 DE 2901736 A1 DE2901736 A1 DE 2901736A1 DE 19792901736 DE19792901736 DE 19792901736 DE 2901736 A DE2901736 A DE 2901736A DE 2901736 A1 DE2901736 A1 DE 2901736A1
- Authority
- DE
- Germany
- Prior art keywords
- chromium
- water
- iii
- oxide
- soluble
- 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.)
- Granted
Links
- 229910052717 sulfur Inorganic materials 0.000 title claims description 71
- 239000011593 sulfur Substances 0.000 title claims description 68
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims description 67
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 132
- 238000000034 method Methods 0.000 claims description 61
- 239000000047 product Substances 0.000 claims description 46
- 238000001354 calcination Methods 0.000 claims description 41
- 239000000203 mixture Substances 0.000 claims description 39
- 150000003839 salts Chemical class 0.000 claims description 33
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 18
- 239000011651 chromium Substances 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 18
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 16
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 16
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 15
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 15
- 229910052804 chromium Inorganic materials 0.000 claims description 15
- 238000000354 decomposition reaction Methods 0.000 claims description 15
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 14
- JOSWYUNQBRPBDN-UHFFFAOYSA-P ammonium dichromate Chemical compound [NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O JOSWYUNQBRPBDN-UHFFFAOYSA-P 0.000 claims description 14
- 150000001845 chromium compounds Chemical class 0.000 claims description 14
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 14
- 235000011152 sodium sulphate Nutrition 0.000 claims description 14
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 claims description 11
- 235000015217 chromium(III) sulphate Nutrition 0.000 claims description 11
- 239000012265 solid product Substances 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 229910000356 chromium(III) sulfate Inorganic materials 0.000 claims description 9
- 239000011696 chromium(III) sulphate Substances 0.000 claims description 9
- 239000011780 sodium chloride Substances 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000002244 precipitate Substances 0.000 claims description 8
- 235000019270 ammonium chloride Nutrition 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 7
- 239000007795 chemical reaction product Substances 0.000 claims description 6
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- 239000002195 soluble material Substances 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 229910052936 alkali metal sulfate Inorganic materials 0.000 claims 1
- 239000012736 aqueous medium Substances 0.000 claims 1
- 239000003575 carbonaceous material Substances 0.000 claims 1
- 239000003039 volatile agent Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 16
- 238000010438 heat treatment Methods 0.000 description 14
- 150000003863 ammonium salts Chemical class 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 6
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 6
- 239000002893 slag Substances 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 3
- 229910000423 chromium oxide Inorganic materials 0.000 description 3
- HFTNNOZFRQLFQB-UHFFFAOYSA-N ethenoxy(trimethyl)silane Chemical compound C[Si](C)(C)OC=C HFTNNOZFRQLFQB-UHFFFAOYSA-N 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000008247 solid mixture Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000004133 Sodium thiosulphate Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 150000001720 carbohydrates Chemical class 0.000 description 2
- 235000014633 carbohydrates Nutrition 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical compound [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 description 2
- XTXKFHTXNIJXFR-UHFFFAOYSA-N disodium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium;hydrate Chemical compound O.[Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O XTXKFHTXNIJXFR-UHFFFAOYSA-N 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 238000003837 high-temperature calcination Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 235000013379 molasses Nutrition 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 229910021556 Chromium(III) chloride Inorganic materials 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- -1 alkali metal dichromate Chemical class 0.000 description 1
- XAQCJVGGJJFLPP-UHFFFAOYSA-L azane;hydroxy-(hydroxy(dioxo)chromio)oxy-dioxochromium Chemical group N.N.O[Cr](=O)(=O)O[Cr](O)(=O)=O XAQCJVGGJJFLPP-UHFFFAOYSA-L 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 description 1
- ABXXWVKOBZHNNF-UHFFFAOYSA-N chromium(3+);dioxido(dioxo)chromium Chemical class [Cr+3].[Cr+3].[O-][Cr]([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Cr]([O-])(=O)=O ABXXWVKOBZHNNF-UHFFFAOYSA-N 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- 239000011636 chromium(III) chloride Substances 0.000 description 1
- 235000007831 chromium(III) chloride Nutrition 0.000 description 1
- VYZAMTAEIAYCRO-YPZZEJLDSA-N chromium-50 Chemical compound [50Cr] VYZAMTAEIAYCRO-YPZZEJLDSA-N 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M sodium bicarbonate Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- 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
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/34—Compounds of chromium
- C09C1/346—Chromium oxides
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/32—Obtaining chromium
-
- 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
- C01P2006/10—Solid density
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB174978 | 1978-01-17 | ||
| GB593578 | 1978-02-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2901736A1 true DE2901736A1 (de) | 1979-07-19 |
| DE2901736C2 DE2901736C2 (enrdf_load_stackoverflow) | 1992-09-03 |
Family
ID=26236952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792901736 Granted DE2901736A1 (de) | 1978-01-17 | 1979-01-17 | Verfahren zur herstellung von chromoxid mit niedrigem schwefelgehalt |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS54112397A (enrdf_load_stackoverflow) |
| DE (1) | DE2901736A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2414477B1 (enrdf_load_stackoverflow) |
| IT (1) | IT1118297B (enrdf_load_stackoverflow) |
| NL (1) | NL7900261A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076573A1 (de) | 2009-12-22 | 2011-06-30 | Lanxess Deutschland Gmbh | Verfahren zur herstellung von chrom(iii)oxid |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH048006U (enrdf_load_stackoverflow) * | 1990-05-09 | 1992-01-24 | ||
| JP2007089908A (ja) * | 2005-09-29 | 2007-04-12 | Miura Co Ltd | 非常時用滅菌装置 |
| JP6285782B2 (ja) * | 2014-04-09 | 2018-02-28 | 日本化学工業株式会社 | 亜クロム酸ナトリウムの製造方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB962193A (en) * | 1961-10-23 | 1964-07-01 | Pittsburgh Plate Glass Co | Production of chromic oxide |
| DE2635086A1 (de) * | 1976-08-04 | 1978-02-09 | Bayer Ag | Verfahren zur herstellung von schwefelarmem chrom(iii)oxid |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2209907A (en) * | 1938-06-29 | 1940-07-30 | Mutual Chemical Company Of Ame | Manufacture of pigments |
| JPS5015240A (enrdf_load_stackoverflow) * | 1973-05-11 | 1975-02-18 | ||
| US4040860A (en) * | 1975-07-09 | 1977-08-09 | Bayer Aktiengesellschaft | Chromium oxide pigment from sodium chromate dihydrate plus ammonium salt |
-
1979
- 1979-01-12 NL NL7900261A patent/NL7900261A/xx not_active Application Discontinuation
- 1979-01-16 IT IT67086/79A patent/IT1118297B/it active
- 1979-01-17 DE DE19792901736 patent/DE2901736A1/de active Granted
- 1979-01-17 FR FR7901137A patent/FR2414477B1/fr not_active Expired
- 1979-01-17 JP JP307279A patent/JPS54112397A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB962193A (en) * | 1961-10-23 | 1964-07-01 | Pittsburgh Plate Glass Co | Production of chromic oxide |
| DE2635086A1 (de) * | 1976-08-04 | 1978-02-09 | Bayer Ag | Verfahren zur herstellung von schwefelarmem chrom(iii)oxid |
Non-Patent Citations (1)
| Title |
|---|
| Zhurnal Prikladoni Khimii, Bd.43, Nr.2, 1970, S.236-240 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076573A1 (de) | 2009-12-22 | 2011-06-30 | Lanxess Deutschland Gmbh | Verfahren zur herstellung von chrom(iii)oxid |
| EP2530054A1 (de) | 2009-12-22 | 2012-12-05 | LANXESS Deutschland GmbH | Verfahren zur Herstellung von Alkali-Ammoniumchromat-Doppelsalzen |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2414477B1 (fr) | 1985-12-20 |
| IT1118297B (it) | 1986-02-24 |
| NL7900261A (nl) | 1979-07-19 |
| DE2901736C2 (enrdf_load_stackoverflow) | 1992-09-03 |
| FR2414477A1 (fr) | 1979-08-10 |
| JPS6250410B2 (enrdf_load_stackoverflow) | 1987-10-24 |
| IT7967086A0 (it) | 1979-01-16 |
| JPS54112397A (en) | 1979-09-03 |
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