DE2420374A1 - Katalysatorregenerierung - Google Patents
KatalysatorregenerierungInfo
- Publication number
- DE2420374A1 DE2420374A1 DE2420374A DE2420374A DE2420374A1 DE 2420374 A1 DE2420374 A1 DE 2420374A1 DE 2420374 A DE2420374 A DE 2420374A DE 2420374 A DE2420374 A DE 2420374A DE 2420374 A1 DE2420374 A1 DE 2420374A1
- Authority
- DE
- Germany
- Prior art keywords
- catalyst
- solution
- aqueous
- washed
- water
- 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.)
- Withdrawn
Links
- 239000003054 catalyst Substances 0.000 title claims description 123
- 238000011069 regeneration method Methods 0.000 title description 18
- 230000008929 regeneration Effects 0.000 title description 15
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 60
- 229910052751 metal Inorganic materials 0.000 claims description 44
- 239000002184 metal Substances 0.000 claims description 44
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 229910052763 palladium Inorganic materials 0.000 claims description 28
- 239000000243 solution Substances 0.000 claims description 24
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 19
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- 239000000460 chlorine Substances 0.000 claims description 14
- 229910052801 chlorine Inorganic materials 0.000 claims description 14
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 13
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 12
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Substances [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 7
- 229940123973 Oxygen scavenger Drugs 0.000 claims description 6
- -1 alkali metal carboxylate Chemical class 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 235000011056 potassium acetate Nutrition 0.000 claims description 6
- 150000001805 chlorine compounds Chemical class 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims 1
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- 238000005660 chlorination reaction Methods 0.000 description 17
- 239000012190 activator Substances 0.000 description 13
- 238000011282 treatment Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 9
- 238000003786 synthesis reaction Methods 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 150000002739 metals Chemical class 0.000 description 7
- 239000012808 vapor phase Substances 0.000 description 7
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 239000010970 precious metal Substances 0.000 description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000008098 formaldehyde solution Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 206010037544 Purging Diseases 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 150000007942 carboxylates Chemical class 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000003842 bromide salts Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001734 carboxylic acid salts Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 229940111002 formaldehyde / methanol Drugs 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- HDZGCSFEDULWCS-UHFFFAOYSA-N monomethylhydrazine Chemical compound CNN HDZGCSFEDULWCS-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/22—Halogenating
- B01J37/24—Chlorinating
-
- 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
- B01J23/90—Regeneration or reactivation
- B01J23/96—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the noble metals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/04—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds
- C07C67/05—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation
- C07C67/055—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation in the presence of platinum group metals or their compounds
-
- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US354821A US3879311A (en) | 1973-04-26 | 1973-04-26 | Catalyst regeneration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2420374A1 true DE2420374A1 (de) | 1974-11-07 |
Family
ID=23395033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2420374A Withdrawn DE2420374A1 (de) | 1973-04-26 | 1974-04-26 | Katalysatorregenerierung |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3879311A (enExample) |
| JP (1) | JPS5013292A (enExample) |
| AU (1) | AU6828174A (enExample) |
| BE (1) | BE814275A (enExample) |
| BR (1) | BR7403413D0 (enExample) |
| CA (1) | CA1018506A (enExample) |
| DE (1) | DE2420374A1 (enExample) |
| FR (1) | FR2227049B1 (enExample) |
| GB (1) | GB1473217A (enExample) |
| IT (1) | IT1010127B (enExample) |
| NL (1) | NL7405672A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5695634A (en) * | 1994-03-01 | 1997-12-09 | Solvay Deutschland Gmbh | Process for catalytic treatment of waste water as well as a process for regenerating a catalyst |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147660A (en) * | 1976-12-22 | 1979-04-03 | Osaka Gas Company, Ltd. | Method for reactivation of platinum group metal catalyst with aqueous alkaline and/or reducing solutions |
| US5194417A (en) * | 1991-12-05 | 1993-03-16 | Quantum Chemical Corporation | Pretreatment of palladium-gold catalysts useful in vinyl acetate synthesis |
| US5552036A (en) * | 1994-06-01 | 1996-09-03 | Foret; Todd L. | Process for reducing the level of sulfur in a refinery process stream and/or crude oil |
| ZA954204B (en) * | 1994-06-01 | 1996-01-22 | Ashland Chemical Inc | A process for improving the effectiveness of a process catalyst |
| SE9504327D0 (sv) * | 1995-12-04 | 1995-12-04 | Eka Nobel Ab | Method of treating a catalyst |
| AU4323796A (en) * | 1995-12-22 | 1997-07-17 | Commonwealth Scientific And Industrial Research Organisation | Oxidation catalyst system |
| EP0791393A1 (en) * | 1996-02-23 | 1997-08-27 | E.I. Du Pont De Nemours And Company | Palladium catalyst recovery |
| EP0972569A1 (en) | 1998-06-25 | 2000-01-19 | Engelhard Corporation | Process for regenerating a used precious metal catalyst |
| JP4666829B2 (ja) * | 2001-07-26 | 2011-04-06 | 旭化成ケミカルズ株式会社 | 担持金属の微粒子化方法 |
| GB201217541D0 (en) | 2012-10-01 | 2012-11-14 | Lucite Int Uk Ltd | A process for production of a silica-supported alkali metal catalyst |
| WO2017139373A1 (en) * | 2016-02-09 | 2017-08-17 | Oxy Vinyls, Lp | Regeneration of catalytic oxidation catalyst impregnated with chromium |
| CN109529880B (zh) * | 2018-12-19 | 2021-11-23 | 利安隆科润(浙江)新材料有限公司 | 一种催化剂的再生方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3016354A (en) * | 1952-12-02 | 1962-01-09 | Houdry Process Corp | Reactivation of platinum catalysts |
| US2704281A (en) * | 1953-04-30 | 1955-03-15 | Universal Oil Prod Co | Purification of noble metal-metal oxide composite |
| US3134732A (en) * | 1953-07-17 | 1964-05-26 | Exxon Research Engineering Co | Reactivation of regenerated noble metal catalysts with gaseous halogens |
| US3201355A (en) * | 1953-10-05 | 1965-08-17 | Exxon Research Engineering Co | Reactivation of noble metal catalysts with anhydrous gaseous halogens |
| US3190912A (en) * | 1962-05-02 | 1965-06-22 | Nat Distillers Chem Corp | Process for preparing esters |
| DE1252662B (enExample) * | 1965-06-25 | |||
| GB1084159A (enExample) * | 1965-07-09 | |||
| US3480558A (en) * | 1966-06-10 | 1969-11-25 | Nat Distillers Chem Corp | Catalyst regeneration |
| DE1920806C3 (de) * | 1969-04-24 | 1974-07-04 | Knapsack Ag, 5033 Huerth-Knapsack | Verfahren zur Regenerierung eines Dehalogenierungskatalysators |
-
1973
- 1973-04-26 US US354821A patent/US3879311A/en not_active Expired - Lifetime
-
1974
- 1974-04-19 CA CA197,836A patent/CA1018506A/en not_active Expired
- 1974-04-23 GB GB1774974A patent/GB1473217A/en not_active Expired
- 1974-04-26 BR BR3413/74A patent/BR7403413D0/pt unknown
- 1974-04-26 IT IT21950/74A patent/IT1010127B/it active
- 1974-04-26 BE BE143695A patent/BE814275A/xx unknown
- 1974-04-26 FR FR7414646A patent/FR2227049B1/fr not_active Expired
- 1974-04-26 NL NL7405672A patent/NL7405672A/xx not_active Application Discontinuation
- 1974-04-26 AU AU68281/74A patent/AU6828174A/en not_active Expired
- 1974-04-26 DE DE2420374A patent/DE2420374A1/de not_active Withdrawn
- 1974-04-26 JP JP49046708A patent/JPS5013292A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5695634A (en) * | 1994-03-01 | 1997-12-09 | Solvay Deutschland Gmbh | Process for catalytic treatment of waste water as well as a process for regenerating a catalyst |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7405672A (enExample) | 1974-10-29 |
| GB1473217A (en) | 1977-05-11 |
| CA1018506A (en) | 1977-10-04 |
| AU6828174A (en) | 1975-10-30 |
| JPS5013292A (enExample) | 1975-02-12 |
| US3879311A (en) | 1975-04-22 |
| BR7403413D0 (pt) | 1974-11-19 |
| BE814275A (fr) | 1974-10-28 |
| FR2227049A1 (enExample) | 1974-11-22 |
| IT1010127B (it) | 1977-01-10 |
| FR2227049B1 (enExample) | 1978-08-04 |
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