AP786A - Process for preparing alkali metal cyanide and alkaline earth metal cyanide granules and the high purity alkali metal cyanide granules obtainable thereby. - Google Patents
Process for preparing alkali metal cyanide and alkaline earth metal cyanide granules and the high purity alkali metal cyanide granules obtainable thereby. Download PDFInfo
- Publication number
- AP786A AP786A APAP/P/1998/001197A AP9801197A AP786A AP 786 A AP786 A AP 786A AP 9801197 A AP9801197 A AP 9801197A AP 786 A AP786 A AP 786A
- Authority
- AP
- ARIPO
- Prior art keywords
- gas
- alkali metal
- granules
- cyanide
- reactor
- Prior art date
Links
- 239000008187 granular material Substances 0.000 title claims abstract description 81
- -1 alkali metal cyanide Chemical class 0.000 title claims abstract description 80
- 229910052783 alkali metal Inorganic materials 0.000 title claims abstract description 75
- 229910052784 alkaline earth metal Inorganic materials 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000007789 gas Substances 0.000 claims abstract description 193
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims abstract description 139
- 238000000034 method Methods 0.000 claims abstract description 112
- 230000008569 process Effects 0.000 claims abstract description 107
- 239000000243 solution Substances 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910001868 water Inorganic materials 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 238000006189 Andrussov oxidation reaction Methods 0.000 claims abstract description 21
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 14
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 13
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000725 suspension Substances 0.000 claims abstract description 11
- 238000005469 granulation Methods 0.000 claims abstract description 10
- 230000003179 granulation Effects 0.000 claims abstract description 10
- 239000007864 aqueous solution Substances 0.000 claims abstract description 8
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 3
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims abstract 3
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 28
- 239000012495 reaction gas Substances 0.000 claims description 27
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 23
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 claims description 17
- 229910000288 alkali metal carbonate Inorganic materials 0.000 claims description 13
- 150000008041 alkali metal carbonates Chemical class 0.000 claims description 13
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 claims description 13
- 239000002585 base Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Substances [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 10
- 238000005299 abrasion Methods 0.000 claims description 9
- 239000006227 byproduct Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000005201 scrubbing Methods 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 239000012798 spherical particle Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 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 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- 238000002485 combustion reaction Methods 0.000 description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 description 11
- 238000010791 quenching Methods 0.000 description 11
- 230000000171 quenching effect Effects 0.000 description 11
- 239000012530 fluid Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 239000003380 propellant Substances 0.000 description 7
- 235000011121 sodium hydroxide Nutrition 0.000 description 7
- 239000003513 alkali Substances 0.000 description 6
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000009477 fluid bed granulation Methods 0.000 description 6
- 238000006386 neutralization reaction Methods 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- CWVZGJORVTZXFW-UHFFFAOYSA-N [benzyl(dimethyl)silyl]methyl carbamate Chemical compound NC(=O)OC[Si](C)(C)CC1=CC=CC=C1 CWVZGJORVTZXFW-UHFFFAOYSA-N 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000011118 potassium hydroxide Nutrition 0.000 description 3
- 238000001694 spray drying Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 description 2
- 150000004692 metal hydroxides Chemical class 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 2
- 235000019254 sodium formate Nutrition 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 241001397173 Kali <angiosperm> Species 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/08—Simple or complex cyanides of metals
- C01C3/10—Simple alkali metal cyanides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/08—Simple or complex cyanides of metals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/50—Agglomerated particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- 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
- C01P2006/90—Other properties not specified above
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19704180A DE19704180C1 (de) | 1997-02-05 | 1997-02-05 | Verfahren zur Herstellung von Alkalicyanid- und Erdalkalicyanid-Granulaten und hierbei erhältliche Alkalicyanid-Granulate hoher Reinheit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AP9801197A0 AP9801197A0 (en) | 1998-03-31 |
| AP786A true AP786A (en) | 1999-11-26 |
Family
ID=7819283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| APAP/P/1998/001197A AP786A (en) | 1997-02-05 | 1998-02-04 | Process for preparing alkali metal cyanide and alkaline earth metal cyanide granules and the high purity alkali metal cyanide granules obtainable thereby. |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US5958588A (zh) |
| EP (1) | EP0857689B1 (zh) |
| JP (1) | JP3537656B2 (zh) |
| KR (1) | KR100422264B1 (zh) |
| CN (1) | CN1176021C (zh) |
| AP (1) | AP786A (zh) |
| AU (1) | AU721518B2 (zh) |
| BR (1) | BR9800554A (zh) |
| CA (1) | CA2228809A1 (zh) |
| CZ (1) | CZ28998A3 (zh) |
| DE (2) | DE19704180C1 (zh) |
| ES (1) | ES2137788T3 (zh) |
| RU (1) | RU2201895C2 (zh) |
| SK (1) | SK14398A3 (zh) |
| TW (1) | TW371649B (zh) |
| ZA (1) | ZA98908B (zh) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10006862A1 (de) * | 2000-02-16 | 2001-09-06 | Degussa | Verfahren zur Herstellung von Formlingen anorganischer Cyanide und nach dem Verfahren erhältliche Produkte |
| NO315275B1 (no) * | 2001-02-23 | 2003-08-11 | Norsk Hydro As | Frittflytende produkter omfattende kaliumformiat |
| DE10127240B4 (de) * | 2001-05-22 | 2005-05-12 | Hüttlin, Herbert, Dr.h.c. | Vorrichtung zum Behandeln von partikelförmigem Gut |
| DE10150325A1 (de) | 2001-10-15 | 2003-04-24 | Degussa | Verfahren zur Herstellung oder Beschichtung von Granulaten, Vorrichtung zur Durchführung des Verfahrens und hiernach erhältliche Granulate |
| DE102005026326A1 (de) * | 2005-06-07 | 2006-12-14 | Basf Ag | Verfahren zur Herstellung von Salzen der Blausäure |
| US8894961B2 (en) | 2009-05-22 | 2014-11-25 | E I Du Pont De Nemours And Company | Sodium cyanide process |
| DE102011075595A1 (de) * | 2011-05-10 | 2012-11-15 | Evonik Degussa Gmbh | Verfahren zur Herstellung von Kohlefasern |
| CN102502708B (zh) * | 2011-10-21 | 2013-11-13 | 重庆紫光天化蛋氨酸有限责任公司 | 一种高纯度、高收率的碱金属或碱土金属氰化物的制备方法 |
| DE102012220341A1 (de) * | 2012-11-08 | 2014-05-08 | Evonik Industries Ag | Kohlenstofffaserherstellung mit verbesserter Blausäuregewinnung |
| DE102015211231A1 (de) * | 2015-06-18 | 2016-12-22 | Epc Engineering Consulting Gmbh | Weiterentwickelte Anlage zur Herstellung von Natriumcyanid |
| DE102015211233A1 (de) * | 2015-06-18 | 2016-12-22 | Epc Engineering Consulting Gmbh | Effizientes Verfahren zum Entgiften von cyanidhaltigen Abgasen und Abwässern in einem Verfahren zur Herstellung von Alkalimetallcyaniden |
| DE102017201182A1 (de) * | 2017-01-25 | 2018-07-26 | Thyssenkrupp Ag | Verfahren und Anlage zur Wärmerückgewinnung bei der Fließbettgranulation |
| CN113015699A (zh) * | 2018-09-14 | 2021-06-22 | 博特化工装置股份公司 | 生产苛性钠颗粒的方法和装置 |
| CN109603279B (zh) * | 2019-02-22 | 2021-12-24 | 高云芝 | 一种升降温分段拦截提取物的过滤机组 |
| CN110470789B (zh) * | 2019-08-26 | 2022-07-05 | 四川达兴能源股份有限公司 | 一种焦炉煤气中氰化氢的测定方法 |
| WO2022015717A1 (en) * | 2020-07-14 | 2022-01-20 | Cyanco Corporation | Improved alkali metal cyanide production |
| CN115364777B (zh) * | 2020-12-24 | 2023-09-08 | 内蒙古华镒环境工程有限公司 | 铅银渣回收方法 |
| CN114857578B (zh) * | 2022-05-31 | 2024-10-29 | 邹平县宏旭热电有限公司 | 一种改善四角切圆锅炉火焰中心偏斜的热态研究方法 |
| DE102023127413A1 (de) | 2023-10-09 | 2025-04-10 | Dbfz Deutsches Biomasseforschungszentrum Gemeinnützige Gmbh | Vorrichtung und Verfahren zur Herstellung von Alkalihydrogencarbonaten aus biogenem Kohlendioxid und zur Aufbereitung von biogenem Rohgas sowie granuliertes Alkalihydrogencarbonat |
| CN117466390A (zh) * | 2023-10-20 | 2024-01-30 | 华能应城热电有限责任公司 | 一种电化学法回收蓝铁矿装置及其工作方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0066211A1 (de) * | 1981-06-01 | 1982-12-08 | Mobay Chemical Corporation | Katalytische Hydrierung von Di-(4-aminophenyl)methan |
| EP0600282A2 (de) * | 1992-12-04 | 1994-06-08 | Degussa Aktiengesellschaft | Alkalicyanid-Granulate und Verfahren zu ihrer Herstellung |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB320733A (en) * | 1928-09-15 | 1929-10-24 | Ig Farbenindustrie Ag | Improvements in the manufacture and production of calcium cyanide |
| US1909042A (en) * | 1928-10-15 | 1933-05-16 | Roessler & Hasslacher Chemical | Calcium cyanide |
| JPS52110300A (en) * | 1976-03-12 | 1977-09-16 | Nippon Soda Co Ltd | Production of high purity alkali cyanate |
| CA1247316A (en) * | 1985-04-04 | 1988-12-28 | Daniel E. Harrison | Sodium cyanide briquetting |
| US4847062A (en) * | 1987-09-24 | 1989-07-11 | E. I. Du Pont De Nemours And Company | Process for production of sodium cyanide |
| DE3832883A1 (de) * | 1988-09-28 | 1990-03-29 | Degussa | Verfahren zur herstellung von alkalicyaniden |
| DE4240318A1 (de) * | 1992-12-01 | 1994-06-09 | Glatt Ingtech Gmbh | Verfahren zur Herstellung von festem Natriumcyanid |
-
1997
- 1997-02-05 DE DE19704180A patent/DE19704180C1/de not_active Expired - Fee Related
-
1998
- 1998-01-14 EP EP98100504A patent/EP0857689B1/de not_active Expired - Lifetime
- 1998-01-14 DE DE59800022T patent/DE59800022D1/de not_active Expired - Lifetime
- 1998-01-14 ES ES98100504T patent/ES2137788T3/es not_active Expired - Lifetime
- 1998-01-19 TW TW087100658A patent/TW371649B/zh active
- 1998-01-24 CN CNB981000789A patent/CN1176021C/zh not_active Expired - Lifetime
- 1998-01-30 CZ CZ98289A patent/CZ28998A3/cs unknown
- 1998-02-02 SK SK143-98A patent/SK14398A3/sk unknown
- 1998-02-02 JP JP02078098A patent/JP3537656B2/ja not_active Expired - Lifetime
- 1998-02-04 ZA ZA98908A patent/ZA98908B/xx unknown
- 1998-02-04 CA CA002228809A patent/CA2228809A1/en not_active Abandoned
- 1998-02-04 RU RU98101812/12A patent/RU2201895C2/ru active
- 1998-02-04 BR BR9800554-5A patent/BR9800554A/pt not_active IP Right Cessation
- 1998-02-04 AU AU52930/98A patent/AU721518B2/en not_active Expired
- 1998-02-04 AP APAP/P/1998/001197A patent/AP786A/en active
- 1998-02-05 KR KR1019980003189A patent/KR100422264B1/ko not_active Expired - Lifetime
- 1998-02-05 US US09/018,894 patent/US5958588A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0066211A1 (de) * | 1981-06-01 | 1982-12-08 | Mobay Chemical Corporation | Katalytische Hydrierung von Di-(4-aminophenyl)methan |
| EP0600282A2 (de) * | 1992-12-04 | 1994-06-08 | Degussa Aktiengesellschaft | Alkalicyanid-Granulate und Verfahren zu ihrer Herstellung |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1176021C (zh) | 2004-11-17 |
| TW371649B (en) | 1999-10-11 |
| EP0857689A1 (de) | 1998-08-12 |
| RU2201895C2 (ru) | 2003-04-10 |
| ZA98908B (en) | 1998-08-04 |
| CN1190080A (zh) | 1998-08-12 |
| AU721518B2 (en) | 2000-07-06 |
| EP0857689B1 (de) | 1999-08-25 |
| ES2137788T3 (es) | 1999-12-16 |
| KR100422264B1 (ko) | 2004-05-27 |
| JP3537656B2 (ja) | 2004-06-14 |
| KR19980071088A (ko) | 1998-10-26 |
| AU5293098A (en) | 1998-08-13 |
| DE19704180C1 (de) | 1998-08-20 |
| AP9801197A0 (en) | 1998-03-31 |
| CA2228809A1 (en) | 1998-08-05 |
| JPH10310424A (ja) | 1998-11-24 |
| DE59800022D1 (de) | 1999-09-30 |
| BR9800554A (pt) | 1999-09-28 |
| SK14398A3 (en) | 1998-08-05 |
| CZ28998A3 (cs) | 1998-08-12 |
| US5958588A (en) | 1999-09-28 |
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