BR8002683A - Processo para a preparacao de melanina - Google Patents
Processo para a preparacao de melaninaInfo
- Publication number
- BR8002683A BR8002683A BR8002683A BR8002683A BR8002683A BR 8002683 A BR8002683 A BR 8002683A BR 8002683 A BR8002683 A BR 8002683A BR 8002683 A BR8002683 A BR 8002683A BR 8002683 A BR8002683 A BR 8002683A
- Authority
- BR
- Brazil
- Prior art keywords
- melamine
- gas mixture
- desublimator
- gas
- urea
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
- C07D251/60—Preparation of melamine from urea or from carbon dioxide and ammonia
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Catalysts (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Saccharide Compounds (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Fertilizers (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Treating Waste Gases (AREA)
- Cosmetics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7903473A NL7903473A (nl) | 1979-05-03 | 1979-05-03 | Werkwijze voor het bereiden van melamine. |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8002683A true BR8002683A (pt) | 1980-12-16 |
Family
ID=19833094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8002683A BR8002683A (pt) | 1979-05-03 | 1980-04-30 | Processo para a preparacao de melanina |
Country Status (19)
Country | Link |
---|---|
US (1) | US4348520A (pt) |
EP (1) | EP0018695B1 (pt) |
JP (2) | JPS55149268A (pt) |
AT (1) | ATE1504T1 (pt) |
BR (1) | BR8002683A (pt) |
CA (1) | CA1128515A (pt) |
CS (1) | CS220766B2 (pt) |
DE (1) | DE3060795D1 (pt) |
EG (1) | EG14499A (pt) |
ES (1) | ES491105A0 (pt) |
HU (1) | HU184276B (pt) |
IN (1) | IN153077B (pt) |
NL (1) | NL7903473A (pt) |
NO (1) | NO154393C (pt) |
PL (1) | PL223958A1 (pt) |
RO (1) | RO79649A (pt) |
SU (1) | SU1060109A3 (pt) |
YU (1) | YU40776B (pt) |
ZA (2) | ZA802416B (pt) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8201479A (nl) * | 1982-04-07 | 1983-11-01 | Stamicarbon | Werkwijze voor het bereiden van melamine. |
US4565867A (en) * | 1984-01-05 | 1986-01-21 | Melamine Chemicals, Inc. | Anhydrous high-pressure melamine synthesis |
CA1220476A (en) * | 1984-01-05 | 1987-04-14 | David E. Best | Anhydrous high-pressure melamine synthesis |
DE3500188C2 (de) * | 1984-01-05 | 1994-08-18 | Melamine Chemicals Inc | Wasserfreie Hochdruck-Melamin-Synthese |
JP2684409B2 (ja) * | 1988-03-31 | 1997-12-03 | コニカ株式会社 | シアノ基および/またはハロゲン原子で置換されたアニリン類の製造方法およびその製造のために使用される化合物 |
US5389134A (en) * | 1994-07-18 | 1995-02-14 | Xerox Corporation | Ink compositions for ink jet printing |
US20030028020A1 (en) * | 2001-07-27 | 2003-02-06 | Gupta Ram B. | Process for the synthesis of high purity melamine |
DE102005023041B4 (de) * | 2005-05-06 | 2007-10-11 | Lurgi Ag | Verfahren zum Herstellen von Melamin mit Wärmerückgewinnung |
DE102005023042B4 (de) * | 2005-05-06 | 2007-10-31 | Lurgi Ag | Verfahren zur Herstellung von Melamin |
EP2050740A1 (de) * | 2007-10-15 | 2009-04-22 | Basf Se | Verfahren zur Herstellung von Melamin |
DE102008032425B4 (de) * | 2008-07-10 | 2015-07-30 | Air Liquide Global E&C Solutions Germany Gmbh | Verfahren und Anlage zur Herstellung von Melamin |
DE102009052420C5 (de) * | 2009-11-10 | 2014-05-22 | Lurgi Gmbh | Verfahren zur kontinuierlichen Herstellung von Melamin |
CN113375133A (zh) * | 2021-06-23 | 2021-09-10 | 四川金象赛瑞化工股份有限公司 | 利用三聚氰胺生产系统生产高品位蒸汽生产装置及其生产高品位蒸汽的方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1670126A1 (de) * | 1966-08-09 | 1970-10-29 | Basf Ag | Verfahren zur Kuehlung der bei der Melaminsynthese erhaltenen Abgase |
DE1670286A1 (de) * | 1967-11-11 | 1971-01-28 | Basf Ag | Verfahren zur Aufarbeitung der bei der Melaminsynthese anfallenden Abgase |
DE1812120C3 (de) * | 1968-12-02 | 1974-02-28 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von Melamin |
US3700672A (en) * | 1969-04-15 | 1972-10-24 | Nissan Chemical Ind Ltd | Process for recovering by-product gases at high pressure in melamine production |
US3723430A (en) * | 1970-10-28 | 1973-03-27 | Nissan Chemical Ind Ltd | Method for reclamation of melamine waste gas |
US3895007A (en) * | 1972-04-28 | 1975-07-15 | Basf Ag | Manufacture of melamine |
NL178487C (nl) * | 1976-03-26 | 1986-04-01 | Stamicarbon | Inrichting en werkwijze voor het versproeien van een vloeistof. |
RO74590A (ro) * | 1977-01-19 | 1981-08-30 | Stamicarbon Bv,Nl | Procedeu de preparare a melaminei din uree |
-
1979
- 1979-05-03 NL NL7903473A patent/NL7903473A/nl not_active Application Discontinuation
-
1980
- 1980-04-22 ZA ZA00802416A patent/ZA802416B/xx unknown
- 1980-04-22 ZA ZA00802417A patent/ZA802417B/xx unknown
- 1980-04-29 SU SU802913806A patent/SU1060109A3/ru active
- 1980-04-29 HU HU801064A patent/HU184276B/hu unknown
- 1980-04-30 BR BR8002683A patent/BR8002683A/pt unknown
- 1980-04-30 YU YU1178/80A patent/YU40776B/xx unknown
- 1980-04-30 EG EG80265A patent/EG14499A/xx active
- 1980-04-30 RO RO80101025A patent/RO79649A/ro unknown
- 1980-05-01 EP EP80200403A patent/EP0018695B1/en not_active Expired
- 1980-05-01 AT AT80200403T patent/ATE1504T1/de active
- 1980-05-01 DE DE8080200403T patent/DE3060795D1/de not_active Expired
- 1980-05-02 JP JP5937380A patent/JPS55149268A/ja active Pending
- 1980-05-02 NO NO801283A patent/NO154393C/no unknown
- 1980-05-02 JP JP5937280A patent/JPS55149267A/ja active Pending
- 1980-05-02 PL PL22395880A patent/PL223958A1/xx unknown
- 1980-05-02 ES ES491105A patent/ES491105A0/es active Granted
- 1980-05-02 US US06/146,181 patent/US4348520A/en not_active Expired - Lifetime
- 1980-05-03 IN IN510/CAL/80A patent/IN153077B/en unknown
- 1980-05-04 CS CS803102A patent/CS220766B2/cs unknown
- 1980-05-09 CA CA351,210A patent/CA1128515A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES8101057A1 (es) | 1980-12-01 |
ATE1504T1 (de) | 1982-09-15 |
RO79649A (ro) | 1982-08-17 |
IN153077B (pt) | 1984-05-26 |
DE3060795D1 (en) | 1982-10-28 |
NO154393C (no) | 1986-09-10 |
JPS55149267A (en) | 1980-11-20 |
EP0018695A1 (en) | 1980-11-12 |
YU40776B (en) | 1986-06-30 |
EP0018695B1 (en) | 1982-09-01 |
CS220766B2 (en) | 1983-04-29 |
ZA802416B (en) | 1981-04-29 |
NL7903473A (nl) | 1980-11-05 |
YU117880A (en) | 1983-10-31 |
ES491105A0 (es) | 1980-12-01 |
ZA802417B (en) | 1981-04-29 |
HU184276B (en) | 1984-07-30 |
EG14499A (en) | 1985-03-31 |
CA1128515A (en) | 1982-07-27 |
JPS55149268A (en) | 1980-11-20 |
NO154393B (no) | 1986-06-02 |
PL223958A1 (pt) | 1981-02-13 |
US4348520A (en) | 1982-09-07 |
SU1060109A3 (ru) | 1983-12-07 |
NO801283L (no) | 1980-11-04 |
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