ES433200A1 - Process for purifying crude cyanuric acid - Google Patents
Process for purifying crude cyanuric acidInfo
- Publication number
- ES433200A1 ES433200A1 ES433200A ES433200A ES433200A1 ES 433200 A1 ES433200 A1 ES 433200A1 ES 433200 A ES433200 A ES 433200A ES 433200 A ES433200 A ES 433200A ES 433200 A1 ES433200 A1 ES 433200A1
- Authority
- ES
- Spain
- Prior art keywords
- cyanuric acid
- acid
- slurry
- crude
- crude cyanuric
- 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.)
- Expired
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
- C07D251/30—Only oxygen atoms
- C07D251/32—Cyanuric acid; Isocyanuric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Abstract
Process for purifying crude cyanuric acid, characterized in that it comprises mixing sufficient quantities of crude cyanuric acid with an aqueous solution of phosphoric acid containing about 10 to 85% phosphoric acid, based on the weight of phosphoric acid present in the slurry of resulting cyanuric acid, to form a 10-45% slurry of crude cyanuric acid; heating the slurry to a temperature of about 180 to 220º c, under at least the autogenously developed pressure, to digest the crude cyanuric acid; cool the digested cyanuric acid, to precipitate crystals of cyanuric acid; and recover crystals of cyanuric acid. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44782474A | 1974-03-04 | 1974-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES433200A1 true ES433200A1 (en) | 1976-12-01 |
Family
ID=23777899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES433200A Expired ES433200A1 (en) | 1974-03-04 | 1974-12-20 | Process for purifying crude cyanuric acid |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS50117788A (en) |
| AU (1) | AU7254174A (en) |
| BE (1) | BE823545A (en) |
| BR (1) | BR7408103A (en) |
| CA (1) | CA1023735A (en) |
| CH (1) | CH605851A5 (en) |
| DE (1) | DE2439994A1 (en) |
| ES (1) | ES433200A1 (en) |
| FR (1) | FR2263244B1 (en) |
| GB (1) | GB1484731A (en) |
| IT (1) | IT1020175B (en) |
| NL (1) | NL7412068A (en) |
| SE (1) | SE412909B (en) |
| ZA (1) | ZA745347B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3316963A1 (en) * | 1983-05-09 | 1984-11-15 | Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München | METHOD FOR PRODUCING PURE CYANURIC ACID |
-
1974
- 1974-08-06 CA CA206,334A patent/CA1023735A/en not_active Expired
- 1974-08-19 GB GB36343/74A patent/GB1484731A/en not_active Expired
- 1974-08-20 ZA ZA00745347A patent/ZA745347B/en unknown
- 1974-08-20 AU AU72541/74A patent/AU7254174A/en not_active Expired
- 1974-08-21 DE DE2439994A patent/DE2439994A1/en not_active Withdrawn
- 1974-08-21 SE SE7410639A patent/SE412909B/en unknown
- 1974-08-23 CH CH1153374A patent/CH605851A5/xx not_active IP Right Cessation
- 1974-08-23 IT IT26579/74A patent/IT1020175B/en active
- 1974-09-11 NL NL7412068A patent/NL7412068A/xx not_active Application Discontinuation
- 1974-09-30 BR BR8103/74A patent/BR7408103A/en unknown
- 1974-10-09 FR FR7433929A patent/FR2263244B1/fr not_active Expired
- 1974-11-01 JP JP49125586A patent/JPS50117788A/ja active Pending
- 1974-12-18 BE BE151673A patent/BE823545A/en unknown
- 1974-12-20 ES ES433200A patent/ES433200A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2263244B1 (en) | 1978-11-24 |
| SE412909B (en) | 1980-03-24 |
| ZA745347B (en) | 1975-09-24 |
| AU7254174A (en) | 1976-02-26 |
| IT1020175B (en) | 1977-12-20 |
| CA1023735A (en) | 1978-01-03 |
| NL7412068A (en) | 1975-09-08 |
| DE2439994A1 (en) | 1975-09-11 |
| JPS50117788A (en) | 1975-09-16 |
| CH605851A5 (en) | 1978-10-13 |
| BR7408103A (en) | 1976-04-27 |
| FR2263244A1 (en) | 1975-10-03 |
| SE7410639L (en) | 1975-09-05 |
| BE823545A (en) | 1975-06-18 |
| GB1484731A (en) | 1977-09-01 |
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