GB671458A - Extractive crystallisation process - Google Patents
Extractive crystallisation processInfo
- Publication number
- GB671458A GB671458A GB870148A GB870148A GB671458A GB 671458 A GB671458 A GB 671458A GB 870148 A GB870148 A GB 870148A GB 870148 A GB870148 A GB 870148A GB 671458 A GB671458 A GB 671458A
- Authority
- GB
- United Kingdom
- Prior art keywords
- complexes
- urea
- organic compounds
- diluents
- solvents
- 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
- 238000000034 method Methods 0.000 title abstract 5
- 238000002425 crystallisation Methods 0.000 title 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 3
- 239000004202 carbamide Substances 0.000 abstract 3
- 150000002894 organic compounds Chemical class 0.000 abstract 3
- 239000003085 diluting agent Substances 0.000 abstract 2
- 239000011541 reaction mixture Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 150000003672 ureas Chemical class 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Urea complexes of straight-chain organic compounds are formed by treating a mixture of organic compounds with urea at a series of successively lower temperature levels and separating the complexes formed at each level. The starting temperature may be about 75-100 DEG C., and diluents or solvents may be added to the reaction mixture. Complexes containing varying proportions of urea may be formed by varying the conditions of reaction. The organic compounds treated, the methods for the separation and regeneration of the straight-chain compounds from the complexes and the applications of the process are those described in Specification 671,456. Specification 671,457 also is referred to.ALSO:Oils are refined by treating with urea at a series of p successively lower temperature levels and separating the urea complexes formed at each level. The starting temperature may be about 75-100 DEG C., and diluents or solvents may be added to the reaction mixture. The complexes may be separated and decomposed by methods described in Specification 671,456 and the applications of the process are also those mentioned in that Specification. Specification 671,457 also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB870148A GB671458A (en) | 1948-03-24 | 1948-03-24 | Extractive crystallisation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB870148A GB671458A (en) | 1948-03-24 | 1948-03-24 | Extractive crystallisation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB671458A true GB671458A (en) | 1952-05-07 |
Family
ID=9857584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB870148A Expired GB671458A (en) | 1948-03-24 | 1948-03-24 | Extractive crystallisation process |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB671458A (en) |
-
1948
- 1948-03-24 GB GB870148A patent/GB671458A/en not_active Expired
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