METHOD OF WOOD TAR PROCESSING .1. OBTAINING OF MALTOL AND CICLOTEN COMPOUNDS
Constantinescu, T; Rusanescu, G; Radulescu, S; Marinescu, F; Mutihac, L; Budrugeac, S; Puricel, E; Stancioiu, C
| HERO ID | 1957931 |
|---|---|
| In Press | No |
| Year | 1991 |
| Title | METHOD OF WOOD TAR PROCESSING .1. OBTAINING OF MALTOL AND CICLOTEN COMPOUNDS |
| Authors | Constantinescu, T; Rusanescu, G; Radulescu, S; Marinescu, F; Mutihac, L; Budrugeac, S; Puricel, E; Stancioiu, C |
| Journal | Revista de Chimie |
| Volume | 42 |
| Issue | 1-3 |
| Page Numbers | 44-52 |
| Abstract | The paper presents a process for the obtaining of the MALTOL (I) and CYCLOTEN (II) compounds of a purity higher than 99% by separation from wood tar as follows: (1) steaming of the I + II mixture (preferably in the presence of the ammonium sulphate in order to increase the amount of involved compounds); (2) L/L selective extraction of the I + II mixture in the aqueous phase steamed at two pH values (with chloroform at pH = 7 and carbon tetrachloride at pH << 1); (3) separation of the I and II compounds from the I + II mixture based on the insolubility of the pirylium salt (I H + Cl-) in chloroform; (4) purification of the isolated I-II compounds. Because the steaming technique is used on a large scale for the obtaining of finite wood tar the process also allows the purification of the industrial waters which may be recycled or drained (after a biological treatment); the result is an oily secondary product which may be further processed to obtain other compounds. |
| Wosid | WOS:A1991GJ28200007 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |