Method for the continuous performance of esterification under thermal conditions
Abstract
Abstract A DEVICE FOR CONTINUOUSLY PERFORMING CHEMICAL PROCESSES AND REACTIONS WHICH REQUIRE HEAT ADMINISTRATION FROM THE OUTSIDE AND ARE CONDUCTIVE TO THE EVOLUTION OF VOLATILE BY-PRODUCTS, SUCH AS THE PROCESSES LEADING TO THE PRODUCTION OF SPINNABLE POLYESTERS. THE DEVICE COMPRISES A REACTOR HAVING SUBSTANTIALLY VERTICAL METAL WALLS, MEANS FOR INTRODUCING THE REACTANT AND THE REACTED PRODUCT WHICH IS RECYCLED AT THE REACTOR TOP, CENTRIFUGING MEANS FOR HURLING THE PRODUCTS INTRODUCED AT THE TOP OF SAID WALLS FOR CAUSING THEM TO DESCEND IN THE FORM OF A LIQUID FILM THEREALONG, AND MEANS FOR RECYCLING A FRACTION OF THE PRODUCT WHICH HAS BEEN COLLECTED AT THE BASE OF THE REACTOR, TOWARDS THE TOP THEREOF. A CHEMICAL PROCESS UTILIZING SUCH A REACTOR AND INVOLVING THE REMOVAL OF THE BY-PRODUCTS, SET FREE IN THEIR VOLATILE FORM AT THE TOP OF THE REACTOR AS THEY ARE EVOLVED AND SET FREE FROM SAID LIQUID FILM.
Inventors
- 👤 F Siclari
- 👤 C Maderno
- 👤 F Magnoni
- 👤 S Fulmini
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |