FOERFARANDE OCH ANORDNING FOER KONTROLL AV AKTIVERINGSREAKTIONER FOER ZIEGLER-NATTA KATALYSATORBAERARE SAMT ANVAENDNING AV DESSA

• Main Author: GAROFF, THOMAS
• Format: Patent
• Language: Finnish
• Published: 31.12.1989
• Edition: 4
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention concerns a procedure for observing the activation reactions of Ziegler-Natta catalyst carriers when preparing Ziegler-Natta catalysts. In the procedure, the development of hydrochloric acid (HCl) is followed by conducting the produced hydrochloric acid (HCl) into a hydrochloric acid absorption vessel (7) in which a medium has been placed, wherein the hydrochloric acid is absorbed, whereby the quantity of the produced hydrochloric acid in the absorption vessel is monitored with by means of the pH value of the solution, a pH sensor, or with the aid of the quantity of base fed into the solution, required for neutralizing the solution, or for achieving a given pH value of said solution. The present invention also concerns a means for implementing the procedure of the invention, said means advantageously comprising a control appratus (11), with the aid of which base is fed automatically into the absorption vessel in such a quantity on the basis of the pH value yielded by the pH sensor immersed into the solution that the pH value of the absorption solution achieves the desired value.