Polymerising isobutylene

Isobutylene polymers (PIB) with a mol. wt. of at most 150,000 are produced in a tubular reactor by (i) introducing isobutylene at 0-70 deg. C into the reaction zone at an angle of 30-120 deg. to the bulk of the reaction stream; (ii) introducing an acid catalyst at two points in the reaction zone, at...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: PROKOFIEV KONSTANTIN VASILIEVICH, PIKALOV ANATOLY EVGENIEVICH, KIRILLOV ALEXANDR PETROVICH, KHOROV NIKOLAI IVANOVICH, ENIKOLOPOV NIKOLAI SERGEEVICH, ZABORISTOV NIKOLAEVICH, TOLSTIKOV GENRIKH ALEXANDROVICH, ALEXANIAN GEORGY GARNIKOVICH, PROCHUKHAN JURY, BERLIN ALEXANDR ALEXANDROVICH, MINSKER KARL SAMOILOVICH, ANOSOV VLADIMIR, BAIRAMGULOV DAMINDAR, OSHMIAN VIKTOR GRIGORIEVICH, SANGALOV JURY ALEXANDROVICH, SVINUKHOV GRIGORIEVICH, PLISOV ANATOLY VASILIEVICH
Format: Patent
Sprache:eng ; ita
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Isobutylene polymers (PIB) with a mol. wt. of at most 150,000 are produced in a tubular reactor by (i) introducing isobutylene at 0-70 deg. C into the reaction zone at an angle of 30-120 deg. to the bulk of the reaction stream; (ii) introducing an acid catalyst at two points in the reaction zone, at an angle of 30-15 m/s, 0-60 deg. C, 1-5 atmos. pressure and polymerising. Pref. the catalyst is maintained at 0-90 deg. C and is introduced at a rate resulting in a concn. of 0.01-0.5 wt.%. PIB, (a) with a mol. wt. of 300-1000, are produced at 40-60 deg. C; (b) with a mol. wt. of 1100-20,000 are produced at 10-30 deg. C and (c) with a mol. wt. of 20,000-15,000 are produced at 0-10 deg. C.