IT1124310B - Isobutylene sepn. from hydrocarbon fractions - by countercurrent hydration followed by dehydration of tert.-butanol - Google Patents

Isobutylene sepn. from hydrocarbon fractions - by countercurrent hydration followed by dehydration of tert.-butanol

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Publication number
IT1124310B
IT1124310B IT4154479A IT4154479A IT1124310B IT 1124310 B IT1124310 B IT 1124310B IT 4154479 A IT4154479 A IT 4154479A IT 4154479 A IT4154479 A IT 4154479A IT 1124310 B IT1124310 B IT 1124310B
Authority
IT
Italy
Prior art keywords
countercurrent
sepn
isobutylene
butanol
hydrocarbon fractions
Prior art date
Application number
IT4154479A
Other languages
Italian (it)
Other versions
IT7941544A0 (en
Original Assignee
Chaplits Donat N
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chaplits Donat N filed Critical Chaplits Donat N
Priority to IT4154479A priority Critical patent/IT1124310B/en
Publication of IT7941544A0 publication Critical patent/IT7941544A0/en
Application granted granted Critical
Publication of IT1124310B publication Critical patent/IT1124310B/en

Links

Abstract

Sepn. of isobutylene (I) from 4C hydrocarbon fractions is carried out by (a) contacting the feed with H2O at 70-110 degrees C and 16-23 atm. in the presence of a shaped ion-exchanger catalyst, and (b) dehydrating the resulting t-butanol (II) at 80-110 degrees C and =3 atm. in the presence of the same catalyst. The improvement is characterised in that the feed and H2O are contacted in countercurrent in step (a), with an H2O supply rate of 5-30 m/sec. and a 4C feed flow rate through the catalyst bed of 0.001-0.020 m/sec. Countercurrent contacting increases the reaction rate and allows (I) to be recovered in yields of up to 99.98%.
IT4154479A 1979-03-30 1979-03-30 Isobutylene sepn. from hydrocarbon fractions - by countercurrent hydration followed by dehydration of tert.-butanol IT1124310B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT4154479A IT1124310B (en) 1979-03-30 1979-03-30 Isobutylene sepn. from hydrocarbon fractions - by countercurrent hydration followed by dehydration of tert.-butanol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT4154479A IT1124310B (en) 1979-03-30 1979-03-30 Isobutylene sepn. from hydrocarbon fractions - by countercurrent hydration followed by dehydration of tert.-butanol

Publications (2)

Publication Number Publication Date
IT7941544A0 IT7941544A0 (en) 1979-03-30
IT1124310B true IT1124310B (en) 1986-05-07

Family

ID=11250930

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4154479A IT1124310B (en) 1979-03-30 1979-03-30 Isobutylene sepn. from hydrocarbon fractions - by countercurrent hydration followed by dehydration of tert.-butanol

Country Status (1)

Country Link
IT (1) IT1124310B (en)

Also Published As

Publication number Publication date
IT7941544A0 (en) 1979-03-30

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