substance
tert-Butanol (2-methylpropan-2-ol)
- Formula
- C4H10O
- CAS
- 75-65-0
- InChIKey
- DKGAVHZHDRPRBM-UHFFFAOYSA-N
- ChEBI
- CHEBI:45895
Made by
- tert-Butanol by direct hydration of isobutene over an acidic ion-exchange resinMain productConcept · not reviewed
Used by
- Potassium tert-butoxide from potassium and dry tert-butanol, semi-batch with alcohol strip and vacuum drying (1000 t/a)FeedstockConcept · not reviewed
Takes part in
- 2K+2C4H10Ogives2C4H9KO+H2Reactant · Potassium with tert-butanol to potassium tert-butoxide and hydrogen · one process
- 2KTBC+COCl2givesC4H10O+C4H8+3CO2+2ClKProduct · Loss to tert-butanol and isobutene (lumped acidic by-product path) · one process
Routes compared
One route in the Atlas makes tert-Butanol (2-methylpropan-2-ol): nothing to compare yet. A comparison appears when a second route is added.
Per 1 kg of tert-Butanol (2-methylpropan-2-ol): inventory from each route's LCI dataset, unallocated; footprints per the functional unit of their own LCA.
| Route | Tier, design maturity, review status | Geography, year | Energy | Feedstocks | Key emissions | Footprint | Comparability |
|---|---|---|---|---|---|---|---|
| tert-Butanol by direct hydration of isobutene over an acidic ion-exchange resinliquid-phase hydration of isobutene on strongly acidic cation-exchange resin in continuous fixed-bed reactors in series (30 to 120 degC, preferably 35 to 70 degC, in US 7,179,948 B2; 85 to 90 degC in US 4,180,688 A), with distillation; the PO/TBA co-product route and the sulfuric-acid route are not modelled | Tier 0 (stoichiometric)Design maturity: Concept (research)Not independently reviewedDataset review: unreviewed | GLO, 2007 |
|
| none | no footprint | – |
ISO 14044 requires a critical review (by a panel of interested parties, ISO/TS 14071) of a comparative assertion intended to be disclosed to the public. These routes are listed side by side for screening; a statement that one is better than another needs that review. None of these routes has had such a review.