Propylene Tetramer (PTM)
Propylene tetramer (PTM), also known as dodecene, is a branched C12 olefin, produced by oligomerisation of propylene. Propylene tetramer is the preferred name as this distinguishes it from other C12 molecules such as 1-dodecene, the linear alpha-olefin derived from ethylene.
Janex offers various “cuts” of propylene tetramer from a broad cut with around 60% C12 content, to a narrow cut with over 90% C12.
It is generally supplied either in parcel tankers or in iso-tanks.
Propylene Tetramer CAS 93821-12-6 / EC 6842-15-5
Propylene is oligomerised by catalytic olefin condensation to produce a higher olefin liquid mixture called polygas which is then separated by distillation.
Several acid catalysts can be used including solid phosphoric acid (SPA) and zeolites.
- Branched dodecylbenzene (also known as BAB or branched alkylbenzene)
- C12 isoparaffin
- Dodecyl diphenyloxide sulfonate (surfactant for latex, rubber & textiles)
- Dodecylphenol (DDP)
- Neotridecanoic acid
- Tert-dodecyl mercaptan (TDM)
- Tetrapropylene succinic anhydride or acid (anti-rust agent, curing agent for epoxy resin and intermediate)
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