Producing method for trimethylolalkane

Details Producing method for trimethylolalkane Producing method for trimethylolalkane

1998-10-20

2000-03-07

Geist, Gary

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568914, 568854, C07C 3118

Patent

active

060342846

ABSTRACT:
High quality trimethylolalkane can be easily and efficiently produced at a high yield through a reaction between n-alkanal and formaldehyde in the presence of tertiary amine and water, in which a reaction mixture obtained after the reaction is heated up to a temperature at which a salt of tertiary amine with formic acid produced as a by-product can be thermally dissociated so as to distill tertiary amine and water from the reaction mixture, and a formate of trimethylolalkane produced in the distillation of tertiary amine and contained in a residue is reacted with water, ammonia, primary amine or secondary amine; and the tertiary amine distilled from the reaction mixture is reused in producing trimethylolalkane.

REFERENCES:
patent: 4372833 (1983-02-01), King, Jr.
patent: 4474959 (1984-10-01), Drury
patent: 4514578 (1985-04-01), Immel et al.
patent: 4594461 (1986-06-01), Merger et al.
patent: 5149861 (1992-09-01), Merger
patent: 5334759 (1994-08-01), Lippert
patent: 5763690 (1998-06-01), Salek

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