Process for producing tris (tribromoneopentyl) phosphate

Details Process for producing tris (tribromoneopentyl) phosphate Process for producing tris (tribromoneopentyl) phosphate

1996-05-31

1998-01-20

Ambrose, Michael G.

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

Organic compounds

Phosphorus esters

558203, C07F 909

Patent

active

057103097

ABSTRACT:
The invention relates to a process for producing tris(tribromoneopentyl) phosphate (TTBNPP), which is of value as a flame retardant. The process comprises reacting tribromoneopentyl alcohol with a phosphorus oxyhalide in the presence of anhydrous aluminum chloride as catalyst in an organic solvent to give tris(tribromoneopentyl) phosphate characterized in that a basic magnesium salt is added to the reaction mixture at the completion of the reaction. Compared with the conventional production technology, the process of the invention is conducive to high production safety and insures a high yield and a high recovery rate through a simplified procedure.

REFERENCES:
patent: 4714771 (1987-12-01), Liu

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