Main > INORGANIC CHEMICALS > Acid > Thiophosphoric Acid > Triamide > Recovery. Sepn

Product USA. A

PATENT ASSIGNEE'S COUNTRY USA
UPDATE 09.99
PATENT ASSIGNEE Albemarle
PATENT CLAIMS Process for sepn & recovery OP(NH-R)3 or SP(NH-R)3; R =
hydrocarbyl from liquid mixt contg inert organic solvent
- Continuously introducing stream of liquid mixt into wiped
film evaporator operating at 60-140C & pressure that avoids
solids formation on heating surface
- Continuously collecting purified triamide
PATENT PHOTOCOPY Available on request

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