1,6-hexanediol purifcn - by crystallisation

Very pure 1,6-hexanediol is obtd. from a mixt. with other diols by opt. distilling out the light and heavy fractions and partially crystallising out crude alcohol mixt. by cooling to 42-15 degrees C, followed by sepn. of the crystals, washing with 1,6-hexanediol and recycling of the mother liquor ob...

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Bibliographic Details
Main Authors ADAM,KARL,DR, JOSCHEK,HANSO,DR, HAUG,PETER,DR, HIMMELHAN,EMIL, WITTWER,ARNOLD,DR, AREND,WOLFGANG,DR
Format Patent
LanguageEnglish
German
Published 15.06.1972
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:Very pure 1,6-hexanediol is obtd. from a mixt. with other diols by opt. distilling out the light and heavy fractions and partially crystallising out crude alcohol mixt. by cooling to 42-15 degrees C, followed by sepn. of the crystals, washing with 1,6-hexanediol and recycling of the mother liquor obtd. after sepn. of the crystals to the crude alcohol mixt. prior to its distn. Purity is >99% as reqd. in the prepn. of plastics and esp. fibres.
Bibliography:Application Number: DE19702060548