Process for isolating crystallized 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) particles utilizing pressure filtration

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United States of America Patent

PATENT NO 8859825
APP PUB NO 20120157720A1
SERIAL NO

13330052

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Abstract

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A method for isolating 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) solids from an isolated feed slurry formed in a TMCD process comprising TMCD, a liquid phase, and impurities by (a) treating the isolated feed slurry in a product isolation zone to produce an isolated TMCD product wet cake, a mother liquor, and impurities; wherein the product isolation zone can comprise at least one rotary pressure drum filter.

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Patent Owner(s)

Patent OwnerAddress
EASTMAN CHEMICAL COMPANY200 SOUTH WILCOX DRIVE KINGSPORT TN 37660

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoyme, Craig Alan Kingsport, US 14 19
Parker, Kenny Randolph Afton, US 192 2970

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