发明名称 |
PROCESS FOR ISOLATING CRYSTALLIZED 2,2,4,4-TETRAMETHYL-1,3-CYCLOBUTANEDIOL (TMCD) PARTICLES UTILIZING PRESSURE FILTRATION |
摘要 |
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. |
申请公布号 |
US2015232400(A1) |
申请公布日期 |
2015.08.20 |
申请号 |
US201514702141 |
申请日期 |
2015.05.01 |
申请人 |
Eastman Chemical Company |
发明人 |
PARKER KENNY RANDOLPH;Hoyme Craig Alan |
分类号 |
C07C29/76 |
主分类号 |
C07C29/76 |
代理机构 |
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代理人 |
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主权项 |
1. A process for isolating crystallized 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) particles comprising:
treating an isolation feed slurry comprising the 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) particles in a product isolation zone to produce an isolated TMCD product wet cake comprising the 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD), wherein the product isolation zone comprises a rotary pressure drum filter having a wash ratio ranging from 0.4 to 5.0; wherein said TMCD particles comprise 5% to 45% weight percent solids in the feed slurry; wherein said feed slurry have a mean particle size ranging from less than 50 microns to about 600 microns; and wherein the discharged filter cake results has a weight % TMCD particles greater than 10 weight percent. |
地址 |
Kingsport TN US |