Cyclohexanone Compositions and Processes for Making Such Compositions
Disclosed are novel cyclohexanone compositions, and processes for making such cyclohexanone compositions, from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene. Such cyclohexanone compositions comprise at least 99 wt % cyclohexanone, at most 0.15 wt % water, and at most 500 wppm combined of certain cyclohexanone impurities selected from the group consisting of: benzene, cyclohexene, pentanal, cyclopentanol, cyclohexanol, and phenol.
1 . A cyclohexanone composition comprising:
(a) at least 99 wt % cyclohexanone;
(b) 0.15 wt % or less water;
(c) 0 to 10 wppm benzene;
(d) 5 to 10 wppm cyclohexene;
(e) 0 to 10 wppm pentanal;
(f) 0 to 50 wppm cyclopentanol; and
(g) 10 wppm to 40 wppm cyclohexanol;
wherein the wt % and wppm are each based upon total weight of the cyclohexanone composition.
2 . The cyclohexanone composition of claim 12 , comprising at least 99.9 wt % cyclohexanone and at most 0.05 wt % water, based upon the total weight of the cyclohexanone composition.
3 . The cyclohexanone composition of claim 1 , comprising 1 wppm to 10 wppm pentanal, based upon the total weight of the cyclohexanone composition.
4 . The cyclohexanone composition of claim 3 , comprising 10 wppm to 50 wppm cyclopentanol, based upon the total weight of the cyclohexanone composition.
5 . The cyclohexanone composition of claim 1 , comprising 10 wppm to 50 wppm cyclopentanol, based upon the total weight of the cyclohexanone composition.
6 . The cyclohexanone composition of claim 1 , comprising 10 wppm to 20 wppm cyclohexanol.
7 . The cyclohexanone composition of claim 1 , wherein the cyclohexanone composition consists of:
(a) at least 99 wt % cyclohexanone;
(b) 0.15 wt % or less water;
(c) 0 to 10 wppm benzene;
(d) 5 to 10 wppm cyclohexene;
(e) 0 to 10 wppm pentanal;
(f) 0 to 50 wppm cyclopentanol; and
(g) 10 wppm to 40 wppm cyclohexanol;
wherein the wt % and wppm are each based upon total weight of the cyclohexanone composition.
8 . The cyclohexanone composition of claim 7 , wherein the cyclohexanone is present at 99.9 wt % or greater, and further wherein the water is present at 0.05 wt % or less, based upon the total weight of the cyclohexanone composition.
9 . The cyclohexanone composition of claim 7 , wherein the pentanal is present within the range of 1 to 10 wppm, based upon the total weight of the cyclohexanone composition.
10 . The cyclohexanone composition of claim 7 , wherein the cyclopentanol is present within the range of 10 to 50 wppm, based upon the total weight of the cyclohexanone composition.
11 . The cyclohexanone composition of claim 7 , wherein the cyclohexanol is present within the range of 10 wppm to 20 wppm, based upon the total weight of the cyclohexanone composition.
12 . A cyclohexanone composition consisting of:
(a) at least 99 wt % cyclohexanone;
(b) 0.15 wt % or less water; and
(c) 500 wppm or less combined of one or more cyclohexanone impurities;
wherein the cyclohexanone impurities comprise pentanal, cyclopentanol, or both; and further
wherein the wt % and wppm are each based upon total weight of the cyclohexanone composition.
13 . The cyclohexanone composition of claim 12 , wherein the cyclohexanone impurities comprise pentanal and cyclopentanol.
14 . The cyclohexanone composition of claim 12 , wherein the cyclohexanone impurities further comprise one or more of: benzene, cyclohexene, cyclohexanol, and phenol.
15 . The cyclohexanone composition of claim 12 , wherein the cyclohexanone impurities consist of: cyclohexene, pentanal, cyclopentanol, and cyclohexanol.
16 . The cyclohexanone composition of claim 12 , comprising at least 99.9 wt % cyclohexanone, at most 0.05 wt % water, and 200 wppm or less combined of the one or more cyclohexanone impurities.