Removal of salts in the manufacture of phenolic compound
AssigneeShell Oil Company
InventorsAustin Dale Taggart, II, Edgar Donald Allan, Roberto Carlos Longoria, David Werner Daum, Robert Lawrence Blackbourn
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AssigneeShell Oil Company
InventorsAustin Dale Taggart, II, Edgar Donald Allan, Roberto Carlos Longoria, David Werner Daum, Robert Lawrence Blackbourn
Estimating the term…
There is provided a process for the manufacture of phenolic compounds by separating a neutralized aralkyl hydroperoxide cleavage mass stream containing salts of neutralization into a crude ketone stream and a crude phenolic stream containing the salts of neutralization; separating the crude phenolic stream into a concentrated phenolic-rich stream, enriched in phenolic compounds, and a crude phenolic bottoms stream enriched in tars and alpha methyl styrene dimers, each compared to the crude phenolic stream, said crude phenolic bottoms stream containing salts of neutralization; to the crude phenolic bottoms stream, adding water and a diluent composition, thereby forming a phase separable crude phenolic bottoms stream, said diluent composition comprised of hydrocarbons phase compatible with the crude phenolic bottoms stream and having a combined density lower than the density of the crude phenolic bottoms stream; separating the separable crude phenolic bottoms stream into a hydrocarbon phase and an aqueous phase containing salts of neutralization; whereby the amount of salts of neutralization in the hydrocarbon phase is reduced compared to the amount of salts of neutralization present prior to separation.
A phase separable crude phenolic bottoms stream comprising an organic component effective to retain a majority of phenolic compounds in an organic phase upon separation, said stream comprising at least 40 wt. % water, less than 20 wt. % phenolic compounds, alkali metal salts in an amount of at least 1.5 wt. %, phenolic tars, and α-methyl styrene dimers, wherein the volume ratio of water to all ingredients in said stream other than water is between 1:1 and about 3:1.
A phase separable crude phenolic bottoms stream comprising an organic component effective to retain a majority of phenolic compounds in an organic phase upon separation, said stream comprising:
A phase separable crude phenolic bottoms stream comprising an organic component effective to retain a majority of phenolic compounds in an organic phase upon separation, said stream comprising:
A phase separable crude phenolic bottoms stream comprising an amount of water and an organic component effective to retain a majority of phenolic compounds in an organic phase upon separation, said stream further comprising:
A phase separable crude phenolic bottoms stream comprising an amount of water and an organic component effective to retain a majority of phenolic compounds in an organic phase upon separation, said stream further comprising:
A phase separable crude phenol bottoms stream comprising phenolic compounds, water, and a weight ratio of diluent to a crude phenol bottoms composition of at least 0.15:1, said diluent being effective to retain a majority of said phenolic compounds in an organic phase upon separation.
Dependencies are inferred from the claim text.