The M.w. Kellogg Company

Texaco Chemical Inc.

Huibert Sybrandus Jongenburger

Robert B Armstrong

Pasupati Sadhukhan

A tertiary butyl hydroperoxide reaction product is distilled to provide a tertiary butyl alcohol distillation fraction containing tertiary butyl alcohol and a heavier fraction containing unreacted tertiary butyl hydroperoxide, and reaction by-products boiling below tertiary butyl alcohol, the tertiary butyl alcohol fraction is charged to a vacuum distillation column for separation into a vaporized overhead tertiary butyl alcohol fraction that is cooled to obtain a liquefaction product containing a minor amount of vaporized tertiary butyl alcohol and a major amount of a liquified tertiary butyl alcohol, and the tertiary butyl alcohol vapors are dissolved in water to form an aqueous solution of tertiary butyl alcohol from which the tertiary butyl alcohol is recovered.

Method for enhancing the yield of tertiary butyl alcohol in a tertiary

A distillation method for the purification of crude propylene oxide containing contaminating quantities of water and methanol by partially purifying the crude propylene oxide in a plural stage distillation zone to provide a vaporized overhead distillate propylene oxide fraction containing a minor contaminating amount of vaporized water, and passing the propylene oxide vapor fraction through a drying chamber containing a porous hygroscopic solid absorbent to selectively absorb water vapor onto the absorbent, and liquefying and recovering the thus-dehydrated purified propylene oxide.

Recovery of purified and substantially anhydrous propylene oxide

An apparatus for contacting fluids combined with solids comprises a cylindrical vessel with a slurry or liquid feed inlet port, a liquid outlet port, a gas inlet port and a gas outlet port. The vessel includes a lower cylindrical baffle which defines a stilling chamber therearound, the main contacting section of the vessel being above the stilling chamber. The lower end of the baffle extends below the liquid outlet port which discharges liquid from the stilling chamber. A cylindrical member is disposed in the cylindrical vessel inwardly of the stilling chamber. It has a lower end which is aligned with the gas inlet port for receiving gas therefrom and an upper end which is higher than a lower edge of the cylindrical baffle. The main contacting section above the cylindrical member has a height which makes a ratio with a length of the cylindrical member having a value within the range between 2 and 50.

Apparatus for contacting fluid with solid

A hydrotreating reactor having a plurality of vertically spaced contacting stages having frusto-conical baffles for back-mixing hydrocarbon oil being treated and a plurality of clear oil outlets in fluid communication with a corresponding plurality of annular stilling chambers.

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Houston, TX, United States of America

Huibert Sybrandus Jongenburger