The Dow Chemical Company

Lawrence A Hebert

Michael T Holbrook

Stephen W Najmy

Reimer Hasche

Ernest F Stine, Jr

David H West

Katherine A Pividal

Roger L Bowlin

Celio Lume Pereira

Stanford S Kirsch

A saturation process for essentially completely saturating unsaturated halogenated hydrocarbonaceous materials in a feedstock containing such unsaturated materials, employing a first recycle reactor for accomplishing the bulk of the saturation and a second, single pass, plug flow-type polishing reactor in combination.

Process for the complete saturation of halogenated hydrocarbon streams

Process and apparatus for enhancing entrainment and self-stirring adjacent the entry of a reactor vessel of at least partly-reacted materials in an incoming stream of reactants.

Reactor feed pipe design

A process for hydrohalogenating methanol with a hydrogen halide using a catalyst having an initial zone of lower activity and subsequent zones of higher activity so that coke formation and pressure drop are decreased and catalyst life is increased while overall high catalyst activity is maintained. One example of such a process uses a low surface area amorphous alumina in an initial zone and then progressively higher surface area alumina in subsequent zones.

Catalyst for hydrohalogenation of hydrocarbons

Process and catalyst for hydrohalogenation of hydrocarbons

An adiabatic vapor phase chlorination of methylene chloride, methyl chloride or a mixture thereof is improved by the injection of a portion of the methylene chloride, methyl chloride or mixture thereof into the reactor in the liquid state under conditions such that the temperature throughout the reaction zone is maintained at less than about 500.degree. C.

Liquid feed injection in a chloromethanes process

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Baton Rouge, LA, United States of America

Lawrence A Hebert