Urea Casale Sa

Rtr Riotinto Til Holding S.a.

Other

Kinetics Technology International Corporation

Ingeco International S.a.

Mario Dente

Sergio Bozzano

Livio Antonelli

Guiliano Porcari

Ronald G Minet

Lee F Robinson

Lee Fisher Robinson

George O Jackson

Aldo Corti

Carlo Gallazzi

Sunny H K

Eliseo Ranzi

Francesco Salimbeni

Urea is formed by the synthesis of ammonia with carbon dioxide at high pressure and temperature in an internal space of reactors through which flow a liquid phase cocurrently with a gas phase. The reactors are divided into compartments to avoid excessive mixing of the entire liquid phase and to allow the intermittent redistribution of the gas in bubbles of a suitable size for increasing the transfer of heat and mass between the two phases. At each passage from one compartment to the next, the liquid phase and the gas phase are made to flow on separate routes and are distributed in each compartment with a continuous, permanent, and even flow.

Method for increasing the yield and the production potential of urea

Urea is formed by the synthesis of ammonia with carbon dioxide at high pressure and temperature in an internal space of reactors through which flow a liquid phase cocurrently with a gas phase. The reactors are divided into compartments to avoid excessive mixing of the entire liquid phase and to allow the intermittent redistribution of the gas in bubbles of a suitable size for increasing the exchange of heat and matter between the two phases. At each passage from one compartment to the next, the liquid phase and the gas phase are made to flow on separate routes and are distributed in each compartment with a continuous, permanent, and even flow.

Apparatus for increasing the yield and the production potential of urea

In the extraction of bitumen oils from oil sands, the raw material is first slurried with a stream of hot water under conditions promoting the release of the bitumen oils without disintegration of clay in the raw material; the water to raw material is at least 1:1 by weight. The slurry is separated into an oil-rich component, a solids component, and a middlings component containing essentially water and fines with only minor proportions of oil and solids. The middlings component, after removal of the contained fines and the solids is recycled as a part of the slurrying water.

Extraction process

Method and apparatus for converting components of natural gas liquids to aromatic compounds by certain pyrolysis and recycle steps wherein the ultimate yield of light aromatics is maximized while the compression and other costs are minimized.

Pyrolysis of natural gas liquids to aromatic hydrocarbons using a hot

A rotary digester comprises a shell having means at one end for entry of material to be digested and, at the opposite end, a liquids outlet surrounded by a solids outlets. The solids outlet has a screw which assists in preventing egress of unwanted liquid with the solids.

Digester

The process for the substantially total recovery of hydrocarbons from oil sands comprises:

Recovery of hydrocarbons from tar sands

The invention relates to a continuous process for treatment of feed in the form of a heavy hydrocarbon-water dispersion or dispersions. The feed is diluted with a hydrocarbon solvent and contacted in a contactor with a water stream. A product stream containing bitumen oils and a discard stream comprising water and solids are separately removed from the contactor.

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Milan, Italy

Mario Dente