SNAM-Progetti

Formex pro-cess, Snam-progetti /V-formyl-morph o-line (FM) water is added to the FM to increase its se-lectivity and also to avoid high reboiler temperatures during solvent recovery by distillation 40 perforated-tray ex-tractor, FM density at 1.15 aids phase separation low corrosion allows use of carbon steel equipment... 

The first, consisting of a uranium salt, trialkylaluminum, and a Lewis acid, had been developed at Goodyear ( 1 ). The other system, described by Snam Progetti (2), permits the polymerization of butadiene to give polymers with a cis content of up to... 

Formex A process for extracting aromatic hydrocarbons from petroleum reformate, using N-formyl morpholine at 40°C. Developed by SNAM-Progetti. 

Several other companies have developed patented processes to D-hydroxyphenylglycine. These include Bayer, DSM, SNAM-Progetti and Ajinomoto. DSM has got access to several technologies and is now carrying out the hydantoinase process at DSM Deretil in Spain. 

S g CD SNAM Progetti Streptomyces Sp. Cells are entrapped in cellulose acetate fibers 32... 

The only reported commercial use of the yeast enzyme is the production of lactose-hydrolyzed milk in Italy using the Snam Progetti process for entrapment of enzyme in cellulose triacetate fibers (4) ... 

Low-pressure processes Kellogg, ICX, Montedison (LEA process SNAM Progetti. eta... 

Recovery of ammonia by water scrubbing offers the advantage of achieving a very low residual ammonia content, but the drawback is that the whole recycle gas has to be dried afterwards and in addition distillation of aqueous ammonia is necessary to yield liquid ammonia. Nevertheless the scrubbing route was again proposed for a synthesis loop to be operated under extremely low pressure (around 40 bar) [938]. Snam Progetti [280], [939], [940] has proposed removing the ammonia from the loop gas at ambient temperature down to 0.5 mol% by absorption in dilute aqueous ammonia. 

Instead of stripping with carbon dioxide, ammonia can be used (Snam Progetti process). The stripping processes are energetically somewhat more favorable than the recycling processes with high pressure decomposers. 

The earliest processes employed air as the oxidant (Distillers IG Farben, Scientific Design, Union Carbide). Modem plants are nearly all supplied with oxygen (Chenuscbe Werke-Hiih, Japan Catalytic, Scientific Design second version. Shell, SNAM Progetti Societa Nazionale Metanodotti). The main concern of all these installations is the effective removal of the heat produced during the reaction. This is achieved by operation with a low ethylene conversion rate, cold product recycle, and external cooling of the catalyst bed. 

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