Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Ligand exchange process for producing alkyl diaryl phosphine rhodium carbonyl hydrides










Image Number 3 for United States Patent #4687866.

Compositions of matter are disclosed which are highly useful in hydroformylation processes. The compositions are non-charged, non-chelated bis- and tris-(alkyl diaryl phosphine) rhodium carbonyl hydrides. The substituents of the alkyl group include heteroorganic radicals containing silane, silicone, ether, ester, keto and hydroxy oxygen, phosphine oxide and phosphorus ester phosphorus, amine, amide, amine oxide and heterocyclic nitrogen groups.These compositions are highly stable and selective catalysts for the hydroformylation of olefins under certain conditions. The disclosed catalyst systems contain a large excess of phosphine ligand and employ alpha-olefin plus synthesis gas reactant mixtures having a high H.sub.2 /CO ratio at relatively low pressures. They produce mostly aldehydes derived from terminal attack on the alpha-olefin reactant. In the case of low olefins, such as butene-1, the products can be advantageously removed in a continuous manner, as distillate components from a ligand reaction mixture kept at an elevated temperature and continuously fed by an appropriate mixture of the reactants.








 
 
  Recently Added Patents
Technology for managing traffic via dual homed connections in communication networks
Exposure method, exposure apparatus, and method for producing device
Light emitting device
Passive translational velocity measurement from optical information
Method and apparatus for cutting high quality internal features and contours
Wide bandwidth hybrid antenna for combination EAS and RFID label or tag
Method and device for managing devices in device management system
  Randomly Featured Patents
Method and device for applying a self-adhesive protective film to car bodies
Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls
Method for processing and analyzing contaminated mixed waste plastics to produce reformulated, blended feed materials having desired physical properties
Zipper for heavy loads
Disposable beverage brewing system
Photosensitive resin and photosensitive resin composition containing the same
Oxidizer-referenced fuel supply system
Bacillus polymyxa 1 capable of producing polysaccharides and polysaccharides produced by this strain
Shared register architecture for a dual-instruction-set CPU to facilitate data exchange between the instruction sets
Polymer particles mixed with fibers and products such as press fabrics made therefrom