Patents by Inventor Roberto Carlos Longoria

Roberto Carlos Longoria has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Removal of salts in the manufacture of phenolic compound
    Patent number: 6965056
    Abstract: There is provided a process for the manufacture of phenolic compounds by separating a neutralized aralkyl hydroperoxide cleavage mass stream containing salts of neutralization into a crude ketone stream and a crude phenolic stream containing the salts of neutralization; separating the crude phenolic stream into a concentrated phenolic-rich stream, enriched in phenolic compounds, and a crude phenolic bottoms stream enriched in tars and alpha methyl styrene dimers, each compared to the crude phenolic stream, said crude phenolic bottoms stream containing salts of neutralization; to the crude phenolic bottoms stream, adding water and a diluent composition, thereby forming a phase separable crude phenolic bottoms stream, said diluent composition comprised of hydrocarbons phase compatible with the crude phenolic bottoms stream and having a combined density lower than the density of the crude phenolic bottoms stream; separating the separable crude phenolic bottoms stream into a hydrocarbon phase and an aqueous phase
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: November 15, 2005
    Assignee: Shell Oil Company
    Inventors: Austin Dale Taggart, II, Edgar Donald Allan, Roberto Carlos Longoria, David Werner Daum, Robert Lawrence Blackbourn
  • Removal of salts in the manufacture of phenolic compound
    Patent number: 6720461
    Abstract: There is provided a process for the manufacture of phenolic compounds by separating a neutralized aralkyl hydroperoxide cleavage mass stream containing salts of neutralization into a crude ketone stream and a crude phenolic stream containing the salts of neutralization; separating the crude phenolic stream into a concentrated phenolic-rich stream, enriched in phenolic compounds, and a crude phenolic bottoms stream enriched in tars and alpha methyl styrene dimers, each compared to the crude phenolic stream, said crude phenolic bottoms stream containing salts of neutralization; to the crude phenolic bottoms stream, adding water and a diluent composition, thereby forming a phase separable crude phenolic bottoms stream, said diluent composition comprised of hydrocarbons phase compatible with the crude phenolic bottoms stream and having a combined density lower than the density of the crude phenolic bottoms stream; separating the separable crude phenolic bottoms stream into a hydrocarbon phase and an aqueous phase
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: April 13, 2004
    Assignee: Shell Oil Company
    Inventors: Austin Dale Taggart, II, Edgar Donald Allan, Roberto Carlos Longoria, David Werner Daum, Robert Lawrence Blackbourn
  • Removal of salts in the manufacture of phenolic compound
    Publication number: 20010000260
    Abstract: There is provided a process for the manufacture of phenolic compounds by separating a neutralized aralkyl hydroperoxide cleavage mass stream containing salts of neutralization into a crude ketone stream and a crude phenolic stream containing the salts of neutralization; separating the crude phenolic stream into a concentrated phenolic-rich stream, enriched in phenolic compounds, and a crude phenolic bottoms stream enriched in tars and alpha methyl styrene dimers, each compared to the crude phenolic stream, said crude phenolic bottoms stream containing salts of neutralization; to the crude phenolic bottoms stream, adding water and a diluent composition, thereby forming a phase separable crude phenolic bottoms stream, said diluent composition comprised of hydrocarbons phase compatible with the crude phenolic bottoms stream and having a combined density lower than the density of the crude phenolic bottoms stream; separating the separable crude phenolic bottoms stream into a hydrocarbon phase and an aqueous phase
    Type: Application
    Filed: December 1, 2000
    Publication date: April 12, 2001
    Inventors: Austin Dale Taggart, Edgar Donald Allan, Roberto Carlos Longoria, David Werner Daum, Robert Lawrence Blackbourn