Patents by Inventor Valentin R. Loureiro

Valentin R. Loureiro 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).

  • Spray drying method
    Patent number: 4473438
    Abstract: Energy-efficient processes for spray drying aqueous liquids in a spray dryer supplied with furnace-heated drying gas which processes comprise withdrawing the spent drying gas from the spray dryer, spraying the spent drying gas with water adiabatically to cool the gas and increase the water content thereof, and recycling a portion of the humidified gas to the furnace, the recycled portion being from about 40 percent to about 70 percent of the total humidified gas, together with apparatus for carrying out the processes.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: September 25, 1984
    Assignee: Witco Chemical Corporation
    Inventor: Valentin R. Loureiro