Patents by Inventor Merlin D. Coe

Merlin D. Coe 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).

  • Patent number: 4803056
    Abstract: A system for increasing the capacity of a process for producing titanium dioxide by reacting titanium tetrachloride vapors with oxygen wherein the process includes an oxygen preheat assembly for preheating oxygen to a predetermined temperature level and a first titanium tetrachloride preheat assembly for preheating titanium tetrachloride to a first, relatively high, temperature level, a portion of the oxygen and the titanium tetrachloride vapors at the first temperature level being reacted in a first reaction zone to produce a mixture of titanium dioxide reaction product, oxygen and unreacted titanium tetrachloride vapors at the first temperature level.
    Type: Grant
    Filed: July 31, 1985
    Date of Patent: February 7, 1989
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Alan J. Morris, Merlin D. Coe
  • Patent number: 4291002
    Abstract: A process for the production of sodium carbonate wherein sodium bicarbonate is recovered from a brine containing sodium carbonate by carbonation of the brine under controlled conditions. The sodium bicarbonate is crystallized from the carbonated brine in a multi-stage carbonating, cooling and crystallization process after which it is filtered to produce wet cake. The wet cake is subjected to predrying to provide a predried wet cake of a specified free moisture content and mixed with recycle light ash to provide a dryer feed of specified moisture content to alleviate problems of product fouling or plugging of the dryer. The light ash from the dryer then is bleached and subjected to recrystallization, screening, centrifuging and drying to provide a dried sodium carbonate possessing, after evaporation of the water of hydration and free moisture, less than 0.10 percent moisture and chemical and physical properties meeting commercial dense ash specifications.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: September 22, 1981
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Donald S. Arnold, James L. Fairchild, Donald A. Nichols, Merlin D. Coe