Patents by Inventor Heinz Echterhoff

Heinz Echterhoff 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).

  • Process for the production of a product with high carbon content from waste soot
    Patent number: 4209323
    Abstract: Hydrous soot material containing a hydrocarbon is formed into molded articles which are then coked to form a high carbon content product.
    Type: Grant
    Filed: May 31, 1978
    Date of Patent: June 24, 1980
    Assignee: Verkaufsgesellschaft fur Teererzeugnisse
    Inventors: Heinz Echterhoff, Wilfried Gemmeke, Karl H. Koch, Erich Raulf, Joachim Sieckmann
  • Process for preparing composition containing carbon and low sulfur, nitrogen and ash content
    Patent number: 4065296
    Abstract: Process for the preparation of a composition comprised mainly of carbon and containing only a small amount of ash, nitrogen and sulfur, said process comprisingA. drying a hydrous soot with hot flue gas of about 600.degree. C in a direct current-operated dryer to form a dried soot having a water content of about 5 to about 20 percent by weight;B. carbonizing said dried soot in a vertical flue oven by heating at a flue temperature of about 900.degree. to about 1300.degree. C for about 25 to about 40 hours; andC. drying, comminuting and classifying the resulting composition.The composition is useful as a coking agent, filter aid, and in the production of carbon and graphite products.
    Type: Grant
    Filed: December 10, 1976
    Date of Patent: December 27, 1977
    Assignee: Verkaufsgesellschaft fur Teererzeugnisse (VfT)
    Inventors: Wilfried Gemmeke, Heinrich Werner, Heinz Echterhoff, Erich Raulf
  • Process for preparing composition containing carbon and low sulfur, nitrogen and ash content
    Patent number: 4031189
    Abstract: Process for the preparation of a composition comprised mainly of carbon and containing only a small amount of ash, nitrogen and sulfur, said process comprising:A. drying a hydrous soot with hot flue gas of about 600.degree. C in a direct current-operated dryer to form a dried soot having a water content of about 5 to about 20 percent by weight;B. carbonizing said dried soot in a vertical flue oven by heating at a flue temperature of about 900.degree. to about 1300.degree. C for about 25 to about 40 hours; andC. drying, comminuting and classifying the resulting composition.The composition is useful as a coking agent, filter aid, and in the production of carbon and graphite products.
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: June 21, 1977
    Assignee: Verkaufsgesellschaft fur Teererzeugnisse (VfT)
    Inventors: Wilfried Gemmeke, Heinrich Werner, Heinz Echterhoff, Erich Raulf