Patents by Inventor Moshe Fruchter

Moshe Fruchter 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 recovery of tungsten in a pure form from tungsten-containing materials
    Patent number: 4629503
    Abstract: The present invention relates to a simple process for the recovery of pure tungsten at a high yield from cemented tungsten carbide or tungsten alloys scrap. According to the invention the process consists of a series of steps characterized by certain critical parameters.
    Type: Grant
    Filed: April 17, 1985
    Date of Patent: December 16, 1986
    Assignee: RAMOT - University Authority for Applied Research and Industrial Development
    Inventors: Moshe Fruchter, Anutza Moscovici
  • Process for the manufacture of pure metallic aluminum from aluminum ores and other aluminum-bearing materials
    Patent number: 4430120
    Abstract: The present invention relates to a process for the manufacture of aluminum metal from aluminum ores, clays ashes, bauxites or wasted effluents containing aluminum. The process involves the following steps: (a) a homogeneous mixing of the aluminum-bearing material with a reducing agent, alkali metal chloride selected from sodium chloride and potassium chloride and mixtures thereof and optionally silica; (b) coking the mixture; (c) heating the mixture at a temperature in the range of 900.degree. C. to 1200.degree. C.; (d) reacting the mixture obtained at a temperature in the range of about 1200.degree. C. to 1800.degree. C., optionally in the presence of oxygen and additional energetic coke, obtaining aluminum monochloride gas and molten alkali metal silicate, and (e) rapid cooling of the aluminum monochloride and carbon monoxide at a temperature in the range of about 650.degree. C to 800.degree. C. with a molten sodium-aluminum chloride producing aluminum trichloride and pure aluminum metal.
    Type: Grant
    Filed: July 24, 1981
    Date of Patent: February 7, 1984
    Inventors: Moshe Fruchter, Anutza Moscovici