Patents by Inventor Loredana Caldiero

Loredana Caldiero 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).

  • Coal-water mixtures from low rank coal and process of preparation thereof
    Patent number: 5474582
    Abstract: A process for preparing a coal-water fuel from a low rank coal. The first step of the process provides for an aqueous slurry containing particles of the low rank coal. A quantity of an agglomerating agent in the range of about 10% to 30% weight to dry ash - free low rank coal weight is added to the slurry to produce a mixture. The mixture is then agitated to form agglomerates. Following separation of the agglomerates, the agglomerates are contacted with steam or an inert gas having a temperature in the range of about 250.degree. C. to 420.degree. C. at substantially atmospheric pressure to produce partially deoiled agglomerates containing less than about 7% by weight of residual bridging liquid and having a moisture capacity reduced by a factor of at least about 2.5 at a relative humidity of 96% compared to the moisture capacity of the low rank coal.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: December 12, 1995
    Assignees: Alberta Research Council, Eniricerche, S.p.A.
    Inventors: Boleslaw Ignasiak, Wanda Pawlak, Kazimierz Szymocha, Yevgenia Briker, Loredana Caldiero, Antonio Vettor