Patents by Inventor Rainer Aul

Rainer Aul 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).

  • RECOVERY OF LITHIUM FROM AQUEOUS SOLUTIONS
    Publication number: 20110203929
    Abstract: A method for recovering lithium as lithium hydroxide by feeding an aqueous stream containing lithium ions to a bipolar electrodialysis cell, wherein the cell forms a lithium hydroxide solution. An apparatus or system for practicing the method is also provided.
    Type: Application
    Filed: November 12, 2009
    Publication date: August 25, 2011
    Inventors: David Buckley, J. David Genders, Dan Atherton, Rainer Aul
  • USAGE OF BORATE SALTS
    Publication number: 20090309075
    Abstract: The present invention relates to the use of borate salts.
    Type: Application
    Filed: September 6, 2007
    Publication date: December 17, 2009
    Inventors: Jens Röder, Ulrich Wietelmann, Rainer Aul, Steffen Haber
  • Synthesis agent containing methyllithium/lithium bromide, and process for the preparation thereof
    Patent number: 7501075
    Abstract: A synthesis agent containing methyllithium and lithium bromide is described, in which MeLi and LiBr are dissolved in a solvent of the general formula (I) wherein R1 and R2 independently of one another are H, methyl (Me) or ethyl (Et), and R3 and R4 are Me or Et, the molar ratio of LiBr to MeLi being at least 0.7 and not more than 1.5 and the methyllithium concentration being at least 4 wt. %.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: March 10, 2009
    Assignee: Chemetall GmbH
    Inventors: Ute Emmel, Peter Rittmeyer, Ulrich Wietelmann, Rainer Aul
  • Borate Salts, Method for the Production Thereof and Use Thereof
    Publication number: 20090062497
    Abstract: Borate salts, a method for the production thereof and methods of their use.
    Type: Application
    Filed: October 9, 2006
    Publication date: March 5, 2009
    Inventors: Rainer Aul, Ute Emmel, Ulrich Wietelmann, Dieter Hauk, Jens Roder
  • Synthesis agent containing methyllithium/lithium bromide, and process for the preparation thereof
    Publication number: 20060049379
    Abstract: A synthesis agent containing methyllithium and lithium bromide is described, in which MeLi and LiBr are dissolved in a solvent of the general formula (I) wherein R1 and R2 independently of one another are H, methyl (Me) or ethyl (Et), and R3 and R4 are Me or Et, the molar ratio of LiBr to MeLi being at least 0.7 and not more than 1.5 and the methyllithium concentration being at least 4 wt. %.
    Type: Application
    Filed: August 23, 2005
    Publication date: March 9, 2006
    Inventors: Ute Emmel, Peter Rittmeyer, Ulrich Wietelmann, Rainer Aul
  • Ethyllithium in dibutyl ether
    Patent number: 6495064
    Abstract: This patent describes a solution of ethyllithium in dibutyl ether, a non-pyrophoric solution of ethyllithium in dibutyl ether in a concentration of 7 to 8%, a non-pyrophoric solution of ethyllithium in dibutyl ether and in a hydrocarbon in a concentration of 2 to 8%, process for preparing the solutions and the use of the solutions.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: December 17, 2002
    Assignee: Chemetall GmbH
    Inventors: Wilfried Weiss, Rainer Aul, Ute Emmel, Peter Rittmeyer
  • Ethyllithium in dibutyl ether
    Publication number: 20020029830
    Abstract: This patent describes a solution of ethyllithium in dibutyl ether, a non-pyrophoric solution of ethyllithium in dibutyl ether in a concentration of 7 to 8%, a non-pyrophoric solution of ethyllithium in dibutyl ether and in a hydrocarbon in a concentration of 2 to 8%, process for preparing the solutions and the use of the solutions.
    Type: Application
    Filed: May 22, 2001
    Publication date: March 14, 2002
    Inventors: Wilfried Weiss, Rainer Aul, Ute Emmel, Peter Rittmeyer