Aqua Metals Inc.

Other

Kimberly-clark Worldwide, Inc.

Plurion Limited

Atraverda Limited

Applied Intellectual Capital Limited

Plurion Systems, Inc.

Ebonex Technologies, Inc.

Electrochemical Design Associates, Inc.

Hydro-quebec

Beloit Technologies, Inc.

Geo-kinetics International, Inc.

Applied Intellecutal Capital, Inc.

Plurion Limited Company

Mitsubishi Heavy Industries Limited

Robert Lewis Clarke

Samaresh Mohanta

Stephen Harrison

Brian Dougherty

Stephen R Clarke

J Peter Millington

Brian J Dougherty

Michael David Hurwitz

Michael John King

Michael Alan Hermans

Frank Stephen Hada

Brian C Dougherty

Charles Robert Tomsovic

David V Lange

Roger A Kanitz

Thomas Garrett Neal, Jr

Patrick W Murry

Doug A Rounds

Richard D Hauser

Peter J Millington

James Leo Baggot

Norman L Weinberg

Bernd Busse

John D Genders

Selwyn Mould

Paul Douglas Beuther

Richard H Clarke

Jeffrey H Pulkowski

Steven James Wojcik

Kenneth Allen Pigsley

Robert James Seymour

John Jerald Urlaub

Lowell Everett Thoms

Charles Herbert Goerg

Jay A Shands

Brian Bartell

John Hanson

Brian Wade Isenhart

Robert Scannell

Randall James LeValley

Jeffrey C Irwin

Reinout Lageman

Stan Kimmel

Stuart L Smedley

E Kent Isom

Wieberen Pool

Frank Lev

Dean Butler

Vaughn J Wildfong

Andrew J Feyen

Selwyn John Mould

Leonid Rabinovich

John R Hanson

Kenneth A Pigsley

Randall J Levalley

Steven J Wojcik

Robert J Seymour

Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining. Spent electroprocessing solvent and/or base utilized to treat lead paste from the lead acid battery scrap can be recycled to the recovery process.

Devices and method for smelterless recycling of lead acid batteries

Lead is recycled from lead paste of lead acid batteries in a process that employs alkaline desulfurization followed by formation of plumbite that is then electrolytically converted to pure lead. Remaining insoluble lead dioxide is removed from the lead plumbite solution and reduced to produce lead oxide that can be fed back to the recovery system. Sulfate is recovered as sodium sulfate, while the so produced lead oxide can be added to lead paste for recovery.

Systems and methods for continuous alkaline lead acid battery recycling

Lead is recovered from lead paste of a lead acid battery in a continuous process. The lead paste is contacted with a base to generate a supernatant and a precipitate. The precipitate is separated from the supernatant, and is contacted with an alkane sulfonic acid to generate a mixture of lead ion solution and insoluble lead dioxide. The lead dioxide is reduced with a reducing agent to form lead oxide, and the lead oxide is combined with the lead ion solution to form a combined lead ion solution to so allow a continuous process without lead dioxide accumulation. Lead is recovered from the combined lead ion solution using electrolysis.

Systems and methods for recovery of lead from lead acid batteries

A closed loop electrochemical process of recovery of high-purity lead uses continuous formation of adherent lead on a cathode from an electrolyte that is used to dissolve desulfated lead paste. Preferred cathodes include aluminum containing cathodes that are operated in methane sulfonic acid to produce a micro- or nanoporous mixed matrix metallic composition and lead dioxide formation at the anode is avoided using appropriate anode configurations or operating conditions

Closed loop systems and methods for recycling lead acid batteries

Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining, and spent electroprocessing solvent can be recycled to the recovery process.

Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining and spent electroprocessing solvent can be recycled to the recovery process.

Method for smelterless recycling of lead acid batteries

Compositions, devices, and methods of stabilizing Magneli phase materials are presented where the modified materials have a host phase and a locking phase in which locking compounds prevent rearrangement of a Magneli shear plane to a rutile structure and so prevent or reduce the oxidation of the Magneli phase material.

Devices and methods for advanced phase-locked materials

A system and method for transferring a continuously advancing paper web from a dryer to a reel section is provided. The system includes a first fabric defining a first moving conveyor. The first fabric may be a permeable fabric, which is positioned downstream from the dryer. A second fabric, which may also be permeable and defines a second moving conveyor, is also included. The first moving conveyor overlaps the second moving conveyor for a predetermined distance, and the first and second moving conveyors are configured to receive the paper web between the conveyors. A vacuum device is rotatably disposed against the first moving conveyor, and the dryer and the vacuum device are disposed relative to each other to form an open draw. The vacuum device is configured to produce a vacuum to attract the web to the first fabric for transferring the advancing web into the predetermined distance where the first and second conveyors overlap.

System for transferring an advancing web from a dryer across a draw to a reel section

A power cell (A) has an electrolyte that includes a reodox pair comprising cerium. The electrolyte in preferred cells is an acid electrolyte that comprises a element ion complexed by an organic acid or a chelating agent, and contemplated electrolytes may further include a compound that reduces the hydrogen overpotential. Where the power cell comprises a plurality of cells (B), preferred configurations may include glassy carbon as bipolar electrolytes.

Cerium batteries

A zinc air battery, and preferably a secondary zinc air battery has an acid electrolyte in which the anionic form of an acid forms a complex with a zinc ion, and wherein the acid in the electrolyte reduces dendrite formation.

Zinc air battery with acid electrolyte

A battery (B) comprises an electrolyte in which a first element forms a redox pair with a second element, wherein the battery (B) is charged at a voltage sufficient to plate the first element at the anode (B) and wherein the voltage is insufficient to plate the second element on the anode (B). Preferred batteries include secondary batteries comprising a mixed electrolyte that includes a redox pair formed by a first element and a second element.

Mixed electrolyte battery

Perchlorate is removed and effectively destroyed in devices and methods that employ a eluting solvent in which the anion of an acid solubilizes Ti (III), which may be electrochemically generated or added in situ. Using such solvents, destruction of perchlorate is unexpectedly and several orders of magnitude faster than using solvents without solubilizing acids. In most preferred aspects, the solubilizing acid is methane sulfonic acid and/or sulfamic acid, and Ti (III) is electrochemically generated. Perchlorate destruction will then result in formation of Ti (IV), which may be present in the eluent in a subsequent elution.

Perchlorate destruction

A metal hydroxide complex has a formula Me(OH)4*A*nH2O or MeO2*A*nH2O. Preferred complexes are formed in an alkaline medium, and particularly especially preferred anions include cyanide and cyanide gold complexes. Contemplated complexes are formed on a metal hydroxide (e.g., hydrated zirconium, hafnium, and titanium hydroxide), which may be disposed in a porous container. Consequently, contemplated compounds may be used in methods of reducing the concentration of an anion in an alkaline medium.

Compositions and methods for anion absorbent metal hydroxides

Growing community of inventors

Orinda, CA, United States of America

Robert Lewis Clarke