Joseph Pugach

Title: Innovations by Joseph Pugach

Introduction

Joseph Pugach is an accomplished inventor based in Ho-Ho-Kus, New Jersey. He holds a total of seven patents, showcasing his significant contributions to the field of chemical engineering and materials recovery. His work primarily focuses on the recovery of noble metals from industrial processes, particularly those involving carbonylation reactions.

Latest Patents

One of his latest patents involves the recovery of noble metal values from carbonylation residues. Heavy residues produced by noble metal-catalyzed carbonylation reactions contain Group VIII noble metals, particularly rhodium. In this patent, Pugach describes a method where these residues are treated with specific reagents to precipitate solids that contain nearly all of the noble metal. The solids can either be further treated to concentrate the noble metals or returned directly for reuse in the carbonylation reaction. Suitable reagents include aliphatic alcohols, carboxylic acids, and carboxylic acid esters, with a preference for branched-chain alcohols, especially tertiary alcohols. Acetic acid is particularly favored among the acids, while n-butyl acetate and ethylidene diacetate are preferred esters. Additionally, subsequent treatments with other solvents, such as alkanes, cycloalkanes, ethers, and aromatic compounds, may be employed to further concentrate the rhodium content of the precipitated solids.

Another notable patent by Pugach also focuses on the recovery of noble metal values from carbonylation residues. In this method, heavy residues containing Group VIII noble metals are treated with a mixture of immiscible liquids to precipitate solids containing the noble metal. The solids can be reused directly in the carbonylation reaction. This innovative approach utilizes a group of liquids consisting of water with immiscible alcohols or hydrocarbons, or mixtures thereof, and a second group that includes acetic anhydride with immiscible hydrocarbons.

Career Highlights

Throughout his career, Joseph Pugach has made significant strides in the field of materials recovery. His innovative methods for recovering noble metals have the potential to enhance efficiency and sustainability in industrial processes.

Collaborations

Joseph Pugach has worked with notable companies such as Halcon Research and Development Corporation and The Halcon SD Group, Inc. These collaborations have allowed him to further develop and implement his innovative ideas in practical applications