Ian R Wheeler

Title: Innovations by Ian R. Wheeler: Pioneering Azo Compounds and Pigment Conditioning

Introduction

Ian R. Wheeler, an accomplished inventor based in Houston, GB, has made significant contributions to the field of chemical engineering with his extensive work on azo compounds and pigment processes. Holding a total of eight patents, Wheeler's innovations have been pivotal in advancing applications in pigments and disperse dyes.

Latest Patents

Among Ian R. Wheeler's most notable patents are:

1. **Production of Azo Compounds**: This patent outlines a process for producing azo compounds by contacting a diazotizable amine solution with a coupling component and an organic or inorganic nitrite compound in a water-insoluble liquid organic acid. The addition of aqueous alkali allows for the efficient transfer of the organic acid into the aqueous phase, resulting in high-yield, pure azo compounds suitable for use as pigments and disperse dyes.

2. **Process for Conditioning Phthalocyanine Pigment**: This innovative process involves grinding crude copper phthalocyanine pigment with a crystallizing solvent without the presence of inorganic salt. It relies on sulphonated phthalocyanine amine derivatives to create a pigment composition that is freely dischargeable from the mill in high yield, predominantly in the beta-form.

Career Highlights

Ian R. Wheeler is currently associated with Ciba-Geigy Corporation, where his expertise in chemical processes and innovations is utilized to enhance product quality and efficiency. His contributions have been instrumental in improving pigment production processes, bolstering both quality and yield.

Collaborations

Throughout his career, Wheeler has collaborated with talented individuals such as George H. Robertson and Ian Alexander Macpherson. These partnerships reflect a commitment to fostering innovation through teamwork and sharing of knowledge within the chemical engineering community.

Conclusion

Ian R. Wheeler's dedication to innovation and excellence has led to breakthrough processes in the production of azo compounds and phthalocyanine pigments. His work not only contributes to the scientific community but also to the practical applications in industries reliant on high-quality pigments and dyes. As the landscape of chemical engineering continues to evolve, inventors like Wheeler play a crucial role in driving progress and enabling new possibilities.