Company Filing History:

6 out of 336

Atochem

patents

where one patent can have more than one assignee

Years Active: 1985-2003

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6641791 - Generation of boron-trifluoride and sulphuric acid from boron trifluoride hydrate (2003-11-04),

2. 5536484 - Production of aqueous solutions of fluoboric acid (1996-07-16),

3. 5124009 - Consumption of hypochlorite values contained in chlorate solutions of (1992-06-23),

4. 5009754 - Consumption of hypochlorite values contained in perchlorate solutions of (1991-04-23),

5. 4996039 - Production of hydrogen peroxide (1991-02-26),

6. 4803063 - Process for the cyclic production of hydrogen peroxide (1989-02-07),

7. 4636368 - Stabilized acidic aqueous solutions containing hydrogen peroxide and (1987-01-13),

8. 4545918 - Stabilization of aqueous solutions containing hydrogen peroxide, (1985-10-08),

Title: The Innovative Contributions of Christian Pralus

Introduction

Christian Pralus is a notable inventor based in Saint Cyr au Mont d'Or, France. He has made significant contributions to the field of chemistry, particularly in the production and processing of boron compounds. With a total of 8 patents to his name, Pralus has demonstrated a commitment to advancing chemical processes and applications.

Latest Patents

One of his latest patents involves the generation of boron-trifluoride and sulfuric acid from boron trifluoride hydrate. This invention focuses on preparing commercial-grade boron trifluoride and sulfuric acid from effluents that contain organic impurities. The process includes reacting the effluent with oleum, recovering the gaseous boron trifluoride, and treating the sulfuric acid by-product with hydrogen peroxide and air purging. Another significant patent by Pralus is the production of aqueous solutions of fluoboric acid. This invention addresses the production of colorless aqueous solutions from colored effluents of boron trifluoride hydrate. The process involves treating the colored effluent with an aqueous solution of hydrofluoric acid and then contacting the resulting solution with activated carbon.

Career Highlights

Throughout his career, Christian Pralus has worked with prominent companies in the chemical industry, including Atochem and Elf Atochem S.A. His experience in these organizations has contributed to his expertise and innovative capabilities in chemical processes.

Collaborations

Pralus has collaborated with several professionals in his field, including Jean-Pierre Schirmann and Jean-Paul Chalieux. These collaborations have likely enriched his work and led to further advancements in his inventions.

Conclusion

Christian Pralus is a distinguished inventor whose work in chemical processes has led to valuable patents and innovations. His contributions continue to impact the field of chemistry positively.

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