Rodenkirchen, Germany

Elmar Lohmar


Average Co-Inventor Count = 3.4

ph-index = 4

Forward Citations = 58(Granted Patents)


Location History:

  • Rodenkirchen, DE (1977)
  • Cologne, DE (1987)

Company Filing History:


Years Active: 1977-1987

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6 patents (USPTO):Explore Patents

Title: Elmar Lohmar: Innovator in Chemical Purification Processes

Introduction: Elmar Lohmar is a distinguished inventor based in Rodenkirchen, Germany, known for his contributions to chemical engineering and purification processes. With a total of six patents to his name, Lohmar has made significant advancements in the field, particularly in the purification of hydrogen chloride gas and the continuous production of specialized organic compounds.

Latest Patents: Among Elmar Lohmar’s latest inventions is a patent that addresses a novel process for purifying hydrogen chloride gas. This gas is generated as a by-product during the production of chloroacetic acid through a catalytic chlorination reaction involving acetic acid. Lohmar's method involves passing the crude hydrogen chloride gas through two series-connected zones, employing countercurrent scrubbing techniques—first with concentrated hydrochloric acid, followed by scrubbing with concentrated sulfuric acid. Another noteworthy patent involves the continuous production of 2,5-dioxo-1-oxa-2-phospholanes from beta-halogenoformyl-ethyl phosphinic acid halides. This process showcases his innovative approach to synthesis in the chemical industry.

Career Highlights: Elmar Lohmar’s professional journey is marked by his impactful work at Hoechst Aktiengesellschaft, a renowned company in the specialty chemicals sector. His expertise in chemical processes has facilitated the development of practical applications that enhance production efficiency and safety in laboratory and industrial settings.

Collaborations: Lohmar has collaborated with notable colleagues, including Alexander Ohorodnik and Klaus Gehrmann. These partnerships reflect a synergistic approach to research and development, fostering an environment where ideas and innovations can flourish.

Conclusion: Elmar Lohmar exemplifies dedication and innovation in the field of chemical engineering. His patents not only contribute to scientific knowledge but also provide viable solutions for industrial applications. As he continues to refine processes and explore new avenues for invention, Lohmar remains a significant figure in advancing chemical technologies.

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