This inventor holds 3 USPTO granted patents. Top assignees: Snia Viscosa Societa Nazionale Industria Applicazioni Viscosa, Snia Viscosa. Active years: 1981-1982.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Segni, IT (1981 - 1982)
- Segni-Colleferro, IT (1982)
Company Filing History:
2 out of 57 
1 out of 7 Years Active: 1981-1982
Title: The Innovative Contributions of Domenico Astarita
Introduction
Domenico Astarita is a notable inventor hailing from Segni, Italy. He has made significant contributions to the field of chemical engineering, particularly in the purification processes of caprolactam. With a total of 3 patents to his name, Astarita's work has had a lasting impact on the industry.
Latest Patents
Astarita's latest patents include a process for the purification of raw caprolactam. This innovative method involves extracting alkylated phenols from its sulfuric solution, followed by re-extraction with water, oxidation preferably with KMnO4, evaporation of water, and distillation. Notably, before the oxidation treatment, a 'fast distillation' is conducted in the presence of an alkali. The oxidation occurs at temperatures ranging from 0°C to 80°C and at atmospheric pressure, utilizing 0.005-0.5% by weight of KMnO4. The amount of alkali (NaOH) used in the fast distillation is between 0.05 and 0.5% by weight.
Another significant patent by Astarita is a process for purifying caprolactam through continuous and/or discontinuous vacuum distillation. This process consists of a first stage fast vacuum distillation of the raw caprolactam, possibly in the presence of an alkaline and/or alkaline-earth hydroxide. The second stage involves vacuum rectification distillation of the caprolactam obtained in the first stage, followed by a third stage of fast vacuum distillation of the caprolactam yielded from the second stage, again in the presence of an alkaline and/or alkaline-earth hydroxide. The hydroxide amount in the third and possibly the first stage distillation varies from 0.05 to 5%, preferably from 0.1% to 1%.
Career Highlights
Throughout his career, Astarita has worked with prominent companies in the industry, including Snia Viscosa and Snia Viscosa Societa Nazionale Industria Applicazioni Viscosa. His experience in these organizations has contributed to his expertise in chemical processes and innovations.
Collaborations
Astarita has collaborated with notable colleagues such as Paolo Senni and Mario Catoni. These partnerships have likely enriched his work and led to
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile