Process for operating a compressor heat pump or a compressor refrigeration system in which ammonia is used as the refrigerant

US5413728A · kind A · utility

Assignee

• Rhein Chemie Rheinau GmbH · DE

Inventors

• Klaus Mall · Wesseling, DE
• Siegfried Kussi · Leverkusen, DE

Key dates

• Filing date: Aug 26, 1993
• Grant date: May 9, 1995
• Expiry date: Aug 26, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/50
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for operating a compressor heat pump or a compressor refrigeration system using ammonia as the refrigerant and a refrigerant compressor lubricated with a lubricant from the polyalkylene glycol family, The polyalkylene glycols used as lubricants have a specific composition and an amine is added thereto. Monofunctional or difunctional polyalkylene glycols are used as lubricants.