Method for the production of a granulate for hemodialysis

US6210803A · kind A · utility

Assignee

• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Wendelin Backhaus · Kronberg, DE
• Peter Hilgers · Schonungen, DE
• Joachim Manke · Nordhausen, DE
• Hamadi El-Ayari · Frankfurt, DE
• Werner Liedy · Hochdorf-Assenheim, DE

Key dates

• Filing date: Jun 17, 1999
• Grant date: Apr 3, 2001
• Expiry date: Jun 17, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to a method for the manufacture of an electrolyte and acetic acid granulate for making a hemodialysis solution, the granulate comprising the electrolytes potassium chloride, calcium chloride and magnesium chloride, and the method comprising preparing the granulate and adding a desired quantity of acetic acid. The granulate, which is easy to process and has free flow capability, is made by crushing the electrolyte salts to a grain size of less than 0.5 mm and subsequently granulating the electrolyte salts in a dry gas atmosphere to a granulate having a grain size of 1 to 10 mm and a pore volume of more than 25 percent by volume. Subsequently, the acetic acid is added to the granulate, preferably by spraying.