Patent · US Active

Rotary evaporator

US8894822B2 · kind B2 · utility

2Cited by

12References

16Claims

0Family size

Assignee

IKA—WERKE GMBH & CO. KG · DE

Inventors

Hubert Pinhack · Bad Krozingen, DE
Martin Spath · Usingen, DE

Key dates

Filing date	Aug 29, 2009
Grant date	Nov 25, 2014
Priority date	—
Expiry date	Feb 18, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D5/006
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A rotary evaporator (1) having a cooler (6), wherein temperature sensors (15, 17) are disposed in the inlet (14) and outlet (16) of the coolant into or out of the cooler (6), and a volume flow rate of the coolant through the cooler (6) is determined. The initiation or termination of condensation in the cooler (6) is derived from an increase or decrease in the difference of the temperatures (X) at the temperature sensors (15, 17). The volume of the condensed distillate (10) is determined from the difference in temperatures (X), and a distillation volume control is performed. By regulating the heating power of the heater (11) and/or the pressure in the system, the loading of the cooler (6) is controlled as a function of the difference in temperatures (X).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.