Measurement of the water-nitrobenzene interface.

BorsodChem MCHZ uses KROHNE level transmitter
LT 100

The customer uses KROHNE level transmitter LT 100 with a specially balanced float. This application is the evidence that it is possible to solve even such a difficult problem simply and with minimum costs. The interface of two immiscible liquids can be measured with LT 100 in case the difference of their densities is greater than 100 g/l. The instrument was purchased after 3 months of field tests.

The BorsodChem MCHZ, Ltd. (Ostrava, Czech Republic), a member of the BorsodChem Group, is the worlds´ greatest producer of cyclohexylamine and an important European producer of amines, particularly aniline. Top products include also nitric acid, oxalic acid, formaldehyde, nitrobenzene, urea-formaldehyde resins (commercial name „Dukol“) and technical gases.

First KROHNE variable area flowmeters were installed in this plant more than 20 years ago and some of them have still been in use. At present the BorsodChem MCHZ company is one of KROHNE CZ key customers. Several dozens of various KROHNE instruments are used here to monitor and control production processes. All-metal variable area flowmeters measure the flowrate of amines, condensate, benzene, aniline, nitrogene, hydrogene, etc. Proven KROHNE magnetic-inductive flowmeters ALTOFLUX IFM 4080 are installed here to measure various corrosive liquids, such as nitric and sulphuric acids.

Most important KROHNE CZ orders in BorsodChem MCHZ include level measurement in the combustibles storage (16 pcs of KROHNE level radar BM 70 and BM 700), in the aniline production line (9 pcs of BM 70A) and in the caustic agents storage (10 pcs of KROHNE 2 wire level radar BM 702). The customer also purchased KROHNE TDR level meters BM 102 (measurement of amines) and BM 100A (measurement of granulated urea). Proven and reliable KROHNE level indicators BM 26 are used to measure level of condensate and demineralized water.

AP00135
Key Words:
LT 100, lt100, interface measurement, level transmitter, nitrobenzene, water, chemical industry