Abstract: A method of producing monochloroacetic acid (MCAA) has been disclosed encompassing (a) a stage of the direct chlorination of acetic acid with chlorine and (b) a stage of recovery of the catalyst in the form of acid chlorides from the reaction mixture before (c) a hydrodehalogenation stage characterized by the fact that the chlorination process (a) is conducted at the boiling temperature of the mixture under a pressure of 0-1.
Abstract: A circuit arrangement for compensating for an attenuation occurring in an antenna signal link between a mobile radio terminal and an antenna has at least one antenna signal amplifier in the antenna signal link and a control unit for adjusting a gain factor. The antenna signal conducted through an associated antenna signal amplifier is amplified or attenuated. The circuit arrangement has a detection unit for detecting an antenna signal power (PM, PA) of the antenna signal in the signal path of the antenna signal link. The control unit is configured for changing the gain factor, detecting a change, changing the transmit power (PM) of the mobile radio terminal, and adapting the gain factor to the coupling attenuation of the antenna signal link in dependence on a detected response of the mobile radio terminal.
Abstract: A protective plug characterised because includes a monolithic profile body (1) made of dyed-through polytetrafluoroethylene (PTFE), height H1=10-220 mm, with the lower cylindrical part (2), diameter Ø1=5-100 mm, height H2=1-90 mm, and a part, connected through its upper end, of a spherical layer profile (4), radius R1=5-100 mm, whose upper surface, diameter Ø2=10-110 mm, turns into a shoulder of a low cylinder (5) profile, height H3=0.5-50 mm. The upper round end of the cylindrical part (2) of this plug is connected with the part of the reversed truncated taper (7) profile of analogous diameters Ø1 and Ø2 and the angle of flare a=from 2° to 179.9°, whose upper surface of diameter Ø2 also turns into an analogous low cylinder (5) profile.