English to Russian Tech/Engineering Chemistry; Chem Sci/Eng

a mixture of binder constituents 2019666 (this is a component (B)) and 2019665 (this is a component (C)) in a mixing ratio of 1.78:0.32 (cf. E 18.3 in table 13; inventive example)
were added to the mixture of quartz sand and particulate amorphous silicon dioxide; this was then followed straight away by mixing in each case at 220 rpm in a bull mixer (RN10/20 type, from Morek Multiserw) for 120 seconds.