in water heating suspension of 240 g pure CaCO3 in 1 l H2O with CO for few hours in Fe shaker autoclave at 20-45 at and 160°C, until there is no redn. of pressure; after cooling, diln. with hot H2O, filtration; pptn. of Ca(OH)2 with CO2; filtration;; vaporization of filtrate; pptn.;;
chlorotris(sodium 3-sulfonatophenyldiphenylphosphine)rhodium(I) in water byproducts: H2O; fine powder of CaCO3 stirred in H2O in presence of Rh-complex under atm.of CO2 and H2; temp. range 20-70°C, total pressure 10-100 bar, p (CO2):p(H2) ratio 1:4; react. mixt. stirred vigorously; reactor cooled in ice water; detd. by chromy.;
参考文献
Journal of Molecular Catalysis A: Chemical, , vol. 224, # 1-2 p. 87 - 91
