- document
-
De Graauw, J. (author), Steenbakker, M.J. (author), De Rijke, A. (author), Olujic, Z. (author), Jansens, P.J. (author)The invention is directed to a heat integrated distillation column comprising a cylindrical shell having an upper and a lower end and at least one first inner volume and at least one second inner volume in the shell, said volumes reaching from said upper end to said lower end, and being in heat exchanging contact with each other through a wall...patent 2003
- document
-
Witkamp, G.J. (author), Vrijenhoef, J.P. (author), De Graauw, J. (author), Van der Ham, F. (author)The invention is directed to a process for recovering a crystalline material from an aqueous solution, which solution also contains organic contaminants, in which process the material is crystallised from the aqueous solution by freeze crystallising at a eutectic freezing point of the solution.patent 2001
- document
-
Oosterhof, H. (author), Van Rosmalen, G.M. (author), Witkamp, G.J. (author), De Graauw, J. (author)The invention is directed to a process for the production of sodium carbonate-anhydrate having a bulk density of at least 800 kg/m<3>, said process comprising: providing a suspension of solid sodium carbonate and/or solid sodium bicarbonate and/or solid double salts at least comprising one of sodium carbonate and sodium bicarbonate, in a mixture...patent 2000