| abstract |
PCT No. PCT/GB97/00879 Sec. 371 Date May 3, 1999 Sec. 102(e) Date May 3, 1999 PCT Filed Mar. 27, 1997 PCT Pub. No. WO97/36846 PCT Pub. Date Oct. 9, 1997The invention provides a process for the purification of a butane-1,4-diol feed containing a minor amount of the cyclic acetal, 2-(4'-hydroxybutoxy)-tetrahydrofuran, which comprises hydrogenating the butane-1,4-diol feed in a hydrogenation zone in the presence of a minor amount of water and a hydrogenation catalyst, and recovering from the hydrogenation zone a butane-1,4-diol product that has a reduced 2-(4'-hydroxybutoxy)-tetrahydrofuran content compared with the butane-1,4-diol feed. |