VERFAHREN ZUR ALTPAPIERAUFBEREITUNG IN GEGENWART VON HYDROXYSULFONATSALZEN
摘要
<p>PCT No. PCT/EP90/01765 Sec. 371 Date Apr. 24, 1992 Sec. 102(e) Date Apr. 24, 1992 PCT Filed Oct. 18, 1990 PCT Pub. No. WO91/06701 PCT Pub. Date May 16, 1991.The invention relates to a process for regenerating wastepaper and to the use of certain hydroxysulfonate salts for removing printing ink from printed wastepaper and/or paper circuit waters.</p>
