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公开(公告)号：DE59500926D1
公开(公告)日：1997-12-11
申请号：DE59500926
申请日：1995-01-19
Applicant: DEGUSSA
Inventor： SEXTL ELFRIEDE DR , KISS AKOS DR , KINZ HEIKE , SCHAEFER-TREFFENFELDT WILTRUD , YONSEL SEMS DR , STOCKHAMMER STEFAN
IPC: B01D15/04 , C07C51/47 , C07C59/08 , C07C59/265
Abstract: Sepn. of hydroxy mono- and tricarboxylic acids from aq. solns. contg. at least one of these acids is effected by contacting the soln. with an adsorbent material comprising a zeolite with an SiO2/Al2O3 ratio of ≤ 400, and recovering the acid(s) from the adsorbent material by desorption.
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公开(公告)号：ES2058711T3
公开(公告)日：1994-11-01
申请号：ES90117246
申请日：1990-09-07
Applicant: DEGUSSA
Inventor： KISS AKOS DR , SPEER DIETRICH DR , KLEINSCHMIT PETER DR , HORST JENNY
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公开(公告)号：ES2057943T3
公开(公告)日：1994-10-16
申请号：ES92106567
申请日：1992-04-16
Applicant: DEGUSSA
Inventor： SEXTL ELFRIEDE DR , ROLAND ECKEHART DR , KLEINSCHMIT PETER PROF , KISS AKOS DR
Abstract: Process for manufacturing mouldings from dealuminised zeolite Y (SiO2/Al2O3 > 20), in which the micropore system of the zeolite and its characteristic adsorption properties are maintained, and in which a binder is used whose suspension in water does not exceed a pH of 10, in amounts between 2 and 40 per cent, based on the mass of zeolite used. … …
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公开(公告)号：DE59200384D1
公开(公告)日：1994-09-22
申请号：DE59200384
申请日：1992-04-16
Applicant: DEGUSSA
Inventor： SEXTL ELFRIEDE DR , ROLAND ECKEHART DR , KLEINSCHMIT PETER PROF , KISS AKOS DR
Abstract: Process for manufacturing mouldings from dealuminised zeolite Y (SiO2/Al2O3 > 20), in which the micropore system of the zeolite and its characteristic adsorption properties are maintained, and in which a binder is used whose suspension in water does not exceed a pH of 10, in amounts between 2 and 40 per cent, based on the mass of zeolite used. … …
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公开(公告)号：DE4304821A1
公开(公告)日：1994-08-18
申请号：DE4304821
申请日：1993-02-17
Applicant: DEGUSSA
Inventor： WEITKAMP JENS PROF DR , ERNST STEFAN DR , BOCK THOMAS , KROMMINGA THOMAS DR , KISS AKOS DR , KLEINSCHMIT PETER PROF
IPC: B01J20/18 , B01J29/064 , B01J29/70 , B01J29/72 , B01J29/74 , B01J37/30 , C01B39/00 , C01B39/02 , C07C5/03 , C01B33/34 , B01J29/32 , B01J29/34
Abstract: Molecular sieves are modified by ion exchange by introducing metal cations into the molecular sieves by means of solid-phase ion exchange.
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Patent Agency Ranking
公开(公告)号：ES2055185T3
公开(公告)日：1994-08-16
申请号：ES90103318
申请日：1990-02-21
Applicant: DEGUSSA
Inventor： SPEER DIETRICH DR , KISS AKOS DR , KLEINSCHMIT PETER DR , HANICH JURGEN DR
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公开(公告)号：ES2052828T3
公开(公告)日：1994-07-16
申请号：ES89112912
申请日：1989-07-14
Applicant: DEGUSSA
Inventor： SPEER DIETRICH DR , KISS AKOS DR , KLEINSCHMIT PETER DR
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公开(公告)号：DE59003013D1
公开(公告)日：1993-11-11
申请号：DE59003013
申请日：1990-11-02
Applicant: DEGUSSA
Inventor： SPEER DIETRICH DR , KISS AKOS DR , KLEINSCHMIT PETER DR
Abstract: Inclusion pigments (I) are based on Zr silicate (II) as shell substance, in which coloured cpds. (Fe1-xMnx)2O3 of formula (III) are enclosed as discrete phase and are mixed crystals. In (III) x is 0.05-0.60. Pref. (Fe,Mn) zeolites are used as (III). Esp. x is 0.05-0.20 or 0.30-0.60. (I) are prepd. by calcining a mixt. of ZrO2 and SiO2 or their precursors in 1:1 molar ratio for 0.5-8 hrs. at 750-1200 deg.C in the presence of mineralisers and Fe and Mn cpds. or cpds. contg. Fe and Mn with an Fe/Mn atomic ratio of 90:10 to 20:80. Pref. calcination temp. is 850-1000 deg.C for an Fe/Mn ratio of 50:50-80:20 and 1050-1200 deg.C for an Fe/Mn ratio of 50:50-30:70. Unincluded Mn and Fe cpds. are removed by treating the calcined prod. with acid.
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公开(公告)号：AT90713T
公开(公告)日：1993-07-15
申请号：AT90117246
申请日：1990-09-07
Applicant: DEGUSSA
Inventor： KISS AKOS DR , SPEER DIETRICH DR , KLEINSCHMIT PETER DR , HORST JENNY
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公开(公告)号：DE58902872D1
公开(公告)日：1993-01-14
申请号：DE58902872
申请日：1989-07-14
Applicant: DEGUSSA
Inventor： KLEINSCHMIT PETER DR , KISS AKOS DR , SPEER DIETRICH DR
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