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公开(公告)号：FI954109A0
公开(公告)日：1995-09-01
申请号：FI954109
申请日：1995-09-01
Applicant: DEGUSSA
Inventor： KLASEN CLAAS-JUERGEN , BERTSCH-FRANK BIRGIT , LIESER THOMAS , SCHUBERT PETER , MUELLER KLAUS
Abstract: PCT No. PCT/EP94/00422 Sec. 371 Date Sep. 28, 1995 Sec. 102(e) Date Sep. 28, 1995 PCT Filed Feb. 15, 1994 PCT Pub. No. WO94/20413 PCT Pub. Date Sep. 15, 1994The invention relates to a method for increasing the storage stability of sodium percarbonate (2 Na2CO3.3 H2O2) by coating with a sodium perborate. According to the present invention wet sodium percarbonate salt, obtained by reacting sodium carbonate with hydrogen peroxide in aqueous phase and separating the salt from the aqueous phase, is treated with a solution or suspension containing sodium perborate in a solid-liquid separator by a kind of displacement wash. In contrast to previously known methods, according to the present invention a greater storage stability is attained with smaller quantities of perborate coating.
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公开(公告)号：AT164817T
公开(公告)日：1998-04-15
申请号：AT94907569
申请日：1994-02-15
Applicant: DEGUSSA
Inventor： KLASEN CLAAS-JUERGEN , BERTSCH-FRANK BIRGIT , LIESER THOMAS , SCHUBERT PETER , MUELLER KLAUS
Abstract: PCT No. PCT/EP94/00422 Sec. 371 Date Sep. 28, 1995 Sec. 102(e) Date Sep. 28, 1995 PCT Filed Feb. 15, 1994 PCT Pub. No. WO94/20413 PCT Pub. Date Sep. 15, 1994The invention relates to a method for increasing the storage stability of sodium percarbonate (2 Na2CO3.3 H2O2) by coating with a sodium perborate. According to the present invention wet sodium percarbonate salt, obtained by reacting sodium carbonate with hydrogen peroxide in aqueous phase and separating the salt from the aqueous phase, is treated with a solution or suspension containing sodium perborate in a solid-liquid separator by a kind of displacement wash. In contrast to previously known methods, according to the present invention a greater storage stability is attained with smaller quantities of perborate coating.
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公开(公告)号：FI97334B
公开(公告)日：1996-08-30
申请号：FI900516
申请日：1990-02-01
Applicant: DEGUSSA
Inventor： KOBERSTEIN EDGAR , ENGLER BERND , DOMESLE RAINER , SCHUBERT PETER
Abstract: The invention relates to a support material for catalysts containing a platinum group metal for motor vehicle exhaust gas purification, the catalysts having a reduced tendency to emit H2S. The support material consists of a heat-treated, spray-dried combination of aluminium oxide and cerium oxide.
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公开(公告)号：FI954109A
公开(公告)日：1995-09-01
申请号：FI954109
申请日：1995-09-01
Applicant: DEGUSSA
Inventor： KLASEN CLAAS-JUERGEN , BERTSCH-FRANK BIRGIT , LIESER THOMAS , SCHUBERT PETER , MUELLER KLAUS
Abstract: PCT No. PCT/EP94/00422 Sec. 371 Date Sep. 28, 1995 Sec. 102(e) Date Sep. 28, 1995 PCT Filed Feb. 15, 1994 PCT Pub. No. WO94/20413 PCT Pub. Date Sep. 15, 1994The invention relates to a method for increasing the storage stability of sodium percarbonate (2 Na2CO3.3 H2O2) by coating with a sodium perborate. According to the present invention wet sodium percarbonate salt, obtained by reacting sodium carbonate with hydrogen peroxide in aqueous phase and separating the salt from the aqueous phase, is treated with a solution or suspension containing sodium perborate in a solid-liquid separator by a kind of displacement wash. In contrast to previously known methods, according to the present invention a greater storage stability is attained with smaller quantities of perborate coating.
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公开(公告)号：AU6109794A
公开(公告)日：1994-09-26
申请号：AU6109794
申请日：1994-02-15
Applicant: DEGUSSA
Inventor： KLASEN CLAAS , BERTSCH-FRANK BIRGIT , LIESER THOMAS , SCHUBERT PETER , MULLER KLAUS
Abstract: PCT No. PCT/EP94/00422 Sec. 371 Date Sep. 28, 1995 Sec. 102(e) Date Sep. 28, 1995 PCT Filed Feb. 15, 1994 PCT Pub. No. WO94/20413 PCT Pub. Date Sep. 15, 1994The invention relates to a method for increasing the storage stability of sodium percarbonate (2 Na2CO3.3 H2O2) by coating with a sodium perborate. According to the present invention wet sodium percarbonate salt, obtained by reacting sodium carbonate with hydrogen peroxide in aqueous phase and separating the salt from the aqueous phase, is treated with a solution or suspension containing sodium perborate in a solid-liquid separator by a kind of displacement wash. In contrast to previously known methods, according to the present invention a greater storage stability is attained with smaller quantities of perborate coating.
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Patent Agency Ranking
公开(公告)号：ZA904363B
公开(公告)日：1991-03-27
申请号：ZA904363
申请日：1990-06-06
Applicant: DEGUSSA
Inventor： ENGLER BERND , BERND ENGLER , SCHUBERT PETER , PETER SCHUBERT , WANNEMACHER GERHARD , GERHARD WANNEMACHER
Abstract: A process for regenerating soot filters of diesel engines is presented. The hot engine exhaust gas is passed over an oxidation catalyst upstream of the soot filter and is then treated with a vaporised readily ignitable fuel. The amount of fuel is adjusted to reach a final adiabatic temperature of 300 - 1000 DEG C.
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公开(公告)号：FI900516A0
公开(公告)日：1990-02-01
申请号：FI900516
申请日：1990-02-01
Applicant: DEGUSSA
Inventor： KOBERSTEIN EDGAR , ENGLER BERND , DOMESLE RAINER , SCHUBERT PETER
Abstract: The invention relates to a support material for catalysts containing a platinum group metal for motor vehicle exhaust gas purification, the catalysts having a reduced tendency to emit H2S. The support material consists of a heat-treated, spray-dried combination of aluminium oxide and cerium oxide.
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公开(公告)号：CA2036006C
公开(公告)日：1997-05-20
申请号：CA2036006
申请日：1991-02-08
Applicant: DEGUSSA
Inventor： DOMESLE RAINER , ENGLER BERND , SCHMIDT FELIX , SCHUBERT PETER , KOBERSTEIN EDGAR
IPC: B01J23/40 , B01D53/86 , B01D53/94 , B01J23/56 , B01J23/58 , B01J23/63 , B01J23/89 , B01J37/02 , F01N3/18 , F02B1/04 , B01J23/10
Abstract: A catalyst for the purification of the exhaust gases of internal combustion engines with improved cold start performance and improved lean long-term endurance combined with reduced specific noble metal charge is proposed. It uses active aluminium oxide with conventional promoters as carrier and platinum and/or palladium and rhodium in the usual quantities as noble metals, In addition it contains one or more base metals in quantities of up to 5 times the total mass of noble metal, which base metals are brought into immediate vicinity of rhodium by a special manufacturing technique.
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公开(公告)号：CA2009029C
公开(公告)日：1996-04-16
申请号：CA2009029
申请日：1990-01-31
Applicant: DEGUSSA
Inventor： KOBERSTEIN EDGAR , ENGLER BERND , DOMESLE RAINER , SCHUBERT PETER
IPC: F01N3/28 , B01D53/94 , B01J23/10 , B01J23/54 , B01J23/56 , B01J23/63 , B01J23/89 , B01J32/00 , B01J23/40
Abstract: Support material for three-way catalysts containing platinum group metal and having reduced tendency for H2S emission and in particular a support material for catalysts containing platinum group metal for purification of car exhaust gas, the catalysts having reduced tendency for H2S emission. The support material consists of an annealed, spray-dried cerium oxide or a combination thereof with aluminum oxide.
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公开(公告)号：CA1331375C
公开(公告)日：1994-08-09
申请号：CA589877
申请日：1989-02-02
Applicant: DEGUSSA
Inventor： DOMESLE RAINER , ENGLER BERND , KOBERSTEIN EDGAR , SCHUBERT PETER
Abstract: The present invention relates to a catalyst of active aluminium oxides with admixture of CeO2, ZrO2 and Fe2O3 and/or NiO as support and, coated thereon, an active phase of platinum, palladium and/or rhodium and a base metal. Said catalyst can be obtained by impregnating the support containing the admixtures with solutions of salts of the metals for the active phase, the base metal of the active phase being cerium, by drying and heating to temperatures of 250 to 650.degree.C. The catalyst can be used for the oxidation and/or reduction of exhaust gases of internal combustion engines.
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