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公开(公告)号：DE19903649A1
公开(公告)日：2000-08-10
申请号：DE19903649
申请日：1999-01-29
Applicant: DEGUSSA
Inventor： FUCHS RAINER , HUSS MICHAEL , KUHN FRANK
Abstract: The invention relates to a method of obtaining potable water from water of inferior quality. The water is treated with a solution that contains hydrogen peroxide and at least one peroxycarboxylic acid. According to the invention, this step is followed by an additional treatment according to which the water obtained in the first step is contacted with a water-insoluble decomposition catalyst for active oxygen compounds. Especially preferred decomposition catalysts are Cu-doted activated carbons. The second step is preferably carried out in the presence of elemental copper in order to prevent microbial re-contamination.
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公开(公告)号：TR199902960A2
公开(公告)日：2000-07-21
申请号：TR9902960
申请日：1999-12-03
Applicant: DEGUSSA
Inventor： FUCHS DR RAINER , HUSS MICHAEL
Abstract: A 1-6 carbon (C) peroxycarboxylic acid is used as disinfectant in a process for treating swimming pool water by filtration through a filter bed and chlorination, in which the filter is back-flushed periodically with water, to which disinfectant is added before or in the filter, and the spent flushing water is discharged.
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公开(公告)号：DE19812590A1
公开(公告)日：2000-01-20
申请号：DE19812590
申请日：1998-03-23
Applicant: DEGUSSA
Inventor： FUCHS RAINER , HUSS MICHAEL
Abstract: Control of human-, animal- and plant-pathogenic small lifeforms (i.e. insects and worms) comprises introduction of a liquid control agent comprising aqueous 1-6C percarboxylic acids, to surfaces and/or water.
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公开(公告)号：BR9900606A
公开(公告)日：2000-01-18
申请号：BR9900606
申请日：1999-03-23
Applicant: DEGUSSA
Inventor： FUCHS RAINER , HUSS MICHAEL
Abstract: Control of human-, animal- and plant-pathogenic small lifeforms (i.e. insects and worms) comprises introduction of a liquid control agent comprising aqueous 1-6C percarboxylic acids, to surfaces and/or water.
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公开(公告)号：ES2138371T3
公开(公告)日：2000-01-01
申请号：ES96928420
申请日：1996-08-07
Applicant: DEGUSSA
Inventor： HUSS MICHAEL , SCHNEIDER ROLAND , DEL GROSSO BIRGIT
Abstract: PCT No. PCT/EP96/03485 Sec. 371 Date May 29, 1998 Sec. 102(e) Date May 29, 1998 PCT Filed Aug. 7, 1996 PCT Pub. No. WO97/08100 PCT Pub. Date Mar. 6, 1997Owing to the concomitant storage, transport, material and handling problems and the unsatisfactory retarding of reinfection, the use of commercially available peracetic acid solutions with a high peracetic acid (PES) and acetic acid content for disinfecting large quantities of aqueous solutions, e.g. purification plant outlets, has been closely limited. It is possible to disinfect even large quantities of aqueous solutions economically and at the same time retard reinfection by using a peracetic acid solution containing 1.5 to 2.5 wt. % peracetic acid and 40 to 60 wt. % hydrogen peroxide and under 2 wt. % acetic acid as a disinfectant. The use of a peracetic acid solution with less than 1 wt. % acetic acid is preferred.
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Patent Agency Ranking
公开(公告)号：FI103798B1
公开(公告)日：1999-09-30
申请号：FI902525
申请日：1990-05-22
Applicant: DEGUSSA
Inventor： FISCHER WOLFGANG , BISCHOFF DIETMAR , HUSS MICHAEL , STOBER REINHARD , ROESSLER GERT
Abstract: Process for the preparation of a cationic starch having a controlled viscosity, in which, in one process step, the starch is homogenised in the presence of 10 to 35 % by weight of water and preferably 0.01 to 2.00 % by weight of a finely divided silica and/or silicate (based in each case on the total amount of the mixture) with an alkaline oxide, hydroxide, silicate or aluminate or a mixture thereof, an alkylene epoxide and a peroxy compound or a mixture of at least two peroxy compounds, and is then boiled down at the desired time.
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公开(公告)号：ZA9902230B
公开(公告)日：1999-09-29
申请号：ZA9902230
申请日：1999-03-19
Applicant: DEGUSSA
Inventor： HUSS MICHAEL , SCHNEIDER ROLAND , PREUSS ANDREA , FUCHS RAINER
IPC: C07C407/00 , A01N59/00 , C02F1/50 , C02F1/72 , C07C409/24 , C07C409/26 , A01N
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公开(公告)号：CA2266523A1
公开(公告)日：1999-09-23
申请号：CA2266523
申请日：1999-03-22
Applicant: DEGUSSA
Inventor： SCHNEIDER ROLAND , HUSS MICHAEL , FUCHS RAINER , PREUSS ANDREA
IPC: C07C407/00 , A01N59/00 , C02F1/50 , C02F1/72 , C07C409/24 , C07C409/26 , A01N37/02 , A01N37/16
Abstract: Disinfecting agents with a high microbiocidal effect contain up to 5 wt.-% performic acid, hydrogen peroxide and peracetic acid. They can be obtained by addition of a source of formic acid, such as formic acid, a water-soluble salt of the same or a lower formic ester, to an aqueous phase containing 5 to 50 wt.-% hydrogen peroxide and 1 to 15 wt.-% peracetic acid and, in the case of the addition of a salt, additionally a mineral acid. Preferred agents result from the addition of 0.1 to 1 mole sodium formate or formic acid, per kg of the agent to be produced, to an equilibrium peracetic acid containing mineral acid with 0.5 to 6 wt.-% peracetic acid.
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公开(公告)号：AT99701T
公开(公告)日：1994-01-15
申请号：AT88110448
申请日：1988-06-30
Applicant: DEGUSSA
Inventor： STOBER REINHARD DR , FISCHER WOLFGANG , HUSS MICHAEL , PIETER REIMUND DR
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公开(公告)号：FI902525A0
公开(公告)日：1990-05-22
申请号：FI902525
申请日：1990-05-22
Applicant: DEGUSSA
Inventor： FISCHER WOLFGANG , BISCHOFF DIETMAR , HUSS MICHAEL , STOBER REINHARD , ROESSLER GERT
Abstract: Process for the preparation of a cationic starch having a controlled viscosity, in which, in one process step, the starch is homogenised in the presence of 10 to 35 % by weight of water and preferably 0.01 to 2.00 % by weight of a finely divided silica and/or silicate (based in each case on the total amount of the mixture) with an alkaline oxide, hydroxide, silicate or aluminate or a mixture thereof, an alkylene epoxide and a peroxy compound or a mixture of at least two peroxy compounds, and is then boiled down at the desired time.
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