-
公开(公告)号:NO173937C
公开(公告)日:1994-02-23
申请号:NO873338
申请日:1987-08-10
Applicant: DEGUSSA
Inventor: DESHLER ULRICH , HELLWIG GEORG , MICHEL RUDOLF , KLEINSCHMIT PETER , WOLFF SIEGFRIED
IPC: C07D251/52 , C08K5/34 , C08K5/37 , C08K5/378 , C08L21/00 , C07D413/04 , C07D417/04
Abstract: Mixtures of sulfurous triazine compounds and methods of preparing these compounds with the general formula I in which R1, R2=H,R2=benzyl, R2, R3, R4=C1-C8-alkyl, allyl, C3-C8 cycloalkyl, the latter unsubstituted or substituted with 1-3 methyl groups, 2-hydroxyethyl, 3-hydroxypropyl, 2-hydroxypropyl or R3 and R4 (together): C4-C6-alkylene, -(CH2-CHX)2 Y with X=H, CH3, Y=O,S, Sa: Polysulfide chain with 2-10 S atoms (i.e. 2 I in which R1, R2, R3, R4 have the meanings indicated above is reacted with an ammonium polysulfide or alkali polysulfide and dissolved in a protic polar solvent, especially water, at a temperature of 80 DEG to 140 DEG C.
-
公开(公告)号:ZA921533B
公开(公告)日:1992-11-25
申请号:ZA921533
申请日:1992-02-28
Applicant: DEGUSSA
Inventor: BINDER DIETER , DIETER BINDER , KLEINSCHMIT PETER , PETER KLEINSCHMIT , ZETZMANN KLAUS , KLAUS ZETZMANN , HOFFMEISTER HANS , HANS HOFFMEISTER
-
公开(公告)号:AT78276T
公开(公告)日:1992-08-15
申请号:AT86106593
申请日:1986-05-15
Applicant: DEGUSSA
Inventor: PANSTER PETER , KLEINSCHMIT PETER
-
公开(公告)号:MX163305A
公开(公告)日:1992-04-14
申请号:MX1174788
申请日:1988-06-02
Applicant: DEGUSSA
Inventor: KISS AKOS , KLEINSCHMIT PETER , HANICH JUERGEN , HALBRITTER GUENTER , HORST JENNY
Abstract: Encapsulation pigments comprising chromophoric particles embedded in glaze-stable casings are prepared by means of calcination from the appropriate initial products. High yields and strong color intensities are obtained if the chromophoric substance or its initial compounds are bound in and/or to a zeolite and are calcined in this form with the remaining constituents.
-
公开(公告)号:ZA9100899B
公开(公告)日:1991-11-27
申请号:ZA9100899
申请日:1991-02-06
Applicant: DEGUSSA
Inventor: BRAND REINHOLD , REINHOLD BRAND , FOERSTER MARTIN , MARTIN FOERSTER , KLEINSCHMIT PETER , PETER KLEINSCHMIT , OHMER JOHANNES , JOHANNES OHMER , ENGLER BERND , BERND ENGLER , HARTMANN WERNER , WERNER HARTMANN , KOBERSTEIN EDGAR , EDGAR KOBERSTEIN , SCHWARZ RUDOLF , RUDOLF SCHWARZ
CPC classification number: B01J21/063 , B01J35/1014 , B01J35/1038 , B01J35/1052 , B01J35/1061 , B01J37/0009 , C04B35/46
-
公开(公告)号:BR9004638A
公开(公告)日:1991-09-10
申请号:BR9004638
申请日:1990-09-18
Applicant: DEGUSSA
Inventor: KISS AKOS , SPEER DIETRICH , KLEINSCHMIT PETER , HORST JENNY
-
公开(公告)号:DK628589A
公开(公告)日:1990-06-15
申请号:DK628589
申请日:1989-12-13
Applicant: DEGUSSA
Inventor: BAACKE MICHAEL , BRAND REINHOLD , ENGLER BERND , KISS AKOS , KLEINE-MOELLHOFF PETER , KLEINSCHMIT PETER , KOBERSTEIN EDGAR , SIRAY MUSTAFA
IPC: B01D53/86 , B01D53/56 , B01D53/94 , B01J29/18 , B01J29/20 , B01J29/24 , B01J29/26 , B01D53/36 , B01J29/14
Abstract: A zeolite catalyst and a method for reduction of nitrogen oxides present in waste gas streams is described. The method includes mixing the waste gas containing nitrogen oxides with ammonia. At an elevated temperature, this mixture is passed over a zeolite catalyst. Preferably, the zeolite catalyst is in a monolithic or honeycomb form. The zeolite catalyst includes one or more of the following subgroup metals: copper, iron, molybdeum and cerium. The zeolite catalysts made in accordance with this invention show better conversion of nitrogen oxides and longer life than known catalysts.
-
公开(公告)号:BR8901263A
公开(公告)日:1989-11-07
申请号:BR8901263
申请日:1989-03-20
Applicant: DEGUSSA
Inventor: LOTZE MARION , MEHNER HANS , KLEINSCHMIT PETER
-
公开(公告)号:IN164686B
公开(公告)日:1989-05-13
申请号:IN524CA1985
申请日:1985-07-16
Applicant: DEGUSSA
Inventor: KERNER DIETER , KLEINSCHMIT PETER , PARKHOUSE ALAN , WOLFF SIEGFRIED
Abstract: The invention is directed to the modification of synthetic, silicatic fillers with water insoluble sulfur containing organosilicon compounds. For this purpose, the fillers are converted into an aqueous suspension and treated with the organosilicon compounds, optionally in the presence of an emulsifier. The thus modified filler in vulcanized rubber mixtures results in a clear improvement in the industrial properties of the rubber.
-
公开(公告)号:BR8803516A
公开(公告)日:1989-02-08
申请号:BR8803516
申请日:1988-07-13
Applicant: DEGUSSA
Inventor: WITZEL MICHAEL , KLEINSCHMIT PETER , PFEIFER WOLF-DIETER , VOIGT CARL , ALBERS PETER
Abstract: A specific form of surface coating of Al2O3 catalysts, using additional amounts of aluminium ions and minimum amounts of platinum ions, made it possible to use Al2O3 as a catalyst for long-term operation (150 days and more) in the preparation of hydrogen cyanide from hydrocarbons and ammonia, preferably in the BMA process.
-
-
-
-
-
-
-
-
-