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公开(公告)号：DD262228A5
公开(公告)日：1988-11-23
申请号：DD30658787
申请日：1987-09-02
Applicant: DEGUSSA
Inventor： DESCHLER ULRICH , HELLWIG GEORG , MICHEL RUDOLF , KLEINSCHMIDT PETER
IPC: C07D251/52 , C08K5/34 , C08K5/37 , C08K5/378 , C08L21/00
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.
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公开(公告)号：DD254203A5
公开(公告)日：1988-02-17
申请号：DD27902585
申请日：1985-07-26
Applicant: DEGUSSA
Inventor： DESCHLER ULRICH , PANSTER PETER , KLEINSCHMIDT PETER , WOLFF SIEGFRIED , TAN EW-HONG
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公开(公告)号：DD149654A5
公开(公告)日：1981-07-22
申请号：DD21994780
申请日：1980-03-26
Applicant: DEGUSSA
Inventor： VOIGT CARL , KLEINSCHMIDT PETER , WALTER EBERHARD
IPC: C01C3/02
Abstract: The known hydrocyanic acid-methane-ammonia (BMA) process for the production of hydrogen cyanide can now be carried out with liquified gases namely through the presence of additional hydrogen at the beginning of the reaction. The atomic ratio of carbon to nitrogen and hydrogen is from 1:1:7.1 to 1:1.33:13. As additional hydrogen there is the portion of hydrogen present coming out of the reaction "hydrocarbon+NH3". Otherwise the reaction conditions are the same as in the known BMA process.
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公开(公告)号：DD292470A5
公开(公告)日：1991-08-01
申请号：DD33835690
申请日：1990-03-02
Applicant: DEGUSSA
Inventor： SPEER DIETRICH , KISS AKOS , KLEINSCHMIDT PETER
Abstract: Grey-black inclusion pigments are obtained by enclosing iron titanates of the formula FeTiO3 in zirconium silicate crystals. They are prepared by igniting a mixture of zirconium oxide having a particle size distribution of 6 to 10 mu m and a specific surface area of 2 to 5.2 m /g, silica and iron oxides and titanium oxides or iron compounds and titanium compounds forming oxides in the presence of mineralisers under oxidising conditions at 800 to 1300 DEG C.
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公开(公告)号：DD239600A5
公开(公告)日：1986-10-01
申请号：DD28162285
申请日：1985-10-10
Applicant: DEGUSSA
Inventor： KERNER DIETER , KLEINSCHMIDT 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.
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Patent Agency Ranking
公开(公告)号：DD147945A5
公开(公告)日：1981-04-29
申请号：DD21746279
申请日：1979-12-07
Applicant: DEGUSSA
Inventor： SCHWARZ RUDOLF , KLEINSCHMIDT PETER , LIEDTKE CHRISTA , WOLFF SIEGFRIED
IPC: C08L7/00 , C07F7/08 , C07F7/12 , C07F7/18 , C08G75/02 , C08G75/14 , C08K5/5425 , C08K5/548 , C08L21/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L101/00
Abstract: Novel bis-(silylethyl)-oligosulphides are obtained by reacting a vinyl silane of the formula (CH2=CH)m-SiRn1R4-(m+n) in which R represents chlorine, bromine, iodine, C1-C3-alkoxy, 2-methoxyethoxy, 2-ethoxyethoxy or hydroxy, R1 represents C1-C3-alkyl, phenyl or C5-C7-cycloalkyl, n is 0, 1 or 2, m is 1 or 2 and m+n is 1, 2 or 3 with sulphur as well as in a given case hydrogen sulphide in molar ratios of vinyl silane to sulphur of from 1:2.5 to 1:10 and vinyl silane to hydrogen sulphide of from 1:0 to 1:5 at temperatures between about 100 DEG and 200 DEG C. under pressure of from 1 to 25 bars (total pressure at the reaction) temperature) and in the presence of sulphidation catalysts known per se, in a given case followed by hydrolysis or partial hydrolysis of the reaction products. The bis-(silylethyl)-oligosulphides are used as reinforcing additives (adhesive agents) in crosslinkable rubber mixtures containing silicate fillers and in a given case carbon black as well as in a given case sulphur and other customary constituents.
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公开(公告)号：DD297137A5
公开(公告)日：1992-01-02
申请号：DD34337490
申请日：1990-08-10
Applicant: DEGUSSA
Inventor： KLOCKNER HANS-JUERGEN , SCHMOLL RALF , PANSTER PETER , KLEINSCHMIDT PETER
IPC: C01B6/00 , C01B33/04 , C01B33/107 , C07F7/08 , C01B9/00
Abstract: The invention relates to a process for the hydrogenation of halogen-substituted compounds of elements of Periods 2 to 4 of Groups III to V of the Periodic Table with the exception of gallium, aluminium, carbon and nitrogen, which is characterised in that …… a) finely-particulate aluminium is added to a salt melt composed of 50 to 67 mol% of AlCl3 (anhydrous) and 50 to 33 mol% of sodium chloride, … b) hydrogen is introduced into the stirred suspension, or the suspension which is dispersed by other means, so as to hydrogenate the finely-divided aluminium, … c) the resulting mixture is subsequently reacted with the halogen-substituted compound … and … d) the hydrogenated compound is isolated. …
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公开(公告)号：MX153268A
公开(公告)日：1986-09-05
申请号：MX18091280
申请日：1980-01-22
Applicant: DEGUSSA
Inventor： VOIGT CARL , KLEINSCHMIDT PETER , WALTER EBERHARD
IPC: C01C3/02
Abstract: The known hydrocyanic acid-methane-ammonia (BMA) process for the production of hydrogen cyanide can now be carried out with liquified gases namely through the presence of additional hydrogen at the beginning of the reaction. The atomic ratio of carbon to nitrogen and hydrogen is from 1:1:7.1 to 1:1.33:13. As additional hydrogen there is the portion of hydrogen present coming out of the reaction "hydrocarbon+NH3". Otherwise the reaction conditions are the same as in the known BMA process.
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公开(公告)号：AU7567281A
公开(公告)日：1982-04-08
申请号：AU7567281
申请日：1981-09-25
Applicant: DEGUSSA
Inventor： VOIGT CARL , KLEINSCHMIDT PETER , SCHREYER GERD , SPERKA GERHARD
Abstract: In order to be independent of the situation in regard to methane and natural gas and at the same time to obtain a heating gas there is employed in the hydrocyanic acid-methane-ammonia process (the BMA process) in place of methane an alkanol or alkanediol having 2-4 carbon atoms, preferably ethyl alcohol, and this is reacted with ammonia in a C:N ratio of 0.8:1 to 2:1. Optionally additional hydrogen can be present.
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