公开(公告)号：DE59003970D1

公开(公告)日：1994-02-03

申请号：DE59003970

申请日：1990-11-07

Applicant: DEGUSSA

Inventor： WERLE PETER DR ,  TRAGESER MARTIN ,  STOBER REINHARD DR

IPC: A01N33/00 ,  A01N47/44 ,  C08G73/00 ,  C08G73/04

公开(公告)号：DE3907070C2

公开(公告)日：1994-02-03

申请号：DE3907070

申请日：1989-03-04

Applicant: DEGUSSA

Inventor： WERLE PETER DR ,  TRAGESER MARTIN ,  WEIS SVEA

IPC: A01N47/06 ,  A01N47/14 ,  A01N47/16 ,  C07C329/16 ,  C07C333/20 ,  C07C329/12 ,  A01N47/12 ,  C07D263/04 ,  C07D295/21

公开(公告)号：AT93820T

公开(公告)日：1993-09-15

申请号：AT91118027

申请日：1991-10-23

Applicant: DEGUSSA

Inventor： WERLE PETER DR ,  TRAGESER MARTIN ,  PIANA HERMANN DR

IPC: C02F1/50 ,  C07C45/51 ,  C07C47/22

公开(公告)号：DE4113470A1

公开(公告)日：1992-10-29

申请号：DE4113470

申请日：1991-04-25

Applicant: DEGUSSA

Inventor： WERLE PETER DR ,  TRAGESER MARTIN ,  DUDERSTADT ULRIKE

IPC: C07C53/06

Abstract: Calcium formate is produced in aqueous phase by reaction of calcium hydroxide with formaldehyde in the presence of hydrogen peroxide or by reaction of calcium peroxide with formaldehyde. The molar ratio of CaO or Ca(OH)2 to H2CO to H2O2 is 1 to 2 to 1-1.2 and the molar ratio of CaO2 to H2CO is 1 to 2. Calcium formate is obtained in an almost substantially quantitative yield and in highly pure form. The process avoids the disadvantages of prior processes for the production of calcium formate from calcium hydroxide and formaldehyde.

公开(公告)号：FI915682A0

公开(公告)日：1991-12-02

申请号：FI915682

申请日：1991-12-02

Applicant: DEGUSSA

Inventor： WERLE PETER ,  TRAGESER MARTIN ,  PIANA HERMANN

IPC: C02F1/50 ,  C07C45/51 ,  C07C47/22 ,  A01N

Abstract: The direct dosing of aqueous solutions with acrolein as a microbiocide is problematic because of the associated laborious safety measures and the hitherto known use of reaction mixtures from the deacetalisation has proven not to be very economical. … According to the invention, aqueous solutions can be dosed in a simple, safe and economical manner with acrolein at a sufficient concentration level to be active as a biocide by cleaving acrolein acetals in the aqueous phase in the presence of a strongly acid deacetalisation catalyst into acrolein and the alcohol component, continuously removing the resulting acrolein from the deacetalisation mixture and transferring the acrolein into the aqueous solution to be dosed using an inert gas stream or a liquid jet pump with the aqueous solution to be dosed as the jet liquid.

公开(公告)号：DE4002403A1

公开(公告)日：1991-08-01

申请号：DE4002403

申请日：1990-01-27

Applicant: DEGUSSA

Inventor： WERLE PETER DR ,  TRAGESER MARTIN ,  STOBER REINHARD DR

IPC: A01N33/00 ,  A01N47/44 ,  C08G73/00 ,  C08G73/04

Abstract: Prodn. of biocidal polymeric guanidine salts (I) comprises carrying out the reaction of equimolar amts. of an amine HRN-CH2-X-CH2-NHR' (II) with cyanogen chloride (II) and the polymerisatio.

公开(公告)号：CA2655739C

公开(公告)日：2014-03-25

申请号：CA2655739

申请日：2007-06-14

Applicant: EVONIK DEGUSSA GMBH

Inventor： WERLE PETER ,  KRIMMER HANS-PETER ,  SCHMIDT MANFRED ,  STADTMUELLER KLAUS ,  TRAGESER MARTIN

IPC: C07D251/34

Abstract: The invention is directed to an improved, reliably performable process for preparing triallyl isocyanurate (TAIC) by Cu2+-catalysed rearrangement of triallyl cyanurate (TAC) at at least 90°C. According to the invention, TAC and, if required, also a Cu2+ catalyst and solvent are fed continuously to a start reaction mixture after onset of the initially inhibited isomerization reaction, the isomerization is performed at from 90 to 160°C and an amount of reaction mixture equivalent to the amount of reactant is drawn off continuously and sent to the workup. Preference is given to effecting the isomerization in TAIC as the reaction medium.

公开(公告)号：PT2066622E

公开(公告)日：2014-02-05

申请号：PT06793479

申请日：2006-09-13

Applicant: EVONIK DEGUSSA GMBH

Inventor： WERLE PETER ,  MERZ FRIEDHELM ,  TRAGESER MARTIN

IPC: C07C277/08 ,  C07C279/28

公开(公告)号：BRPI0714426A2

公开(公告)日：2013-02-13

申请号：BRPI0714426

申请日：2007-06-14

Applicant: EVONIK DEGUSSA GMBH

Inventor： WERLE PETER ,  KRIMMER HANS-PETER ,  SCHMIDT MANFRED ,  STADTMUELLER KLAUS ,  TRAGESER MARTIN

IPC: C07D251/34

Abstract: Preparation of triallylisocyanurate comprises rearranging triallylcyanurate in the presence of copper (II) salts (0.01-1 wt.%) at at least 90[deg]C, preferably 90-160[deg]C; introducing separately or in a mixture of triallylcyanurate and copper (II) salts into the triallylisocyanurate; cooling the reaction mixture at less than 90[deg]C; continuously adding the reaction mixture and isolating the triallylisocyanurate from the reaction mixture.

公开(公告)号：AU2007271863B2

公开(公告)日：2012-04-05

申请号：AU2007271863

申请日：2007-06-14

Applicant: EVONIK DEGUSSA GMBH

Inventor： STADTMULLER KLAUS ,  WERLE PETER ,  KRIMMER HANS-PETER ,  SCHMIDT MANFRED ,  TRAGESER MARTIN

IPC: C07D251/34

Abstract: The invention is directed to an improved, reliably performable process for preparing triallyl isocyanurate (TAIC) by Cu-catalysed rearrangement of triallyl cyanurate (TAC) at at least 90°C. According to the invention, TAC and, if required, also a Cu catalyst and solvent are fed continuously to a start reaction mixture after onset of the initially inhibited isomerization reaction, the isomerization is performed at from 90 to 160°C and an amount of reaction mixture equivalent to the amount of reactant is drawn off continuously and sent to the workup. Preference is given to effecting the isomerization in TAIC as the reaction medium.