公开(公告)号：DE1940412A1

公开(公告)日：1971-04-29

申请号：DE1940412

申请日：1969-08-08

Applicant: DEGUSSA

Inventor： JANZON KARL-HEINZ DIPL-CHEM DR ,  MEYER-SIMON EUGEN DIPL-CHEM DR ,  SCHWAB HEINRICH DIPL-CHEM DR

IPC: B01J21/00 ,  B01J21/20 ,  C01B33/149 ,  C04B12/04 ,  C04B28/24 ,  C01B33/12

Abstract: Silicic acid sols are treated with a mixture of trivalent metal salts and bivalent metal salts which react to form metallic oxide coatings on the surface of the sol particles. The sols as a result are rendered more stable, as indicated by the fact that the viscosity of said sols remains constant and the tendency to gel is eliminated. The sols can be dried to give a finely divided product.

公开(公告)号：DE1592867A1

公开(公告)日：1971-03-04

申请号：DE1592867

申请日：1967-10-19

Applicant: DEGUSSA

Inventor： KLOEPFER HARRY DIPL-CHEM DR ,  JAEGER GERHARD DR ,  MEYER-SIMON EUGEN DIPL-CHEM DR ,  DUESING GERHARD DIPL-CHEM DR ,  KUEHNER GERHARD DIPL-CHEM DR ,  TUERK GUENTER DIPL-CHEM DR

IPC: C09C1/50

公开(公告)号：DE1646500A1

公开(公告)日：1971-07-15

申请号：DE1646500

申请日：1967-12-20

Applicant: DEGUSSA

Inventor： MEYER-SIMON EUGEN DIPL-CHEM DR ,  KUEHNER GERHARD DIPL-CHEM DR ,  MEFFERT PAUL

IPC: C04B35/584 ,  C04B

公开(公告)号：DE1592866A1

公开(公告)日：1971-02-18

申请号：DE1592866

申请日：1967-10-19

Applicant: DEGUSSA

Inventor： KLOEPFER HARRY DIPL-CHEM DR ,  JAEGER GERHARD DIPL-CHEM DR ,  MEYER-SIMON EUGEN DIPL-CHEM DR ,  DUESING GERHARD DIPL-CHEM DR ,  KUEHNER GERHARD DIPL-CHEM DR

IPC: C09C1/50

公开(公告)号：DE1771273A1

公开(公告)日：1972-01-05

申请号：DE1771273

申请日：1968-04-27

Applicant: DEGUSSA

Inventor： MEYER-SIMON EUGEN DIPL-CHEM DR ,  KUEHNER GERHARD DIPL-CHEM DR ,  BRUNKEN RENKE DIPL-PHYS DR ,  MEFFERT PAUL

IPC: C04B35/486 ,  C04B35/48

公开(公告)号：DE1571417B1

公开(公告)日：1971-08-12

申请号：DE1571417

申请日：1966-03-12

Applicant: DEGUSSA

Inventor： GNUTZMANN GEERT DIPL-CHEM DR ,  LOEW HORST DIPL-CHEM DR ,  MEYER-SIMON EUGEN DIPL-CHEM DR ,  MANN HERBERT

IPC: C03C1/02 ,  C03C4/00 ,  C09C1/00 ,  C04B31/28

Abstract: 1,175,624. Zirconium silicate pigments. DEUTSCHE GOLD-UND SILBER SCHEIDEANSTALT. 10 March, 1967 [12 March, 1966], No. 11380/67. Heading C1M. Zirconium silicate pigments are produced by heating sodium zirconium silicate with an ammonium salt and a colour donating metal compound at 750‹ to 1300‹ C. The resulting pigment is ground and washed to remove sodium salts. Addition of a mineralizer, e.g. an alkaline earth metal halide or a lead compound may lower the temperature required for reaction and increase the colour intensity of the pigment. Colour donating metals specified are V, Pr, Fe, Cr, Bi, Ni and Co and they may be present in the anion of the ammonium salt.

公开(公告)号：DE1767078A1

公开(公告)日：1971-08-26

申请号：DE1767078

申请日：1968-03-28

Applicant: DEGUSSA

Inventor： KRUEGER MANFRED DIPL-CHEM DR ,  MEYER-SIMON EUGEN DIPL-CHEM DR

IPC: C01B33/08

Abstract: 1,254,785. Silicon tetrahalides. DEUTSCHE GOLD-UND SILBER SCHEIDEANSTALT. 4 March, 1969 [28 March, 1968], No. 11451/69. Heading C1A.. Silicon tetrahalides are prepared by reacting one or-more halosilanes of the formula H n SiX 4-n, in which X is a halogen and n is an integer from 1 to 3, with a hydrogen halide at a temperature of from 200‹ to 800‹ C. in the presence of an inert solid material having a large surface area such as active carbon, finely divided aluminium oxide or silicon dioxide. In Examples 1 and 2, a mixture of SiCl 4 , HSiCl 3 , H 2 SiCl 2 and H 2 prepared by reacting silicon with hydrogen chloride is converted to a mixture containing almost no H 2 SiCl 2 by passage through a bed of active carbon: in Example 3 the initial mixture contained no H 2 or H 2 SiCl 2 : in Example 4 a mixture of H 2 SiCl 2 and HSiCl 3 was converted to a product containing mainly HSiCl 3 with 10% SiCl 4 : in Example 5 a mixture of HSiCl 3 and HBr was converted to SiCl 3 Br.

公开(公告)号：DE1942280A1

公开(公告)日：1971-03-18

申请号：DE1942280

申请日：1969-08-20

Applicant: DEGUSSA

Inventor： SCHWARZ RUDOLF DIPL-CHEM DR ,  MEYER-SIMON EUGEN DIPL-CHEM DR

IPC: C01B33/113 ,  C01B33/08