公开(公告)号：US3580519A

公开(公告)日：1971-05-25

申请号：US3580519D

申请日：1968-03-25

Applicant: DEGUSSA

Inventor： KLEIN KURT ,  LUMBECK GERD ,  MALUZI JOACHIM

IPC: A23K20/28 ,  A23L1/00 ,  A23P10/43 ,  A61K47/02 ,  B01J2/30 ,  C01B17/10 ,  C01B25/26 ,  C01F5/02 ,  B02C19/00 ,  B02C23/06

CPC classification number: C01B25/26 ,  A23K20/28 ,  A23P10/43 ,  A61K47/02 ,  B01J2/30 ,  C01B17/10 ,  C01F5/02

Abstract: Process for protecting ground finely divided powdered substances against agglomeration or reagglomeration wherein the substance to be protected is finely ground together with a finely divided hydrophobic silica or wherein a mixture of finely divided hydrophobic silica and finely divided hydrophilic silica is added to the substance to be protected already in finely ground state and intensively mixed therewith in a mill having a grinding action.

公开(公告)号：DE2844052A1

公开(公告)日：1980-04-30

申请号：DE2844052

申请日：1978-10-10

Applicant: DEGUSSA

Inventor： LUMBECK GERD ,  FERCH HORT DIPL CHEM DR

IPC: C01B33/141 ,  C08K3/36 ,  C01B33/18

Abstract: An aqueous dispersion of a hydrophobic silica consisting of 0.1 to 50 parts of hydrophobic silica, in a given case up to 3 parts of wetting agent and 99.9 to 50 parts of water. It is produced by intensive mixing of hydrophobic silica with water with the known "dry-water-phase" as an intermediate step. In a given case there can additionally be used a wetting agent in which case the "dry-water-phase" does not occur. The dispersion of hydrophobic silicas can be mixed without additional steps or materials with rubber latex.

公开(公告)号：CA888621A

公开(公告)日：1971-12-21

申请号：CA888621D

Applicant: DEGUSSA

Inventor： MALUZI JOACHIM ,  LUMBECK GERD ,  KLEIN KURT

公开(公告)号：GB1213494A

公开(公告)日：1970-11-25

申请号：GB1393168

申请日：1968-03-22

Applicant: DEGUSSA

Inventor： KLEIN KURT ,  LUMBECK GERD ,  MALUZI JOACHIM

IPC: A23K20/28 ,  A23L1/00 ,  A23P10/43 ,  A61K47/02 ,  B01J2/30 ,  C01B17/10 ,  C01B25/26 ,  C01F5/02

Abstract: 1213494 Preventing agglomeration of powders DEUTSCHE GOLDUND SILBER SCHEIDEANSTALT 22 March 1968 [23 March 1967] 13931/68 Headings C5G and G10B [Also in Divisions A2 and F4] The agglomeration and reagglomeration of powdered materials is prevented by adding finely divided precipitated or pyrogenic hydrophobic silica to the materials either before or during their conversion to finely divided form. There may also be present finely divided, precipitated or pyrogenic hydrophilic silica. The hydrophobic silica may be pyrogenic SiO 2 with CH 3 - bonded to it, precipitated SiO 2 treated with organo silicon compounds, e.g. organohalogeno silanes or SiO 2 prepared by coprecipitation with water soluble organic compounds having reactive groups. There may be 0.1-20% of silica (overall) present and the ratio of hydrophobic to hydrophilic SiO 2 may be 1:10 to 1:1. The powdered material may be sulphur, MgO or chromium phosphate.

公开(公告)号：DE1812518A1

公开(公告)日：1970-06-18

申请号：DE1812518

申请日：1968-12-04

Applicant: DEGUSSA

Inventor： KLEIN KURT ,  LUMBECK GERD

IPC: H01M10/52

Abstract: The hydrogen-oxygen gas mixture resulting from accumulator overloading is catalytically combined to form water which is returned to the accumulator. The catalyst may contain 0.1 to 1% Pt-gp. metal (e.g. Pd) in an aluminium silicate or oxide base, made hydrophobic by treatment with dimethyldichlorosilane.

公开(公告)号：DE2140009A1

公开(公告)日：1973-02-22

申请号：DE2140009

申请日：1971-08-10

Applicant: DEGUSSA

Inventor： MUELLER KARL-HANS DIPL CHEM DR ,  LUMBECK GERD

IPC: A23B9/26 ,  A23B9/30 ,  A23K3/00

公开(公告)号：DE1642998A1

公开(公告)日：1972-04-13

申请号：DE1642998

申请日：1967-03-23

Applicant: DEGUSSA

Inventor： KLEIN KURT ,  LUMBECK GERD ,  MALUZI JOACHIM

IPC: A23K20/28 ,  A23L1/00 ,  A23P10/43 ,  A61K47/02 ,  B01J2/30 ,  C01B17/10 ,  C01B25/26 ,  C01F5/02 ,  B02C23/06

Abstract: 1213494 Preventing agglomeration of powders DEUTSCHE GOLDUND SILBER SCHEIDEANSTALT 22 March 1968 [23 March 1967] 13931/68 Headings C5G and G10B [Also in Divisions A2 and F4] The agglomeration and reagglomeration of powdered materials is prevented by adding finely divided precipitated or pyrogenic hydrophobic silica to the materials either before or during their conversion to finely divided form. There may also be present finely divided, precipitated or pyrogenic hydrophilic silica. The hydrophobic silica may be pyrogenic SiO 2 with CH 3 - bonded to it, precipitated SiO 2 treated with organo silicon compounds, e.g. organohalogeno silanes or SiO 2 prepared by coprecipitation with water soluble organic compounds having reactive groups. There may be 0.1-20% of silica (overall) present and the ratio of hydrophobic to hydrophilic SiO 2 may be 1:10 to 1:1. The powdered material may be sulphur, MgO or chromium phosphate.

公开(公告)号：DE1812519A1

公开(公告)日：1970-10-08

申请号：DE1812519

申请日：1968-12-04

Applicant: DEGUSSA

Inventor： KLEIN KURT ,  LUMBECK GERD ,  SIMON EDGAR

IPC: B01J23/40 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  H01M4/88 ,  H01M10/52

Abstract: Catalysts in the form of solid aggregates They are prepared by mixing the solid substance with hydrophobic, active, highly dispersed silicic acid or alumina or silicates and pulverising or granulating the mixture. The catalyst or the support material is treated with organohalogenosilanes, esp. dimethyl dichlorosilane, in the gaseous phase, then tempering it at 100-300 degrees C. The catalyst shows hydrophobic surface characteristics.