公开(公告)号：US3925481A

公开(公告)日：1975-12-09

申请号：US27342872

申请日：1972-07-20

Applicant: STAMICARBON

Inventor： GEUS JOHN W

IPC: B01J23/28 ,  B01J37/00 ,  B01J37/02 ,  C07C45/34 ,  C07C45/35 ,  C07C45/02

CPC classification number: C07C45/35 ,  B01J23/28 ,  B01J37/00 ,  B01J37/02 ,  C07C45/34 ,  C07C49/08

Abstract: There is provided a process for the production of ketones and a catalyst for increasing the proportion of ketone produced by the process, wherein an olefine, molecular oxygen and steam are passed over a catalyst containing discrete particles of tin oxide, a majority of such particles being of a size of at most 50 A, homogeneously distributed over a particulate supporting material, the tin oxide particles being covered by a substantially monomolecular layer of molybdenum oxide.

Abstract translation: 提供了一种制备酮的方法和一种用于增加由该方法生产的酮的比例的催化剂，其中烯烃，分子氧和蒸汽通过含有离散的氧化锡颗粒的催化剂，大部分这样的颗粒是 尺寸为至多50的均匀分布在颗粒状支撑材料上的氧化锡颗粒被氧化钼的基本单分子层覆盖。

公开(公告)号：US3679398A

公开(公告)日：1972-07-25

申请号：US3679398D

申请日：1970-03-20

Applicant: STAMICARBON

Inventor： GEUS JOHN W

IPC: B22F9/24 ,  C01B13/14 ,  C01B13/36 ,  C22C19/07 ,  H01F1/06 ,  C22B5/00 ,  C22B23/00

CPC classification number: C01B13/14 ,  B22F9/24 ,  B22F2998/00 ,  C01B13/363 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/10 ,  H01F1/065 ,  B22F1/0025

Abstract: THE PREPARATION OF ACICULAR COBALT-CONTAINING PERMANENTLY MAGNETIZABLE MATERIAL IS DESCRIBED WHEREIN THE PH VALUE OF A SOLUTION CONTAINING A COBALT SALT AND A FERROUS SALT, OR A COBALT SALT AND A NICKEL SALT OR A COMBINATION OF SAID THREE SALTS, IS HOMOGENEOUSLY INCREASED AT A CONTROLLED TEMPERATURE AND WITH AGITATION, FOLLOWING WHICH THE RESULTING PRECIPITATE IS THEN SUBJECTED TO A REDUCTIVE TREATMENT IN A SEPARATE LIQUID PHASE.

公开(公告)号：US3704226A

公开(公告)日：1972-11-28

申请号：US3704226D

申请日：1970-12-21

Applicant: STAMICARBON

Inventor： GEUS JOHN W

IPC: C01G49/02 ,  C04B35/26 ,  G11B5/706 ,  H01F1/34 ,  C04B35/28 ,  C04B35/32 ,  C04B35/36

CPC classification number: H01F1/344 ,  C01G49/02 ,  C01P2006/80 ,  C04B35/26 ,  G11B5/70678

Abstract: A PROCESS FOR THE PREPARATION OF PEMANENTLY MAGNETIZABLE IRON CONTAINING MIXED OXIDES BY PRECPITATION FROM AN AQUEOUS SOLUTION IS DISCLOSED. AN AQUEOUS SOLUTION OF A FERROUS SALT CONTAINING ALSO ONE OR MORE SALTS OF OTHER METALS, BUT NO OXIDIZING AGENTS, IS INTENSIVELY STIRRED, WHEREBY A PRECIPITATE IS GRADUALLY FORMNED AT ELEVATED TEMPERATURE BY HYDROLIZING UREA, LKIEWISE PRESENT IN THE SOLUTION, TO AMMONIUM CARBAMATE, OR AMMONIUM CARBONATE, AND THE PRECIPITATE SO FORMED IS SUBSEQUENTLY SEPARATED FROM THE LIQUID, WASHED, DRIED AND IF NECESSARY, HEAT-TREATED IN CONTACT WITH AIR. PREFERABLY THE PRECIPITATION IS CARRIED OUT IN AN INERT ATMOSPHERE. IF THE PRECIPITATE IS USED FOR THE PREPARATION OF A PERMANENTLY MAGNETIZABLE MIXED OXIDE TO BE USED ON TAPES OR SHEETS, THE MATERIAL IS SUBJECTED TO A TERMAL TREATMENT BELOW 500*C., AND FOR THE PREPARATION OF MOULDED OBJECTS, THE COMPRESSED MATERIAL IS SUBJECTED TO A THERMAL TREATMENT AT TEMPERATURES OF 1000*C. OR OVER.

公开(公告)号：US3616327A

公开(公告)日：1971-10-26

申请号：US3616327D

申请日：1969-11-10

Applicant: STAMICARBON

Inventor： BARENDRECHT EMBRECHT ,  GEUS JOHN W

IPC: C25B1/00 ,  C01G49/10 ,  B01K1/00

CPC classification number: C25B1/00

Abstract: Ferrous salt solutions are produced by contacting an aqueous iron salt solution in a reaction vessel with two electrodes, one of which consisting of a layer of mercury and the other of a hydrogen electrode, consisting of a noble-metal conductor along and around which a stream of hydrogen is passed, the two electrodes being connected by means of an electric conductor.

公开(公告)号：US3692683A

公开(公告)日：1972-09-19

申请号：US3692683D

申请日：1970-03-26

Applicant: STAMICARBON

Inventor： GEUS JOHN W

IPC: C01G49/08 ,  G11B5/706 ,  C04B35/26

CPC classification number: G11B5/70689 ,  C01G49/08 ,  C01P2002/52 ,  C01P2004/62 ,  C01P2006/42 ,  G11B5/70642 ,  G11B5/70647 ,  G11B5/70652 ,  G11B5/70668 ,  G11B5/70673 ,  Y10S423/02

Abstract: A PROCESS IS DESCRIBED FOR THE PREPARATION OF A PERMANENTLY MAGNETIZABLE IRON-CONTAINING PARTICULATE METAL MATERIAL WHEREIN FROM A FERROUS ION CONTAINING SOLUTION, WHEREIN OTHER METALS ARE PRESENT IN AN ATOMIC QUANTITY NOT LARGER THAN HALF THAT OF THE FERROUS ION, THE METALS ARE CO-PRECIPITATED BY GRADUAL AND HOMOGENEOUS CONVERSION OF AT LEAST 2/3 PART OF THE BIVALENT IRON TO TRIVALENT IRON TO A PH BETWEEN 2 AND 6.5 AND UNDER CONTROLLED TEMPERATURE CONDITIONS, AND SAID CONVERSION IS CONTROLLED TO PROCEED AT A RATE NO GREATER THAN AT MOST 0.3 GRAM ATOMS PER LITER OF SOLUTION PER HOUR. THE PRECIPITATE IS SUBSEQUENTLY SEPARATED FROM THE SOLUTION AND WASHED AND DRIED.

公开(公告)号：US3668149A

公开(公告)日：1972-06-06

申请号：US3668149D

申请日：1969-10-13

Applicant: STAMICARBON

Inventor： GEUS JOHN W ,  LEMMENS JAN C

IPC: B01J21/16 ,  B01D39/06 ,  B01J23/70 ,  B01J23/74 ,  B01J37/00 ,  B01J37/02 ,  B01J37/06 ,  B01J37/08 ,  C04B20/06 ,  B01J11/44

CPC classification number: C04B20/06 ,  B01D39/06 ,  B01J23/70 ,  B01J37/00 ,  B01J37/0201

Abstract: Porous catalyst bodies are produced from a thermally stable inorganic carrier material by introducing a suspension of the said carrier material into a liquid immiscible with the suspension medium and heated above the boiling point of the said medium. After evaporation of the suspension medium to an essential extent, the porous catalyst bodies formed are separated from the liquid and subsequently heated to an elevated temperature to improve the strength caracteristics thereof.

Abstract translation: 通过将所述载体材料的悬浮液引入与所述悬浮介质不混溶的液体中并在所述介质的沸点之上被加热，由热稳定的无机载体材料制备多孔催化剂体。 在将悬浮介质蒸发至必要程度之后，将形成的多孔催化剂体与液体分离，随后加热至升高温度以提高其强度特性。

公开(公告)号：US3654161A

公开(公告)日：1972-04-04

申请号：US3654161D

申请日：1970-01-05

Applicant: STAMICARBON

Inventor： GEUS JOHN W

IPC: G11B5/706 ,  H01F1/06 ,  C04B35/00

CPC classification number: G11B5/70631 ,  H01F1/063

Abstract: THE PRESENT INVENTION CONCERNS A PROCESS FOR THE PREPARATION LOF A FERROMAGNETIC MATERIAL WHICH IS PRECIPITATED IN A FINELY DIVIDED FORM ONTO A CARRIER MATERIAL SUSPENDED IN A SOLUTION CONTAINING THE ELEMENTS TO BE PERCIPITATED. THE CARRIER MATERIAL IS GENERATED IN THE LIQUID IN WHICH THE PRECIPATION OF THE FERROMAGNEITC IN THE MATERIAL WILL BE CARRIED OUT, BY INJECTING A DISSOLVED COMPOUND OF THE CARRIER MATERIAL TO BE FORMED ONTO THE AGITATED LIQUID IN WHICH THE CARRIER MATERIAL IS PRACTICALLY INSLOLUBLE. AN ALKALINE SOLUTION OF SILICA IS INJECTED INTO LIQUID, WHOSE PH VALUE IS LOWER THAN 7, AN ACIDIC SOLUTION OF METAL ION FROM WHICH THE CARRIER MATERIAL MUST BE BUILT UP IS INJECTED INTO THE LIQUID, WHOSE PH VALUE RANGES BETWEEN 4 AND 7, OR A SOLUTION OF THE ELEMENTS FROM WHICH THE CARRIER MATERIAL MUST BE BUILT UP IS INJECTED IN A READILY HYDROLYSABLE FORM IN A WATER-MISCIBLE SOLVENT, INTO WATER AS THE LIQUID. THE METAL IONS USED ARE IONS OF ALUMINIIUM, TITANIUM, TIN OR THORIUM, OR MIXTURES THEREOF, OR USED IS MADE OF HYDROLYSABLE CHLORIDES SUCH AS SICL4, ALCL3, TICL4, SBCL3 RO SNCL4, OR MIXTURES THEREOF, DISSOLVED IN METHYL ALCOHOL, ETHYL ALCOHOL OR ACETONE AND HYDROYSABLE ESTERS OF INORGANIC ACIDS AND ALCOHOLS, SUCH AS AL(OC2H5)3, SB(I-C2H7O)3, DISSOLVED IN METHYL ALCOHOL, ETHYL ALCOHOL OR ACETONE.