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公开(公告)号：US3833719A
公开(公告)日：1974-09-03
申请号：US22680872
申请日：1972-02-16
Applicant: BASF AG
CPC classification number: C02F1/76 , B01F5/0405 , Y10S261/72
Abstract: THE INVENTION RELATES TO A METHOD OF MIXING A GAS WITH LIQUIDS IN A TUBULAR REACTOR BY FEEDING THE GAS AND THE LIQUIDS TO A MIXING zONE. THE INVENTION ALSO RELATES TO AN SEPARATUS FOR CARRYING OUT THIS METHOD. RAPID MIXING ID EFFECTIVE BY FEEDING A STREAM OF LIQUID TO THE MIXING ZONE THROUGH ONE OR MORE NOZZELS WHOSE AXS EXTEND IN THE SAME DIRECTION AS THE AXIS OF THE MIXING ZONE, IN INJECTED LIQUID HAVING A VELOCITY OF FROM 5 TO 100 M./S., WHILST A SECOND STREAM OF LIQUID OF MUCH LOWER VELOCITY IS INTRODUCED INTO THE REACTOR INLET ZONE SURROUNDING SAID NOZZEL. THE GAS IS FED TO THE MIXING ZONE THROUGH ONE
OR MORE GAS INLETS LOCATED NEAR THE ORIFIECES OF THE LIQUID NOZZELS. THE MEAN CROSS-SECTIONAL AREA OF THE MIXING ZONE BEARS A SPECIFIC RATIO TO THE CROSS-SECTIONAL AREA OF THE ORIFICES OF THE LIQUID NOZZLES AND THE LENGTH OF THE MIXING ZONE BEARS A SPECIFIC RATIO TO THE HYDROLIC DIAMETER THEREOF. THE METHOD AND APPARATUS ARE PARTICULARLY SUITABLE FOR CARRYING OUT REACTIONS IN WHICH SHORT RESIDENCE TIMES ARE DESIRABLE AND THE REACTION PRODUCTS MUST NOT RECONTACT THE STARTING MATERIALS.-
公开(公告)号：US3752623A
公开(公告)日：1973-08-14
申请号：US3752623D
申请日：1971-07-14
Applicant: BASF AG
Inventor： SINN R , SCHELLENBERG R
CPC classification number: B29C39/24 , B29B7/7615 , B29B7/90 , B29C31/041 , B29C33/0072 , B29K2077/00 , B29K2105/0002 , B29K2105/0067
Abstract: An apparatus for the production of moldings by activated anionic polymerization of lactams in which a lactam melt containing a catalyst and a lactam melt containing an activator are separately preheated to polymerization temperature in two melt reservoirs and supplied to a control unit including a pair of valves and a vertically oriented mixing chamber, mixed therein, and forced upwardly into the mold to be filled wherein valve seats for the respective valves are in the wall of said mixing chamber.
Abstract translation: 通过内酰胺的活性阴离子聚合制备模制品的装置，其中含有催化剂的内酰胺熔体和含有活化剂的内酰胺熔体在两个熔体储存器中分别预热到聚合温度，并供给到包括一对阀的控制单元和 垂直定向的混合室，混合在其中并被迫向上进入要填充的模具，其中用于各个阀的阀座位于所述混合室的壁中。
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公开(公告)号：US3755452A
公开(公告)日：1973-08-28
申请号：US3755452D
申请日：1967-04-03
Applicant: BASF AG
Inventor： HORNBERGER P , NAGEL O , SCHEURING H , SINN R , HERRMANN G
IPC: B01F3/04 , B01F3/08 , B01F5/02 , B01F13/10 , B01J19/24 , B01J19/26 , C07C29/50 , C07C45/33 , B01F5/04 , C07C29/00 , C07C45/02
CPC classification number: C07C29/50 , B01F3/04099 , B01F3/0876 , B01F5/0212 , B01F13/1013 , B01J19/246 , B01J19/2465 , B01J19/26 , C07C45/33 , C07C2601/14 , C07C31/1355 , C07C49/403
Abstract: A PROCESS FOR MIXING GASES AND LIQUIDS WITH A LIQUID MEDIUM IN WHICH THE GAS AND THE LIQUID ARE INJECTED INTO AN IMPULSE EXCHANGE CHAMBER WHICH IS LOCATED IN THE LIQUID MEDIUM, AND APPARATUS FOR CARRYING OUT THE MIXING.
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公开(公告)号：US3730852A
公开(公告)日：1973-05-01
申请号：US3730852D
申请日：1971-11-09
Applicant: BASF AG
CPC classification number: G11B5/8404
Abstract: THE INVENTION RELATES TO A PROCESS FOR THE MANUFACTURE OF MAGNETIC RECORDING MEDIA HAVING THIN METALLIC FERROMAGNETIC COATINGS. THE MAGNETIC RECORDING MEDIA ARE MANUFACTURED BY TREATING A SUBSTRATE HAVING A COATING CONSISTING OF A DISPERSION OF PARTICULATE IRON OR ZINC IN A BINDER SUCH THAT ELECTROLESS DEPOSITION OF COPPER TAKES PLACE BY DISPLACEMENT OF THE IRON OR ZINC, WHICH COPPER COATING MAY BE THICKENED BY ELECTRODEPOSITING COPPER OR SILVER THEREON. A FERROMAGNETIC COATING CONSISTING OF COBALT AND NICKEL AND ADDITIONALLY PHOSPHORUS, COPPER OR ZINC AND/OR MANGANESE AND OPTIONALLY IRON IS ELECTRODEPOSITED ON THE COPPER LAYER. THE PROCESS OF THE INVENTION PRODUCES MAGNETIC RECORDING MEDIA WITH THIN METALLIC COATINGS OF HIGH ABRASION RESISTANCE WHICH CAUSE MINIMUM HEAD WEAR AND HAVE A HIGH STORAGE CAPACITY.
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公开(公告)号：GB1317272A
公开(公告)日：1973-05-16
申请号：GB2543970
申请日：1970-05-27
Applicant: BASF AG
Inventor： SINN R , ZAHRADNIK F , JUNG H , MICHEL H
Abstract: 1317272 Blow-moulding polylactams BADISCHE ANILIN- & SODA-FABRIK AG 27 May 1970 [28 May 1969] 25439/70 Heading B5A A hollow polylactam article is prepared from lactams of 5-13 ring members by activated anionic polymerization in the barrel of a ram extruder or in a cartridge sealed into the barrel so that the polylactam is 1-10‹ C. below its melting point owing to the heat of reaction by extruding it as a solid rod through a die kept at 230-300‹ C. and forcing it on to a mandrel kept at 250-280‹ C. to form a closed-end tubular blank which is blow-moulded with an internal pressure not more than 1À5 atmospheres gauge. The blank may be pre-expanded to a sphere of similar surface area to the final product before mould closure. A wire mesh which may be coated, e.g. with polyethylene may be placed in the mould and partially enveloped by the polylactam during blow-moulding. The blank may be heated in a liquid bath at 1-5‹ C. above the temperature of the polylactam before blow moulding. The expanding fluid may be gas or liquid. The mould, which may be wooden or metal sheeting, may be kept at 20-100‹ C. and may be cooled between moulding operations.
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Patent Agency Ranking
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公开(公告)号：DK682774A
公开(公告)日：1975-09-08
申请号：DK682774
申请日：1974-12-27
Applicant: BASF AG
Abstract: Waste water and sewage, contg. biodegradable impurities, are treated in >=1 enclosures with dissolved oxygen and activated sludge. The contact between these three reacting materials is intensified by increasing the number of interfaces and by shortening the diffusion paths in the sludge floccules. Injectors are used to this effect with a liq. nozzle an annular, concentric nozzle for the gas and an impulse exchange tube. The jet of liq. leaves the nozzle at a speed of 29m/sec. and sets up a shear gradient in the activated sludge; the air bubbles are finely divided and at the same time the sludge is sucked into the zone of the jet and is intensely mixed in the tube. The sludge leaving the latter is satd. with oxygen and the gas it contains causes it to rise in the form of a bubbling column to the surface of the activated sludge, giving up its oxygen proportionally to the depth of immersion of the injector and the oxygen content of the gas. The quantity of sludge which can be treated per unit of vol. of a biological settlement plant per day can be increased by 100% as compared with known processes.
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