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公开(公告)号:KR790001442B1
公开(公告)日:1979-10-13
申请号:KR750000276
申请日:1975-02-14
Applicant: HOECHST AG
IPC: C01F11/04
Abstract: Spherical or elipsoidal Ca(OH)2 was heated in a down draft of gasses from a series of burners while moving on a travelling grate to produce a product suitable for the manuf. of CaC2. The Ca (OH)2 was fed onto the grate from a hopper and subsequently covered by a layer of granular calsite with particle size of 10-30mm whose thickness, less than 50% of the whole, should be increased with an increase of the size(10-40cm3) of the Ca(OH)2. The temp. of the top layer was 1,000-1,100≦̸C, and that of the gas leaving below 300-400≦̸C.
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公开(公告)号:KR810000548B1
公开(公告)日:1981-05-27
申请号:KR740004276
申请日:1974-12-16
Applicant: HOECHST AG
Inventor: PORTZ W , STENDEL J , MOORMANN G , WEILER H , WITT H
IPC: F26B20/00
Abstract: Continuous drying of damp granular goods uses a burning gas at such a temp. that the temp. difference between the waste gas and dried goods is 150 - 200≦̸C pref. 180≦̸C. A part of the damp granular goods is formed into a vertically trickling layer and is dried by the waste gas of the rotating drum flowing through the layer. The pre-purified gas is fed to an electrostatic separator(17). The thickness of the layer and its cross section as well as the spectrum of the granules in the layer are chosen in such a way, that a reduced press. of 5 - 20 mm pref. 10 mm water column exists in the rotating drum(1).
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公开(公告)号:NO750492L
公开(公告)日:1975-08-19
申请号:NO750492
申请日:1975-02-14
Applicant: HOECHST AG
Abstract: Pellet-shaped calcium hydroxide forming part of the mixture of flux and ores in electrothermal calcium carbide furnaces is calcined. The pellets are made by granulating or briquetting moist calcium hydroxide, delivered to a sintering grate and conveyed thereon through a heating zone, wherein high temperatures are produced by the combustion of gas, above the grate, and wherein the combustion gas is exhausted, below the grate. The calcium hydroxide pellets are more especially placed on to the grate, covered with a layer of broken limestone and the undried pellets are directly conveyed through the heating zone, in an apparatus for carrying out the process.
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公开(公告)号:ZA7500704B
公开(公告)日:1976-01-28
申请号:ZA7500704
申请日:1975-02-04
Applicant: HOECHST AG
CPC classification number: C04B2/10 , C01F11/04 , C01P2004/61 , Y02P40/42
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公开(公告)号:ZA7407914B
公开(公告)日:1976-01-28
申请号:ZA7407914
申请日:1974-12-12
Applicant: HOECHST AG
Inventor: MOORMANN G , WITT H , PORTZ W , WEILER H , STENDEL J
IPC: F26B17/00 , B03C1/00 , F26B11/02 , F26B17/12 , F26B17/32 , F26B20/00 , F26B21/00 , F26B25/00 , F26B
CPC classification number: F26B25/007 , F26B11/028 , F26B17/122 , Y02P20/129
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公开(公告)号:IN141238B
公开(公告)日:1977-02-05
申请号:IN211CA1975
申请日:1975-02-04
Applicant: HOECHST AG
Abstract: Pellet-shaped calcium hydroxide forming part of the mixture of flux and ores in electrothermal calcium carbide furnaces is calcined. The pellets are made by granulating or briquetting moist calcium hydroxide, delivered to a sintering grate and conveyed thereon through a heating zone, wherein high temperatures are produced by the combustion of gas, above the grate, and wherein the combustion gas is exhausted, below the grate. The calcium hydroxide pellets are more especially placed on to the grate, covered with a layer of broken limestone and the undried pellets are directly conveyed through the heating zone, in an apparatus for carrying out the process.
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公开(公告)号:ZA75704B
公开(公告)日:1976-01-28
申请号:ZA75704
申请日:1975-02-04
Applicant: HOECHST AG
Abstract: Pellet-shaped calcium hydroxide forming part of the mixture of flux and ores in electrothermal calcium carbide furnaces is calcined. The pellets are made by granulating or briquetting moist calcium hydroxide, delivered to a sintering grate and conveyed thereon through a heating zone, wherein high temperatures are produced by the combustion of gas, above the grate, and wherein the combustion gas is exhausted, below the grate. The calcium hydroxide pellets are more especially placed on to the grate, covered with a layer of broken limestone and the undried pellets are directly conveyed through the heating zone, in an apparatus for carrying out the process.
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公开(公告)号:NO750492A
公开(公告)日:1975-08-19
申请号:NO750492
申请日:1975-02-14
Applicant: HOECHST AG
CPC classification number: C04B2/10 , C01F11/04 , C01P2004/61 , Y02P40/42
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