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1. 发明专利

DE2810464A1 Oleum prodn. by thermal decomposition of steel sulphate - esp. from pickling plant or titanium di:oxide mfr., using dry gas contg. oxygen and ferric oxide catalyst 未知
公开(公告)号：DE2810464A1
公开(公告)日：1979-09-13
申请号：DE2810464
申请日：1978-03-10
申请人： BAYER AG
发明人： WIESCHEN HERMANN , POTES WILLI , GUTH HANS DIPL ING DR , GERKEN RUDOLF DR , MEYER UHRISTIAN DIPL ING
IPC分类号： C01B17/69 , C01B17/68
摘要： In the prodn. of oleum and absorption of SO3 in oleum, metal sulphates are decomposed at 520-600 degrees C with dry gas contg. O2 in the presence of Fe2O3, the SO3 formed is absorbed in oleum and the residual gas is used for indirect heating of the cracking gas to 800-1000 degrees C after intermediate combustion. The process allows the use of metal sulphates obtd. in large amts. in pickling plants and in the mfr. of TiO2 for oleum prodn. Pref. the oxidising gas contains >=15 vol.% O2 and the temp. of the cracking gas flowing in counter-current to the goods to be decomposed is reduced to ca. 350-400 degrees C.

2. 发明专利

RO65914A 未知
公开(公告)号：RO65914A
公开(公告)日：1979-07-15
申请号：RO8024274
申请日：1974-10-16
申请人： BAYER AG
发明人： GUTH HANS , JONAS GERHARD , WEISCHEDE KLAUS K , WIESCHEN HERMANN , KAISER HANS J
IPC分类号： B01D53/14 , B01D53/26 , C01B17/56 , C01B17/76 , C01B17/16

3. 发明专利

NO773165A 未知
公开(公告)号：NO773165A
公开(公告)日：1978-03-30
申请号：NO773165
申请日：1977-09-14
申请人： BAYER AG , METALLGESELLSCHAFT AG
发明人： GERKEN RUDOLF , GUTH HANS , MUECKE CHRISTOPH , POTES WILLI , WIESCHEN HERMANN
IPC分类号： C01B17/50 , C01B17/58 , C01B17/775 , C02F1/04 , C01B
CPC分类号： C01B17/58 , C01B17/775 , Y10S423/02

4. 发明专利

DE2630196A1 未知
公开(公告)号：DE2630196A1
公开(公告)日：1978-01-19
申请号：DE2630196
申请日：1976-07-05
申请人： METALLGESELLSCHAFT AG , BAYER AG
发明人： DOERR HEINZ DIPL ING , DARADIMOS GEORG DIPL ING DR , GRIMM HUGO , SCHMIDT GEORG , GERKEN RUDOLF DR , MUECKE CHRISTOPH DIPL ING , WIESCHEN HERMANN
IPC分类号： C01G49/14 , C01B17/50 , C01B17/74 , C01B17/90 , C01G49/02 , C01B17/92
摘要： A process for the recovery of sulfuric acid from waste sulfuric acid containing iron sulfate and from solid iron sulfate of high water content of crystallization which consists essentially of:

5. 发明专利

DE2529709A1 未知
公开(公告)号：DE2529709A1
公开(公告)日：1977-01-20
申请号：DE2529709
申请日：1975-07-03
申请人： METALLGESELLSCHAFT AG , BAYER AG
发明人： DOERR KARL-HEINZ DIPL ING , GRIMM HUGO , SCHMITT KARL E , SCHMIDT GEORG , GERKEN RUDOLF DR , FEUCHT HELMUT DR , MUECKE CHRISTOPH DIPL ING , MUELLER WOLFGANG-DIETER DR , WIESCHEN HERMANN
IPC分类号： B01J8/04 , C01B17/76 , C01B17/765

6. 发明专利

DE2159789A1 未知
公开(公告)号：DE2159789A1
公开(公告)日：1973-06-07
申请号：DE2159789
申请日：1971-12-02
申请人： BAYER AG
发明人： GUTH HANS DIPL ING DR , KLEINE-WEISCHEDE KLAUS DR , REHER PETER DIPL ING , WIESCHEN HERMANN
IPC分类号： C01B17/76 , C01B17/54 , C01B17/765 , C01B17/68
摘要： 1413539 Preparation of SO 3 and H 2 SO 4 BAYER AG 28 Nov 1972 [2 Dec 1971] 54969/72 Heading C1A SO 3 and/or H 2 SO 4 are produced by mixing 5-40% by weight of the total S required from sulphur reserve 2 with 0À5 to 1À0 times its molar amount of SO 3 from oleum tower 7 through conduit 8, recycling at 50‹ to 100‹ C., burning S in primary combustion chamber 1 without external cooling at a temperature of 1500‹ to 2000‹ C. with at most the amount of commercial O 2 required for complete combustion to SO 2 from oxygen supply 4 and cooling the combustion gases to 800‹ to 1000‹ C. in secondary combustion chamber 9. Then the remaining 95 to 60% S is mixed with the cooled combustion gases and with sufficient commercial O 2 for stoichiometric combustion to SO 2 and burning at 1700‹ to 2500‹ C. The resulting SO 2 is added to sufficient commercial O 2 for stoichiometric combustion to SO 3 in batches to separate contact catalyst layers 18 arranged in series in contact system 16 so that the molar ratio of O 2 to SO 2 diminishes from one contact layer 18 to the next from 5À5 : 1 to 1À5 ; 1 before the first layer 18 to 0À5 : 1 after the final SO 2 addition, 5 to 20% by volume of SO 3 based on the total gas reaching the first contact layer being added to the gas mixture before the first contact layer, the temperature in the contact layers preferably being from 600‹ to 620‹ C., recovering the resulting SO 3 and optionally condensing it in condenser 27 or absorbing it in oleum or H 2 SO 4 , in absorption stage 28. As shown, cooling between contact layers is carried out in heatexchangers 25. To prevent condensation of S vapour at the entrance to the secondary combustion stage the maximum amount of S vapour present is 180 g./Nm. 3 at a wall temperature of 250‹ C. and 450 g./Nm. 3 at a wall temperature of 280‹ C.

7. 发明专利

DE1948754A1 未知
公开(公告)号：DE1948754A1
公开(公告)日：1971-05-06
申请号：DE1948754
申请日：1969-09-26
申请人： METALLGESELLSCHAFT AG , BAYER AG
发明人： DOERR KARL-HEINZ DIPL-ING , BIELZ SIEGFRIED , CONSTANTINESCU DAN DIPL-ING , VOLLMER HUBERT DIPL-ING DR , BEUCHELT RUDOLF DR , GUTH HANS DIPL-ING DR , REHER PETER DIPL-ING , WIESCHEN HERMANN
IPC分类号： C01B17/54

8. 发明专利

DE1758622A1 未知
公开(公告)号：DE1758622A1
公开(公告)日：1971-03-18
申请号：DE1758622
申请日：1968-07-08
申请人： BAYER AG
发明人： GUTH HANS DR , SCHUBERT KLAUS DIPL-ING , WIESCHEN HERMANN
IPC分类号： D06F57/00 , F27B7/00 , F27B7/38

9. 发明专利

FI69441B 未知
公开(公告)号：FI69441B
公开(公告)日：1985-10-31
申请号：FI811903
申请日：1981-06-17
申请人： BAYER AG
发明人： BECKER WOLF , PUETZ GUENTER , WIESCHEN HERMANN
IPC分类号： C01B17/765 , B01J8/18 , B01J8/24 , C01B17/77 , F28D13/00

10. 发明专利

FI811903L 未知
公开(公告)号：FI811903L
公开(公告)日：1981-12-20
申请号：FI811903
申请日：1981-06-17
申请人： BAYER AG
发明人： BECKER WOLF , WIESCHEN HERMANN , PUETZ GUENTER
IPC分类号： C01B17/765 , B01J8/18 , B01J8/24 , C01B17/77 , F28D13/00 , C01B

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