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71. 发明专利

FR2065696B1 未知
公开(公告)号：FR2065696B1
公开(公告)日：1974-03-22
申请号：FR7033510
申请日：1970-09-16
申请人： LOPEZ WENCESLAO
IPC分类号： C01F7/02 , C01F7/28 , C01F7/74 , C01F7/00

72. 发明专利

DE767605C 未知
公开(公告)号：DE767605C
公开(公告)日：1952-12-08
申请号：DEV0033333
申请日：1936-11-29
申请人： VAW VER ALUMINIUM WERKE AG , GOLDSCHMIDT AG TH
发明人： FULDA WILHELM DR , LOGEMANN HEINRICH DR
IPC分类号： C01F7/28

73. 发明专利

SU72295A1 Способ переработки нефелина на окись алюминия и другие продукты 未知
公开(公告)号：SU72295A1
公开(公告)日：1947-11-30
申请号：SU355813
申请日：1947-05-17
申请人： STROKOV F N
发明人： STROKOV F N
IPC分类号： C01F7/28

74. 发明专利

FR871620A 未知
公开(公告)号：FR871620A
公开(公告)日：1942-05-02
申请号：FR871620D
申请日：1941-04-18
申请人： VAW VER ALUMINIUM WERKE AG , GOLDSCHMIDT AG TH
IPC分类号： C01F7/28

75. 发明专利

DE676192C 未知
公开(公告)号：DE676192C
公开(公告)日：1939-05-27
申请号：DEE0047869
申请日：1936-01-19
申请人： ENGLERT & DR F BECKER CHEM FAB , GALINA FINANZ AKT GES
发明人： MICHELS DR-ING ANTON
IPC分类号： C01F7/28

76. 发明专利

DE661174C 未知
公开(公告)号：DE661174C
公开(公告)日：1938-06-14
申请号：DEE0045738
申请日：1934-06-24
申请人： ENGLERT & DR F BECKER R , CHEM FAB , GALINA FINANZ AKT GES
发明人： BECKER DR WILHELM
IPC分类号： C01F7/28

77. 发明专利

GB409710A Process for the decomposition of siliceous aluminiferous minerals 未知
公开(公告)号：GB409710A
公开(公告)日：1934-05-03
申请号：GB2183532
申请日：1932-08-03
申请人： CHEM FAB BUCKAU
IPC分类号： C01F7/28
摘要： In the extraction of clays, kaolins and other siliceous aluminiferous materials with aqueous sulphurous acid, the treatment is effected by the application of external heat at a temperature of from 40 DEG to 90 DEG C., and extraction is effected at any temperature within this range, and at any concentration of sulphurous acid until the amount of alumina in solution approaches the amount where decomposition of the resulting aluminium sulphite would begin to take place. The alumina content of the solution increases with time to a maximum and, if extraction were continued, would thereafter decrease. The sulphurous acid may be added in proportion as it is consumed, or the total amount may be added at the outset of the process, in which case, sealed pressure vessels are employed. It may be used in excess and as a supersaturated solution. Pressures specified vary from atmospheric to 12 atmos. The clays &c., are preferably first calcined, e.g. at 600 DEG C. and ground. Extraction is effected with moderate stirring. The solution obtained, after separation from silica, is heated, for example by direct treatment with steam, until the escape of sulphur dioxide ceases. Basic aluminium sulphite separates uncontaminated with iron, and is filtered off out of contact with air. Drawings show the effect of temperature on the decomposibility of the aluminium sulphite solutions, and also the alumina content of the solution for increasing periods of extraction and for different concentrations of sulphurous acid. The Specification as open to inspection under Sect. 91 comprises also the extraction of the materials with weak acids such as acetic and formic acids. This subject-matter does not appear in the Specification as accepted.

78. 发明专利

GB190930324A Improvements in and relating to the Manufacture of Alkali Aluminates. 未知
公开(公告)号：GB190930324A
公开(公告)日：1910-11-10
申请号：GB190930324D
申请日：1909-12-28
申请人： PENIAKOFF DMITRY ALEXANDROWITC
发明人： PENIAKOFF DMITRY ALEXANDROWITC
IPC分类号： C01F7/28
摘要： 30,324. Peniakoff, D. A. Dec. 28. Drawings to Specification. Chlorine.-In a process for the production of sodium aluminate by heating red bauxite, common salt, and a reducing-agent such as carbon or a sulphide in an atmosphere of sulphurous acid, chlorine is obtained (instead of hydrochloric acid) if all the materials used are specially dried. The process is carried out in a revolving furnace heated by the injection of pulverized or liquid fuel and air at the lower end and having means for admitting more air at about the middle. Specification 4311/91, is referred to.

79. 发明专利

UA80425C2 METHOD FOR COAGULANT PREPARATION 未知
公开(公告)号：UA80425C2
公开(公告)日：2007-09-25
申请号：UA20041109134
申请日：2004-11-08
申请人： INST OF BIOORG CHEMISTRY AND P
发明人： KASHKOVSKYI VOLODYMYR ILLICH , VOINOVSKYI VOLODYMYR VOLODYMYR , ZUBENKO OLEKSANDR VOLODYMYROVY
IPC分类号： B01J14/00 , C01F7/00 , C01F7/26 , C01F7/28 , C01F7/48 , C01F7/56 , C01F7/60 , C02F1/52
摘要： An object of the invention is creation on the basis of available aluminium containing coagulant raw materials, efficacy of which is increased due to presence of colloidal silicic acid in the reagent composition, which carries out the function of flocculant. It is achieved by mixing of the liquid glass solution of the definited concentration of SiO2 with sulfoacidic ion-exchange resin K??-2.8 or by it passing through the fixed layer of cationite to achievement of a given value pH solution after cationite with gradual addition of aluminium sulphate water solution to obtained silicic acid by mixing.

80. 发明专利

RU2039711C1 СПОСОБ ПОЛУЧЕНИЯ КОАГУЛЯНТА 未知
公开(公告)号：RU2039711C1
公开(公告)日：1995-07-20
申请号：SU5029052
申请日：1992-02-25
申请人： INST CHIMII TECH REDKIK
发明人： ZAKHAROV VIKTOR I , PETROVA VALENTINA I
IPC分类号： C02F1/52 , C01F7/26 , C01F7/28 , C02F101/10 , C02F103/02

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