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    Process for recovering HCl and Fe{hd 2{b O{HD 3 {L from pickle liquor
    83.
    发明授权
    Process for recovering HCl and Fe{hd 2{b O{HD 3 {L from pickle liquor 失效
    回收HCl和Fe的方法（hd 2 {b O {来自酸洗液的HD 3 {L

    公开(公告)号：US3928529A

    公开(公告)日：1975-12-23

    申请号：US33989073

    申请日：1973-03-09

    申请人： UNION CARBIDE CORP

    发明人： GRULKE CARL A

    IPC分类号： C01B7/03 ,  C01G49/06 ,  C23G1/36 ,  C01B7/08

    CPC分类号： C23G1/36 ,  C01B7/03 ,  C01G49/06 ,  Y10S423/01

    摘要： Regeneration process for spent pickle liquor comprising the oxidizing of an aqueous solution of ferrous chloride and hydrochloric acid in the presence of activated carbon to form aqueous ferric chloride which in turn is hydrolyzed to about 232*C. on a graphite hearth to yield vaporized hydrochloric acid and iron oxide.

    摘要翻译： 包括在活性炭存在下氧化氯化亚铁和盐酸的水溶液以形成氯化铁水溶液，其再次在石墨炉底上水解至约232℃以产生蒸发的盐酸 和氧化铁。

    Closed-cycle thermochemical production of hydrogen and oxygen
    84.
    发明授权
    Closed-cycle thermochemical production of hydrogen and oxygen 失效

    公开(公告)号：US3842164A

    公开(公告)日：1974-10-15

    申请号：US32875873

    申请日：1973-02-01

    申请人： GEN ELECTRIC

    发明人： WENTORF R

    IPC分类号： C01B3/00 ,  C01B3/06 ,  C01B7/03 ,  C01B7/09 ,  C01B13/02 ,  C01B1/03 ,  C01B13/00

    CPC分类号： C01B13/0207 ,  C01B3/00 ,  C01B3/068 ,  C01B7/03 ,  C01B7/093 ,  C01B7/096 ,  Y02E60/36

    摘要： 1. A PROCESS FOR THE GRNERATION OF HYDROGEN AND OXYGEN COMPRISING THE STEPS OF: (A) REACTING FERROUS HALIDE SELECTED FROM THE GROUP CONSISTING OF FERROUS CHLORIDE AND FERROUS HALIDE SELECTED FROM WITH STREAM AT A TEMPERATURE IN EXCESS OF ABOUT 350* C. TO PRODUCE SOLID IRON OXIDE AND A FIRST GASEOUS MIXTURE CONTAINING HYDROGEN, THE RESPECTIVE HYDROGEN HALIDE AND STEAM, (B) REMOVING AND COOLING SAID FIRST GASEOUS MIXTURE, (C) BRINGING THE COOLED FIRST GASEOUS MIXTURE INTO CONRACT WITH THE IRON OXIDE FORMED TO BRING ABOUT DISSOLUTION THEREOF AND PRODUCE A SECOND GASEOUS MIXTURE SIMILAR TO SAID FIRST MIXTURE WITH REDUCED HYDROGEN HALIDE CONTENT, (D) SEPARATING AND COLLECTING HYDROGEN GAS FROM SAID SECOND GASEOUS MIXTURE, (E) REMOVING RHE SOLUTION OF FERROUS HALIDE, THE RESPECTIVE FERRIC HALIDE, WATER AND HYDROGEN HALIDE RESULTING FROM SAID DISSOLUTION, (F) EXTRACTING FERIC HALIDE FROM SAID SOLUTION, (G) RECOVERING FEROUS HALIDE, WATER AND HYDROGEN HALIDE MIXTURE FROM THE FERRIC HALIDE-DEPLETED MIXTURE, (H) RECIRCULATING AND HEATING THE FERROUS HALIDE, WATER, HYDROGEN HALIDE MIXTURE FOR THE CONDUCT OF STEP (A), (I) THERMALLY DECOMPOSING THE EXTRACTED FERRIC HALIDE AT A TEMPERAUTRE OF ABOUT 300* C. TO PRODUCE FERROUS HALIDE AND THE RESPECTIVE HALOGEN, SAID FERROUS HALIDE BEING ADDED TO THE HEATED FERROUS HALIDE, WATER HYDROGEN HALIDE MIXTURE BEING RECIRCULATED, (J) REACTING THE HALOGEN WITH WATER AND MAGNESIUM HYDROXIDE IN THE PRESENCE OF A CATALYST FOR DECOMPOSITION OF THE WATER AND (K) RECORVERING AND COLLECTING OXYGEN GAS PRODUCED THEREBY.

    Treatment of waste hci pickle liquor
    85.
    发明授权
    Treatment of waste hci pickle liquor 失效
    废水扒渣器的处理

    公开(公告)号：US3682592A

    公开(公告)日：1972-08-08

    申请号：US3682592D

    申请日：1970-07-20

    申请人： PORI INC

    发明人： KOVACS GEZA L

    IPC分类号： C01B7/03 ,  C01G49/06 ,  C01G49/10 ,  C23G1/36 ,  C01B7/08

    CPC分类号： C23G1/36 ,  C01B7/03 ,  C01G49/06 ,  C01G49/10 ,  Y10S423/01

    摘要： THIS INVENTION IS DIRECTED TO THE OXIDATION OF FERROUS CHLORIDE IN LIQUID AQUEOUS SOLUTION, SUCH AS WASTE HC1 PICKLE LIQUOR, TO A SOLUTION CONTAINING FERRIC CHLORIDE BY INTIMATELY INTERMINGLING SAID FERROUS CHLORIDE SOLUTION WITH FREE OXYGEN (1) IN THE PRESENCE OF A DISSOLVED PROMOTER CATION SELECTED FROM THE CLASS OF AMMONIUM, CHROMIUM, COBALT, COPPER, MANGANESE, NICKEL, ZINC OR MIXTURES THEREOF AT AN ELEVATED TEMPERATURE OR (2) IN THE ABSENCE OF PROMOTER, AT SUPERATMOSPHERIC PRESSURE AND AT A TEMPERATURE OF AT LEAST ABOUT 175*F., FOR A TIME SUFFICIENT TO OBTAIN A FERRIC CHLORIDE CONTAINING SOLUTION. A MIXTURE OF AMMONIUM IONS AND CUPRIC IONS IS THE PREFERRED PROMOTER. THE INVENTION IS ALSO DIRECTED TO PRODUCING HYDROCHLORIC ACID FROM THE FERRIC CHLORIDE SOLUTION OBTAINED BY THE AFORESAID OXIDATION PROCESS BY THE SOLUTION AT A TEMPERATURE OF ABOUT 250-400* F. TO OBTAIN A HC1 GAS-WATER VAPOR OVERHEAD AND A BOTTOMS AQUEOUS SLURRY OF IRON OXIDE.

    Method of recovering alumina from alunite and aluminosilicate materials
    86.
    发明授权
    Method of recovering alumina from alunite and aluminosilicate materials 失效
    从ALONITE和ALUMINOSILICATE材料中回收氧化铝的方法

    公开(公告)号：US3647372A

    公开(公告)日：1972-03-07

    申请号：US3647372D

    申请日：1970-07-13

    申请人： ELEUSIS BAUXITE MINES INC

    发明人： SVORONOS JASON

    IPC分类号： C01B7/03 ,  C01F7/22 ,  C01F7/02 ,  C01D5/00 ,  C01F7/04

    CPC分类号： C01F7/22 ,  C01B7/03

    摘要： A method for extracting pure alumina from alunite and aluminosilicate ores having a high-SO3 content wherein a mixture of at least two alkali chlorides is added to the ore and the combined ore and alkali chlorides is heated to a temperature between 500* and 590* C.

    摘要翻译： 从具有高SO 3含量的铝酸钠和铝硅酸盐矿石中提取纯氧化铝的方法，其中将至少两种碱金属氯化物的混合物加入到矿石中，并将组合的矿物和碱金属氯化物加热至500至590℃的温度 。