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    • 62. 发明授权
    • Process for the production of hydrochloric acid and neutralized sulfates
    • 生产盐酸和中和硫酸盐的方法
    • US06676917B2
    • 2004-01-13
    • US09788140
    • 2001-02-16
    • José Cabello-Fuentes
    • José Cabello-Fuentes
    • C01B701
    • C01B17/96C01B7/035C01C1/164C01C1/242C01D5/02
    • A process for the production of hydrochloric acid and neutralized sulfates comprising: reacting sulfuric acid with an alkaline metal chloride in order to obtain a liquor containing hydrochloric acid, an acid alkaline metal sulfate and an excess of sulfuric acid; separating the hydrochloric acid from the liquor containing the hydrochloric acid, the acid alkaline metal sulfate and the excess of sulfuric acid; neutralizing the acid alkaline metal sulfate and the excess sulfuric acid by adding to the remaining liquor after the separation of the hydrochloric acid a neutralizing agent to obtain a neutralized mass; cooling the neutralized mass to crystallize the neutralized alkaline metal sulfate and obtain neutralized alkaline metal sulfate crystals; and separating the neutralized alkaline metal sulfate crystals from the liquor.
    • 一种生产盐酸和中和硫酸盐的方法,包括:使硫酸与碱金属氯化物反应,以获得含有盐酸,酸性碱金属硫酸盐和过量硫酸的液体; 从含有盐酸,酸性碱金属硫酸盐和过量的硫酸的液体中分离盐酸; 在分离盐酸中和剂后向其余液体中和酸碱金属硫酸盐和过量硫酸,得到中和物质; 冷却中和的物质以使中和的碱金属硫酸盐结晶,得到中和的碱金属硫酸盐晶体; 并从该液体中分离中和的碱金属硫酸盐晶体。
    • 66. 发明授权
    • Metal and fluorine values recovery from mineral ore treatment
    • 从矿石矿石处理中回收金属和氟值
    • US5273725A
    • 1993-12-28
    • US891167
    • 1992-05-29
    • Bryan J. Carlson
    • Bryan J. Carlson
    • C01B17/96C22B3/06C22B34/14C22B47/00C22B59/00C22B60/02C01G56/00
    • C22B34/14C01B17/96C22B3/06C22B47/00C22B59/00C22B60/0226Y02P10/234
    • The process for converting water insoluble, hazardous materials of high mineral content containing, e.g., substantial metal values of one or more of Ca, Ta, Nb, Mn, Mg, Al or the like to valuable nonhazardous products or discard, wherein the material also contains substantial fluorine values and radionuclide values assaying above about 30 pCi/g, the process having the steps of contacting the materials with an acidic aqueous system or digest medium containing boric acid and an acid component containing one or more other mineral acids, the ratio of the system (Liters) to the material (Kg) ranging from about 2/1 to about 20/1, the total concentrations of all of the acids being sufficient to solubilize selected ones of the metal values at commercially acceptable rates, the contacting being carried out for a period of time and at temperatures sufficient to solubilize at least the fluorine and uranium values into a digest liquor, separating the uranium values from the digest liquor to give substantially purified uranium values, and contacting the resulting raffinate liquor with cation reactant to form and precipitate fluoride salt product, the salt product and the raffinate liquor both having radionuclide values assays of less than about 30 pCi/g.
    • 将含有高含量(例如Ca,Ta,Nb,Mn,Mg,Al等)中的一种或多种的大量金属含量的水不溶性有害材料转化成有价值的非危险产品或丢弃的方法,其中所述材料也 含有高于约30pCi / g的实质性氟值和放射性核素值,该方法具有使材料与含有硼酸和含有一种或多种其它无机酸的酸组分的酸性含水体系或消解介质接触的步骤, 该系统(升)至约2/1至约20/1的材料(Kg),所有酸的总浓度足以以商业上可接受的速率溶解选定的金属值,所述接触被携带 在一段时间内并且在足以使至少将氟和铀值溶解到消化液中的温度下,将铀值与消化液分离以产生s 将所得的萃余液与阳离子反应物接触以形成和沉淀氟化物盐产物,盐产物和萃余液均具有小于约30pCi / g的放射性核素值测定。