PROCESS FOR THE RECOVERY OF METALS AND HYDROCHLORIC ACID
    1.
    发明申请
    PROCESS FOR THE RECOVERY OF METALS AND HYDROCHLORIC ACID 有权
    金属和氢氯酸的回收方法

    公开(公告)号:US20130052104A1

    公开(公告)日:2013-02-28

    申请号:US13579864

    申请日:2011-02-04

    IPC分类号: C01B13/32 C01G49/04 B01J14/00

    摘要: A method for recovering hydrochloric acid and metal oxides from a chloride liquor is described. The method uses a chloride liquor including the metal and mixing the liquor and a matrix solution to produce a reaction mixture, wherein the matrix solution assists oxidation/hydrolysis of the metal with HCl production. In a preferred embodiment the matrix solution includes zinc chloride in various stages of hydration and an oxygen containing gas is added to the mix. A method where the improvement is the mixing of a liquor and a matrix solution where the solution assists hydrolysis of the metal with HCl production is also disclosed. The reactor is a column reactor in a preferred embodiment. Further disclosed is the method of using the matrix solution and a reactor for recovering hydrochloric acid and for oxidizing/hydrolysis of a metal.

    摘要翻译: 描述了从氯化物液体中回收盐酸和金属氧化物的方法。 该方法使用包含金属的氯化物液体并混合液体和基质溶液以产生反应混合物,其中所述基质溶液有助于生产HCl的金属的氧化/水解。 在优选的实施方案中,基质溶液包括不同水合阶段的氯化锌,并将含氧气体加入混合物中。 还公开了一种方法,其中改进是液体和基质溶液的混合,其中溶液有助于金属的HCl水解产生。 反应器是优选实施方案中的塔式反应器。 还公开了使用基质溶液的方法和用于回收盐酸并用于金属的氧化/水解的反应器。

    HIGH PURITY COBALT CHLORIDE AND MANUFACTURING METHOD THEREFOR

    公开(公告)号:US20180312984A1

    公开(公告)日:2018-11-01

    申请号:US16027945

    申请日:2018-07-05

    发明人: Gaku Kanou

    摘要: A high purity cobalt chloride having a purity of 5N (99.999%) or higher and a manufacturing method of the high purity cobalt chloride via electrolysis are provided. In the method, cobalt having a purity of 5N or higher is used as an anode, a diluted hydrochloric acid bath having a pH of 1.5 to 3.0 is used as an electrolytic solution, the cobalt anode and a cathode plate are partitioned with an anion exchange membrane, and electrodeposition of the cobalt onto the cathode plate is thereby inhibited. The manufacturing method is capable of providing high purity cobalt chloride at a higher purity and at a lower production cost than conventional methods. Under circumstances where demands for cobalt chloride may increase, cobalt chloride needs to be manufactured at high volume and at low cost, and the method disclosed herein provides a technique capable of satisfying the foregoing requirements.

    Method for Synthesis of Lactic Acid and Its Derivatives
    3.
    发明申请
    Method for Synthesis of Lactic Acid and Its Derivatives 有权
    乳酸及其衍生物的合成方法

    公开(公告)号:US20140058130A1

    公开(公告)日:2014-02-27

    申请号:US13727589

    申请日:2012-12-26

    发明人: Xiaoping Zhou Rui Bi

    IPC分类号: C07C51/00

    摘要: A method for synthesis of lactic acid and its derivatives is provided. First, a mixture is prepared, which includes: at least one carbohydrate-containing raw material, at least one alcohol, at least one composite catalyst containing metal chloride(s) (MCln) and tin-containing compound(s), and at least one solvent, wherein M is selected from a group consisting of Li+, Na+ K+, Mg2+, Ca2+, Sr2+, Ga3+, In3+, Sb3+, Bi3+, Cr3+, Mn2+, Fe2+, Co2+, Ni2+, Zn2+, and n represents 1, 2 or 3. Then, the mixture is heated to obtain lactic acid and its derivatives. By using the above catalyst and method, it is capable of converting carbohydrate-containing raw material to lactic acid and its derivatives directly in a more efficient and economical way.

    摘要翻译: 提供了一种合成乳酸及其衍生物的方法。 首先,制备混合物,其包括:至少一种含碳水化合物的原料,至少一种醇,至少一种含有金属氯化物(MCln)和含锡化合物的复合催化剂,至少 一种溶剂,其中M选自Li +,Na + K +,Mg2 +,Ca2 +,Sr2 +,Ga3 +,In3 +,Sb3 +,Bi3 +,Cr3 +,Mn2 +,Fe2 +,Co2 +,Ni2 +,Zn2 +,n表示1,2或 然后,将混合物加热以获得乳酸及其衍生物。 通过使用上述催化剂和方法,能够以更有效和经济的方式将含碳水化合物的原料直接转化成乳酸及其衍生物。

    HIGH PURITY COBALT CHLORIDE AND MANUFACTURING METHOD THEREFOR
    6.
    发明申请
    HIGH PURITY COBALT CHLORIDE AND MANUFACTURING METHOD THEREFOR 审中-公开
    高纯度氯化钴及其制造方法

    公开(公告)号:US20160168728A1

    公开(公告)日:2016-06-16

    申请号:US14906774

    申请日:2014-09-05

    发明人: Gaku Kanou

    IPC分类号: C25B1/26 C25B11/04 C01G51/08

    摘要: Provided is high purity cobalt chloride having a purity of 5N (99.999%) or higher, and a manufacturing method of the high purity cobalt chloride via electrolysis, wherein cobalt having a purity of 5N or higher is used as an anode, a diluted hydrochloric acid bath having a pH of 1.5 to 3.0 is used as an electrolytic solution, the cobalt anode and a cathode plate are partitioned with an anion exchange membrane, and electrodeposition of the cobalt onto the cathode plate is thereby inhibited. An object of this invention is to provide a manufacturing method capable of providing high purity cobalt chloride at a higher purity and at a lower production cost than conventional methods. Under circumstances where demands for cobalt chloride may increase, cobalt chloride needs to be manufactured at high volume and at low cost, and the present invention offers a technique capable of satisfying the foregoing requirements.

    摘要翻译: 提供纯度为5N(99.999%)以上的高纯度氯化钴和通过电解的高纯度氯化钴的制造方法,其中使用纯度为5N以上的钴作为负极,稀盐酸 使用pH为1.5〜3.0的浴作为电解液,将钴阳极和阴极板用阴离子交换膜隔开,由此抑制钴沉积到阴极板上。 本发明的目的是提供能够以比常规方法更高的纯度和更低的生产成本提供高纯度氯化钴的制造方法。 在需要氯化钴可能增加的情况下,氯化钴需要以大体积和低成本制造,并且本发明提供了能够满足上述要求的技术。

    Method for synthesis of lactic acid and its derivatives
    7.
    发明授权
    Method for synthesis of lactic acid and its derivatives 有权
    乳酸及其衍生物的合成方法

    公开(公告)号:US08835670B2

    公开(公告)日:2014-09-16

    申请号:US13727589

    申请日:2012-12-26

    发明人: Xiaoping Zhou Rui Bi

    IPC分类号: C07C69/68 C07C51/00

    摘要: A method for synthesis of lactic acid and its derivatives is provided. First, a mixture is prepared, which includes: at least one carbohydrate-containing raw material, at least one alcohol, at least one composite catalyst containing metal chloride(s) (MCln) and tin-containing compound(s), and at least one solvent, wherein M is selected from a group consisting of Li+, Na+ K+, Mg2+, Ca2+, Sr2+, Ga3+, In3+, Sb3+, Bi3+, Cr3+, Mn2+, Fe2+, Co2+, Ni2+, Zn2+, and n represents 1, 2 or 3. Then, the mixture is heated to obtain lactic acid and its derivatives. By using the above catalyst and method, it is capable of converting carbohydrate-containing raw material to lactic acid and its derivatives directly in a more efficient and economical way.

    摘要翻译: 提供了一种合成乳酸及其衍生物的方法。 首先,制备混合物,其包括:至少一种含碳水化合物的原料,至少一种醇,至少一种含有金属氯化物(MCln)和含锡化合物的复合催化剂,至少 一种溶剂,其中M选自Li +,Na + K +,Mg2 +,Ca2 +,Sr2 +,Ga3 +,In3 +,Sb3 +,Bi3 +,Cr3 +,Mn2 +,Fe2 +,Co2 +,Ni2 +,Zn2 +,n表示1,2或 然后,将混合物加热以获得乳酸及其衍生物。 通过使用上述催化剂和方法,能够以更有效和经济的方式将含碳水化合物的原料直接转化成乳酸及其衍生物。

    Process for production of CoCl.sub.2 solution from cobaltic oxide-hydrate
    9.
    发明授权
    Process for production of CoCl.sub.2 solution from cobaltic oxide-hydrate 失效
    从氧化钴 - 水合物生产CoCl 2溶液的方法

    公开(公告)号:US4394366A

    公开(公告)日:1983-07-19

    申请号:US260059

    申请日:1981-05-04

    IPC分类号: C01G51/08 C01G53/08

    CPC分类号: C22B23/0423 C01G51/085

    摘要: This invention is concerned with a process for dissolving oxidic trivalent cobalt compounds in hydrochloric acid while avoiding the generation of chlorine. It includes the following steps (a) slurrying in water the trivalent cobalt compound to be dissolved and (b) treating the resulting slurry with a reduction agent from the group consisting of methanol, formaldehyde and formic acid and with hydrochloric acid. The contact of the hydrochloric acid with the slurry should occur in the presence of the reducing agent. The rate of acid addition should be controlled to maintain the slurry at a pH above 1.

    摘要翻译: 本发明涉及将氧化三价钴化合物溶解在盐酸中同时避免产生氯的方法。 其包括以下步骤(a)在水中制备待溶解的三价钴化合物和(b)用由甲醇,甲醛和甲酸和盐酸组成的组中的还原剂处理得到的浆料。 盐酸与浆料的接触应在还原剂存在下进行。 应控制酸加入速率以保持浆液pH高于1。

    AQUEOUS COBALT CHLORIDE SOLUTION PURIFICATION METHOD

    公开(公告)号:US20180148344A1

    公开(公告)日:2018-05-31

    申请号:US15577507

    申请日:2016-05-20

    摘要: The present invention provides an aqueous cobalt chloride solution purification method, in which impurities can be efficiently removed from a cobalt salt solution.Provided is a method for bringing metallic nickel into contact with an aqueous solution containing cobalt chloride to remove an impurity by a substitution reaction, in which the pH of the aqueous solution containing cobalt chloride is adjusted to not less than 1.5 and not more than 2.5. Since the pH of the aqueous solution containing cobalt chloride is adjusted to not less than 1.5 and not more than 2.5, a passive film on a surface of the metallic nickel can be effectively removed. When the passive film is removed, the metallic nickel comes in contact with the aqueous solution containing cobalt chloride, so that an impurity more noble than the metallic nickel can be precipitated by the substitution reaction. In addition, since the metallic nickel is only brought into contact with the aqueous solution containing cobalt chloride, the impurity can be easily removed from the aqueous solution containing cobalt chloride.