Production of titania
    14.
    发明申请
    Production of titania 失效
    生产二氧化钛

    公开(公告)号:US20060233686A1

    公开(公告)日:2006-10-19

    申请号:US10531795

    申请日:2003-10-17

    CPC classification number: C22B34/125 C22B3/08 C22B3/44 C22B34/1259 Y02P10/234

    Abstract: A sulfate process for producing titania from a titaniferous material is disclosed. The process includes leaching the titaniferous material and producing a leach liquor, separating titanyl sulfate from leach liquor, hydrolysis of the extracted titanyl sulfate, and thereafter calcining the solid phase produced in the hydrolysis step. The process is characterised by multiple stage leaching of the titaniferous material.

    Abstract translation: 公开了一种用于从含钛材料制备二氧化钛的硫酸盐方法。 该方法包括浸提含钛材料并生产浸出液,从浸出液中分离出硫酸氧钛,水解萃取的硫酸氧钛,然后煅烧在水解步骤中产生的固相。 该方法的特征在于钛酸盐材料的多级浸出。

    Production of titania
    15.
    发明申请
    Production of titania 失效
    生产二氧化钛

    公开(公告)号:US20060177363A1

    公开(公告)日:2006-08-10

    申请号:US10531784

    申请日:2003-10-17

    CPC classification number: C22B34/1259 C22B3/0005 C22B34/125 Y02P10/234

    Abstract: A sulfate process for producing titania from a titaniferous material is disclosed. The process includes leaching the titaniferous material and producing a leach liquor, precipitating iron sulfate from the leach liquor, solvent extraction of titanyl sulfate from leach liquor, hydrolysis of the extracted titanyl sulfate, and thereafter calcining the solid phase produced in the hydrolysis step. The process is characterised by using at least part of the raffinate from the solvent extraction step as at least part of the leach solution in the initial leach step.

    Abstract translation: 公开了一种用于从含钛材料制备二氧化钛的硫酸盐方法。 该方法包括浸出含钛材料并产生浸出液,从浸出液中沉淀出硫酸铁,从浸出液中溶剂萃取硫酸氧钛,水解萃取的硫酸氧钛,然后煅烧在水解步骤中产生的固相。 该方法的特征在于使用溶剂萃取步骤中的至少一部分萃余液作为初始浸出步骤中的浸出溶液的至少一部分。

    Method, system, and program for implementing retention policies to archive records
    17.
    发明申请
    Method, system, and program for implementing retention policies to archive records 有权
    用于实施归档记录的保留策略的方法,系统和程序

    公开(公告)号:US20050055519A1

    公开(公告)日:2005-03-10

    申请号:US10737367

    申请日:2003-12-15

    Abstract: Provided are a method, system, and program for receiving a request to remove a record. A determination is made as to whether a state associated with the record includes at least one hold state and whether the state associated with the record includes at least a retention period that has not expired. The request to remove the record is denied in response to determining that the state associated with the record includes at least one of at least one hold state and one retention period that has not expired.

    Abstract translation: 提供了用于接收删除记录的请求的方法,系统和程序。 确定与记录相关联的状态是否包括至少一个保持状态,以及与记录相关联的状态是否至少包括尚未到期的保留期。 响应于确定与记录相关联的状态包括至少一个保持状态和尚未到期的保留期间中的至少一个,否则删除该记录的请求被拒绝。

Patent Agency Ranking