公开(公告)号：US07232544B2

公开(公告)日：2007-06-19

申请号：US10492220

申请日：2002-10-07

Applicant: Torfinn Buseth ,  Kenneth Friestad ,  Pal Runde

Inventor： Torfinn Buseth ,  Kenneth Friestad ,  Pal Runde

IPC: C21C5/42

CPC classification number: B01D21/245 ,  B01J10/005 ,  B01J19/0073 ,  B01J19/244 ,  B01J2219/0009 ,  B01J2219/0236 ,  B01J2219/0272 ,  C01B33/037 ,  C01B33/039 ,  Y02P20/149

Abstract: The invention relates to an apparatus for continuous slag treatment of molten silicon for removal of one a more impurity elements from the silicon, the apparatus comprising a vessel (1) intended to contain molten silicon and liquid slag. The vessel (1) has an upwardly extending overflow (4) for slag connected to an outlet opening (3) for slag is the bottom (2) of the vessel, a open-ended pipe (5) arranged about and at a distance from the overflow (4) such than there is an annulus between the pipe (5) and the overflow (4), which pipe (5) extends upwards to a level above the top of the overflow (4) and downwards to the bottom (2) of the vessel, the pipe (5) having at least one opening (6) at the bottom of the vessel (1) a closeable outlet opening (8,9) for treated silicon in the sidewall of the vessel, means (14) for supply of heat energy to the vessel, means for intermittent supply of solid or molten silicon to vessel and means for continuous of substantially continuous supply of solid or liquid slag to the top of the vessel.

Abstract translation: 本发明涉及一种用于连续熔渣处理熔融硅的装置，用于从硅中除去一种或多种杂质元素，该装置包括用于容纳熔融硅和液态渣的容器（1）。 容器（1）具有向上延伸的用于与出口开口（3）连接的炉渣溢流（4），炉渣是容器的底部（2），开口管（5）围绕和离开 溢流口（4）不是在管道（5）和溢流口（4）之间有一个环，该管道（5）向上延伸到高于溢流口（4）顶部的水平面并向下延伸到底部（2） ），所述管（5）在所述容器（1）的底部具有至少一个开口（6），用于在所述容器的侧壁中处理的硅的可闭合的出口（8,9），所述装置（14） 用于向容器供应热能，用于将固体或熔融硅间歇地供应到容器的装置以及用于连续向容器顶部连续供应固体或液体渣的装置。

公开(公告)号：US08268280B2

公开(公告)日：2012-09-18

申请号：US12744803

申请日：2009-01-07

Applicant: Torfinn Buseth ,  Einar Andersen

Inventor： Torfinn Buseth ,  Einar Andersen

IPC: C01F11/18 ,  C01F11/06 ,  C01F11/24 ,  C01B25/00 ,  C01B35/00 ,  C01B13/18 ,  C01B13/36 ,  C01G49/10

CPC classification number: C01F11/32 ,  C01F11/00 ,  C01F11/02 ,  C01F11/16 ,  C01F11/18 ,  C01F11/46 ,  C01P2006/80

Abstract: The present invention relates to a method for production of calcium compounds having very low content of phosphorus and boron from an impure calcium chloride, solution containing phosphorus and boron, which method comprises the following steps: a) addition of a FeCl3-solution to the calcium chloride solution, b) adjusting the pH of the solution by addition of a base to between 3 and 9.5 for precipitation of iron hydroxide, iron phosphate and boron compounds, c) removal of the solid precipitate from the solution in step b) obtaining a purified calcium chloride solution, d) precipitation of a calcium compound from the solution from step c), and e) separation of the calcium compound from the solution in step d).

Abstract translation: 本发明涉及一种从不纯的氯化钙，含磷和硼的溶液中生产具有非常低的磷和硼含量的钙化合物的方法，该方法包括以下步骤：a）将FeCl 3溶液加入到钙 氯化物溶液，b）通过添加碱将溶液的pH调节至3至9.5之间以沉淀氢氧化铁，磷酸铁和硼化合物，c）在步骤b）中从溶液中除去固体沉淀物获得纯化的 氯化钙溶液，d）从步骤c）的溶液中沉淀钙化合物，和e）在步骤d）中从钙溶液中分离钙化合物。

公开(公告)号：US20100303707A1

公开(公告)日：2010-12-02

申请号：US12744803

申请日：2009-01-07

Applicant: Torfinn Buseth ,  Einar Andersen

Inventor： Torfinn Buseth ,  Einar Andersen

IPC: C01F11/32

CPC classification number: C01F11/32 ,  C01F11/00 ,  C01F11/02 ,  C01F11/16 ,  C01F11/18 ,  C01F11/46 ,  C01P2006/80

Abstract: The present invention relates to a method for production of calcium compounds having very low content of phosphorus and boron from an impure calcium chloride, solution containing phosphorus and boron, which method comprises the following steps: a) addition of a FeCl3-solution to the calcium chloride solution, b) adjusting the pH of the solution by addition of a base to between 3 and 9.5 for precipitation of iron hydroxide, iron phosphate and boron compounds, c) removal of the solid precipitate from the solution in step b) obtaining a purified calcium chloride solution, d) precipitation of a calcium compound from the solution from step c), and e) separation of the calcium compound from the solution in step d).

Abstract translation: 本发明涉及一种从不纯的氯化钙，含磷和硼的溶液中生产具有非常低的磷和硼含量的钙化合物的方法，该方法包括以下步骤：a）将FeCl 3溶液加入到钙 氯化物溶液，b）通过添加碱将溶液的pH调节至3至9.5之间以沉淀氢氧化铁，磷酸铁和硼化合物，c）在步骤b）中从溶液中除去固体沉淀物获得纯化的 氯化钙溶液，d）从步骤c）的溶液中沉淀钙化合物，和e）在步骤d）中从钙溶液中分离钙化合物。