公开(公告)号：US5250275A

公开(公告)日：1993-10-05

申请号：US803207

申请日：1991-12-06

Applicant: Albert Pavinato ,  Richard Pazdej ,  Remy Nicolle

Inventor： Albert Pavinato ,  Richard Pazdej ,  Remy Nicolle

IPC: C23F1/46 ,  C23G1/36 ,  C02F9/00 ,  C02F1/60 ,  C02F1/64

CPC classification number: C23G1/36 ,  Y10S423/01

Abstract: This process in which the used bath is recycled after concentration at (1) by elimination of water at (2), followed by a treatment for recovering iron oxides at (10), is characterized in that it comprises carrying out a tangential microfiltration at (5) of the concentrated bath so as to separate therefrom the silicon compounds in the non-ionic form and thereby concentrate them, and recirculating the major part of the fraction of this bath (11-17) containing these concentrated silicon compounds so as to promote the precipitation of the non-ionic compounds of the silicon.

Abstract translation: 其中在（1）通过在（2）处除去水后在二氧化碳浓缩后循环使用的浴，然后在（10）处理回收铁氧化物的方法的特征在于其包括在（ 5）的浓缩浴，以便将非离子形式的硅化合物与其分离，从而将它们浓缩，并使包含这些浓缩硅化合物的该浴（11-17）的部分的主要部分再循环，以促进 硅的非离子化合物的沉淀。

公开(公告)号：US4566877A

公开(公告)日：1986-01-28

申请号：US598574

申请日：1984-04-09

Applicant: Richard Pazdej ,  Albert Pavinato

Inventor： Richard Pazdej ,  Albert Pavinato

IPC: B01J13/00 ,  C10L1/32 ,  C21B5/00

CPC classification number: C10L1/32 ,  C10L1/324 ,  C10L1/326 ,  C21B5/004

Abstract: A process for conditioning carbon rich material in the form of finely divided solid particles includes the steps of mixing at least 70% of the finely divided solid particles with an aqueous solution, mixing in approximately 0.1 to 5% of a surface active additive with foaming properties, homogenizing and aerating the resultant to produce a carbon foam.

Abstract translation: 用于调节细碎固体颗粒形式的富碳材料的方法包括以下步骤：将至少70％的细分散的固体颗粒与水溶液混合，将约0.1至5％的表面活性添加剂与起泡性质混合 ，均化和充气所得物以产生碳泡沫。

公开(公告)号：US4332777A

公开(公告)日：1982-06-01

申请号：US157645

申请日：1980-06-06

Applicant: Richard Pazdej

Inventor： Richard Pazdej

IPC: C22B7/02 ,  C01G9/06 ,  C01G21/20

CPC classification number: C22B7/02 ,  Y02P10/212

Abstract: Process and apparatus for hydrometallurgical treatment of metallurgical dust by acid leaching followed by a solid-liquid separation. The invention is characterized in that the leaching phase is effected by moderate acid attack (pH at the end of the reaction about 4 or 5) and in which a supplementary solid-solid separation stage is provided, before the solid-liquid separation or after. The invention is applicable to all dusts resulting from treatment of metals, notably ironworking dusts, and particularly those formed in blast furnaces so as to permit the separation and recovery of useful elements contained therein, such as iron, zinc and lead.

Abstract translation: 通过酸浸法进行固液分离，对冶金粉尘进行湿法冶金处理的工艺和设备。 本发明的特征在于，浸出阶段通过中等酸侵蚀（反应结束时的pH约4或5）进行，并且在固液分离之前或之后提供补充固 - 固分离阶段。 本发明适用于金属处理，特别是铁粉尘，特别是在高炉中形成的所有粉尘，以便允许分离和回收其中所含的有用元素如铁，锌和铅。