公开(公告)号：US3904400A

公开(公告)日：1975-09-09

申请号：US37069173

申请日：1973-06-18

Applicant: BASIC INC

Inventor： ZEGERS THEODOOR W ,  GOLDBERGER WILLIAM M ,  JEPSEN TAGE L B ,  LEE HARLEY C ,  PEARSON EDWARD P

IPC: C22B23/00 ,  C22B23/02

CPC classification number: C22B23/00 ,  C22B23/021

Abstract: Lateritic ore is mixed with a chloridizing agent and a carbonaceous reductant to form an ore mixture for segregation roasting. The ore mixture is roasted at a temperature in the range of 1600*-2000*F. for a time duration of 0.5 to 2 hours in the presence of a reducing atmosphere provided by a mixture of CO-CO2 or H2-H2O gases to form a calcine containing nickel alloyed with iron. The calcine is subjected to a suitable treatment to recover the nickel therefrom.

Abstract translation: 将红土矿石与氯化剂和碳质还原剂混合以形成用于分离焙烧的矿石混合物。 在由CO-CO 2或H 2 -H 2 O气体的混合物提供的还原气氛的存在下，将矿石混合物在1600°-2000°F的温度范围内烘烤0.5至2小时，形成 含有与铁合金的镍的煅烧物。 对煅烧物进行适当的处​​理从其中回收镍。

公开(公告)号：US3578162A

公开(公告)日：1971-05-11

申请号：US3578162D

申请日：1969-10-01

Applicant: BASIC INC

Inventor： JEPSEN TAGE L B

IPC: C01F5/14 ,  C01F5/24 ,  B03B3/44

CPC classification number: C01F5/14 ,  C01F5/24

Abstract: Beneficiation of magnesian ores and similar derivative mixtures for concentrating or upgrading the magnesium content, usually by removal of the undesired constituents. Such mixtures after size reduction to obtain desired liberation of constituents are subjected to float and sink separations in heavy media having a gravity intermediate the float and sink constituents. Mixtures include magnesite, brucite, hydromagnesite and dolomite ores and synthetic mixtures of CaCO3 and hydrated magnesium carbonates with tetrabromoethane, methylene bromide, trichloroethylene, carbon tetrachloride and methylene iodide as heavy media diluted with lighter organic liquids as necessary to establish optimum specific gravity. Movement of material in separation zone causes lighter fraction to float to surface of media while heavier fraction penetrates media and is recovered as an underflow product.

公开(公告)号：US3640382A

公开(公告)日：1972-02-08

申请号：US3640382D

申请日：1970-02-04

Applicant: BASIC INC

Inventor： JEPSEN TAGE L B

IPC: B03D1/02 ,  B03B7/00

CPC classification number: B03D1/02

Abstract: Concentration of magnesite present in ores containing siliceous and calcareous impurities and having some clay slimes as impurities by first reducing the slimes content of a magnesite ore pulp. cleaning same in a first flotation treatment wherein some of said impurities are separated as a float product, mixing a selected group of depressants for said siliceous and calcareous impurities in predetermined proportions in a liquid carrier, adding the premixed depressants to the cleaned pulp feed to a second flotation treatment at a predetermined rate, and stage adding an emulsifiable tall oil fatty acid collector reagent of low rosin content in starvation amounts at intervals in the progressive pulp flow through the second flotation treatment thereby floating a portion of the total magnesite content at each introduction stage.

Abstract translation: 存在于含有硅质和钙质杂质的矿石中的菱镁矿的浓度，并且通过首先降低菱镁矿浆的泥质含量，并且具有一些粘土泥作为杂质。 在第一浮选处理中进行清洗，其中将一些所述杂质作为浮法产物分离，将所选择的一组用于所述硅质和钙质杂质的抑制剂以预定比例混合在液体载体中，将预混合的抑制剂加入到清洁的纸浆进料中 以预定速率进行第二次浮选处理，并且通过第二浮选处理在渐进式纸浆流中间歇地加入具有低松脂含量的可乳化的妥尔油脂肪酸收集剂，其中所述乳化剂具有低的松香含量，从而在每次引入时漂浮一部分总的菱镁矿含量 阶段。

公开(公告)号：US3383057A

公开(公告)日：1968-05-14

申请号：US51422965

申请日：1965-12-16

Applicant: BASIC INC

Inventor： JEPSEN TAGE L B

IPC: B03D1/02

CPC classification number: B03D1/02