公开(公告)号：US20190300982A1

公开(公告)日：2019-10-03

申请号：US16462895

申请日：2017-11-22

Applicant: Environmental Clean Technologies Limited

Inventor： Keith Michael HENLEY-SMITH ,  Adam David GILES ,  Lachlan Phillip Clive BARTSCH ,  Ashley Charles MOORE

IPC: C22B1/245 ,  C22B5/12 ,  C21B13/00 ,  C21B13/04

Abstract: A continuous process for low temperature reduction of metal oxides from carbonaceous material, using in situ produced reducing gas. In particular, a method of reducing metal oxide to metal in a continuous process comprising: (a) continuously introducing composite bodies comprising low rank carbonaceous material and metal oxide containing material that are in intimate contact and in a dry mix ratio of from about 1:2 to about 1:10 to an upper region of an upright retort; (b) conveying said bodies from said upper region to a heated lower region of said retort wherein said composite bodies are exposed to increasing temperature of up to about 950° C. and wherein said composite bodies are exposed to reducing gas generated in situ for a period of from about 15 minutes to about 3 hours to thereby produce a reduced metal containing product; and (c) continuously removing the reduced metal containing product from a lower region of the retort.

公开(公告)号：US20230357884A1

公开(公告)日：2023-11-09

申请号：US18352745

申请日：2023-07-14

Applicant: Environmental Clean Technologies Limited

Inventor： Keith Michael HENLEY-SMITH ,  Adam David GILES ,  Lachlan Phillip Clive BARTSCH ,  Ashley Charles MOORE

IPC: C22B1/245 ,  C21B13/00 ,  C21B13/04 ,  C22B5/12

CPC classification number: C22B1/245 ,  C21B13/0066 ,  C21B13/04 ,  C22B5/12 ,  C21B13/0073

Abstract: A continuous process for low temperature reduction of metal oxides from carbonaceous material, using in situ produced reducing gas. In particular, a method of reducing metal oxide to metal in a continuous process comprising:



(a) continuously introducing composite bodies comprising low rank carbonaceous material and metal oxide containing material that are in intimate contact and in a dry mix ratio of from about 1:2 to about 1:10 to an upper region of an upright retort;
(b) conveying said bodies from said upper region to a heated lower region of said retort wherein said composite bodies are exposed to increasing temperature of up to about 950° C. and wherein said composite bodies are exposed to reducing gas generated in situ for a period of from about 15 minutes to about 3 hours to thereby produce a reduced metal containing product; and
(c) continuously removing the reduced metal containing product from a lower