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1. (APAP 1373) A process for extraction of metals from sulfide mineral concentrates or for production of sulfuric acid from sulfur.

Office : African Regional Intellectual Property Organization (ARIPO)
Application Number: AP/P/1999/001692 Application Date: 15.11.1999
Publication Number: AP 1373 Publication Date: 25.02.2005
Publication Kind : B
Designated States: GH, GM, KE, LS, MW, SD, SZ, UG, ZW
Prior PCT appl.: Application Number:PCTUS9809936 ; Publication Number: Click to see the data
IPC:
C22B 3/18
B01J 19/30
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B
PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
3
Extraction of metal compounds from ores or concentrates by wet processes
18
with the aid of micro-organisms or enzymes, e.g. bacteria or algae
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19
Chemical, physical, or physico-chemical processes in general; Their relevant apparatus
30
Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
Applicants: PHILLIPS PETROLEUM COMPANY
Inventors: SHARPJames E
KARLAGEKelly L.
YOUNGTom L
STUFFLEKevin
Agents: FISHER CORMACK & BOTHA
Priority Data: US60/046,639 16.05.1997 US
Title: (EN) A process for extraction of metals from sulfide mineral concentrates or for production of sulfuric acid from sulfur.
Abstract:
(EN) The invention provides a process for extracting metals from sulfide mineral concentrates or for the production of sulfuric acid from sulfur. The first step of the process comprises binding the concentrates or sulfur with a binding agent to high area density packing consisting of sphere with a ring and pin arrangement to obtain high pulp densities and a high fraction of open volume for flow of process solutions. The second step of the process comprises leaching the metals or the sulfur.
Also published as:
MXPA/a/1999/010513BRPI9809440EP0981652CA2289485AU1998075738ID025.277
WO/1998/051828