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Publication numberUS822713 A
Publication typeGrant
Publication dateJun 5, 1906
Filing dateApr 3, 1905
Priority dateApr 3, 1905
Publication numberUS 822713 A, US 822713A, US-A-822713, US822713 A, US822713A
InventorsCharles M Allen, Edward William Lindquist
Original AssigneeRalph Baggaley
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method of utilizing as fuel the volatile portions of sulfid ores.
US 822713 A
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Description  (OCR text may contain errors)

ing; as Fuel Ores, of which the following 1s a full, clear,

- but liming z, slight bluish cost.

"'f"- mr ri i NALTMM @JlALiL l3 ll BAG (i LFY, OF/l llTSBUR r, PENNSYLVANIA, (lill'il'tlll ll U22: Jill A 6" LG, M= Nfillliii, AND EDWARD "Wt LLllA M LENDQUISTE, Oi ll-IlCJi'i-E'Q,


latenteil. Julie 1996 Application film} ilp1'il3, 1905- Sarlel No: 253,548.

To (ti /Z whom it may concern:

' Be it known the-t we, RALPH BAG GALEY, of Pittsburg, Allegheny county, Pennsylvania, CHARLES M. ALLEN of Lo Lo Missoula county, Montana, and EDWARD Wit-Lulu LiNems'r, of *Cfl'iicage, Cook county; llliiiois, have inveni il anew and. useful lvietiiod oi Utilizthe Volatile fort-i011 of Suliid and exact ilesciiptien.

No drawings as uirecl to illustrate our present invent' us, because the art may be practiced. in various forms of apparatus such, for instance, in converters of all the many designs.

, The object of: our invention. is to make it pcssible to utilize in tlie and. especially as a means 035 eliminating the use oi czubm zieceous fuel in the tresti'nont of ores or in greetly reducing the percentages of cerbouw eeous iu el tlmtit is nowlounzl necessary to use the treatment of many ores tbevoletile-fuel constituents that are contained in suliid ores of all kinds, zuui more particularly in what are culled"bisuliid ores. We accomplish this result by uielting sucli 01' -33 or, in other Words, by dissolving them While they are submerged in 2 bath of molten matte, 2111c while the ore is 'ioetiug on top of the matte, its in our prlmm! converter described in moplicetion Sefl 1 No. 2%,677, .filed February l, 1905, we iiitroduce a, light blast of air at or just above the if iolteiu bath in suliicieiit tlil fiillllll oxidize all of the vols lo portion, which cam. be steal and detenniuetl by the color of the flame at the mouth of, the conver $0 is a colorless gas, while S0,, in contact with etmosp'lieric air is it voluminous white smoke resembling escaping steem in its color,

Wile/re sullurous fumes that have not been fully oxidized come in contact with lree air at :t temperature at or above 270 ceutigmdo, they burn with a blue flame, as is always noted in present copper-couverter The object of this invention is to utilize such fumes by supplying the air fox. their combustion at point within the converter Where the heat so proii'iweil can util' and the amount cl air thus required can be "'eceusatoly determined. by the opera,

geses and adding more air as long; as tlieie is a blue flame escaping end not increasing the cinount of free air materially beyeucl this noint, since to do so would chill the gases and impair the Working of the piece To those not fully conversant em"; supper inettes it might appear t object ceuld. attained by fen: \g into the converter tlirou 11 the iR-7y(%l'5; this has not been feuiiui t0 true in tice, (Tm. the contrary, the increase a PIOdllGQS one of two conditions. it either eccomplislies the converting in less time, or chills the charge, accordingly as it combines with the sulfur and iron or Besides, it requires a, heavy pressure t0 form 1' tlirci b. the imitte, Willifi as we use the 2 blast it is only necessary t0 give suilicient pressu to overcome the gas-pressure in the couverter above the cl1m'ge,wliich is very slight and can. be governed by the size of the opening usee for the gas-escape.

By this method We secure t bustion of all the sulfur the simply Observing the color of? tlie ese'quughe perfect com '11 we volatilize,

whether the volutilizetion has been produced by's'ubmergeuee of the 02 or my floating it on the urlece of molten. matte, uuzl we secure this combustion at a point Wl'iere We can use it to augment the interuul heat of the couveiter or smelting-furnace. l Ve accomplish this in e manner Liiilerent from any motluui new i1: use.

' iittontioiii is culled to the loot tluit tl 1e iron, copper, and other Elliilllliii in the matte which is a monosuliid, are :tlrezuiy saturated with sulfur. We (lo not alter this eombimitiou; but, iustczul of allowing the volatile atoll). from. the ore smelteil with the mathv to escape 21,15 Bull r, we cause it to combine with two parts of oxygen and thus Le form kit}, This combination produces hoot, wit" mere Volatiliza-tionof the sulfur, uuco: billfiii as oxicl of sulfur, does not produce :w:-iil-- able llclZL-iu fl'liere this atom of sulfur is set free above the fusion zone of the furnace, us the case i n all shaft lui'uucesvoil; in which an ore-coluum is used, the volatile atom is not burned; but it is evaporated, so te speak, because 0i u leek of sullicie'ut temp 'ure for burning it at the time it is free.

i: em

' oxygen Wilinot combine eo ordinary imiipep atoms, but only after a euificien sly high temperature has been pro 'luced to cause them to Afterward the eel; of this union pro-- doses sufieieiib heat to cause successive edditioiis oi carbon to rise to the jempei'otuio whei'e can uiiiie i ii the oxygen of the eii. in this way iiie may be kept ed infinimm with either 01'' carbon, as described above. it is essenziei, iioivevei, that the iemoeiuture must be equal to the ignition point of the elemenfis under considemoioo. Sulfide oi the metals fuse oi; as temoereture of irom 1,000" to 1,500 centigrecle, enciishe lirsc esom oi sulfur in disulffids disfiiis at a temperature for below the degree of heat necessary to produce'fusion. Our invention lies in the foot that We by sub me'rsion release volatile atom beneath or in contest with a molten both hea ing tempemture aoove Elia-(e which is actually required to eii'ect this combination and introeiuce sleeve the both a supplemeniery blast of air, as smtedebove. lilies been proven in.- our Work that the utilization of the midi- .tionel heat from the oxidation of thie voletiie atom not only enobles us to treat more highly silicious ores wiehout the use of cer boneceous fuel, but also accelerates the smelting; action, so that We are able no repel-i "from actual test that We have emelteii such charges in. e converter l the el ove-described conditions in mono iess time than can by all pi'esenb methods in which U'liis volatile elzom is lost.

In all present 'orms oi pyi-itic smelting tlie blast-foresee is resorteil {10 by experimontei's. The inevitable result of this is feilui'e to smelt client oerboneeeous fuel for man 5? among wiiioii may the fuel at 1 L' I so. ZS she e matte, eio 'i'ing 2m:

'- e well liiioxim feet chmwinged, e ,lius lost in? nece is reached. If ti ,ores mule treefi5- meet silieieosfiiiie i emieis e, isotloleso i'iecess to "Kiel; eniere "elie iii 3C6, enormous loss oi soliiir 30935581., the ore ch /oozed, the smelting prceess can be "e to o 5% a, he; oles'iz, .fotl Wi. e s i successfully oeilizefi iilfii, iii ow: present HIVQYLEIXOH, ores oi; ii'meli more Slii i s nature can be successfully omeized, e21 iiely without theme of e lioi blast and eneireiy Without carbonaceous. fuel. In (301% ducting e series of experiments in this new method of treating ores without Gtiil3031&- ceeus fuel we have ioumi thei'we can. sue coss przi'ctiee tl'iis art, and. we time "iciqlv and. ohm-ply reiluce OlGS QVQB. of e ig'il silicious nature Without cai'boneceous fuel. We have found ouiexperimeiite that We are enabled 5o accomplish this result through u 'iliz e Vasily greater percentage i "4i l-ie ores time has eves? eecl before or tile-ii it is possible to present HLBi-hOKi Of smeii'iog where one l) est-furnace is used. iii 'oeliei e," uniesei'esult oio T'FBXPQIF- ments that we can accomplish results 1'11 2;,

converter such, for instance, as treating highly siiicious ores wilioui, cerboneceoue fuel-thet cannot be successfully access: plisliecliiicblest-iumece This mealioil of uf'iiizing atoms eonmiiieli in euliid ores eml We claim. it dificrswifi present practice and from any pieceice has existed in the pest T e claim- I 1 l. The method; oi etilisiiig the 'voieuile the rolei-ile fiiel 1s oioeoly new, eiy any sists in feeding the 01'6 ini'ao 9, body oi mole-en matte, blowing on m ne the matte, end Wluie .the ore is float ng 1n the matte inti'ociueing e vSuppleiiien sei'g biELS'i? oielii int-o she converter ,L

ebove the molten 1mm, sfiiljsteniieliy es lie--- erilieii.

soificl ores v ere mic is 'eooy oi mo 111w tliemetie, and

mile the OiQ- ilosmm' in iii'e matte ieibrorliicitog t of lair int-o *eoe 'QOKTVQTi/QB ette, eiicl regulating elie no G3-Cimcie 1'5.

l ores I Hill? use, v oeioie some o4 fusion in the fin q l .1" i

even. w present ole- M" iv, 1. V T 1w 1' melee iii ulie oiee iieciei treatment Moore e;

v 5 me are flaming in the: matts iniroducing a 322,213 333.31% methad ofutilizing the Volatile- In testimony wherec'f We have hermmte 1'0 fuel aozisfiiinnent of suifid ares which consists at our hands;



is we ore mto a body 0?? molten Wing air lpio the matte, and while iementar Mast 0? air into the converter moitanmataa, and at the plaae of t'loabing one therewith; sub-- isjtibeni "(.1tnessQs:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2596100 *Feb 11, 1948May 13, 1952Penarroya Miniere MetallObtention of metallic antimony
US6248301 *Mar 17, 1997Jun 19, 2001Newmont Mining Corporation And Newmont Gold CompanyProcess for treating ore having recoverable metal values including arsenic containing components
Cooperative ClassificationC22B1/02