從高鐵閃鋅礦的高壓酸浸渣中提取硫磺

1、昆明理工大學碩士學位論文從高鐵閃鋅礦的高壓酸浸渣中提取硫磺姓名：魯順利申請學位級別：碩士專業(yè)：有色金屬冶金指導教師：朱云20050508墨塑翌三查蘭堡主堂壘絲壅塑蔓AbstractTheresourcesofzincconcentrateswithhighcontentofironwidelydistributeinourcountryTheavailablereservesofwhichis7xl06tonsinYunnanProvi

2、nce，whichoccupies113ofYunnanreservesUptOnow，thereisnoenterpriseandtechnologytotreatthemseparatelyYunnanmetallurgygrouphasindependentlydevelopedthetechnologyofpressureleachingtotreatthisconcentratesThetopichowtoextractsul

3、furfromsulfurresiduesaftertreatmentzincsulfideconcentrateswithhighcontentofironthroughthemethodofleachingdevelopedbyYunnanmetallurgygroupIfoundtherearetwomethodsofrecoveryofsulfurfromsulfurresiduesaftersearchingofdocumen

4、ts，oneisphysicalmethodas：pressuredecantation，hightemperaturefiltration，fioatation，formingofpelletssieving，vacuumdistillationTheotherischemicalmethodwhichextractsulfurbythesolventofdimethylbenzene，perchlorethylene，ammoniu

5、msulfide，coaloilkeroseneandtheotherThesulfurresiduecontains6106％ofsulfurmostofwhichexistaselementarysubstance(80％)alittleexistascompoundThemethodofextractingsulfurbythesolventofammoniumsulfideandatmosphericdistillationar

6、echosenforthetestaftercomparisontheadvantagesanddisadvantagesofdifferentmethodsofextractionsulfurfromsulfurresiduesandconsiderationofcompositionandcomponentsofsulfurresiduesThetestofextractingsulfurbythesolventofammonium

7、sulfideindicatesthatdissolvingreactionisveryfast，itiseasytOcontrolandoperateButthesolventofammoniumsulfidealsocandissolveAu，Pt，sulfideandothersubstanceThosesubstanceremaininsulfurproductwhenthesolutioniSheatedthisWilIcau

8、sethelossofpreciousmetalandthepurityofsulfurislowSothesolventofammoniumsulfidecan’tbeusedtotreatsulfurresidueThetestresultofatmosphericdistillationindicatesthatthismethodisveryavailableThetesthascheckedtheeffectoftempera