Refractory gold ore is gold - containing ore that is resistant to recovery by direct cyanidation and carbon adsorption processesultra - fine grindingn roasting , pressure oxidation and bio - oxidation , the iron sulphide minerals are oxidisedto createsulphur dioxide

In roasting , pressure oxidation and biooxidation , the iron sulphide minerals are oxidisedto createsulphur dioxide

Sep 1 , 2012 ... are oxidisedto createsulphur dioxide

doktorbe Hydrogen Sulphide , which is what makes sour natural gas poisonous , burnsto createSulphur Dioxide

Dirtcan causesulphur dioxide for people

roastedto createsulphur dioxide

Sulphurbonds with oxygen moleculesto createsulphur dioxide

when sulphur is combustedcreatessulphur - dioxide

the combustion of fossil fuels containing sulphur compounds(passive) Created bySulphur Dioxide

due to the rise in combustion of fossil fuels(passive) is causedSulphur Dioxide in the air

due to the increase in the burning of fossil fuels(passive) are causedsulphur dioxide in the air

the burning of sulphur containing fuels(passive) caused bysulphur dioxide

Coal can also produce Nitrogen oxides when burnt ,causessulphur dioxide

It has become the world ’s top emitter of acid - raincausingsulphur dioxide

the world 's top emitter of acid - raincausingsulphur dioxide

power plants & some factories & nitrogen oxide created by vehicle emissions & burning fuel(passive) created bysulphur dioxide

if they burn itwill createSulphur Dioxide

ESA 's Venus Express(passive) discovered bysulphur dioxide

Steam coal with high sulphur contentcausessulphur dioxide

satellite 16.7.2016(passive) discovered bysulphur dioxide

burning coal or oil(passive) 's created bysulphur dioxide

The hardline “ natural ” wine movement ’s decision to abjurehas ledsulphur dioxide