推薦產(chǎn)品
3-(4-chlorophenyl)-4-phenyl-4,5-dihydro-1H-pyrazole 2-(chloromethyl)-3-methylpyridinehydrochloride 1-(2-bromo-4-methylphenyl)ethanone 3-chloroisoquinoline-4-carbonitrile 5,8-dichloropyrido[3,2-d]pyridazine 2-bromomalononitrile 2-(4-(bromomethyl)phenyl)benzo[d]thiazole 1-(bromomethyl)-3-methoxy-2-nitrobenzene 6-bromo-1H-[1,2,3]triazolo[4,5-b]pyridine 4-iodo-2-((trimethylsilyloxy)methyl)thiazole 6-iodoimidazo[1,2-a]pyridine-3-carbonitrile 2-(4-chlorophenyl)-2-morpholinoacetonitrile 4-chloro-7H-pyrrolo[2,3-d]pyrimidine 4-chloroisothiazole 5-bromo-6-chloro-1H-indole 7-chloro-3H-imidazo[4,5-b]pyridine ethyl3-(4-formylphenyl)propanoate 2,3-dibromobenzaldehyde 1-(5H-chromeno[2,3-b]pyridin-7-yl)ethanone 5H-chromeno[2,3-b]pyridin-5-one 3-chloroisoquinoline-4-carbaldehyde (E)-2-(3-oxoprop-1-enyl)benzaldehyde methyl4-formyl-3-nitrobenzoate 5,6-dimethoxy-2,2-dimethyl-2,3-dihydro-1H-inden-1-one 1-methylbicyclo[4.1.0]heptan-3-one 3-nitro-4-(trifluoromethoxy)benzaldehyde 2-hydroxyquinoline-6-carbaldehyde 2-nitro-3-(trifluoromethyl)benzaldehyde 1-(2-fluoro-4-methoxyphenyl)propan-2-one tert-butyl3-fluoro-4-oxopiperidine-1-carboxylate tert-butyl3-oxopropylcarbamate 2,2-dimethylcyclohexanone 9H-carbazole-3-carbaldehyde N,N-dimethyl-2-oxoacetamide 2-methylpent-4-yn-2-ol 3-tert-butyl-4-hydroxybenzonitrile 4-bromo-2-tert-butylphenol 1,3-dibutoxypropan-2-ol methyl4-hydroxyquinoline-6-carboxylate methyl3-cyano-4-hydroxybenzoate 4-chloro-6-methoxyquinolin-7-ol 3,4-dihydro-2H-benzo[b][1,4]oxazin-7-ol 2-(2-aminothiazol-5-yl)ethanolhydrochloride (R)-ethyl2-chloropropanoate (S)-4-amino-5-(4,4-dimethylcyclohexylamino)-5-oxopentanoicacid (1s,4s)-4-hydroxycyclohexanecarboxylicacid (S)-2-(tetrahydrofuran-3-yloxy)aceticacid (1S,4R)-1-methyl-4-(prop-1-en-2-yl)cyclohex-2-enol (R)-4-(hydroxymethyl)oxazolidin-2-one (S)-4-(hydroxymethyl)oxazolidin-2-one 化工資訊 收集煙氣中99%以上二氧化硫制成硫酸，讓二氧化硫排放幾乎為零
近日，國內(nèi)第一條脆硫鉛銻礦“底吹+側(cè)吹+煙化”三連爐生產(chǎn)線，在河池市工業(yè)園區(qū)大任產(chǎn)業(yè)園生富冶煉有限責任公司投產(chǎn)運行。該生產(chǎn)線收集煙氣中99%以上二氧化硫制成硫酸，讓二氧化硫排放幾乎為零。
據(jù)了解，如何控制脆硫鉛銻礦冶煉低硫制酸，一直是困擾行業(yè)發(fā)展的最大難題。傳統(tǒng)工藝主要采用燒結(jié)鼓風爐冶煉，產(chǎn)生的二氧化硫濃度不到3%，生產(chǎn)硫酸則需濃度6%以上。使用大量石灰處理二氧化硫，不僅無法控制二氧化硫外排，而且還會產(chǎn)生新的硫酸鈣固廢。
據(jù)介紹，“氧氣底吹熔煉-側(cè)吹熔融還原-富氧揮發(fā)”三連富氧連續(xù)熔池熔煉工藝，是目前世界上先進的冶煉脆硫鉛銻礦和含銻廢渣工藝。該工藝成功運用于生產(chǎn)線，在國內(nèi)尚屬首次，將對全國鉛銻冶煉行業(yè)發(fā)展起到很大推動作用。(記者/廖慶凌）
