本文關(guān)鍵詞： β-甲基萘醌 三氧化二鉻 葡萄糖　出處：《無機鹽工業(yè)》2017年12期 　論文類型：期刊論文

【摘要】：β-甲基萘醌生產(chǎn)過程產(chǎn)生大量含鉻廢液,傳統(tǒng)方法是將其制成鉻粉,但由于鉻粉市場疲軟因而限制了該方法的生產(chǎn),同時影響了β-甲基萘醌的生產(chǎn)。研究了β-甲基萘醌廢液制備氧化鉻綠的工藝,主要包括還原、除酸、洗滌、煅燒等工序,對比了還原劑加入量、除酸量、洗滌次數(shù)對產(chǎn)品質(zhì)量及成本的影響。結(jié)果表明:β-甲基萘醌廢液與葡萄糖在110℃反應(yīng),用氧化鈣除酸至p H=3,所得氫氧化鉻經(jīng)7次洗滌再經(jīng)煅燒,制得的氧化鉻綠產(chǎn)品三氧化二鉻質(zhì)量分?jǐn)?shù)99%,其余各項指標(biāo)均符合GB/T 20785—2006《氧化鉻綠顏料》的要求。
[Abstract]:A large amount of chromium-containing waste liquid is produced during the production of 尾 -methylnaphthoquinone. The traditional method is to make chromium powder, but the market of chromium powder is weak, which limits the production of this method. At the same time, the production of 尾 -methylnaphthoquinone was affected. The process of preparing chromium oxide green from 尾 -methylnaphthoquinone waste liquid was studied, including reduction, acid removal, washing, calcining and so on. The amount of reducing agent and acid removal were compared. The effect of washing times on product quality and cost. The results showed that 尾 -methylnaphthoquinone waste liquor reacted with glucose at 110 鈩，

本文編號：1486757