难选金矿细菌预处理技术理论与实践

论述了预处理难选金矿细菌的种类、来源，浸出机理，浸出工艺及工业应用实践．归纳介绍了强化难选金矿细菌浸出的措施．     

黄土类土渗透溶滤变形机制及影响因素

通过对河南省黄土类土渗透溶滤变形机理的研究 ,阐明黄土类土渗透溶滤变形与土中易溶盐含量等因素的关系。黄土类土溶滤变形实质上是由于环境水对土中易溶盐淋滤而产生的变形。     

提高池浸提金浸出率的几个技术要领

简单阐述了池浸提金的基本原理，着重阐述了氰化物的选择、氰化物浓度、浸出液酸碱度、环境温度等因素对浸出率的影响。     

杂卤石中钾的提取工艺

以四川渠县农乐杂卤石为原料，进行溶浸实验，并确定了最佳溶浸条件，实验表明，当溶浸剂质量分数为5％，固液比为1：4，在温度为40摄氏度条件下，溶浸10h，钾的浸出率可达95％以上，通过蒸发实验考察了溶浸液中钾的收率及钙，镁的去除率，并提出了从杂卤石中提取K2SO4的工艺方法，为我国深层杂卤石矿资源的开发利用提出了一条新的途径。     

两种方法提取丢糟中酯类成分的比较研究

采用CO2超临界萃取法和60％酒精热浸提法提取丢糟中的酯类物质,气相色谱分析结果表明：①两种方法均未能提取丢糟中的乙酸乙酯;②CO2超临界萃取法能够提取丢糟中的乳酸乙酯、己酸乙酯、丁酸乙酯和戊酸乙酯,而酒精热浸提法只能提取出乳酸乙酯和戊酸乙酯,且后者乳酸乙酯的含量达275．9285mg／100g,远远超过了前者的11．8955mg／100g。因此,提取丢糟中主要酯类成分,CO2超临界萃取法优于60％（v／v）酒精热浸提法。     

浸提法提取胶母糖中铅的测定方法

通过采用硝酸过氧化氢过夜浸提改进胶母糖样品中测定铅的前处理方法,基体干扰少,三水平加标回收率在95.2%～110.3%,8次重复测定的变异系数为1.8%,与国家标准方法比较,采用t检验法分析,结果无显著性差异.     

Leaching behavior of butanedionedioxime as gold ligand

1　ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｒｅａｒｅｔｗｏｔｙｐｅｓｏｆｏｒｂｉｔａｌｓｉｎｏｕｔｅｒｅｌｅｃｔｒｏｎｏｒｂｉｔａｌｓｏｆｇｏｌｄａｎｄｉｔｓｌｉｘｉｖｉａｎｔｓ[1,2 ] .ＯｎｅｉｓｃａｌｌｅｄＨＯＥＯ(ｈｉｇｈｅｒｏｃｃｕｐｉｅｄｅｌｅｃｔｒｏｎｉｃｏｒｂｉｔａｌｓ) ,ｓｕｃｈａｓπ ｔｙｐｅＨＯＥＯｏｆｂｏｔｈ 5ｄ2(ｘ2 -ｙ2 ) ａｎｄ 5ｄ2ｚｏｆｇｏｌｄ ,ａｎｄσ ｔｙｐｅＨＯＥＯｏｆσ22 ｐｘｏｆｃｙａｎｉｄｅ;ａｎｄａｎｏｔｈｅｒｃａｌｌｅｄＬＵＥＯ(ｌｏｗｅｒｕｎｏｃｃｕｐｉｅｄｅｌｅｃｔ…     

Thermophilic and mesophilic temperature phase anaerobic co-digestion (TPAcD) compared with single-stage co-digestion of sewage sludge and sugar beet pulp lixiviation

The performance of temperature phase anaerobic co-digestion (TPAcD) for sewage sludge and sugar beet pulp lixiviation (using the process of exchanging the digesting substrate between spatially separated thermophilic and mesophilic digesters) was tested and compared to both single-stage mesophilic and thermophilic anaerobic co-digestion. Two Hydraulic Retention Times (HRT) were studied in the thermophilic stage of anaerobic digestion in two temperature phases, maintaining the optimum time of the mesophilic stage at 10 days, obtained as such in single-stage anaerobic co-digestion. In this way, we obtained the advantages of both temperature regimes.Volatile solids removal efficiency from the TPAcD system depended on the sludge exchange rate, but fell within the 72.6–64.6% range. This was higher than the value of 46.8% obtained with single-stage thermophilic digestion and that of 40.5% obtained with mesophilic digestion. The specific methane yield was 424–468 ml CH₄ per gram of volatile solids removed, similar to that of single-stage mesophilic anaerobic digestion. The increase in microbial activity inside the reactor was directly proportional to the organic loading rate (OLR) (or inversely proportional to the HRT) and inversely proportional to the size of the microbial population in single-stage anaerobic co-digestion systems.     

煤的微生物浸出脱硫技术

文章介绍了煤的微生物脱硫技术及其研究状况,阐述浸出法脱硫工艺,指出存在的问题,并探讨了其应用前景。     

绿茶酒的研制

采用绿茶、60度优质口子酒、蔗糖、柠檬酸、Vc等为原辅料研制生产绿茶酒，工艺包括研磨、浸提、过滤、勾兑和杀菌。茶叶研磨径粒0．246mm为宜；浸提按料液比1：20加入纯净水，微波处理2次，每次3min，再用50℃水浴浸提1次10min，荼多酚浸出率达90％以上；选用400目滤布过滤；将60度优质口子酒降废至22度与茶汁勾兑；杀菌条件60℃22min与茶汁勾兑。