某地砂金煤金团聚提金试研究

探讨了煤金团聚提取砂金过程中的影响因素，并获得了金回收率达９５．５３％，富集比达２３００倍的较好指标。阐述了煤金团聚提金工艺是可以取代混汞，氰化的无毒提金工艺。     

富氧浸出机理及其在氰化提金中的应用

简述了金氰化学反应和氧在金氰化浸出中的重要作用，论述了富氧浸金机理及其在氰化提金中的应用。研究资料表明，利用富氧浸出，可提高金溶解速度和显著提高金浸出率，并能增加浸出设备的生产能力。由于缩短浸出时间，从而降低氰化物单耗量。     

表面活性剂对金属置换硫脲金络离子溶液中金的影响

研究了表面活性剂对从酸性硫脲金（Au(Tu)2^ )溶液中金属还原置换金的影响。少量表面活性剂对金还原过程有明显的促进使用，可使金的置换率显著提高。实验筛选出了十二烷基硫酸钠（SLS）铝粉还原体系，金的置换率达99%，提出了一种在低浓度硫脲金溶液中，深度置换回收金的方法。     

搅拌磨机械化学氰化浸金新工艺的研究

研究了搅拌磨机械化学氰化的浸金工艺，考察了磨矿细度、液固比、氰化钠用量和助浸剂对金浸出率的影响。结果表明，与常规氰化浸金工艺相比，机械化学氰化浸金大大缩短浸出时间，降低氰化钠用量６０％，金浸出率提高１０％，效果十分显著。     

硫脲提金技术发展现状

介绍了硫脲提金技术发展现状，主要介绍了硫脲提金原理、矿石预处理方法、从硫脲浸出液中回收金的方法，也介绍了提高硫脲提金效率的可行性方法及硫脲提金技术的发展趋势。     

金红石选矿工艺取得突破性进展

金红石选矿工艺取得突破性进展河南西峡金红石矿是近几年来新发现的特大型金红石矿床。为开发金红石矿，当地于１９８７年和１９８８年先后投入５００多万元兴建了三座金红石选矿厂。但由于该金红石矿矿物组成复杂，金红石嵌布粒度细，分选难度大，工艺研究不过关，致使建...     

氨性硫代硫酸盐对提高低品位金浸出率的试验研究

本文叙述了一种浸金的浸出剂－氨性硫代硫酸盐，并讨论了其药剂浸金的作用机理，通过试验验证了其浸出剂对金的浸出效果良好，其金浸出率达到９５％以上。     

含碳高砷型难浸金精矿细菌氧化试验研究

广东省某含碳高砷型难浸金精矿，常规氰化金浸出率仅为15．02％，通过采用细菌氧化技术，使硫化物包裹金暴露或解离，吸附金的有机碳被钝化，金浸出率达到94．41％，获得了较理想的试验研究结果。     

金精矿无氰提金新工艺的研究

本文针对浮选金精矿提出了一个无氰提金新方法。该法将金精矿进行焙烧回收硫，然后采用氯化钠＋溴水浸取金，浸取的贵液控制盐酸酸度为１０％，利用泡沫料吸附金，金的回收率在９９％以上。新工艺方法具有操作简单，成本低，周期短，回收率高，不污染环境，对于乡镇企业开发黄金生产具有很好的经济和社会效益。     

SK-106树脂在氰化提金中的应用研究

研究了SK－106树脂在氰化浸金溶液中对金的吸附速率，吸附容量，吸附等温线，载金树脂的解吸，用SK－GSR试剂从解吸液中提取金。     

Treatment of pemphigus with gold

BACKGROUND: Although gold has been reported to be useful in treating pemphigus vulgaris, its use has waned in recent years because of concerns regarding efficacy and toxicity. OBJECTIVE: To review 26 patients with pemphigus who were treated with intramuscular gold over a 10-year period. RESULTS: Gold was effective in 62% of patients as a primary treatment for pemphigus or as a steroid-sparing agent. An average of 3 months of therapy was required before the daily prednisone dosage could be halved. Four patients were free of disease and stopped receiving all therapy at the conclusion of the study. Toxic effects due to gold therapy developed in 42% of patients and all adverse effects resolved with its cessation. CONCLUSIONS: While toxic effects limit the use of gold in many patients with pemphigus, it may be effective in treating a large percentage of patients who otherwise are unable to reduce their steroid requirement. Because of its delayed onset of action, patients treated with gold usually require systemic steroids when therapy is initiated. Controlled, prospective trials are needed to further evaluate the efficacy of gold and its potential steroid-sparing effects.     

Contact allergy to gold and gold therapy in patients with rheumatoid arthritis

Patients with rheumatoid arthritis were investigated for contact allergy to gold in connection with treatment with gold preparations. There were 57 patients with rheumatoid arthritis previously treated with gold, with or without cutaneous side-effects, as well as 20 patients intended for such treatment; all were exposed to patch and intradermal tests with gold sodium thiosulfate, gold sodium thiomalate and auranofin. Contact allergy to gold was demonstrated in 8 out of 77 patients (10.4%). In the retrospective material, gold allergy was found in 1.8%, in the prospective material in 35.0%. Contact allergy to gold is very frequent among patients with rheumatoid arthritis before gold therapy. In order to avoid early hypersensitivity reactions skin tests should be carried out before gold therapy is instituted.     

某难浸金精矿硫脲法浸金试验研究

进行了某富硫高砷金精矿加添加剂CL硫脲浸金试验研究。试验研究结果表明,添加剂CL可以改善硫脲浸金过程,降低浸出所需的硫脲浓度,提高金浸出率,可使该金精矿的金浸出率达到89％以上。试验还探讨了浸出的最佳条件,并分析了添加剂CL对浸金机理的影响。     

黄金储备变动与黄金货币地位

自黄金非货币化后,各国央行调整黄金储备。其调整的目的分为二类：一类是把黄金作为商品,降低黄金储备量;另一类是充分利用黄金货币作用,使用黄金进口紧缺物资、贷款、偿还债务等。从金融机构调整黄金储备的动机与目的分析,笔者认为大部分央行并非刻意减少黄金储备,而是运用黄金货币职能,调整经济发展。     

从金泥中提金的研究

本文以Ｎａ２Ｏ－Ｂ２Ｏ３－ＳｉＯ２三元系为基本渣型，对金泥的熔炼过程进行了研究。研究结果表明：采用最佳熔剂配比和熔炼制度直接熔炼金泥，可使渣含金降至３０ｇ／ｔ以下，金直收率达９９．８％以上。     

黄金货币性在矿产金供给中的体现

布雷顿森林体系瓦解后，黄金的货币职能被逐渐弱化，取而代之的是以信用作为基础的纸币；然而，在当今国际货币体系不稳定的背景下，黄金的货币性并未完全消失。中通过矿产金供给的基本形式研究，说明了矿产金供给方式的现状和特点，进一步阐述了产生这一现状和特点的原因，从而以矿产金供给的现象来解释黄金货币性存在的事实，并提出了矿产商在实际生产过程中应当注意的问题及解决方式。     

胶东大磨曲家金矿床矿石及金矿物特征

大磨曲家金矿床为破碎带含金蚀变岩型金矿床,其矿石主要为黄铁绢英岩、黄铁绢英岩化碎裂岩、多金属矿化矿石及少量含金石英脉。矿床主要经历热液和表生2个成矿期及5个成矿阶段。主要载金矿物为黄铁矿。金矿物为自然金和银金矿,金的赋存状态为包裹体金、晶隙金、裂隙金,以裂隙金和晶隙金为主,二者占79％;金矿物粒度以中细粒为主,占69％。     

上海居民黄金需求状况调查(续完)

Expanding the demand for gold is of strategic significance after the gold market of China has been opened. Private collection of gold can decrease the risk of national gold reserve, and expanding residential gold demand is useful for the steady economical development and avoids finance adventure, because the nation can buy the gold previously reserved by residents to increase its gold reserve in case of finance crisis. Its efficiency had been proved by the South-East Asia crisis. Based on the investigation data supplied by Shanghai residents, and with the help of econometrics, the paper generalized the present status of private gold consume and investment demand, and analyzed the reasons for insufficient demand so as to find out a new way to develop gold market, promote product innovation and supply a reference for decisionmaking.     

重选法回收某高碳质金矿石中金的试验研究

研究了重选法回收某高碳质金矿石中金的工艺流程.试验采用单一摇床、螺旋溜槽粗选-摇床精选以及旋流器离心脱碳、脱泥-摇床精选3种重选流程,均取得了较好的选别效果.3种流程均可有效富集矿石中的金,回收率可以达到75%～80%,金精矿品位达60～80g/t.