Teh G H, Schwartz W, Amstutz G C
Z Allg Mikrobiol. 1981;21(2):157-67. doi: 10.1002/jobm.3630210211.
Laboratory investigations confirm that it is possible to leach tin from synthetic minerals like stannite, kesterite, stannoidite, herzenbergite, ottemannite and berndtite, and from natural tin minerals which include stannite, cassiterite and varlamoffite, in the presence of Thiobacillus ferrooxidans, and with organic agents of biological origin, especially oxalic acid and oxalic-citric acids mixture. Over a leaching period of 35 days with 0.5% pulp density, initial pH of 2.5, using minus 0.16 mm size fraction at 32 degree C, as much as 54.45, 72.66, 97.13, and 31.30% Sn were extracted from synthetic stannite, kesterite, stannoidite and natural stannite, respectively. Varlamoffite, found in the dried, leached residues of the tin sulphides, provides evidence that bacterial action can be responsible for the genesis of supergene varlamoffite.
实验室研究证实，在氧化亚铁硫杆菌存在的情况下，以及在生物源有机试剂（尤其是草酸和草酸 - 柠檬酸混合物）的作用下，从合成矿物（如黝锡矿、硫锡铅矿、类锡石、赫氏砷锡矿、奥托曼矿和伯恩特矿）以及天然锡矿物（包括黝锡矿、锡石和瓦尔拉莫夫矿）中浸出锡是可行的。在32℃下，使用粒度小于0.16毫米的物料，矿浆浓度为0.5%，初始pH值为2.5，经过35天的浸出期，分别从合成黝锡矿、硫锡铅矿、类锡石和天然黝锡矿中提取了54.45%、72.66%、97.13%和31.30%的锡。在硫化锡的干燥浸出残渣中发现的瓦尔拉莫夫矿，证明细菌作用可能是表生瓦尔拉莫夫矿成因的原因。
