SU1224348A1 - Method of extracting manganese from ores - Google Patents

Description

i

This invention relates to biotechnology and can be used to extract manganese from manganese ore.

The aim of the invention is to increase the speed of the process and its reduction.

Example 1. In a conical installation, with a volume of 1 l was placed 300 ml of medium (0.05% ammonium sulphate,

From tab. As can be seen in Figure 1, psilomela ores are leaching at a lower rate than pyrolusite. The mixture of these ores is recovered at a rate 2.1 times greater than psilomelane ores. If it is accepted that leaching of the ore of the canoda from them is leached at an inherent rate, then the average calculated leaching rate of the mixture should be 0.655 g / l per day. The experimentally obtained rate (0.957) is 1.46 times higher, i.e. joint leaching of psilomelane and pyrolusite ores increases the process speed by 46%. The experimental leaching rate of psilomel ores in this mixture, calculated by the formula

 V

V,

pyrolusite

psilomenal

is 1.056 g / l per day, which exceeds the rate of alkalization of chi2243482

3% glucose) and 7.5 g of ore. Two types of ores with only psilomelan and only pyrolusite are taken into experience. The funnels are seeded Achromobacter

5 delicatulus 182A. The process was carried out at 22–25 ° C, with constant stirring and changing the medium once every 2–3 days. The duration of the experiment 12 days. In tab. 1 presents data on

10 speeds and completeness of the leaching process ..

Table 1

psilemenal ore joint 2.1 times ..

Consequently, the conduct of the process of elevating the leaching of psilomelanic ores in the presence of pyroluaite provides an increase in the leaching rate of psilomelanic ores by more than 2 times. In this case, the glucose consumption remains the same as in the leaching of pure psilomelanic ores. Thus, when leaching a mixture of psilomelanic and pyrolusite ores, the consumption of glucose decreases according to an increase in the leaching rate. Example 2. Conditions of the experiment, as in example 1, cylindrical vessels, working volume 100 ml, mixing on a rocking chair, the duration of the experiment 10 days. In the experience taken, manganese ores containing one

manganese mineral (manganite or pyrolusite) or a sample composed of a mixture of these ores. Data characterizing the process are presented in table 2.

The results indicate that the low leaching rate of manganite ores increases 2.5 times when they are leached together with pyrolusite ores. The average rate of leaching of the mixture is, and the experimental one is 1.44 times more. Thus, when using the proposed method, the rate of manganese extraction from psilomelanic ores is increased by 2.1 times, from manganite ores - by 2.5 times, the duration of the joint is reduced by 44-46%.

Editor N. Shvyschka

Mr. G. Melnikova

Techred H.BoHKaj o Corrector M.Demchik

Order 1892/25 Circulation 567 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PIP Patent, Uzhgorod, st. Project, 4

1224348

table 2

the alkalization of psilomelane-pyrolusite and manganite-pyrolusite associations,

At the same time, the increase in the speed of the leaching process of psilomelanic and manganite ores (2.1-2.5 times) reduces the cost of nutrient media for the cultivation of bacteria, reduces the production cycle, equipment occupancy, as well as electrical energy consumption for aeration and mixing. In addition, the consumption of working time is reduced by 2.1-2.5 times.

Claims (1)

METHOD FOR EXTRACTION OF MANGANESE FROM ORES, mainly from psilomelanic and manganite by bacterial leaching with Achromobacter delicatulus 182A strain in a medium containing a source of nitrogen and carbon, characterized in that, in order to increase the speed of the process and reduce its cost, leaching is carried out in the presence of pyrolusite. © from. Yu b 4 "b CO 4 · * 00>