SU655648A1 - Method of obtaining univalent copper sulfide - Google Patents

Description

npwecc is delayed, and the resulting product (along with) contains {1Т and CuS, i.e. not single phase.,

The method has been tested on a laboratory scale and is confirmed by the following examples.

Example 1. In 600 ml of a solution of blue vitriol containing 74 g / l of copper and 10 g / l of HbSp, 91 g of Na ,, S salt containing 92% of the active substance are added. The resulting pulp is poured into an autoclave with a capacity of 1L, U

heated before and processes with overmaking for 1.5 h at this temperature. After the experiment, the pulp is filtered under vacuum, and then watered with water. The precipitate obtained is dried at 15 and analyzed for sulphate sulfur and Na. Phase composition; of the obtained sulfide is determined by X-ray method on the device URS 50-IM.20

Example 2. A pulp of the indicated composition (Example 1) is treated for 1.5 hours at 140 ° C. The precipitated sulphide along with digenite (), durleite (Si.-j.S) contains covellin (CuS).

Example 3. When processing pulp containing 74 g / l Cu, 5.8 g / l and 91 g 9N.O / 600 ml,. solution, for 1.5 hours, a product containing an increased amount of durleite is obtained, with the formation of basic salts of metsi noted.

Example 4. Pulp (74 g / l Cu, 15 g / l, 91 g NagS 9HgO per 600 ml of solution) is treated in an autoclave for 1.5 hours. A single-phase product is obtained, only digenite ().

Characteristics of the products obtained are given in the table.

0.140.21 Digenite

0,340,30 Digenite, durleite

 insignificant

0,120,25 | Egenite, durleite

0,090,21 Digenit

In fact, the preparation method allows to obtain a sufficiently pure and practically single-phase monovalent copper sulfide, responding to the structure of digite ()

Claims (2)

1. The method of producing single-copper copper sulphide, including the interaction of reagents at elevated temperature, and the fact that, t is the disturbance of the process and the covellin For the single-phase product, the copper sulfate solution and alkali metal sulfide are subjected to interaction at 160-IBO C and the initial acidity of the solution is 10-15 g / l. 2. A method according to claim 1, characterized in that the alkali metal sulphide is introduced in an amount of 0.5 g / mol per 1 g / mol of copper in solution. Sources of information taken into account in the examination 1. Guidelines for preparative inorganic chemistry, ed. G. Brouwer, 1956, p. 473.