SU30734A1 - Method of making paste electrolyte for dry cells - Google Patents

Description

The method for preparing a pasty electrolyte according to the invention consists in that, in order to avoid its delamination in the elements, the prepared raw mixture of starchy substances about electrolyte is preliminarily maintained for welding before several days. The electrolyte is prepared for the total agglomerate mass and for the paste, in addition to it, in addition to NH4CI, calcium chloride, zinc chloride, sodium chloride, glycerin, sublimate, powdered sugar or sand, and other additives commonly used in the manufacture of dry cell electrolyte. Components of the electrolyte can be quite diverse, for example, a solution of NH4C1 can be taken in the range from 6 ° to 11 ° according to Bome; It is possible to introduce, as already mentioned, zinc chloride, calcium chloride, replacing one with another or magnesium chloride. The addition of sodium chloride is also desirable. Additives can be administered in varying amounts, for example, glycerin can be administered, starting from small doses up to 25 g per i of the electrolyte, and mercuric chloride from 0.1 g to 1 g per 1 kg. To manufacture a paste on this electrolyte for 550 parts by weight of the electrolyte, you can take no more than 120 volts. h. wheat flour, as is usually done, but only 40, replace the rest

its amount is 15 c. including potato and 5 in. including wheat starch.

The above ratios, according to the data of the reader, give the most favorable results.

Production of the elements is as follows: prepare 60 kg of ammonia solution 10 ° Bome or 25.5 / o solution separately in 10 kg of water dissolve 5 kz zinc chloride and 5 kg of calcium chloride and merge together with the solution of ammonia. Then, 1 kg of sodium chloride, 0.5 kg of technical glycerin, 200 g of powdered sugar or granulated sugar and 50 g of mercuric chloride, separately dissolved in 0.5 kg of water, are added to the solution. Then the whole mixture is well mixed.

The resulting electrolyte moistens the agglomerate mass and compresses the agglomerates. The agglomerates are made of the usual size, in the usual ratio of manganese ore and graphite, or in a different proportion, from 1: 1 to 1: 7, depending on the quality of the latter, and dried at a temperature of 70 ° to 120.

The paste is prepared on the same electrolyte. At 90 kg of e / Ltrolit, 40 "g of wheat flour, usually consumed for this purpose, are taken and stirred until homogeneous, then another 200 kg of electrolyte is added and left to stand for a week. After this period, take 60 sg of electrolyte, stir in it 15 kg of potato and 5 kg of wheat starch until homogeneous and, adding “more than 200 kg of electrolyte, mix thoroughly with the first, just a week; then all together are left standing for more than 10 days. Wheat starch can be completely replaced with potato in the same quantity. After ten days, the finished paste is once again thoroughly mixed and filled with elements. As a result of keeping the paste for a specified period, the sleep acquires the property of not being stratified for a long time, i.e. starch substances do not settle to the bottom; At the same time, the elasticity of the mass itself increases, which contributes to an increase in the capacity of the elements. The finished paste can be charged

elements in zinc cups, preferably in hot water in baths, .or paste can be pre-cooked, and then laid in the elements. In the latter case, it is necessary to add another 100 kg of electrolyte, otherwise the paste will be very thick.

The subject matter of the invention.

A method of preparing a pasty electrolyte for dry cells, characterized in that, in order to prevent the exfoliation of the finished paste in the elements and to preserve its elasticity, the prepared raw mixture of starchy substances with electrolyte is pre-conditioned for several days before welding, then mixed and used to fill it items.