SU745935A1 - Method of producing wine, raw alcohol, forage and calcium tartrate from yeast residues being wastes of wine industry - Google Patents

Description

(54) METHOD FOR GETTING WINE, ALCOHOL AREA, FEED

AND VINO BENDING FROM WINE PRODUCTS

INDUSTRY - YEAST SEDIMENTS

one

The invention relates to the wine industry, in particular to methods for the production of wine, raw alcohol, feed and tartrate lime from the waste of the wine industry - yeast sediments.

A known method of producing tartaric lime (CRI) from yeast sediments by distillation, treatment with soda ash and neutralizing the liquid 1.

There is also known a method for producing wine, crude alcohol, feed and an FRI from the waste of the wine industry — yeast sediments, including extracting wine from yeast sediments, washing them, converting tartaric acid compounds of the mixture to a soluble state, dividing it into liquid and solid phases, distilling liquid phase with obtaining raw alcohol and bards, precipitation and separation from the solution of bards, the FRI and thickening of the solid phase used as feed 2.

However, in a known method, the separation of the solid phase from the liquid is significantly hampered by separation, and the process itself is the most laborious and yields large losses (10-20%) of tartaric acid. The centrate contains many suspended particles (2–5 g / l), which significantly contaminates an ICI, and the tartaric acid content reaches only 40–45%.

The method is time consuming and does not allow the tartaric acid compounds of the five dynyenes to be completely converted into a soluble state, which leads to their loss and a decrease in the quality of the final products. Cooling the mixture to a temperature of 18–20 ° C reduces the solubility of acid-containing compounds in a liquid and promotes the precipitation of crystals on 10 yeast cells (solid phase) and entrainment with yeast during separation.

The aim of the invention is to intensify the process, increase the yield and quality of the final products.

This is achieved in that in the proposed

15, after removing the wine from the Yeast sediments, the posddenier is subjected to additional separation into liquid and solid phases, the transfer of tartaric acid compounds to a soluble state is carried out by treating the mixture with electrolytic alkali to a pH of 5.5-6.0 at a current density of 600-1000 AAi -10 min, and the separation of yeast sediments into liquid and solid phases and the separation of an FRI is carried out by electro-float745935

CII, while before electroflotation, grape flour and surfactants are respectively injected into a mixture of yeast sediments and solution bards, and the solid phase after electroflotation is concentrated under a pressure of 0.4-0.6 Pa.

It is advisable to carry out electroflotation when separating yeast sediments at a current density of 300-600 A / m, and when allocating an ACI - 50-150 A / m for 10-20 minutes.

Grape flour is introduced into the mixture of yeast sediments in the amount of 5-15% to the solid phase with a dispersion of 0.5-1.0 mm.

As surfactants, acrylamide is used in an amount of 10-30 mg / l or gelatin in an amount of 25-50 mg / l of solution.

The proposed method is carried out as follows.

Wine is extracted from yeast sediments as a result of squeezing, after which yeast sediments are additionally divided into solid and liquid phases — wine — by electro-flotation for a 5–10 minute period of being in the electrolyzer at a current density of 300–600 A / m; maintains 5–20 ° C, and adjusts the current density depending on the thickness of the foam layer, the concentration of the particles in the liquid and the flow rate of the mixture and thickens the solid phase under a pressure of 0.4-0.6 Pa on the thickener to obtain an additional amount of wine from P product.

The resulting wine is used in technology.

chloe for, for example, for the preparation of blends.

Condensed mass enters the electrolyzer, where it is shifted with wash water at 15-38 ° C in a ratio of 1: 1 -1: 2 and the mixture is treated with electrolytic alkali in the cathode chamber to pH 5.5-6.0 to transfer tartaric salts acids soluble at a current density of 6001,000 A / m, while the temperature of the mixture is maintained at 20-38 ° C, and to increase the technological parameters of electroflotation and improve the value of the feed, grape flour of dispersion of 0.5-1.0 mm is introduced into the mixture the amount of 5-15% of the solid phase with intensive movement, for example, 5003 000 rpm for 10-20 minutes The mixture is then sent to an electrolytic cell, where the liquid phase is separated from the solid by electroflotation at a current density of 400-600 A / m and a temperature of 15-30 ° C, the solid phase is condensed on the Thickener to extract additional liquid from They are used for further washing.

After that, the second washing and electrolytic alkali treatment is carried out with separation of the liquid phase from the solid and concentration of the latter.

If two washes are not enough for complete extraction of tartaric acid salts from yeast sediments, they are additionally washed and treated with electrolytic alkali and separation of the liquid J from solid phase.

The liquid phase formed during the separation from the second and additional scrubbers are used to dilute the thickened precipitates or mixed with distillation liquid (barda) to obtain a CRI.

0 The liquid from the first washing is sent to the distillation apparatus for distillation, from which the crude alcohol is recycled, and 20 / o-calcium calcium chloride solution is added to the bard at 70-80 ° C, the mixture is cooled to 10-20 ° Dl intense

 Formation of CRI crystals, 25-50 mg / l of gelatin solution or 10-30 mg / l of polyacrylamide are added with vigorous stirring for 10-20 minutes and the resulting mixture is sent to the electrolyzer, where the CRI crystals are separated from the liquid during current flow. 50-150 A / m for a 10-15 minute period of being in the apparatus, and the current density is adjusted depending on the concentration of crystals and the flow velocity of the mixture, as well as on the size of the crystal. Then the separated crystals of the FRI enter the tank, where they are washed with water from gelatin or polyacrylamide at 15–20 ° C, and then they are dried at 100–105 ° C to a residual moisture.

0-,

Separated on the electrolyzer and condensed solid phase is pressed on a press, and from there it is sent for drying, where it is dried at 100-120 ° C to a residual moisture content of 5-10%. The resulting biomass containing valuable nutrients is used as animal feed. Example Liquid wine yeast after straining wine is subjected to electrolytic flotation for 15 minutes at a current density of 500 A / m2 and 20 ° C. Cleaning Effect. Wine undergoes re-electroflotation for 10 minutes at the same current density. The effect of cleaning wine after re-electroflotation 99%. Midday foam product is thickened for 5 minutes.

5 at a pressure of 0.4 Pa. Sediment humidity 62.3%:.

The solid phase, compacted with wine yeast, is washed with hot water at a water ratio of 3: 1 and intensively blended for 5 minutes at 500 rpm. The obtained homogeneous mixture at 38 ° C is treated with an electrolytic alkali in the cathode chamber of the electrolyzer to transfer tartaric acid compounds to a soluble state at a current density of 800 A / m for 10 minutes to a pH of 5.5.

10% of grape flour is added to the mixture with respect to the solid phase with a dispersion of 0.5 mm.

5 min at 500 rpm, and then subjected to electrofloat at a current density of 500 A / m for 8 min. The resulting foam product is concentrated for 5 minutes at a pressure of 0.4 Pas. Condensed sediment has a moisture content of 57.8%. The liquid phase is distilled, and as a result of the distillation, an alcohol-raw material with a strength of 41.2% is obtained. Raw alcohol is used for further processing.

The solid precipitate is subjected to repeated washing with hot water (40 ° C) at a water ratio of 2: 1. The mixture is intensively moved for 5 minutes at 500 rpm, and then treated with electrolytic alkali for 3 minutes. Next, the mixture is subjected to electroflotation for 8 minutes at a current density of 500 A / m. The foam product is concentrated within 5 minutes at a pressure of 0.4 Pas. The moisture content of the precipitate is 59.8%. Double washing of the precipitate leads to a more complete recovery of acid compounds.

The liquid after the second washing is combined with the liquid after the first washing and directed to distillation or combined with the liquid after distillation (barda) to obtain an ICI. It can also be used in the process cycle for washing fresh yeast sediment.

The liquid after distillation and repeated washing is neutralized at 70 ° C with a 20% solution of calcium chloride. The end of the neutralization reaction is determined by ammonium oxalate. The mixture was intensively moved at 500 rpm for 10 minutes, then left for 1 hour to complete the ICI formation reaction. To speed up the process of crystal formation, the mixture is cooled with running water to 15 ° C. 10 mg / l of polyacrylamrd in the form of a solution is added to the mother liquor, mixed vigorously and subjected to electroflotation at a current density of 100 A / m for 10 minutes. Then, the separated crystals of an FRI are washed with cold water for 5 minutes and dried at 105 ° C to a residual moisture content of 3%. The content of tartaric acid in the FRI is 54.7%.

The solid phase of the yeast sediment after washing is dried at 120 ° C to a residual moisture content of 10%. This precipitate can serve as a protein feed for animals.

The proposed method allows to intensify the processing of yeast sediments by 2-4 times due to the acceleration of the electrofloating process and an increase in the effect of clarification. Introduced grape flour improves the effect of electroflotation and cleaning fluid.

Treatment of the mixture with an electrolytic alkali results in the conversion of tartaric acid compounds into a soluble state and intensifies the process by a factor of 2-3. Electrolytic treatment allows more precise control of the dissolution of tartaric compounds, i.e. achieve the appropriate value of acidity of the medium Electrolytic treatment of the yeast sediment followed by rinsing and electroflotation of the mixture in the presence of grape flour leads to an increase in yield and an improvement in the quality of the FRI.

Electroflotation in the presence of polyacrylamide or gelatin intensifies by a factor of 2-3 the process of extracting an FRI crystal from a liquid and increases the yield of the final product.

The yield of tartaric acid according to the described method is increased by 20-30%, and its content in an FRI is 54-56%.

The resulting precipitate contains valuable biological substances and serves as a protein feed for animals.

Claims (4)

Invention Formula 0 1- The method of obtaining wine, raw alcohol, feed and tartaric lime from waste products of the .... agricultural industry - yeast sediments, including extracting wine from yeast sediments, washing them, converting tartaric acid compounds into soluble 5, separating it into liquid and solid phases, distilling the liquid phase to produce raw alcohol and bards, precipitating and separating tartrate lime from the bards solution, and thickening the solid phase used as feed, characterized in that, in order to intensify the process , to increase the yield and quality of the final products, after extracting the wine from the yeast sediments, the latter are subjected to additional separation into liquid and solid phases, transferring tartaric compounds into a soluble state is carried out by treating the mixture lytic lye to pH 5.5-6.0 at a current density of 600-1000 A / m for a period of 5-10 min, 0 and the separation of yeast sediments into liquid and solid phases and the isolation of tartaric lime is carried out by electroflotation, while before electroflotation grape flour and surface active substances are introduced into the mixture of yeast sediments and bard solution, respectively, and the solid phase after electroflotation is condensed under pressure 0.4-0.6 Pa. 2. A method according to claim 1, characterized in that the electroflotation is carried out by separating yeast sediments at a current density of 300-600 A / m, and when allocating tartaric acid - 50-150 A / m for 1020 minutes. 3. The method according to claim 1, characterized in that the grape flour is introduced into the mixture of yeast sediments in an amount of 5-15% to the solid phase with a dispersion of 0.5-1.0 mm. 4. A method according to claim 1, characterized in that as surface-active weights     it  , 745935g Substances use polyacrylamide in the quantity-1. Rudnev N.M. and Nugov L.O. Pererava 10-30 mg / l or gelatin in the amount of 25 tons of secondary raw materials winemaking pro50 mg / l solution. M., 1962, p. 30-236. Sources of information, 2. Authorship of the USSR taken into account in the examination number 422768, cl. C 12 G 1/02, 1972 (prototype).