SU1017714A1 - Process for producing tartaric acid lime,alcohol and fodder from wastes of wine-making-yeast precipitates - Google Patents

Description

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

There is a known method for the utilization of wastes from the wine industry, according to which the method of precipitation on filters with water is used to separate tartrate acid mixtures from others.

Limes are a method of obtaining tartaric lime and forage from sedimentary yeast of a winemaker, according to which, after distillation of alcohol, bard is filtered and washed on the filter by feeding portions of water through a layer of sludge formed on the filter material. The washing liquid and the filtrate are used to obtain tartaric lime by direct drying,. and precipitation is used as feed 2}.

The closest to the proposed technical essence is a method of obtaining tartaric acid and alcohol, alcohol and feed from the wastes of wine production - other precipitates, providing for the dilution of yeast sediments with demineralized water, distilling the mixture to produce raw alcohol and bards, multi-step (washing the presence of bentonite by introducing a washing liquid into it, heating and stirring the mixture, settling the latter, separating the tartrate solution from the sludge, Bleach from the tartaric acid solution STI and drying the precipitate to be used as feed PP J.

The disadvantage of this method is the insufficiently high yield of tartrate lime and the low quality of the feed.

The purpose of the invention is to increase the yield of tartaric lime and improve the quality of feed.

The goal is achieved in that according to the method of obtaining tartaric lime, alcohol and feed from wineries, yeast sediments, provides for dilution of yeast sediments with desalted water, distillation of the mixture to produce raw alcohol and bards, multi-stage washing of bards in the presence of bentonite by introducing washing the liquid, heating and stirring the mixture, settling the latter, separating the tartrate solution from the sludge, separating out the tartrate lime solution and drying the sludge used about as feed, vinasse is subjected to washing with a coarse filtration and washing vinasse is carried out in pg otivotoke its liquid and ORS lyvnoy

at the same time, at each subsequent stage, a solution of tartrate compounds obtained in the previous stage is used as a washing liquid.

: The drawing shows the scheme of the method.

The proposed method is carried out as follows.

The pressed burner precipitates were crushed and mixed with waste liquid (desalted water at the beginning of the process) at a crushing and mixing plant 1. The precipitates are diluted to a dry mix in a mixture of 6-7%. The slurry is fed to the distillation unit 2, where raw alcohol and bard are obtained. The bard from the distillation unit 2 is sent to a coarse filter 3 where coarse suspensions are separated, then into the mixer-tank 4 of the first washing stage, into which the clarified solution of tartaric acid compounds, obtained as a result of the second stage, flows from the settling tank 5 of the second washing stage washing The solution and bard in the mixing tank. In the first 4 stages of washing, the mixture is mixed by adding to them a suspension of bentonite at the rate of 1.0-2.5 g / l. After stirring and preheating the suspension to 70-80, it is drained into the settling tank 5 of the first washing stage. After 0.5-2 hours from the settling tank 5, the clarified solution of tartaric compounds is removed, filtered on a fine filter and sent to an ion-exchange unit 7, where it is adsorbed onto an anion exchanger (ED-10p / tartaric acid). Waste fluid from ion-exchange The plants are directed to the dilution of fresh yeast sediments in the crushing and mixing plant 1. The tartaric acid eluate obtained at the ion-exchange plant 7 as a result of desorption is directed to the sedimentation plant and washing with tartaric acid 8. The separated and washed and dried lime tartrate dryer 9.

Sludge from the settling tank

5 of the first stage of washing is fed to the tank-mixer 4 of the second stage, which receives the clarified solution from the tank-sump 5 of the third stage of washing. In the tank-mixer 4 of the second stage, the clarified solution and the precipitate is stirred and heated. After mixing and heating / suspension is poured into the tank-sump 5, where the separation of the solution of tartrate compounds and precipitation of yeast.

After sludge (0.5-2 h), the clarified solution from the tank-sump 5 of the second stage of washing is removed

and the tank is the mixer 4 of the first stage, and the sediment is pumped into the reservoir to the tank-mixer 4 of the third stage. Thus, mixing is done in the reserve mixers 4: first stage - fresh bards with clarified solution, second stage and bentonite suspension, second stage - first stage sediment with clarified third stage solution, third stage - second stage sediment with fresh demineralized water After draining the suspensions from the tanks of the mixers 4 into the reservoir-sumps 5, sludge simultaneously occurs in all the stages. At the same time, the clarified solution is also discharged from the settling tanks: the first step -. To the production of tartaric lime, the second step - to the first, third step mixer to the second mixer. After removing the clarified solutions, sediment is simultaneously pumped from the settling tanks: the first step - to the Second mixer. the second stage in the SECONDER third and third stage - on the preparation of food.

When preparing feeds without cyiu, the sediments are transported to the feed workshop, and when dried, the sediments are compressed. Liquid obtained by pressing is used instead of water for washing the sediments:

PRI me R. 100 kg of pressed yeast sediments are diluted with waste liquid, 400 l liquid yeast sediments are obtained; with a content of 6.5% solids, 4.0%

Indicators

alcohol and 1.2% tartrate compounds. The mixture was distilled in a distillation unit, yielding 15.5 liters, calculated on the anhydrous basis and 400 liters of stillage from which alcohol was extracted, but replenished with condensates. Barda is filtered on a coarse filter, a coarse suspension section is then washed with a tithing desalted water with 1.5 g / l bentonite added in the first stage in the form of a 20% slurry .. The temperature is below 70 ° C. As a result of countercurrent washing, 400 l of a clarified solution of tartaric acid compounds with a content of 1.0% tartaric acid are obtained. The resulting solution is filtered on a fine filter. It is fed to the ion exchange unit where the tartrate compounds are adsorbed to the anion exchange resin. When adsorbed, waste liquid is used to dilute freshly compressed others. During desorption with a solution of sodium chloride, an eluate is obtained, from which tartaric lime is precipitated with calcium chloride, passed through and dried. At the same time get 3,36 KG of tartaric lime in terms of 100% tartaric acid. The yield of tartaric acid from its initial content in the initial product is 70%.

  , - -. Comparative data on efficiency, as well as on the quality of the feed obtained according to the known and proposed methods are presented in the table.

Way

Proposed

Famous

The yield of VINNO1 lime,%

Feed quality

Protein content,%

The residual content of tartaric compounds,%

Ash content,%

(in terms of abs. dry

substance)

The proposed method allows to increase the yield of tartrate lime 1.5-2 times, increasing the amount of

70

35 -, 40

"S

20.0

30.0 Less than 0.1 0.3

15

10.3

protein and reducing the content of tartrate compounds and ash in feed

65 improves its quality. Fi I lit I I l.T tj7 t W I il i C t- -I-a- J I I r yj

Claims (1)

METHOD FOR PRODUCING WINE AND OXYGEN LIME, ALCOHOL AND FEED FROM WASTE PRODUCTS OF YEAST SEDIMENTS, which involves diluting yeast sediments * with demineralized water, distilling the mixture to obtain crude alcohol and stillage, washing it with multi-stage washing mixing the mixture, settling the latter, separating the tartaric acid solution from the precipitate, isolating lime tartaric acid from the solution and drying the precipitate used as feed, characterized in that, in order to increase the yield of tartaric lime and improve the quality of the feed, the distillers are subjected to coarse filtration before washing, and the vinasse is washed in countercurrent flow of its washing fluid, while at each subsequent stage, the solution of tartaric compounds obtained at the previous steps.