SU960248A1 - Process for recovering wine from gluten precipitates - Google Patents

Description

'The invention relates to the wine industry, in particular to methods for extracting wine from glutinous sediments. _s

It is known to use osvet- ^e Lenia liquids polyacrylamide in combination with a stabilizer £ 1).

A known method of filtering liquid media in the presence of perlite £ 2]. .θ

It is known to use for clarification of liquid media, in particular wines, sodium alginate £ 3J.

Closest to the invention is a method of extracting wine from glutinous sediments by filtering them 15 under pressure [4].

The disadvantage of this method is that the resulting wine contains the remains of Prussian blue, the process is long due to the adherence of sediment-20 ka to the filter material. In addition, the process of spinning ^ at high pressure requires the use of expensive equipment, for example, filter presses of the FPAKM type. 25

The aim of the invention is to accelerate the process.

This object is achieved by the method according izvleche- __ Nia wine from glutinous precipitates by filtration ^υ them under pressure, filtration under Perey precipitate successively introduced a mixture of sodium alginate and polyacrylamide in a ratio of 1: 1 and perlite powder, respectively in an amount of 10-20 mg / l and 5-15% solids sediment.

The introduction of sodium alginate and polyacrylamide in equal proportions in an amount of 10-20 mg / l in adhesive sediments allows coagulating and flocculating dispersed particles of Prussian blue with an increase in their size, which improve and accelerate the filtration process.

The use of powdered perlite leads to the formation of a drainage layer, which accelerates the filtration process and prevents the adhesion of colloidal particles to the filter material.

•.

The proposed method is as follows.

High-molecular substance sodium alginate and polyacrylamide in a ratio of 1: 1, in an amount of 1020 mg / l and a filtering additive, 960248 powdery perlite in an amount of 5 ^ -15% to dry substances, are introduced into liquid glutinous precipitates obtained during the combined processing of wines with yellow blood salt. sediment, mix and pump the filterpress, where they are filtered through a filter cloth lavsan under a pressure of 0.1-0.4 MPa. After completion of the precipitation filtration process, the latter is unloaded, and the filtering tissue is regenerated.

The resulting wine, after squeezing the adhesive residue, is used in the technological cycle, for example, for making blends.

Example. High-molecular substance, sodium alginate and polyacrylamide are introduced into adhesive sediments with a content of 10.2% of dry substances. A ratio of 1 si, in an amount of 10 mg / l, is stirred for 10 minutes and 8% perlite powder is added. The mixture is transferred to a filter funnel simulating pressure filtration processes. The filtering surface of 100 cm? The filtering process of the sediment is carried out at a pressure of 0.2 MPa. Then carry out the extraction of the precipitate with increasing pressure to 0.4 No. As a result of filtration, a precipitate with a moisture content of 47.3% is obtained. The precipitate is unloaded, the filter cloth is regenerated with hot water.

The resulting wine, which does not contain the remains of Prussian blue and other colloidal substances, is processed according to a known method and used as intended.

The proposed method allows to speed up the process of extracting wine from adhesive sediments from 28.8 to 7.5 minutes.

Claims (2)

The powder-like perlite in quantity to the dry substances of the precipitate is mixed and pumped to the filter press, where they are filtered through filter fabric of dacron under a pressure of 0.1-0.4 MPa. After completion of the filtering process, the precipitates are unloaded and the filter fabric is regenerated. The resulting wine, after squeezing the glue sediments, is used in a technological cycle, for example, for the preparation of blends. Example. The high-molecular weight substance sodium alginate and polyacrylamide c are introduced into glue deposits containing 10.2% of dry substances. 1: 1 ratio, in an amount of 10 mg is stirred for 10 minutes and 8% powdered perlite is added. The mixture is transferred to a filter funnel that simulates pressure filtration processes. Filtering surface 100 cm. The filtration process is carried out at a pressure of 0.2 MPa. Then, the precipitate is pressed with a pressure increase up to 0.4 Sha. As a result of filtration, a precipitate is obtained with a moisture content of 47.3%. The precipitate is discharged, the filter cloth is regenerated with hot water. The resulting wine, which does not contain residues of Prussian blue and other colloidal substances, is treated by a known method and used for its intended purpose. The proposed method allows to speed up the process of extracting wine from glue deposits from 28.8 to 7.5 minutes. The invention of the method of extracting wine from glue sediments by filtering them under pressure, which also differs in that, in order to speed up the process, before filtering, a mixture of sodium alginate and polyacrylamide in a ratio of 1: 1 and Powdered pearl is introduced into the sediment in the amount of 10-20 mg / l and 5-15% to dry matter of the sediment. Sources of information taken into account in the examination. 1. USSR author's certificate 1 61189, cl. C 12 H 1/10, 1940. 2. USSR author's certificate 345200, cl. C 12 N 1/02, 1966. 3- N.A. Mekhuela, L.M. Lipovia. Pzgti improve filtration efficiency in winemaking. M., TsNIITEEIpischeprom, 1975, p.7. 4. USSR author's certificate W 391169, cl. From 12 (3 l / 08, fl973.