CS264159B1 - A method of isolating smoke substances for the production of smoking preparations - Google Patents

Abstract

The solution relates to a method of isolating smoke substances for the production of smoking preparations. The essence of the solution is that the decomposition is carried out by superheating with steam at a pressure of up to 0.1 MPa from cyclohexane-refined wood tar, whereby three fractions are obtained, the first of which consists predominantly of carbonyl compounds and 2-methoxyphenol 35 to 40% by volume of the feedstock, the second, predominantly 2,6-methoxyphenol, is 30 to 40 ° / o of the initial feedstock volume and the third is the distillation residue to remove particulate matter and adjust the pH to 5.8 to 6.2.

Description

264159

BACKGROUND OF THE INVENTION The present invention relates to a process for the isolation of smoke-generating substances by using a variety of sophisticated methods of extraction and purification, based on distillation, adsorption and desorption principles, and often using organic solvents which are extremely safe. Often, the methods employed in the above-mentioned isolation methods require additional purification of the substances obtained by astonishing aroma from undesirable, possibly harmful substances.

By pol '. pat. No. 166,977, the tar obtained from dry distillation of wood is extracted from 5 to 25% by weight. % aqueous acidic solution or 0.5 to 5 wt. orthophosphoric acid solution. After extraction, the extract of the tar is washed with water and aqueous NaHCO 3 or saturated aqueous NaCl solution and subjected to a stepwise distillation under reduced pressure in atmospheric gases (nitrogen, argon, carbon dioxide) with the addition of zinc, aluminum or iron chips of 1 to 10 wt. distillation at a pressure of 2.66 to 3.99 kPa, substances are taken with a temperature of less than 100 to 110 ° C. The second stage of distillation is carried out at a pressure of less than 2.66 kPa with the addition of 5 parts by weight of glycerol per part of the breath. pyrene, dibenzanetracene, and other aromatic hydrocarbons are removed by adsorption on affinity carbon, porous silica, synthetic molecular sorbents, and after the liquid is passed through the adsorption column, the solvent is removed under normal or reduced pressure.

According to the next, " 49,216, NaOH is alkalized to produce a tailing preparation obtained by burning wood in excess of air and extracted with ethyl ether. The aqueous solution of tarus is acidified with sulfuric acid to pH 10.8 and extracted again with ethyl ether. The organics dissolved in the ethyl ether alkali extraction even after the second partially fractionated fraction are concentrated separately. Thus, a terpene fraction of phenols and a phenol fraction are obtained. A mixture of volatiles was distilled off from the terpene fraction after the solvent was removed at 200 ° C and a pressure of 2.66 kPa. The mixed fractions of the two moieties of phenols and one part of the terpenes form a diacid.

These drawbacks are solved by the method of isolating the smoke substances for the preparation of smoking preparations by distillation from wood tars according to the invention, the distillation being carried out by superheating with steam under pressure of up to 0.1 MPa from the cyclohexane refined wood tar, whereby three fractions are obtained, the majority of which are predominantly carbonyl compounds and 2-methoxyphenol, are 35-40% by volume of the initial feedstock volume and the third fraction is the distillation residue after removal of the particulates and pH adjustment to a value of 5.8 to 6.2. All three fractions are healthy.

The first two fractions obtained can be used directly to flavor foods with smoke flavorings in the fractions of efficacy in the fractions and the desired flavoring effect, or can be used to further prepare smoked fractions by combining them according to the qualitative composition and the concentration of organoleptically effective. and the desired aromatizing properties. The distillation recovered as a third fraction can be used for flavoring by means of coating or directly surface food. Přikladl

The glass or stainless steel distillation vessel is heated by steam, to a steam temperature of 60 ° C, the cooling pipe is released into the condenser system and then the homogeneous cyclohexane-refined wood tar is allowed to slowly adhere to the reservoir from the barrel and heavier phase than that obtained during refining. After filling the 50% content of the desilator, the refined hour feed is stopped and slowly fed through a dispenser located at 130 ° C and 0.28 mPa. When the foam is stopped, cautious with the vacuum pump and the safety valve will begin to reduce the pressure in the apparatus so as to achieve a uniform weld in the entire contents of the distillation boiler and condensate in the cooling system. The pressure decreases with constant vapor flow and gradual to nominal pressure of 1.33 kPa. This process distils 35% to 45% of the initial feedstock, which constitutes the first fraction of the distillation. To obtain a second fraction, the distillation boiler is heated to 80 ° C with a steam burner, the feed of distillation steam of the above parameters is released, and the process is repeated until 30% to 40% of the initial volume of the feed is obtained. Distillation efficiency is controlled spectrophotometrically in the UV region of the spectrum. The remainder of the distillation is still hotly discharged into the distillate storage vessel and allowed to cool without air. The distillation residues from one part of the raw wood tar of the sedimented and equal species of cyclohexane-refined tarus are combined and left to sediment in a sealed or stainless steel container for 48 hours at 15 ° C to 20 ° C. The solution above the sediment is cautiously adjusted to pH 5.8-6.2 and filtered, the clear filtrate forming a third fraction.

Claims (3)

SUBJECT Method for the isolation of smoke substances for the production of smoking preparations by wood tar distillation, characterized in that the distillation is effected by superheating the water pad under a pressure of up to 0.1 MPa from the cyclohexane of refined wood tar, yielding three fractions, the first containing predominantly carbonyl compounds. and 2YNALEZU -methoxyphenol constitutes 35 to 40% by volume of the initial feedstock volume, the second containing predominantly 2,6-methoxyphenol constitutes 30 to 40% of the initial feedstock volume and the third fraction is the distillation residue after removal of the solids and pH adjustment to 5.8 to 6.2.