SU959691A1 - Resin formation stimulant at tapping pine tree - Google Patents

Description

(54) RESPONSEABLE STIMULATOR WITH PINE SUPPORT

one

The invention relates to forestry, in particular to the forest tapping, and can be used for tapping pine using incentives.

A known resin stimulator, containing sulphite black liquor, is a by-product of cellulose production by sulphite method 1.

However, the known stimulator has insufficiently high efficiency. In addition, the resin formation and resin release stimuli prepared on the basis of sulphite liquor do not have a promising raw material base, since the sulphate method is recognized as the main method of pulp production.

It is known the use of semi-boiled sulphate black liquor at a concentration of 10. % as a stimulator of growth of seedlings of coniferous plants 2.

The aim of the invention is to increase the yield of resin and expand the range of effective stimulators from pulp production wastes.

This goal is achieved by using sulphate black liquor in the form of a 5–9 / o-aqueous solution as a stimulator of resin release.

Sulfate black liquor is a waste of pulp and paper production resulting from sulphate pulping of softwood and hardwood. As a stimulator of resin formation

10 and resin release was used semi-evaporated black sulphate liquor of the Syktyvkar LPC, characterized by the following indicators: density 1.191 g / cm, pH 10.86, solids content 33.19%, including organic

15 substances 18.46 / o, ash 14.73%. In chemical composition, sulphate liquor differs significantly from sulphite (prototype). Sulfate lye is an aqueous solution of the sodium salts of organic

20 and inorganic compounds. Organic substances include high molecular weight lignin, aliphatic mono- and polyoxyacids, lower and higher fatty acids, resin acids, various

low molecular weight phenolic components; aromatic oligomers. The mineral part includes sodium salts of sulfur-containing acids (sulfate, sulfite, sulfide, thiosulfate, polysulfides, etc.).

Example. Quite healthy trees of I-III Kraft classes from 20 cm thick and higher were selected for tapping.

Sulfite-alcohol barda was used as one of the stimulants of resin release. An aqueous solution of the proposed composition was used as another stimulator.

At a lower concentration, due to the low content of active substance in water, its stimulating ability is not effective enough. At a concentration above 9% thick sulphate liquor is difficult

It is applied to the prints, it covers up the resin cuttings and does not contribute to effective resin release.

Alternately, 5 were tested; 6.6 and 9 / o-nth aqueous solutions of sulphate black liquor. To obtain the proposed stimulator, semi-evaporated sulphate black liquor with a solids content of 33.19% was diluted 5 times with water. The resulting 6.6 / o-ny aqueous solution of sulphate black liquor and sulphite-alcohol bard, dissolved to a pH of 4.5, was applied to the sections in an amount of 0.2-0.3 ml per 10 cm of schirina carr during a pause for 3-4 days , scrub podnovok 0.8-1.0 cm, depth podnovok 0.1-0.3 cm.

Results of using various

The incentives are tabulated.

Control without 17,0100 stimulus

From the data presented in the table, it is obvious that, when tapping the proposed stimulator from pulp and paper production waste, the yield of sap increases by an average of 48% compared to conventional tapping without a stimulator and 10% compared to using sulfite alcohol bards, which is also a waste of production.

The use of spent sulphate liquor as a stimulator for gum formation and resin extraction expands the range of effective stimulators.

Claims (2)

1. USSR author's certificate No. 92028, cl. A 01 G 23/10, 1950. 2. USSR author's certificate No. 676252, cl. And 01 N 5/00, 1977 (prototype). 54.0 100816.0 100