SU507677A1 - Pulp Production Method - Google Patents

Description

(54) FACTORY OF PULP PREPARATION is maintained for 20 hours at KO mill conditions. After the expiration of the specified period, the filtrate is removed, and the sheppe is loaded into the autoclave and subjected to: sulphite boiling with reduced final stopping times according to the mode. Temperature rise to 105 ° С If5 hour Standart by 105 ° С 1e5 hour Temperature rise to

Table 1 100% HF, 140 С0.25 hr. Composition of arch acid: 10% 1% Nap, hydronic module 1: 6. After the end of cooking, the pulp is washed in laboratory stages, dried to an air-dry state and analyzed by physico-mechanical parameters. The results of the cooking and the characteristics of the resulting cellulose fiber are given in Table. 1, s

In the control cooking instead of the cult. URT, the filtrate of chips was poured with tap water. After the expiry of the time and duration of the filtrate is fixed, and the chips are loaded into the laboratory. ABTOiaies (with a capacity of 5 liters) with electric heating and cooking is carried out in the classical mode:

1; 5 hour 1.5 hour 1.5 hour 1 (5: hour

Cooking of wires with cooking acid of composition 10% Bc S02il ° 4Na ,, 0 к at a water ratio - 1: 6.

At the end of the cooking, the pulp is washed in a laboratory X, dried to an air-dry state and analyzed by the main physicomechanical indicators, which are given in Tables 1 and 2,

Cellulose obtained with the use of the culture filtrate zsepeeopfiapymaroschayuschih mushrooms, in all cookings much. Lighter (especially in the case of the use :: esh: rpsiiba Fofnttopsis annosa (FrJ Korst) than;

Raw culture filter t C; l, Data in table g,,.

I confirm the possibility of reducing the time

no cooking and obtaining the required quality of cellulose fiber.

Thus, the conducted studies indicate that, firstly, the processing of wood chips with culture filtrates of wood-destroying fungi is an effective means of intensifying pulp and paper production: secondly, the effectiveness of fungi is individual; Thirdly, the most effective is the processing of chips.

culture filtrate of the fungus foffiitop6iS CU) nosci (rr) tarst; fourth, the use of the filtrate of the fungus Fomit9psis annosa (Pr) "aG5 accelerates the process of wood delignification

by 25-30% and, in addition, significantly improves the paper formation properties of cellulose fibers.

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Claims (2)

1. A method of producing cellulose by treating a crushed raw cellulose-containing raw material with an impregnating solution, followed by its removal and boiling with a sulfite cooking solution, so that it reduces the cooking time and improves the paper-forming properties The target product is used as an impregnating solution for the culture filtrate of wood-destroying fungi. 2. The method according to p. 1, characterized in that the impregnation is carried out at a pressure of, t1eni i, ensuring the transfer of | enzymes in the lignocellulose mass at 15-60 C.