BRPI1106360A2 - TOBACCO CELLULOSE PULP PRODUCTION PROCESS - Google Patents

Abstract

TOBACCO CELLULOSE PULP PRODUCTION PROCESS. A pulp pulp production process is described from the tobacco stalk (Nicotiana L. (Solanaceae)), a waste that is little used by the industry and of small commercial value, which comprises the steps of reducing tobacco stalks to chips, cooking in an alkaline or acidic charge, the temperature between 105 to 170 ° C for an estimated time of 1 to 14 hours; collection of solid material and bleaching.

Description

CELLULOSE PULP PRODUCTION PROCESS

TOBACCO

FIELD OF THE INVENTION

The present invention describes a process for producing tobacco cellulose pulp. More specifically, it comprises a process that provides cellulose from tobacco stalk (Nicotiana L. (SoIanaceae)), a waste that is little used by industry and of little commercial value. BACKGROUND OF THE INVENTION Diversification of vegetable fibers for papermaking is

It is a fact of the industry that, in addition to conventional materials, such as tree wood pulp, mainly pine and eucalyptus, has been researching other plant varieties, such as sugarcane residues. One of these possible alternatives is the use of tobacco waste.

for paper production, in view of the discard or little use of the stalk and stem. SUMMARY

The invention provides a tobacco cellulose pulp production process for the manufacture of tobacco fiber products such as paper, rope and the like.

The invention provides a tobacco pulp pulp production process that utilizes tobacco industry residues such as stalk and stem, adding value to this currently disposed waste. The invention provides a process for producing cellulose pulp.

In the case of tobacco with potential application in cigarette paper making, the ee increases the percentage of tobacco in cigarette making, adding value to the product. The invention provides a process of producing tobacco cellulose pulp with potential application for textile purposes, manufacturing of

packaging and supply of vegetable cellulosic fibers. DETAILED DESCRIPTION OF THE INVENTION The process of producing tobacco pulp pulp, object of

of the present invention provides for the manufacture of cellulose using the

of tobacco.

Initially, the tobacco stalks are reduced to chips and placed in a reactor vessel together with alkalis or acids with

concentration between 5.0% and 20.0%.

The cooking is performed with a dilution factor between 4: 1 and 8: 1, using an alkaline or acidic charge, the temperature between 105 to 170 ° C for an estimated time of 1 to 14 hours, to go through the delignification process. After cooking, the vegetable mass is cooled to 50 ° C.

Thereafter, the solid material is collected in a 50 to 200 mesh screen and optionally followed by a fiber breaker.

Then the fibers are washed with running water to remove alkali and / or residual acid and then sent to the bleaching step.

Preferably, a delignification (Kappa = 40) promotes pulp bleaching in order to perform extended delignification with oxygen. The obtained cellulose enables the manufacture of fiber products.

tobacco, such as paper, ropes and others.

Claims (2)

1. Tobacco cellulose pulp production process comprising the steps of: (a) reducing tobacco stalks to chips; b) stems placed in a reactor vessel together with alkalis or acids with a concentration between 5.0% and 20.0%; (c) cooking with a 4: 1 to 8: 1 dilution factor using an alkaline or acidic charge at a temperature of 105 to 170 ° C for an estimated time of 1 to 14 hours; d) vegetable mass is cooled to 50 ° C; e) collection of matter! solid in a 50 to 200 mesh screen; f) fibers washed with running water to remove alkali and / or residual acid; g) bleaching. 2. TOBACCO CELLULOSE PULP PRODUCTION PROCESS according to claim 1, characterized in that an extended delignification (Kappa = 40) with oxygen is preferably performed.