Abrégé

The present invention concerns a method of extracting and refining wax from plant material. Briefly, the method comprises the steps of (a) providing plant material comprising cuticular wax, (b) disassociating cuticular wax from the plant material by subjecting said plant material to a dry mechanical treatment and suspending the dry mechanically treated material, or a fraction thereof, in an aqueous solution comprising protease and/or pectinase enzymes, thereby obtaining a sample comprising plant derived cuticular wax and dewaxed plant material in an aqueous suspension, (c) solubilizing the plant derived cuticular wax by increasing the temperature of the sample, (d) separating the suspension into a solid fraction and a liquid fraction comprising melted plant derived cuticular wax, (e) adjusting the pH and temperature of the liquid fraction to pH 5.5 or lower and 50° C. or lower, respectively, (f) separating the mixture into a waxy fraction and an aqueous fraction, (g) recovering the plant derived cuticular wax from the waxy fraction.

Classes IPC  ?

• C11B 11/00 - Obtention ou raffinage d'autres matières grasses, p. ex. lanoline ou cires
• B01D 11/02 - Extraction par solvants de solides

Abrégé

The present invention concerns a method of extracting and refining wax from plant material. Briefly, the method comprises the steps of (a) providing plant by material comprising cuticular wax, (b) disassociating cuticular wax from the plant material, thereby obtaining a sample comprising plant derived cuticular wax and dewaxed plant material in an aqueous suspension, (c) solubilizing the plant derived cuticular wax by increasing the temperature of the sample, (d) separating the suspension into a solid fraction and a liquid fraction comprising melted plant derived cuticular wax, (e) mixing the liquid fraction with a capturing agent, wherein the capturing agent has a boiling point above 85° C. at ambient pressure, (f) separating the mixture into an aqueous fraction and a capture fraction comprising capturing agent and plant derived cuticular wax, (g) recovering the plant derived cuticular wax from the capture fraction.

Classes IPC  ?

• C11B 11/00 - Obtention ou raffinage d'autres matières grasses, p. ex. lanoline ou cires

Abrégé

The present invention provides a method of producing an improved cellulose pulp consisting of cellulose fibers of a desired length, such as cellulose fibers having a length-weighted average fiber length Lc(l)>0.6 mm and its use in cellulose pulp-comprising products, such as packaging material with improved properties.

Classes IPC  ?

• D21C 5/00 - Autres procédés pour obtenir de la cellulose, p. ex. cuisson des linters de coton
• D21C 9/00 - Post-traitement de la pâte de cellulose, p. ex. de la pâte de bois, ou des linters de coton
• D21C 9/02 - Lavage
• D21C 9/08 - Élimination des graisses, résines, poix ou cires
• D21C 9/10 - Blanchiment
• D21C 9/16 - Blanchiment avec des per-composés
• D21C 9/18 - Élimination de l'eau

Abrégé

The present invention concerns a method of extracting and refining wax from plant material. Briefly, the method comprises the steps of (a) providing plant material comprising cuticular wax, (b) disassociating cuticular wax from the plant material by subjecting said plant material to a dry mechanical treatment and suspending the dry mechanically treated material, or a fraction thereof, in an aqueous solution comprising protease and/or pectinase enzymes, thereby obtaining a sample comprising plant derived cuticular wax and dewaxed plant material in an aqueous suspension, (c) solubilizing the plant derived cuticular wax by increasing the temperature of the sample, (d) separating the suspension into a solid fraction and a liquid fraction comprising melted plant derived cuticular wax, (e) adjusting the pH and temperature of the liquid fraction to pH 5.5 or lower and 50°C or lower, respectively, (f) separating the mixture into a waxy fraction and an aqueous fraction, (g) recovering the plant derived cuticular wax from the waxy fraction.

Classes IPC  ?

• C11B 11/00 - Obtention ou raffinage d'autres matières grasses, p. ex. lanoline ou cires

Abrégé

The present invention concerns a method of extracting and refining wax from plant material. Briefly, the method comprises the steps of (a) providing plant material comprising cuticular wax, (b) disassociating cuticular wax from the plant material, thereby obtaining a sample comprising plant derived cuticular wax and dewaxed plant material in an aqueous suspension, (c) solubilizing the plant derived cuticular wax by increasing the temperature of the sample, (d) separating the suspension into a solid fraction and a liquid fraction comprising melted plant derived cuticular wax, (e) mixing the liquid fraction with a capturing agent, wherein the capturing agent has a boiling point above 85°C at ambient pressure, (f) separating the mixture into an aqueous fraction and a capture fraction comprising capturing agent and plant derived cuticular wax, (g) recovering the plant derived cuticular wax from the capture fraction.

Classes IPC  ?

• C11B 11/00 - Obtention ou raffinage d'autres matières grasses, p. ex. lanoline ou cires

Abrégé

A method and an plant for separating wax from a dried wax coated plant material, comprising mechanically processing the plant material in a dry process by using an apparatus adapted for deforming at least the outer surface of the plant material, so that the wax coating is cracked and released from the remaining, partly de-waxed, plant material; separating the plant material in a separator into a portion A comprising plant material with a relatively high content of cracked and released wax coating and a relatively low content of the remaining, partly de-waxed, plant material, and a portion B comprising respectively a relatively low content cracked and released wax coating and a relatively high content of the remaining, partly de-waxed, plant material; liquefying the wax contained in portion A, and separating the liquefied wax from the remaining, partly de-waxed, plant material in portion A.

Classes IPC  ?

• C11B 11/00 - Obtention ou raffinage d'autres matières grasses, p. ex. lanoline ou cires
• C11B 1/14 - Production des graisses ou huiles à partir de matières premières en les fondant dans de l'eau ou des solutions aqueuses chaudes
• C11B 1/08 - Production des graisses ou huiles à partir de matières premières par pressage par pressage à chaud
• C11B 1/04 - Traitement préliminaire des matières premières végétales
• B02C 23/08 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation

Abrégé

The present invention provides a method of producing an improved cellulose pulp consisting of cellulose fibers of a desired length, such as cellulose fibers having a length-weighted average fiber length Lc(l) > 0.6 mm and its use in cellulose pulp-comprising products, such as packaging material with improved properties.

Classes IPC  ?

• D21C 1/06 - Traitement préalable des matériaux finement divisés avant la cuisson avec des composés à réaction alcaline
• D21B 1/00 - Matières premières fibreuses ou leur traitement mécanique
• D21C 3/02 - Réduction en pâte des matières contenant de la cellulose avec des bases inorganiques ou des composés à réaction alcaline, p. ex. procédés au sulfate
• D21C 5/00 - Autres procédés pour obtenir de la cellulose, p. ex. cuisson des linters de coton
• D21C 9/00 - Post-traitement de la pâte de cellulose, p. ex. de la pâte de bois, ou des linters de coton
• D21C 9/02 - Lavage
• D21C 9/10 - Blanchiment

Abrégé

A method and an plant for separating wax from a dried wax coated plant material, comprising mechanically processing the plant material in a dry process by using an apparatus adapted for deforming at least the outer surface of the plant material, so that the wax coating is cracked and released from the remaining, partly de-waxed, plant material; separating the plant material in a separator into a portion A comprising plant material with a relatively high content of cracked and released wax coating and a relatively low content of the remaining, partly de-waxed, plant material, and a portion B comprising respectively a relatively low content cracked and released wax coating and a relatively high content of the remaining, partly de-waxed, plant material; liquefying the wax contained in portion A, and separating the liquefied wax from the remaining, partly de-waxed, plant material in portion A.

Classes IPC  ?

• C11B 11/00 - Obtention ou raffinage d'autres matières grasses, p. ex. lanoline ou cires
• C11B 1/14 - Production des graisses ou huiles à partir de matières premières en les fondant dans de l'eau ou des solutions aqueuses chaudes
• C11B 1/08 - Production des graisses ou huiles à partir de matières premières par pressage par pressage à chaud
• C11B 1/04 - Traitement préliminaire des matières premières végétales
• B02C 23/08 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation

Abrégé

The invention concerns plant wax extracts and a method for extracting wax from plants, such as agricultural biowaste and in particular from cereal straw, including a first dry mechanical treatment step to separate a wax enriched fraction from a straw fraction low in wax and a second wet step including enzymatic treatment of the wax enriched fraction.

Classes IPC  ?

• C11B 11/00 - Obtention ou raffinage d'autres matières grasses, p. ex. lanoline ou cires

Abrégé

A method and an plant for separating wax from a dried wax coated plant material, comprising mechanically processing the plant material in a dry process by using an apparatus adapted for deforming at least the outer surface of the plant material, so that the wax coating is cracked and released from the remaining, partly de-waxed, plant material; separating the plant material in a separator into a portion A comprising plant material with a relatively high content of cracked and released wax coating and a relatively low content of the remaining, partly de-waxed, plant material, and a portion B comprising respectively a relatively low content cracked and released wax coating and a relatively high content of the remaining, partly de-waxed, plant material; liquefying the wax contained in portion A, and separating the liquefied wax from the remaining, partly de-waxed, plant material in portion A.

Classes IPC  ?

• C11B 1/04 - Traitement préliminaire des matières premières végétales
• C11B 1/08 - Production des graisses ou huiles à partir de matières premières par pressage par pressage à chaud
• C11B 1/14 - Production des graisses ou huiles à partir de matières premières en les fondant dans de l'eau ou des solutions aqueuses chaudes