A method for recycling paper to produce a less white and clean office paper product for paper printing and writing, said method comprising the steps of: collecting waste papers; sorting said collected papers waste without the need to separate between the various paper grades; pressing said sorted recycled paper; pulping said sorted recycled paper by a pulper which contains water turns into a mixture; said pulper chops said sorted recycled paper into small pieces; heating said pulp mixture breaks said recycled paper down more quickly into tiny strands of cellulose or fibers to eventually, said sorted recycled paper turns into a pulp; sieving, said pulp is forced through sieves containing holes and slots of various shapes and sizes, said sieves remove small contaminants; cleaning, said pulp spinning around in large cone-shaped cylinders; heavy contaminants are thrown to the outside of the cone and fall through the bottom of the cylinder; lighter contaminants collect in the center of the cone and are removed; refining, said pulp is beaten to make said recycled fibers swell for papermaking; if said pulp contains any large bundles of fibers, said refining step separates said bundles into individual fibers; dewatering, said watery pulp enters a headbox at a paper machine, and then is sprayed in a continuous wide jet onto a huge flat wire sieve which is moving very quickly through said paper machine; on a sieve, water starts to drain from said pulp, and said recycled fibers quickly begin to bond together to form a watery sheet; said sheet moves rapidly through a series of felt-covered press rollers which squeeze out more water; said sheet, which now resembles paper, passes through a series of heated metal rollers which dry said paper’, said dried paper is wound into a giant roll and removed from the paper machine; the roll of said paper is cut into smaller rolls, or sometimes into sheets and made into said paper product.

The present invention relates to novel lignin-derived compounds and compositions comprising the same and their use as redox flow battery electrolytes. The invention further provides a method for preparing said compounds and compositions as well as a redox flow battery comprising said compounds and compositions. Additionally, an assembly for carrying out the inventive method is provided.

A sheet manufacturing apparatus includes a classifier unit configured to classify by air flow an introduced material that has been introduced, a screening unit configured to allow a classified material, which comprises fibers, that has been classified by the classifier unit to pass through a plurality of openings to screen the classified material, and a forming unit configured to use a passed material that has passed through the openings to form a sheet. The classified material is supplied to the screening unit by the air flow.

A sheet manufacturing apparatus includes a classifier unit configured to classify by air flow an introduced material that has been introduced, a screening unit configured to allow a classified material, which comprises fibers, that has been classified by the classifier unit to pass through a plurality of openings to screen the classified material, and a forming unit configured to use a passed material that has passed through the openings to form a sheet. The classified material is supplied to the screening unit by the air flow.

The present invention relates to novel lignin-derived compounds and compositions comprising the same and their use as redox flow battery electrolytes. The invention further provides a method for preparing said compounds and compositions as well as a redox flow battery comprising said compounds and compositions. Additionally, an assembly for carrying out the inventive method is provided.

The present invention relates to a method for producing one or more low molecular weight aromatic lignin-derived compounds. The method preferably comprises providing lignocellulosic material, subjecting the lignocellulosic material to a pulping process, separating pulp to provide a substantially pulp-free process stream comprising a modified lignin-derived component, isolating the modified lignin-derived component, subjecting the isolated modified lignin-derived component to a decomposition step comprising oxidative cracking (cracking and oxidizing) or reducing under the influence of a catalyst or electro-oxidation, and subjecting the resulting products to an isolation step, to provide a low molecular weight aromatic lignin-derived compound. Said compound may be further modified, e.g. by annulation. The inventive method preferably comprises further oxidizing said compound to a redox active compound. Additionally, the present invention relates to compounds obtainable by the inventive method and to an assembly for carrying out the inventive method. Furthermore, the present invention refers to a method for providing an existing pulp and/or paper manufacturing plant with said assembly.

The present invention relates to novel lignin-derived compounds and compositions comprising the same and their use as redox flow battery electrolytes. The invention further provides a method for preparing said compounds and compositions as well as a redox flow battery comprising said compounds and compositions. Additionally, an assembly for carrying out the inventive method is provided.

A method for manufacturing a compact includes a mixing step of mixing a fiber and a powder of a binder to obtain a mixture; an accumulating step of accumulating the mixture to form a web; a humidifying step of adding water to the web; and a forming step of heating and pressurizing the water-added web to obtain a compact. The binder binds between fiber molecules by the addition of water. The powder has a specific surface area of 0.2 m.sup.2/g or more.

A method for manufacturing a compact includes a mixing step of mixing a fiber and a powder of a binder to obtain a mixture; an accumulating step of accumulating the mixture to form a web; a humidifying step of adding water to the web; and a forming step of heating and pressurizing the water-added web to obtain a compact. The binder binds between fiber molecules by the addition of water. The powder has a specific surface area of 0.2 m.sup.2/g or more.

The present invention relates to novel lignin-derived compounds and compositions comprising the same and their use as redox flow battery electrolytes. The invention further provides a method for preparing said compounds and compositions as well as a redox flow battery comprising said compounds and compositions. Additionally, an assembly for carrying out the inventive method is provided.