Surfactant compositions and solid compositions with detersive combinations of surfactants are provided. Solid alkaline compositions contain a first surfactant that is a reverse EO/PO block copolymer of about 10-40% EO and a second surfactant that is at least one of a reverse EO/PO block copolymer of about 40-50% EO, an alkyl capped alcohol ethoxylate, a capped block copolymer, and alkyl pyrrolidone are provided. Methods of using the surfactant compositions and solid compositions are provided.

Surfactant compositions and solid compositions with detersive combinations of surfactants are provided. Solid alkaline compositions contain a first surfactant that is a reverse EO/PO block copolymer of about 10-40% EO and a second surfactant that is at least one of a reverse EO/PO block copolymer of about 40-50% EO, an alkyl capped alcohol ethoxylate, a capped block copolymer, and alkyl pyrrolidone are provided. Methods of using the surfactant compositions and solid compositions are provided.

The present invention is related to a water dispersible paper, particularly for use in packages in the construction area. The dispersibility of the paper of the present invention is achieved due to the low wet resistance and high capillary absorption and basically consists of an unbleached cellulose-based paper aiming at the reduction of ingredients conventionally used, adding only defoamers and drainage aids in the formulation thereof. The paper of the present invention consists in the elimination of the use of disintegration aids (such as surfactants), gluing agents and dry resistance agents (such as starch). There is further described a manufacturing process for dispersible paper which allows obtaining a paper having low wet tensile strength and high capillary rise without the need for the chemical agents usually known for the manufacture of this type of paper. The present invention further foresees a package containing said paper for use in construction such as in packages for, lime, sand, cellulosic or synthetic fibers or powder pigments, among others.

The present invention is related to a water dispersible paper, particularly for use in packages in the construction area. The dispersibility of the paper of the present invention is achieved due to the low wet resistance and high capillary absorption and basically consists of an unbleached cellulose-based paper aiming at the reduction of ingredients conventionally used, adding only defoamers and drainage aids in the formulation thereof. The paper of the present invention consists in the elimination of the use of disintegration aids (such as surfactants), gluing agents and dry resistance agents (such as starch). There is further described a manufacturing process for dispersible paper which allows obtaining a paper having low wet tensile strength and high capillary rise without the need for the chemical agents usually known for the manufacture of this type of paper. The present invention further foresees a package containing said paper for use in construction such as in packages for, lime, sand, cellulosic or synthetic fibers or powder pigments, among others.

Methods of and systems for controlling dosing of drainage aid and optionally defoamer to brown stock of a brown stock washing process are provided. Certain embodiments of the invention provide independent control of drainage aid and/or defoamer to brown stock, which tends to provide improved efficiency in dosing each of the drainage aid and the defoamer.

Methods of and systems for controlling dosing of drainage aid and optionally defoamer to brown stock of a brown stock washing process are provided. Certain embodiments of the invention provide independent control of drainage aid and/or defoamer to brown stock, which tends to provide improved efficiency in dosing each of the drainage aid and the defoamer.

Disclosed are an oil-in-water emulsion defoamer and a method for preparing the defoamer. The defoamer may have a dispersed oil phase with a droplet size of 4 to 8 ?m, and a viscosity of 100 to 1000 cP, and is widely used for defoaming in paper coating and wet-end in a paper mill. A method for preparing an oil-in-water emulsion defoamer is also provided. The method may include adding an emulsifying agent to biodiesel, and mixing, then gradually adding hydrophobic fumed silica to obtain a first mixture. The method may also include gradually adding water and a non-ionic surfactant, and stirring until uniform to obtain a second mixture. The method may also include gradually adding the first mixture to the second mixture, and stirring until uniform, to obtain an oil-in-water emulsion defoamer.

Disclosed are an oil-in-water emulsion defoamer and a method for preparing the defoamer. The defoamer may have a dispersed oil phase with a droplet size of 4 to 8 ?m, and a viscosity of 100 to 1000 cP, and is widely used for defoaming in paper coating and wet-end in a paper mill. A method for preparing an oil-in-water emulsion defoamer is also provided. The method may include adding an emulsifying agent to biodiesel, and mixing, then gradually adding hydrophobic fumed silica to obtain a first mixture. The method may also include gradually adding water and a non-ionic surfactant, and stirring until uniform to obtain a second mixture. The method may also include gradually adding the first mixture to the second mixture, and stirring until uniform, to obtain an oil-in-water emulsion defoamer.

Disclosed herein are methods of defoaming industrial process streams, the methods comprising adding to the industrial process stream an emulsion stabilized by Janus particles, wherein the Janus particles comprise at least one hydrophobic surface and at least one hydrophilic surface, and wherein the emulsion comprises silicone emulsion droplets in a continuous aqueous phase. Also disclosed herein are defoamer compositions comprising Janus particles and methods of making such compositions.

Disclosed herein are methods of defoaming industrial process streams, the methods comprising adding to the industrial process stream an emulsion stabilized by Janus particles, wherein the Janus particles comprise at least one hydrophobic surface and at least one hydrophilic surface, and wherein the emulsion comprises silicone emulsion droplets in a continuous aqueous phase. Also disclosed herein are defoamer compositions comprising Janus particles and methods of making such compositions.