Abstract:
Use of copolymers comprising alkylene oxide units, which copolymers comprise incorporated randomly or blockwise by polymerization (a) 50 to 93 mol % of acrylic acid and/or a water-soluble salt of acrylic acid, (b) 5 to 30 mol % of methacrylic acid and/or a water-soluble salt of methacrylic acid and (c) 2 to 20 mol % of at least one nonionic monomer of the formula I where the variables have the following meaning: R1 hydrogen or methyl; R2 a chemical bond or unbranched or branched C1-C6-alkylene; R3 identical or different unbranched or branched C2-C4-alkylene radicals; R4 unbranched or branched C1-C6-alkyl; n 3 to 50, as additive to phosphate- and/or phosphonate-comprising aqueous systems in industrial technical plants.
Abstract:
A composition for use as a processing aid in the concentration of whole cheese whey and in the recovery of lactose from cheese whey by a separation process followed by a concentrating process via reverse osmosis filtration or evaporation, wherein, in one embodiment, the composition includes a sodium hexametaphosphate having phosphate chain lengths of 12 to 28 in combination with tetrasodium or tetrapotassium pyrophosphate. In another embodiment, a blend of sodium hexametaphosphate is employed having a phosphate chain lengths of 12 to 14 in one instance and 21 to 28 in another instance. The composition results in increased yields of lactose and an easily removable scale from processing equipment-mainly heat transfer equipment. A method of employing the processing aid composition is also presented.
Abstract:
An improved process in the production of sugar is provided by adding to a sugar solution prior to crystallization calcium acid phosphate, followed by the addition of soda ash. Optionally, in a third step sodium hydrosulfite is added. The resulting sugar is of a high grade, being light colored and substantially free of impurities.
Abstract:
Polymeric compositions useful for preventing formation of scale in apparatus used for evaporating sugar juices comprise a mixture of at least three polymers selected from polyacrolein or - methacrolein compounds, poly-acrylic or - methacrylic compounds, copolymers of the foregoing compounds, polyacrylamides and polymers of maleic anhydride alone or together with vinyl methyl ether, at least one of said polymers being present in an amount of at least 10% by weight and at least two of said polymers each being present in an amount of at least 5% by weight based on the total amount of said polymers.
Abstract:
Disclosed is a method for manufacturing sugar from sugarcane. The method consists of steps of dosing biocides on sugarcane during cane preparation and milling to kill about 90% of microbes; heating juice, obtained from a mill to 70° C.; subsequently, neutralizing the juice; subsequent to the neutralizing step, heating the neutralized juice to about 105° C.; subsequent to the neutralizing step, passing the heated neutralized juice through clarifiers or settling tanks; concentrating the neutralized juice by evaporating to boil-off water from the neutralized juice to obtain syrup of the neutralized juice having about 60% solids; crystallizing the syrup, obtained in the concentrating step, to obtain a liquor; separating the sugar from the liquor obtained in the crystallizing step; and washing and drying the sugar obtained in the separating step. The sugar thus produced is about neutral and contains substantially zero amount of sulfur.
Abstract:
The present invention provides a method for manufacturing sugar, which short-circuits at least one sulfitation step and utilizes means for minimizing microbe/microorganism activity and reducing the impurities in the sugar.
Abstract:
Use of copolymers comprising alkylene oxide units, which copolymers comprise incorporated randomly or blockwise by polymerization (a) 50 to 93 mol % of acrylic acid and/or a water-soluble salt of acrylic acid, (b) 5 to 30 mol % of methacrylic acid and/or a water-soluble salt of methacrylic acid and (c) 2 to 20 mol % of at least one nonionic monomer of the formula I where the variables have the following meaning: R1 hydrogen or methyl; R2 a chemical bond or unbranched or branched C1-C6-alkylene; R3 identical or different unbranched or branched C2-C4-alkylene radicals; R4 unbranched or branched C1-C6-alkyl; n 3 to 50, as additive to phosphate- and/or phosphonate-comprising aqueous systems in industrial technical plants.