Cane sugar milling

Component Raw cane sugar White refined cane sugar Mill white Blanco Directo Brown cane sugars... 

The complex, once recovered, can be readily split by reacting it with ethanol at elevated temperature in the presence of an ion exchange resin. This leads to ethyl acetate, tri-ethylamine, and water. It is noted that many furfural plants are parts of cane sugar mills since they use bagasse as the raw material. Given the fact that such mills make molasses as a byproduct, they usually have an ethanol plant to use the molasses, so that the ethanol needed for the esterification is an in-house commodity. The ethyl acetate represents a profitable byproduct. 

Vol. 1. Standard Fabrication Practices for Cane Sugar Mills (Delden)... 

Color Formation in Sugar Solutions under Simulated Cane Sugar Mill Conditions, M. L. Wolfrom, W. W. Binkley, and J. N. Schumacher, Ind. Eng. Chem., 47, 1416-1417 (1955). 

Classification Quaternary ammonium sait Empirical C23H42N Cl Properties Water-sol. cationic Toxicology Causes dermatitis TSCA listed Uses Antimicrobial, antistat, surfactant in cosmetics antimicrobial for foods, pharmaceuticals, cane-sugar mills Features Effective against bacteria but not yeast... 

Uses Intermediate for cationic surfactants softener/antistat in hair conditioners germicide in foods, water treatment (duckweed killer), petroleum, textiles dispersant in paints antistat/disinfectant in plastics, pulp/paper dye leveling agent antimicrobial, preservative in foods, cosmetics antimicrobial in cane-sugar mills, pharmaceutical topicals organophilic surf, treatment agent in bentonite in food-pkg. adhesives... 

Some cane sugar mills produce white sugar by using sulfitation, carbonation, or, more recently, more complex processes such as Blanco Directo. 

In a sugar mill, sugar cane is shredded, mixed with water and crushed between rollers. The resulting juice contains 7-11% sucrose, C12H22On. As-... 

Fio. 2.—Typical process flowchart for (A) production of raw sugar at a cane factory (or mill), and (B) production of white cane sugar at the cane refinery. Note Variations occur from company to company extensive recycling is not shown. 

SUGAR MILL The term applied to a sugar cane factory, where sugar cane stalks are converted into raw sugar, or to the equipment that mechanically crushes and pulverizes the sugar cane stalks prior to extraction of the sugar-containing juices. 

The injected fluids include the effluent from a sugar mill and the waste from the production of furfural, an aldehyde processed from the residues of processed sugar cane. The waste is hot (about 75°C to 93°C), acidic (pH 2.6 to 4.5), and has high concentrations of organics, nitrogen, and phosphorus.173 The waste is not classified as hazardous under 40 CFR 261, and the well is currently regulated by the State of Florida as a nonhazardous injection well. The organic carbon concentration exceeds 5000 mg/L. 

The sugar mill in this case study is the most important sugar producer in Mexico and produces milled sugar cane of around 3 million tons per zafra (6 months of work period). This sugar mill is part of FEESA (Association of sugar producers) together with other 20 sugar mills in Mexico. 

One offers oils and other greases to be applied in different process areas in the sugar mill industry. There are around 20 different products, and they are applied in different points like pumps, sugar cane conveyors, bearing turbogenerators, speed reducers and others. The aim is to identify opportunities to apply Chemical Leasing in other points of the process, and identify the payment index (for example per work hours). 

In this business case there are two suppliers who provide the lubricants to the Mexican sugar mills. The lubricant is delivered to the sugar mill and collected and recycled by the service providers. The machines in the sugar mill are operated by the user. The basis of payment is the amount of sugar cane milled therefore the unit of charge is based on the function of the used lubricants (Fig. 7). 

In the initial stages of purification, sucrose is recovered in juice form by crushing cane stalks or by extraction of sliced sugarbeets (cossettes) with hot water. The resulting solutions are clarified with lime, then evaporated to thick syrups from which sugar is recovered by crystallization. The final syrup obtained after exhaustive crystallization of sucrose is known as molasses. Enhanced recovery of sucrose from beet molasses is accomplished by ion-exclusion chromatography, a process used in some sugar mills in the United States, Japan, Finland, and Austria. 

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