Water bleed

BURCOFIX FR-30 is used to increase the wetfastness of direct, develop, reactive and acid dyestuffs on cotton, rayon, wool, and their blends. It also decidedly improves the fastness to cold water bleeding, sea water, perspiration, and prevents migration of the above mentioned dyes during drying. 

POMOFIX VK 75 also improves dye fastness to cold water bleeding, perspiration, migration, and wet ironing. 

POMOFIX G48 is a resinous aftertreating agent used to improve the wet fastness of direct, develop, and fiber reactive dyes on cotton and rayon. In addition to improving the washfastness, POMOFIX G48 also improves the fastness to cold water bleeding, perspiration, migration, and wet Ironing. 

Karaya is used in percentages of from 0.2 to 0.4 in the manufacture of ice pops and sherbets. The function of the gum in these products is the prevention of water bleeding and also the prevention of the formation of large ice crystals. The large water-absorbing and water-holding capacities of karaya make it useful in this role. 

The addition of microfibrillar cellulose increases the paste thixotropy both with and without plasticizer. Microfibrillar cellulose helps to make a self-compacting concrete more robust. Water bleeding and aggregate settlement are diminished and thus concrete durability properties are increased. Water bleeding is effectively prevented with the finest fibril additives. The aggregate settlement is also drastically decreased with microfibrillar cellulose (20). 

In the one-stage process (Fig. 2), ethylene, oxygen, and recycle gas are directed to a vertical reactor for contact with the catalyst solution under slight pressure. The water evaporated during the reaction absorbs the heat evolved, and make-up water is fed as necessary to maintain the desired catalyst concentration. The gases are water-scmbbed and the resulting acetaldehyde solution is fed to a distUlation column. The tad-gas from the scmbber is recycled to the reactor. Inert materials are eliminated from the recycle gas in a bleed-stream which flows to an auxdiary reactor for additional ethylene conversion. 

The wet ester is distilled in the dehydration column using high reflux to remove a water phase overhead. The dried bottoms are distilled in the product column to provide high purity acrylate. The bottoms from the product column are stripped to recover values and the final residue incinerated. Alternatively, the bottoms maybe recycled to the ester reactor or to the bleed stripper. 

The FD C certified colors are all water-soluble dyes, but can be transformed into insoluble pigments known as lakes by precipitating the dyes with alurninum, calcium, or magnesium salts on a substrate of aluminum hydroxide. The lakes are useful in appHcations that require color whereas in dry form, such as cake mixes, or where water may be present and bleeding is a problem, such as food packaging. FD C Red Lake No. 3 was deHsted in Febmary... 

A bleed from the scmbbing system is sent to a sour slurry stripper. The water is then clarified and can be recycled to minimize the volume of effluent to be biotreated and discharged or evaporated. The acid gas from the acid gas removal system and from the sour slurry stripper is fed to a Claus plant, where salable elemental sulfur (qv) is produced. For maximum sulfur recovery and minimal sulfur emissions, the Shell Claus off-gas treating process (SCOT) is used. 

Lakes are iasoluble ia most solvents, although some bleeding or leaching may be observed ia solvents ia which the unlaked dye is soluble. FD C lakes are iasoluble ia water ia the pH range of 3.5—9.0, but outside this range, the lake substrate tends to dissolve releasiag the captive dye. 

The function of the trap is to condense the hexane from the n-butyl-lithium solution. The checkers used a 1-L three-necked flask fitted with a short delivery tube (a quick fit air bleed tube was used), stopper, and rubber tubing connection. The submitters used a water aspirator and a 1-L filter flask with a drying tower between. 

Thermal-Hydraulic Analysis must be extended to at least 24 hours into the accident. This study used calculations for feed-and-bleed operation with a charging pump, and with gravity teed from the refueling water storage tank (RWST),... 

The correct way to light a furnace (hot or cold) that bums gas or burns light oil is to start with a positive isolation, such as a slip-plate, in the fuel line. Other positive isolations are disconnected hoses, lutes filled with water (if the fuel is gas at low pressure), and double block and bleed valves closed valves without a bleed are not sufficient. Then ... 

Figure 6-32 illustrates ejector systems with large condensable loads which can be at least partially handled in the precondenser. Controls are used to maintain constant suction pressure at varying loads (air bleed), or to reduce the required cooling water at low process loads or low water temperatures [2]. The cooler W ater must not be throttled below the minimum (usually 30%-50% of maximum) for proper contact in the condenser. It may be controlled by tailwater temperature, or by the absolute pressure. 

The amount of bleed-off required would depend on the nature of the make-up water and the type of conditioning chemicals used. The specialist tower manufacturer, conditioning chemical supplier or water-treatment consultant will advise the maximum concentration factor (the ratio of circulating water concentration to make-up water concentration) which can be allowed. The necessary bleed-off is then given by ... 

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