Deflocculating agent

Deflocculating Agent An adjuvant which inhibits precipitation or the settling of solids in the suspension fluid. 

What precautions could be taken to prevent the take up of impurities when reducing the particle size of zirconia from 10 pm to 1 pm Describe the beneficial effects that addition of a deflocculating agent might be expected to have on the ball-milling process. 

Esterification of succinic anhydride in dimethylformamide with 4-dimethylaminopyridine gives O-succinoylated inulin (Vermeersch and Schacht, 1985), which can be used as a drug carrier. Esterification of alkenyl succinic anhydrides having chain lengths of C8 to C20 in dimethylformamide, with or without a catalyst, produces potential deflocculating agents for use in detergents... 

A study of deflocculating agents used in particle size determination of soils. Proc.. A. S.T.M., 38 (Part 2) 575-586. 

The rate of body formation also depends on the deflocculation of the slip perfectly peptized suspensions produce a dense and strong body, although this takes a longer time to form because of the dense packing of particles involved. In practice, a suitable compromise is usually made by using an optimum combination of deflocculating agents. 

Use Sequestering and deflocculating agents, primarily in water treatment, food processing, and cleaning compounds heavy-set detergent builders. 

This section describes only the influence produced on the flotation process by two main surfactant types—foamers and collectors. Meanwhile, there is a complex of compoimds used in real processes pH adjustment, hydrophilisation of surfaces, water softeners , high-molecular compounds (flocculating as well as deflocculating agents), and others. The choice of flotation modes and bouquets of reagents is determined in every particular case depending on mineral composition of raw materials (nature of solids), water quality, aeration intensity and other factors. 

Although sodium triphosphate can be used as a dispersing and deflocculating agent, the presence of more than about 0.5% P2O5 in the raw material input to a portland canent furnace (e.g. in some phosphatic limestones) will decrease the yield of the most cementitious component of the product, that is, 3CaO Si02 ( C3S ). 

A slip is prepared by ballmilling for several hours and removing any entrained air by evacuation. It is helpful to use a deflocculating agent. Sano, with other workers has reported on slip casting [168-172]. 

See dispersant (dispersing agent). Also known as deflocculating agent. 

Deflocculating agent n. A substance that breaks down agglomerates into primary particles or prevents the latter from combining into agglomerates (ISO). 

The sodium gel is soluble and probably acts as a protective colloid, hence it is possible to have a suspension of clay formed that is relatively stable. However too great concentrations of the deflocculating agent may cause recoagulation and precipitation of the mixture. Tannin acts as a deflocculant for clays containing iron. It appears to take... 

Deflocculant de- fla-kyo- lat An additive that prevents pigments in suspension from coalescing to form floes. See Dispersant ( Dispersing Agent). Also known as Deflocculating Agent. 

Anionic polyelectrolytes are very effective deflocculating agents for suspensions of bariiun titanate. Properties of ceramic slip are affected by pH. In alkaline pH, interaction occurs through electrostatic mechanism. ... 

Common deflocculating agents used in the ceramics industry include trisodium phosphate, sodiiun silicate, and sodiumhexametaphosphate. Recent work with acrylate defloculants has shown considerable promise. 

Deflocculated Castables Deflocculating castables contain at least one deflocculating agent in addition to a cement. They should also contain a minimum of 2% by weight of ultrafine particles. These are particles less than one micron in size. 

Deflocculated Castables As the name suggests, deflocculated castables contain deflocculating agents. They are used in the shotcreting process. 

Uses Water softener, sequestrant, peptizer, deflocculating agent dispersant of clay and other mins, and insol, salts scale inhibitor for CaCOj and other scales corrosion inhibitor of ferrous metal corrosion used in laundry, dishwash, and industrial detergents, tile mfg, textile processing, paper mfg., cement mfg, pigment dispersant in paints scale/corrosion inhibitor, sequestrant for water treatment... 

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