Foaming thermoplastic material beads - which contain blowing agent by exothermic reaction with calcium oxide and waterThe beads, pref. of polystyrene, are foamed directly by contact with powdered fired chalk and water esp. an aq. binder dispersion/soln. such as a PVAc dispersion or a hydraulic ...
calcium oxide dispersed therein, one or both of said aqueous and non-aqueous compositions containing an active depilatory agent or each of said aqueous and non-aqueous compositions containing reagents which, when brought into contact, react to produce an active depilatory agent, said aqueous and non...
A calcium oxide sorbent process for bulk separation of carbon dioxide The possibility of the simultaneous occurrence of the water-gas shift reaction and CO[sub 2] separation is of particular interest in Phase II. ... Harrison, D P,A Silaban,M Narcida,... 被引量: 19发表: 1992年 加载更...
Lime reacted at various times and temperatures. CaO/fly ash = 1:4; water/binder = 0.5.(From: Buttler FG, Walker EJ. The rate and extent of reaction between calcium hydroxide and pulverised fuel ash. In: Proceedings of the use of PFA in concrete, Leeds, 14–16 Apr. 1982, vol. I...
The reaction between an acid and an alcohol in the presence of concentrated sulfuric acid to produce ester and water, in essence, is the reaction of carboxyl groups with hydroxyl groups to produce ester groups and water. Such as: Hydrolysis reaction. The substitution of -OH or -H in water ...
reaction between a starting material (mineral concentrate or industrial waste) with chlorine in order to produce some volatile chlorides, which can then be separated by, for example, selectivecondensation. The most desired chloride is purified and then used as a precursor in the production of ...
it presents a unique scenario with two α-carbons. When the HAT process takes place on the α-carbon atom between the carbonyl group and the aromatic ring (C1), electrons of the radical can be more delocalized because of the proximity to the π-system of the aromatic ring, as compared to...
Molecular dynamics simulations indicated that the long-range electrostatic interaction between active centres and lithium polysulfides promoted the formation of a dense phase consisting of Li+ and Sn2− (2 < n ≤ 6), and the collective charge transfer in the dense phase was further ...
Hantzsch reaction or Hantzsch dihydropyridine synthesis is a multi-component organic reaction between an aldehyde, 2 equivalents of a β-keto ester, and a nitrogen donor (Scheme 15.41). This reaction allows the preparation of dihydropyridine derivatives. Subsequent oxidation or dehydrogenation gives pyridi...
Furthermore, the trophic linkages between primary producers and zooplankton are arguably the most important in aquatic food webs, as their interactions control the flow of energy to higher trophic levels. Grazing (ingestion) sets an upper limit to all other physiological rates, and is one of the...