3 results about "Total calcium" patented technology

This invention relates to the field of scale inhibitor technology, specifically to a scale inhibition method and scale inhibitor based on the synergistic effect of crystal distortion and dispersion. Water samples are collected from the target water system (cooling tower / circulating water / refrigeration unit), and the concentrations of scale-forming ions such as calcium, magnesium, and iron (Ca²⁺≥150mg / L, Mg²⁺≥80mg / L), pH value (7.5~9.0), and alkalinity (200~400mg / L as CaCO₃) are measured. This invention interferes with the nucleation and growth of calcium carbonate and other crystals through crystal distortion, and prevents crystal aggregation through dispersion. The synergistic effect results in a scale inhibition rate of ≥95% (at a total calcium and magnesium ion concentration of 400mg / L), which is more than 30% higher than traditional 18% phosphate scale inhibitors, increasing the total phosphate content to 21%. Simultaneously, through the synergistic effect of the dispersant and crystal distortion agent, excessive phosphorus release is avoided, eliminating the risk of eutrophication.

The invention relates to a nutritional composition comprising carbohydrates, protein and a fat composition, wherein:(a) the nutritional composition has a total calcium content on dry matter of at least 3.5 g / kg;(b) the protein comprises casein;(c) the nutritional composition has a content of protein-bound calcium of 7.5 mmoles or less per 10 grams of casein; and(d) the ratio NPN to TN is 0.7 or less, with:NPN meaning non-protein nitrogen in the nutritional composition in grams per 100 grams of nutritional composition (g / 100 g); andTN meaning total nitrogen (TN) in the nutritional composition in g / 100 g.The invention further relates to a process for the preparation of the nutritional composition in powder form and to the composition for use in the prevention of gut discomfort and constipation in human subjects, in particular human subjects of 0 to 36 months of age.

This application provides a method, apparatus, and system for detecting the carbon fixation efficiency of calcium-based components and free total calcium in steel slag. The method involves obtaining the following samples: preparing carbonized steel slag powder samples and raw steel slag powder samples; determining the calcium-based compound content parameters: detecting the mass fraction of calcium-based compounds in the raw steel slag powder samples; determining the carbon dioxide release parameters: performing programmed temperature rise tests on the carbonized steel slag powder samples and raw steel slag powder samples under an inert atmosphere to obtain the mass fraction of carbon dioxide released by the decomposition of calcium carbonate in the carbonized steel slag powder samples and raw steel slag powder samples; determining the free total calcium content parameters of each sample; and calculating the carbon fixation efficiency: based on the aforementioned parameters, calculating the carbon fixation efficiency of the calcium-based components and the free total calcium in the steel slag, accurately correcting background carbon interference, establishing a dedicated carbon fixation efficiency detection and calculation system for the inherent calcium-based components and free total calcium in steel slag, and solving the problem of result deviation in existing detection methods.