磷酸二氢钙

混合法生产磷酸二氢钙

Production of MCP by mixing process

研究结果表明，鲤鱼对不同磷源磷的表观消化率存在显著差异（P0.05）。磷酸二氢钙的表观消化率最高，在5种磷源中，其是最高效、经济的磷源。

The results showed that the AD of different phosphate were significantly different and the monocalcium phosphate is the effective and economical phosphorus source .

磷酸二氢钙（MCP）是一种优良的高效性磷酸盐饲料添加剂。

MCP ( monocalcium phosphate ) is a sort of excellent high-quality phosphate feed additive .

湿法磷酸干法直接生产饲料级磷酸二氢钙（MCP）中试试验研究

Middle-Experimental Study on Production of Feed-Grade MCP Directly by Dry Process of Wet - Process Phosphoric Acid

8周的养殖试验结果显示，在豆粕型饲料中用中性植酸酶替代磷酸二氢钙后，对各试验组花鲈的生长、鱼体成分和蛋白质消化率均无显著影响（P0.05）；

The results showed that replacing Ca ( H_2PO_4 ) _2 with neutral phytase had no significant effect on growth performances , fish body composition and apparent digestibility coefficients ( ADC ) of protein and phosphorus ( P ) of sea bass ( P0.05 ) .

本文旨在研究豆粕型饲料中用中性植酸酶替代不同水平的磷酸二氢钙，对花鲈（lateolabraxjaponicus）生长和磷代谢及利用的影响。

The experiment was conducted to evaluate the effects of neutral phytase on growth performances and metabolism of phosphorus of Japanese sea bass ( Lateolabrax japonicus ) fed with soybean meal-based diets .

应用机械化学原理，研究了在振动磨样机中由磷酸二氢钙（MCPM）和氢氧化钙合成羟基磷灰石（HAP）过程的动力学机制，并建立了相应的动力学模型。

The kinetic mechanism of the synthesis of hydroxyapatite ( HAP ) from monocalcium phosphate ( MCPM ) and calcium oxide in vibratory mill was studied by using mechanochemical principle , and a corresponding kinetic model was established .

在25℃恒温培养条件下，采用离子交换树脂膜（IERM）连续提取法研究了不同肥料（尿素、氯化钾、磷酸二氢钙、缓释复合肥）养分（氮、磷、钾）在土壤中的变化。

Ion Exchange Resin Membrane ( IERM ) method was adopted to study the changes of three nutrients ( N , P and K ) from four fertilizers ( urea , potassium chloride , calcium phosphate and slow-release-compound fertilizer ) in a continuous soil incubation experiment at 25 ℃ .

硫化烷基酚钙添加剂的组成分析及结构饲料添加剂磷酸二氢钙

Component Analysis and Chemical Structure of Sulfurized Calcium Alkyl Phenolate Lubricant Additive

磷酸二氢钙及其混合物原料工艺路线选择

Selection of Process Routes of Calcium Dihydrogen Phosphate and Its Composition Production

一种脱磷絮凝剂处理磷化废水的试验研究低浓度泥磷磷酸生产饲料添加剂磷酸二氢钙的试验

Experimental Study of Removal of Phosphorous in Phosphating Wastewater by a Phosphorus-Removing Flocculant

分光光度法测定磷酸二氢钙中磷含量主要营养成份有玉米、豆粕、维生素、微量元素、氨基酸、钙、磷等等。

Determination of Phosphorus in Calcium Biphosphate by Spectrophotometry Its main nutrient contents are corn , vitamine , aminophenol and so on .

磷酸二氢钙清液与硫酸钾溶液混合，便生成磷酸二氢钾和难溶性的硫酸钙沉淀。

The clean calcium dihydrogen phosphate is mixed with potassium sulfate solution and the potassium dihydrogen phosphate and calcium sulfate precipitate are formed .

结论：①饲料中添加无机矿物磷能显著改善草鱼体的生长及健康状况，且磷酸二氢钙的效果优于磷酸氢钙。

CONCLUSION : ① inorganic mineral dietary phosphorus significantly helps to improve the growth and health of grass carp ; calcium dihydrogen phosphate is better than DCP .

磷酸氢钙与酸化剂的复合使用能明显改善草鱼的生长，但不如磷酸二氢钙的使用。

The compound use of dicalcium phosphate and acidification can improve the growth of grass carp , but not as good as the use of calcium dihydrogen phosphate .

其过程主要包括：用石灰乳（或碳酸钙粉）中和粗磷酸，在一定的条件下除去大量杂质，得磷酸二氢钙清液；

Which mainly includes : ① crude phosphoric acid is neutralized by lime milk , the plenty impurities are removed under a certain condition and the clean calcium dihydrogen phosphate solution is obtained ;

由以上结果可知：①草鱼的生长速度随着饲料中磷酸二氢钙含量的增加而提高，当添加量达到一定水平后生长速度保持稳定。

These results show that : ① the growth rate of grass carp goes with the increase of monocalcium phosphate , but when added to a certain level , the growth rate remains stable .

三种无机磷肥处理每盆植株吸磷量、植株含磷量和磷肥利用率，以焦磷酸钠提高的最多，其次是磷酸，最少的是磷酸二氢钙。

Plant uptake of P for three inorganic phosphates per pot , plant phosphorus content and phosphorus utilization raised and was in the order : sodium pyrophosphate maximum , followed by orthophosphoric acid and calcium biphosphate .

过磷酸钙是目前使用广泛的化肥产品，其由硫酸分解磷灰石再经熟化制得的，其主要成分为磷酸钙和磷酸二氢钙。

Single Superphosphate is chemical fertilizer products which have extensive useful at present , it obtained by apatite which decomposed from the sulfuric acid and then ripened , and its main ingredients is calcium phosphate primary and calcium phosphate .

低浓度处理的对照、碳酸氢铵、磷酸二氢钙3组中，绿磺隆降解曲线亦均遵从抛物线扩散方程，半衰期分别为19.2、81.6、10.8d。

The degradation curves of chlorsulfuron of three treatments when sand samples were spiked with 33 μ g / g chlorsulfuron also followed parabola equation , and the half-lives of chlorsulfuron were 19.2 , 81.6 , and 10.8 days , respectively .

结果表明：在聚乙烯醇、聚丙烯酰胺和聚乙二醇作用下土壤磷吸附动力学以幂函数方程为最优方程，且方程参数与单施磷酸二氢钙的处理方程参数有显著差异性。

The results indicated that power-function model had been interpreted as an optimum indication of P adsorbed process in virtue of the compounds application , and the parameters in model of the compounds treatments were significantly different from that of the treatment alone applied monocalcium phosphate ( MCP ) .