拜耳法赤泥沉降槽的技术改造

研究内循环自稀释技术在拜耳法普通赤泥分离沉降槽中的试验应用情况。实践证明普通赤泥分离沉降槽的产能可以提高15.2%,清液层增加84.6%,溢流浮游物降低38.9%。     

海带饮料的稳定性研究

采用不同的增稠剂对海带饮料的稳定性进行研究,结果表明:琼脂、黄原胶添加到海带饮料中能起较好的稳定效果.影响海带饮料稳定性的4个因素中,混合磷酸盐影响因子最大,其次为黄原胶、琼酯、海带浓度.实验较佳配方为黄原胶0.15 %,混合磷酸盐0.012 %,琼酯0.15 %,海带浓度0.3 %(干品计)时,制成的海带饮料分布均匀,色泽适中,口感好.     

全尾矿浓密压密区细观结构研究

为对全尾矿浓密压密区的细观结构进行三维表征和定量化研究，使用显微CT对压密区进行了扫描，基于体绘制方法进行了絮团和孔隙结构的三维重构，并对絮团分形维数、絮团面积率、孔隙分支数量、孔隙尺寸、孔隙连通密度等参数的变化规律进行研究。结果表明：①压密区絮团体积所占比重较大，并且絮团连通性较好，絮团面积率与絮团分形维数的变化趋势相反；②绝大部分孔隙的分支数目不超过2个，分支长度大多较短小；③压密区孔隙结构数量众多，但孔隙基本较小，体积小于500 μm³的孔隙占98.6%，表面积小于500 μm²的孔隙占97.6%，孔隙结构的连通性不佳，连通密度最高为0.000 218。通过压密区絮团结构和孔隙结构的三维重构，以及对孔隙与絮团各项结构参数的分析，有利于进一步揭示全尾矿浓密压密区细观结构规律。     

微细粒钛铁矿浓缩分级试验研究

微细粒级钛铁矿的脱泥和浓缩是攀枝花钛资源微细粒级回收的关键技术之一 ,本研究用CZI - 1 0 0高效脱泥浓缩旋流器进行了各种条件试验 ,确定了旋流器合理几何参数、分级工艺参数 ,成功解决了微细粒脱泥浓缩的技术问题。     

经编有光涤纶织物的全涂料两次印花

利用全涂料两次印花法,可在经编有光涤纶织物上获得仿提花图案,本文分析了影响仿提花效果的主要因素,如织物组织、黑白稿、网版、粘合剂以及工艺流程等。     

Rheological properties of Salecan as a new source of thickening agent

Salecan is a novel soluble glucan produced by Agrobacterium sp. ZX09, displaying the ability to inhibit pancreatic amylase and reduce postprandial glucose. The research here provides an investigation of the rheological properties of Salecan solution over a wide range of shear rate (0.001–1000 s⁻¹), frequency (0.1–100 rad/s), concentrations (0.3%, 0.5%, 1.0% and 1.5%), temperature (5–95 °C) and pH (1.0–13.0). The power law model well described the rheological behavior of the solutions, in the shear-thinning region, with high determination coefficients, R². Salecan solutions showed a non-Newtonian viscosity behavior at all concentrations and temperatures. The solutions exhibited excellent stability below 55 °C. Viscosities were not affected after being frozen (−20 °C). Over a wide pH range from 6.0 to 12.0, the viscosity almost kept invariant. With increasing frequency, the storage and loss moduli G′ and G″ of Salecan solution increased and complex viscosities decreased continuously, which showed an elastic behaviour. All data indicated that Salecan has excellent rheological properties and could be utilized in food industry as a new source of thickening agent.     

Effect of pH and Temperature on the Viscosity of Texturized and Commercial Whey Protein Dispersions

Apparent viscosity (η_a) of texturized whey protein concentrate (tWPC80) produced using supercritical fluid extrusion process was compared with commercial WPC-80 as a function of pH (3.0 to 9.0) and heating temperatures (25 to 80°C). The tWPC80 exhibited shear thinning behavior and yielded 2 to 10-folds higher η_a than commercial WPC-80 at all pH and temperatures studied. The η_a of tWPC80 decreased as pH was increased from 3.0 to 9.0. The η_a of both samples was always higher at pH 3.0 than at pH 7.0 due to acid-induced aggregation in the former. The ability of the tWPC80 to perform as a food thickening agent was also compared with other commercial thickeners. The tWPC80 offers as a desirable ingredient for many food formulations currently utilizing starches and polysaccharides as texture modifying agents.     

MMH的结构与提粘提切机理研究

本文利用Ｘ射线衍射仪，微电泳仪对ＭＭＨ的晶体结构，等电点（ＩＥＰ）进行了研究。结果表明，ＭＭＨ是属于六方晶系的晶体，其表面电荷密度的理论值是蒙脱土的２—４倍，表面羟基呈碱性；ＭＭＨ提粘提切机理：一是ＭＭＨ同蒙脱土的静电引力；二是两种颗粒表面羟基的氢键化作用，这两种作用是协调一致的。     

尾矿浓缩池跑泥改进措施探讨

对梅山铁矿尾矿浓缩池出现跑泥的原因进行了分析，提出了防止跑泥的具体措施。     

低压片状模塑料增稠工艺研究

采用氧化镁为增稠剂、结晶树脂以粉料形式加入而降低片材热模内粘度的工艺,改进了对低压片状模塑料的增稠方法。结果表明：采用此工艺,设备不需要加热,增稠符合传统SMC增稠曲线;片材在模腔内有较低的粘度,适宜于低压成型。