食用葡萄糖酸钠的应用范围！
来源：http://www.jnjdbc.com 日期：2021-03-12 发布人：admin
葡萄糖氧化制备葡萄糖酸钠的五种方法，除酶法之外，其余四种生产工艺目前在我国均有广泛研究。在工业化生产上，生物发酵法和多相催化氧化法应用较多。从上表我们可以很容易看出在生产成本、生产周期和生产设备要求上看，生物发酵法和多相催化氧化法具有一定的优势，但从纯度和降耗方面来看，酶法是五种方法中比较好的，酶法工艺的突出优越性，已经引起广大科研工作者很大的兴趣和众多葡萄糖酸钠企业的关注。许多学者预计，采用葡萄糖氧化酶作催化剂，用空气氧化的方法制取葡萄糖酸钠将是今后的发展方向。但现在由于酶制剂昂贵，酶法现在还没有广泛应用到工业化生产中。
There are five methods to prepare sodium gluconate by oxidation of glucose, and the other four methods are widely studied in China. Biological fermentation and heterogeneous catalytic oxidation are widely used in industrial production. From the above table, we can easily see that in terms of production cost, production cycle and production equipment requirements, biological fermentation method and heterogeneous catalytic oxidation method have certain advantages, but in terms of purity and energy saving, enzymatic method is the better of the five methods. The outstanding advantages of enzymatic process have aroused great interest of the majority of scientific research workers and many sodium gluconate enterprises Attention from the industry. Many scholars predict that it will be the future development direction to use glucose oxidase as catalyst and air oxidation to produce sodium gluconate. However, due to the high price of enzyme preparation, enzyme method has not been widely used in industrial production.
1.葡萄糖酸钠的应用领域
1. Application fields of sodium gluconate
（1）用做水泥掺合剂；（2）用作水质稳定剂；（3）用作钢铁表面清洗剂；（4）作玻璃瓶专用清洗剂；（5）用于医药方面和食品添加剂方面，它主要通过调节人体内酸碱平衡，以恢复神经正常作用；（6）可用于电镀，胶卷制造等许多工业领域。
(1) It can be used as cement admixture; (2) as water quality stabilizer; (3) as cleaning agent for steel surface; (4) as special cleaning agent for glass bottle; (5) as medicine and food additive. It can restore normal nerve function by adjusting acid-base balance in human body; (6) it can be used in many industrial fields such as electroplating, film manufacturing, etc.
2.葡萄糖酸钠与外加剂的关系
2. The relationship between sodium gluconate and additives
外加剂一般包括减水剂、缓凝剂、速凝剂、早强剂、引气剂、泵送剂等，而葡萄糖酸钠是减水剂、缓凝剂、泵送剂等外加剂的主要原料。外加剂是指能有效改善混凝土某项或多项性能的一类材料。其掺量一般只占水泥量5%以下，却能够对混凝土的和易性、强度、耐久性或调节凝结时间及节约水泥。外加剂的广泛应用使得混凝土技术飞速发展，技术经济效益十分显著，使得高强高性能混凝土的生产和应用成为现实，并了许多工程技术难题。
Admixtures generally include water reducer, retarder, accelerator, early strength agent, air entraining agent, pumping agent, etc., while sodium gluconate is the main raw material of water reducer, retarder, pumping agent and other admixtures. Admixture is a kind of material that can effectively improve one or more properties of concrete. Generally, its content only accounts for less than 5% of the cement content, but it can affect the workability, strength and durability of concrete or adjust the setting time and save cement. The wide application of admixtures makes the rapid development of concrete technology, and the technical and economic benefits are very significant, which makes the production and application of high strength and high performance concrete become a reality, and solves many engineering and technical problems. 
3.葡萄糖酸钠在混凝土中的应用
3. Application of sodium gluconate in concrete
葡萄糖酸钠近几年来在建筑工程混凝土领域中的应用效益十分乐观，我们知道，目前的高层及高层建筑工程建设中商品混凝土须加入外加剂，但掺入外加剂后，混凝土的坍落度损失比未掺外加剂前更加严重，尤其是掺加减水剂后混凝土的坍落度只能保持十几分钟到半小时，给施工队造成了困难。这个问题已有一些研究成果，通常采用的技术路线有两类：一类是外加剂掺加方法，另一类是复合缓凝剂。减水剂与缓凝剂复合以坍落损失的方法已被普遍接受，该方法的理论基础是延缓水泥早期化产物的形成达到抑 制坍落度损失。
In recent years, the application benefit of sodium gluconate in the field of building engineering concrete is very optimistic. We know that in the current high-rise and high-rise building engineering construction, commercial concrete must be added with admixtures, but the slump loss of concrete is more serious after adding admixtures, especially after adding superplasticizer, the slump of concrete can only be maintained for more than ten minutes Half an hour, causing difficulties to the construction team. There are some research results to solve this problem. There are two kinds of technical routes commonly used: one is the method of adding additives, the other is the composite retarder. The method of compounding water reducer and retarder to solve the slump loss has been generally accepted. The theoretical basis of this method is to delay the formation of cement early products to inhibit the slump loss.
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