查询词典 citric acid

They were recovered f rom the ion exchange bed by dilute HCl and , final2 ly , were replaced in the spent HCl by Al to form valuable water t reatment coagulant and recycleable metals. The effects of resin types , flow rate and flow pattern on the IX t reatment and regeneration were determined. Using 0. 2 M citric acid at p H of 3. 0 , more than 90 % of the heavy...

经柠檬酸处理后，污泥中90%以上的重金属被去除；柠檬酸处理液中的重金属用离子交换法回收，考察了树脂种类、流速、操作方式等因素对离子交换、再生效果的影响；在适宜工艺条件下，重金属的交换率均为100%，而洗脱率均接近90%；柠檬酸及离子交换树脂循环使用，重金属也得到回收，降低了处理成本。

The activity of magnesia has been determined and researched by the citric acid method and three different hydrated methods.

采用柠檬酸法和三种不同水化法测定了氧化镁的活性，阐述了氧化镁活性与煅烧温度、煅烧时间之间的关系。

Uses: Suitable for gas adsorption, the decolorization and refining of catalyst carriers and monosodium glutamate, citric acid and oil; used in catalyst of phosgene synthesis; as catalyst carrier for high mercury chloride, vinyl acetate synthesis, etc.

用途： 适用于气相吸附，催化剂载体和味精、柠檬酸、油类的脱色、精制以及光气合成用的触媒、氯化高汞、醋酸乙烯等合成工艺的触媒载体。

A preparation method of nickel oxide-base cathode of fused carbonate fuel cell is to select alkali earth metal oxide, transition metal oxide and rare-earth metal oxide, mix with carbonyl nickel powder in the proportion of 0.01-15.00 mol%, add assistant and mix even into a slurry; after the slurry is formed into a biscuit by doctor-blade casting, sinter it into a multi-porous nickel plate; dissolve lithium nitrate and cobaltous nitrate with mole ratio of Li:Co-1:1 and citric acid or PVA in the distilled water to make a solution with Li of 0.00-0.5 mol/L; immerse the multi-porous nickel plate or nickel oxide plate in the solution, keep for 10-60 minutes under vacuum below 200 millibar, then dry in an oven at 75 degrees centigrade further transfer to a crucible electric furnace preheated 650 degrees centigrade for keeping the temp.

要約 熔融碳酸盐燃料电池氧化镍基阴极的制备方法属于燃料电池领域。选取碱土金属氧化物、过渡金属氧化物和稀土金属氧化物，按0.01－15.00mol％的比例与羰基镍粉混合，加入助剂，混合均匀成浆料；混合浆料流延成型为素坯后烧结为多孔金属镍板；将摩尔比为Li∶Co＝1∶1的硝酸锂和硝酸钴以及柠檬酸或聚乙烯醇溶于蒸馏水中，制成为0.005－0.5mol/L的溶液；将多孔金属镍板或氧化镍板浸入溶液中，在真空度低于200毫巴下保持10－60分钟；置于75℃的烘箱中烘干，转移至预热到650℃坩埚电炉中保温1－10小时；将此过程重复一次或多次即可。

Said method includes the following steps: firstly, adopting dipotassium hydrogen phosphate, magnesium sulfate, calcium chloride, citric acid, ammonium ferric citrate, disodium EDTA, sodium carbonate and minor element solution A5 to prepare culture liquor of nostoc according to a certain ratio; then controlling temp. light intensity and deration condition of the culture liquor to make culture of nostoc; third ste, harvesting nostoc; fourth ste, extracting nostoc polysaccharide; and fifth step, purifying, harvesing and drying nostoc polysaccharide.

首先是配制葛仙米培养液：采用磷酸氢二钾、硫酸镁、氯化钙、柠檬酸、柠檬酸铁铵、乙二胺四乙酸二钠盐、碳酸钠，微量元素溶液A5按比例配制；其次是葛仙米的培养：控制温度、光强、光质、培养液通气条件；第三是葛仙米的收获；第四是葛仙米多糖的提取；第五是葛仙米多糖的纯化、收获与干燥。

The results showed that,through the orthogonal experiments of L9(34) and the single factor experiments of the opuntia and red date juice,the best formula of the compound beverage was 5 to 5,sugar 4%,citric acid 0.03%,and compound stabilizer consisted of 0.2% carboxymethyl cellulose sodium and 0.3% alginate sodium sterilizing temperature was 100 ℃,and sterilizing time was 8～15 minutes.

通过对仙人掌汁和红枣汁配比的单因素试验和L9(34)正交试验结果表明，食用仙人掌红枣复合饮料的最佳工艺配方为：仙人掌红枣复合汁的配比为5∶5，加糖量为4%，加柠檬酸量为0.03%，复合稳定剂加入量为羧甲基纤维素钠0.2%+海藻酸钠0.3%，杀菌温度为100℃，杀菌时间为8～15min。

CYMBOPOGON SCHOENANTHUS EXTRACT, ROSMARINUS OFFICINALIS LEAF EXTRACT, ZINGIBER OFFICINALE ROOT EXTRACT, MELISSA OFFICINALIS LEAF EXTRACT, CAMELLIA SINENSIS LEAF EXTRACT, TRITICUM VULGARE AMINO ACIDS, ORGANIC LAVANDULA ANGUSTIFOLIA OIL, ORGANIC ORIGANUM MAJORANA OIL, ORGANIC CHAMAEMELUM NOBILE OIL, ORGANIC CANANGA ODORATA OIL, GLYCERINE, POTASSIUM SORBATE, CETYL HYDROXYETHYLCELLULOSE, SODIUM HYDROXYMETHYLGLYCINATE, DISODIUM EDTA, CITRIC ACID.

叶提取物，迷迭香叶提取物，生姜根提取物，芳香薄荷叶提取物，绿茶叶提取物，小麦氨基酸，薰衣草油，罗马甘菊油，马约兰花油，伊兰伊兰油，甘油，山梨酸钾，羟甲基甘氨酸钠，乙二胺四乙基二钠，柠檬酸

In the dark conditions, the addition of citric acid could improve the stability of perilla pigment in green plum fruit wine.

在避光条件下，添加柠檬酸能提高紫苏色素在青梅酒中的稳定性。

In addition, stay away from prepackaged iced teas because they contain citric acid and high amounts of sugars.

此外，远离预先冰镇茶，因为它们含有柠檬酸，大量的糖。

Citric acid can be used as durable press agent of natural fiber fabrics.After during pad-dry-cure technique ,ester crosslinking was formed between CA and fiber.

柠檬酸CA可作为棉、麻、丝等天然纤维的耐久压烫整理剂，经轧烘焙工艺后，与天然纤维很快地形成酯交联。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。