精制

They are hydrogen peroxide, ammonium persulfate, sodium persulfate, chlorinated polypropylene, chloridized EVA, garox mek, carbon dioxide, hydrogen, sodium carboxymethyl cellulose, carboxymethyl amylum sodium, feed additive, auric salt and silver salt series, tin salt series, tin dichloride, silver nitrate, fireworks raw materials, spheroid form nickel hydroxide, refined sulfuric acid, battery sulfuric acid, ultramicro fine powder, compound fertilizer, 40% multiple sulfur suspending agent, 40% sulfur-tricyclazole suspending agent, 40% sulfur-multiple-trideflocculant, 20% pemiro-dichlor suspending agent, high panniculus adiposus and so on.

主要产品有：过氧化氢、过硫酸铵、过硫酸钠、氯化聚丙烯、氯化EVA 、过氧化甲乙酮、二氧化碳、氢气、羧甲基纤维素钠、羧甲基淀粉钠、饲料添加剂、金、银盐系列、锡盐系列、氯化亚锡、硝酸银、烟花原料、球形氢氧化镍、精制硫酸、电池硫酸、超微细粉体、复合肥、40%多硫悬浮剂、40%硫·三环唑悬浮剂、40%硫·多·三悬浮剂、20%吡嘧·二氯悬浮剂、高脂膜等10个系列百多个品种、规格产品。

The method comprises: adding 4-(3,4-dichlorophenyl)-1-tetralone and solvent at a ratio of 1:(3-4) into a three-necked flask with a stirrer, heating under stirring until 4-(3,4-dichlorophenyl)-1-tetralone is completely dissolved, heating to 60-100 deg.C, refluxing for 0.5-2 h, cooling the filtrate to -5-10 deg.C, filtering, recrystallizing to obtain refined 4-(3,4-dichlorophenyl)-1-tetralone, and drying at 40-80 deg.C to obtain dry 4-(3,4-dichlorophenyl)-1-tetralone.

该方法的步骤是：在带搅拌的三颈瓶中依次加入4-(3，4-二氯苯基)-1-萘满酮和溶剂，溶剂与4-(3，4-二氯苯基)-1-萘满酮的L∶W为3～4∶1，将上述4-(3，4-二氯苯基)-1-萘满酮及混合精制溶剂搅拌下升温，使4-(3，4-二氯苯基)-1-萘满酮全部溶解，升温至60～100℃，回流0.5-2h；滤液用冰水冷却至-5～10℃，过滤，所得物料再用上述方法进行一次重结晶得到精品4-(3，4-二氯苯基)-1-萘满酮，40～80℃干燥后即得到干品4-(3，4-二氯苯基)-1-萘满酮。

After the founding of the PRC, the government agency set up to guide tea production, the introduction of improved varieties. professional development of the tea plant and planting tea Lei Feng, promoting production techniques. introduction and application of advanced research and development operations of tea and tea machinery, the country has built a number of early refining factory production gradually restored and developed.

中华人民共和国成立后，人民政府设立茶叶生产指导机构，引进优良品种，发展条栽专业茶园及密植茶雷锋，推广生产技术，引进和研制应用先进的制茶及茶园作业机械，建设了一批初精制茶厂，生产逐步得到恢复和发展。

This Waste water containing tar, phenol, ammonia, cyanide, benzene, pyridine, quinoline and indole dozens of other pollutants, it is very complex and is high concentrations of pollutants, it is color, toxicity and stable, after biological treatment,there are still a large number of non-degradable organic pollutants, it is a typical example of intractable industrial wastewater.

焦化废水是煤在高温干馏过程中以及煤气净化、化学产品精制过程中形成的废水，其中含有焦油、酚、氨氮、氰、苯、吡啶、吲哚和喹啉等几十种污染物，其水量大，成分复杂，污染物浓度高、色度高、毒性大，性质稳定，经生化处理后，仍有大量难降解的有机污染物，是一种典型难处理的工业废水。

In the recovery of used acid from coking refined benzene by means of salting-out-extraction process, small amount of acid tar slag is produced.

精苯废酸是焦化生产过程中粗苯精制产生的含高浓度污染物的废液，如何有效对其治理并回收利用是一个行业性的难题。

The applications of LO-CAT process in the H2S removal of gases, such as fuel gas, acid gas of amine unit, stripped gas of wastewater treatment plant and tail gas of Claus unit, were introduced.

介绍了LO-CAT工艺用于炼油厂燃料气、胺精制酸性气、含硫污水汽提气和克劳斯装置尾气等气体的脱硫处理。

The American Sugar Refining Co. was working on a new fractionation method which did not require alcohol and which might prove of great value if alcohol should become in short supply.

美国的精制糖公司正致力于研究一种新的分馏方法，该方法不需要酒精，如果酒精供不应求的话，可能证明具有很大的价值。

Products are widely used in Chinese medicine, chemicals, food, textile, sugar industries decolorization, refining, deodorant, purification, to miscellaneous, also used in wastewater treatment, water and air purification treatment, solvent recovery, purification and other precious metals processing .

产品广泛用于医药、化工、食品、纺织、制糖等行业的脱色、精制、除臭、提纯、去杂等，还应用于废水处理、纯水和空气净化处理，溶剂回收、贵金属提纯等处理。

These are recommended dose rates for Sugar Refining and related decolorization applications but dose rates for other applications and filter types may vary.

当活性炭用于精制糖和糖液脱色时可按下列建议剂量使用硅藻土，用于其他场合时应根据过滤装置类型进行调整。

Inspired by and aptly named for Minnie, the award is a delicate bronze statue of a graceful, straw-hatted woman with robust chickens standing sentry at her feet, and a dozing cat nestled safely in her arms.

这个奖项是受她的事迹启发而设计，并贴切地以她的名字命名的。那是座精制的铜像-一个头带草帽、典雅的妇人，脚下有一群像是为她站岗的健壮的鸡，怀里安详地卧着一只打盹的猫。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。