查询词典 acid process

A new production process is proposed,in which the acid sludge is removed and the pickling liquor is neutralized once with lime milk after defluorination .

工业试验结果表明，新工艺能使磷矿石中磷的利用率由现有工艺的近60%提高到85%以上，脱氟液中磷氟质量比由240左右提高到300以上，产品收率提高20%以上，产品质量也大大提升，并显著降低了原料消耗及生产成本。

This paper focuses on the principles of synthetic polyferric sulfate, and goes further into the technological process of its production in iron and steel acid washing waste liquid.

钢铁酸洗废液是一种常见的污染物，利用其生产聚合硫酸铁，可以实现废物的综合利用。

Journalists access to information we learned that the stainless steel production process will produce acid yellow and a lot of dust pollution.

记者查阅资料后得知，不锈钢生产过程中会产生发黄的酸水和大量的粉尘污染。

Glass fiber with the Nanjing Research Institute of alkali to high-quality, high-alkali glass fiber cotton as the main raw material of the current wet forming process of advanced maintenance-free lead-acid batteries are made of glass fiber adsorption partition and the compound separated board.

公司与南京玻璃纤维研究院合作以优质中碱、高碱玻璃纤维棉为主要原料采用目前先进的湿法成形工艺制成免维护铅酸蓄电池玻璃纤维吸附性隔板和复合隔板。

The paper describes bauxite positive flotation desilication process and the agglomeration mechanism of sulphuric acid and aluminum sulphate.

介绍了铝土矿正浮选脱硅生产工艺流程，阐述了硫酸和硫酸铝的团聚机理，通过工业对比试验，证明了在精矿脱水工艺中应用硫酸比硫酸铝具有更优越的技术经济效果。

By pilot tests,the sulphuric acid shows more techno-economic results than aluminum sulphate aluminum in the dewatering process of concentrate.

介绍了铝土矿正浮选脱硅生产工艺流程，阐述了硫酸和硫酸铝的团聚机理，通过工业对比试验，证明了在精矿脱水工艺中应用硫酸比硫酸铝具有更优越的技术经济效果。

Influence of fluorine on filtration of acidinsoluble matter, crystal and filtration of calcium nitrate , ammonia neutralization of mother liquor and evaporation process of slurry are discussed based on its increasing slurry viscosity, growing fine crystal and troubling filtration in production of nitrophosphate by nitric acid decomposing phosphate rock.

介绍在硝酸分解磷矿生产硝酸磷肥的过程中，杂质氟对酸不溶物过滤、硝酸钙结晶及过滤、母液的氨中和及料浆蒸发过程的影响。

Study is made of a new process for directly extraction of the cobalt oxalate from ammonium oxalate in the acid solution directly dissolved from lithium cobaltate.

研究了从钴酸锂直接溶解后的酸溶液中用草酸铵直接提取草酸钴的新工艺，采用氟盐将酸溶液中的铝完全全络合，然后用草酸铵在pH为2，温度60℃下沉钴，再在马弗炉中煅烧成氧化钴，所得产品可达到Co2O3？

We have synthesized 4,4'-dinitro-3 4''-dimethyl triphenylamine,(1), in 84% yield in an one-step condensation process between 3,4-dimethyl aniline and 4-fluoro-nitrobenzene. After the auto-oxidation of (1) and the subsequent hydrogenation of the nitro-groups, an AB2 type triphenylamine polyimide intermediate bearing two amine groups and one acid-anhydride group each on individual phenyl ring,{AB2 PI Intermediate}, was prepared successfully. The yields of the autoxidation and the hydrogenation steps are 81% and 90% respectively.

中文摘要本研究以3，4-二甲苯胺及4-氟硝基苯为原料，经一步骤缩合反应得到产率为84 %之4，4'-二硝基-3&，4&-二甲基三苯胺(1)，由(1)经自氧化法后再以氢化法还原硝基，成功地制备出带有二胺基与一羧基的三官能基之AB2型三苯胺中间体(AB2型PI中间体)，自氧化反应与氢化法的产率各为81%及90%。

The good results are achieved by deeply-process of by-product hydrochloric acid through these technology improvement methods of resin exchange,Barium chloride settlement and oxide reduction.

曼海姆工艺副产盐酸存在着硫酸盐和氧化物超标的问题，通过工艺技术的改进，利用树脂交换、BaCl_2沉降、氧化物还原对副产盐酸进行深加工，效果良好。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。