硫酸处理

Polyaluminum chloride (PAC; PAC-S; PAC-H; PAFC) is a new high efficiency of inorganic polymer coagulant, the pure products use raw materials manufactured with advanced technology, good flocculation effect, its effect is better than the traditional aluminum sulfate and water purification molysite ordinary inorganic coagulants and general polyaluminum chloride.

聚合氯化铝（ PAC ； PAC-S ； PAC-H ； PAFC ）是一种新型高效的无机高分子混凝剂，本产品选用纯净原料以先进工艺制成，具有良好的絮凝效果，其净水效果优于传统的硫酸铝和铁盐等普通无机盐类混凝剂及一般的碱式氯化铝，能广泛用于给水及工业用水的净化处理，对生活污水和各行业废水也具有理想的净化效果。

Thus, equal-molecular acetic acid and n - butanol was refluxed in perfluorous nonene at 80 ℃ for 1.5 h,and the average yield of 5 runs was 98.5%.

反应物料后处理简单，氟溶剂和催化剂硫酸回收方便，可直接套用。

Paraacetaminophenyl-β-hydroxyethylsulfone can be used as raw material to produce the target product 2-sulfonic-4-(β-sulphatoethyl-sulphone) phenylamine through sulfonationating and hydrolytic reactions.

本文研究了以对乙酰氨基苯基-β-羟乙基砜为原料，经磺化和水解反应，制得产品2-磺酸-4-苯胺的合成工艺，以及2-磺酸-4-乙基砜基硫酸酯苯胺钠盐后处理的最佳操作工艺。

A new method for the total analysis of the polybasic acid s and higher fatty acids in hawthorn fruit by gaschromatography-mass spectrometrywas developed.

采用硫酸甲酯化处理山楂果样品，二氯甲烷作萃取剂，用气相色谱-质谱联用法对山楂果中的多元酸和高级脂肪酸进行了全面分析。

At the isoelectric point, pH=3.07, the flocculation effectsFentonof iron polysulfate , aluminium polychloride and chitosan chloride are compared . It is illustrated that the optical flocculation reagent is aluminium polychloride and its optical dosage is 0.30g per 50mL effluent.

在等电点pH=3.07处，对聚合硫酸铁、聚合氯化铝、壳聚糖盐酸盐的絮凝效果进行比较，确定了最佳絮凝剂为聚合氯化铝，最佳用量为每50mL处理液加入0.30g聚合氯化铝。

Passivation process also has some drawbacks, including hard buck coke catalyst bed treatment、polythionic acid stress corrosion cracking prevent for sensitively materials, meanwhile passivation process must be coordination between skillful local workers with knowledgeable company.

钝化法也有一些潜在的缺点必须注意，同时也是需要厂商负责保证，主要包括大块结焦废触媒的处理、钝化剂化学成分是否会对设备材质造成潜在伤害的确认及设备因敏化而产生聚硫酸应力腐蚀的预防等。

Pretreatment ; Sulphatization ; Arsenic removal ; Reverse flotation

预处理；硫酸化；除砷；反浮选

Gelena is pretreated by sulphatization, forming a layer of PbSO_4 film on its surface. The film has no effect on arsenic minerals and gelena is depressed during reverse flotation.

通过硫酸化预处理，可使方铅矿表面形成一层PbSO_4覆盖膜，而砷矿物不受影响，从而在反浮选中，方铅矿受到抑制。

The recent processes in the domestic sulphonation units are introduced which concern heat energy recovery, utilizing SO3 from sulfuric acid unit and replacing ESP with fiber precipitator.

介绍了近年来国内磺化装置在热能回收、采用硫酸装置吸收SO_3气体、用布林克多芯纤维除雾器取代静电除雾器处理磺化尾气诸方面所作的努力和工艺流程，对建设资源节约、环境友好型的新装置及老装置改造有借鉴作用。

Through the analysis of szaibelyite ,the manufacture method of boric acid and magnesium carbonate from szaibelyite by sulfuric acid,CO_2 and ammonia water is determined.

对硼镁矿成分进行分析，从而确定了采用硼镁矿制取硼酸联产碳酸镁工艺路线———用硫酸分解硼镁矿制取硼酸，硼酸母液经处理后加入碳化氨水制取碳酸镁。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失