硫酸处理

The seed were soaked in hot water under respective temperatures of 50℃, 60℃ and 70℃; soaked by concentrated sulfuric acid respectively for 5min, 10 min, 15 min and treated under ultra low temperature for 2 min, 5 min and 8 min; Then burgeoned under 15℃.

以12份从不同地区采集的达乌里胡枝子种子作为试验用种，采用不同温度(50℃、60℃、70℃)热水浸泡、浓硫酸(5min、10min、15min)浸种和液氮(2min、5min、8min)对种子进行硬实处理，在15℃温度下进行发芽试验。

The three kinds of dyeing, pre-mordanting, simultaneous mordanting and post-mordanting, were employed for the fabrics treated with TP to discuss the influences of quantities of mordant and TP on dyeing behavior of TP on wool.

结果表明：羊毛织物经硫酸亚铁和硫酸铜媒染分别呈紫灰色和黄棕色，在茶多酚TP-98用量5%、pH值4.1、90℃时浸渍60 min后进行媒染处理，可达到中色，并具有良好的色牢度。

Guanosine overproducing mutant was derived from Bacillus subtilis T1001 by using ultraviolet and diethyl sulfate. The mutant was selected directionally and step wisely on the agar plates containing methionine sulfoxide and 8 azaguanine(8 AG).

以枯草芽孢杆菌T1 0 0 1为出发菌株，经紫外线、硫酸二乙酯逐级诱变处理，选育出腺嘌呤缺陷型菌株，然后经蛋氨酸亚砜、8 氮鸟嘌呤( 8 AG)结构类似物平板定向筛选，获得鸟苷高产菌株TA2 0 8。

Peltophorum dubium seeds provided by Anhembi, SP were scarified in 98％ H2SO4 for 15 min to overcome mechanical dormancy.

实验所用巴西盾柱木种子由圣保罗州Anhembi公司提供，种子经由98％的浓硫酸预处理15 min，以打破物理休眠。

The results of flotation treatment on this samplewere very bad probably because of high concentration of slimes and silica (33.27% SiO2). Then flotation method was replaced by sulfuric acid leaching.

由于该氧化矿泥化严重，且SiO_2含量高达33.27%，传统的浮选方法所得的选矿指标很不理想，因此，改为硫酸浸出法处理该氧化锌矿。

A novel superacid catalyst, SO〓/Zr-ZSM-11, has been prepared by sulfating the Zr-ZSM-11 and then calcined at high temperature.

通过硫酸化处理Zr—ZSM—11分子筛得到SO〓／Zr—ZSM—11固体超强酸催化剂。

By sulfating synthesized Zr-HMS zeolite, a SO〓/Zr-HMS was prepared. It is proved that it possess superacidity by the experimental results of indicator method, NH〓-TPD, TG and IR.

硫酸化处理后制得SO〓／Zr—HMS，指示剂法测定它的酸强度大于-13.75；NH〓—TPD，TG和IR表征也证明它具有超强酸性。

The experiment results shown that: 1 the smaller the pH value, the smaller the use amount of alkaline metal and the alkali earth metal electrolyte demulsifier, when the pH value was 3, the waste fluid could be demulsified no any demulsifier and the use amount of the demulsifier did not increase remarkably along with the wiredrawing fluid concentration increased. 2 Using polymeric ferric sulfate as coagulant demulsifying, when the pH value was 8.4, the best adding amount was 40 mL per liter wastewater and the best precipitation time was 4 hours. Then the COD concentration was 480 mg/L, reaching the water quality requirements to enter the sewage treatment plant.

pH值越小，碱金属和碱土金属电解质破乳剂的用量越小，pH值为3时，无须加入任何破乳剂即可破乳；破乳剂用量并不随拉丝液浓度的增大而显著增加。2）用混凝剂聚合硫酸铁破乳，在pH值8.4时，最佳投加量为40 mL/L，最佳沉淀时间4 h，处理后上清液COD浓度为480 mg/L，能满足进入污水处理厂水质要求。

The results showed that Kaidimycin was chemically neutral, macrocylic polylactones, stable and liable to dissolve into water and pyridine, slight to dissolve into methanol, ethanol and N-butanol, difficult to dissolve into ethyl acetate, acetone, benzene and chloroform. Chemical reaction of functional group of Kaidimycin showed that it had glycoside, amino acid and aldehyde, no reducing sugar, polypeptide and phenol.

凯地菌素属中等极性的、中性抗生素，极性纸层析结果与多烯类抗生素的纸层析结果相似：易溶于水、吡啶，微溶于甲醇、乙醇、正丁醇，不溶于乙酸乙酯、丙酮、苯、三氯化碳；对高温、光照和紫外处理有很好的稳定性；官能团反应试验结果发现，凯地菌素可能含有糖苷键、氨基酸伯氨基和醛基，不含有还原糖、多肽和酚基，高锰酸钾、浓硫酸反应与多烯大环内酯类抗生素的特性相似；并且依据纯品，采用生物法和分光光度法对摇床发酵液进行了效价的测定。

The experimental conditions of decoloration disposal for printing and dyeing waste water with Cr~(3+) and litmusless dyes are optimized utilizing chitosan with 70% acetyl removed, aluminum sulphate or polyaluminum chloride for flocculation.

以脱乙酰度为70%的壳聚糖、硫酸铝和聚铝作为絮凝剂对含Cr3+和中性染料的印染废水絮凝脱色进行了处理条件的优化，对试验结果作了对比分析。

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