1.产品简介
I. Product Introduction
SBT-204 是PTH活化过程前维护SBT-205 槽液的酸性和比重的预浸液，并确保孔壁被均匀湿润，防止有害杂质带入SBT-205中；也用于SBT-205槽液的制备。
SBT-204 is the presoak agent which maintains the acid and specific gravity of tank liquor SBT-205 before the activation process of PTH It can ensure an evenly moist pore wall to avoid detrimental impurity brought into SBT-205. Also, it can be used in the preparation of tank liquor SBT-205.
装置
II. Devices
载体/工具
Carrier/tool |
材质要求
Material requirements |
槽
Tank |
聚乙烯、聚丙烯、硬质聚氯乙烯材料
Polyethylene, polypropylene,rigid PVC |
加热器
Heater |
石英
Quartz |
三、100升工作液配制
III. Preparation of 100 liters’ working solution
品名
Product Name |
范围
Scope |
最佳值
Optimal value |
| SBT-204A |
180-220g/L |
200g/L |
| SBT-204B |
7-12% |
10% |
去离子水
De-ionized water |
余量
Allowance |
|
四、工艺条件
IV.Technical Conditions
组份/参数
Components/parameters |
最佳值/工作范围/要求
Optimal value/work scope/requirement |
工作温度
Working temperature |
室温
Room temperature |
处理时间
Processing time |
0.5-2分钟
0.5-2 minutes |
酸当量浓度
Acid equivalent concentration |
0.2-0.6N |
氯化物当量浓度
Chloride equivalent concentration |
4.0-4.45N |
比重
Specific gravity |
大于1.14
More than 1.14 |
五、槽液维护
V.Maintenance of Solution
根据处理量补加
1. Add as per handling capacity
每处理1000ft2板应补加入1.5-2.5Kg SBT-204 和200-400ml 37% 的HCl于槽中。
Add additional 1.5-2.5Kg SBT-204 and 200-400ml 37%HCI in tank so as to handle each 1000ft2 plate.
根据分析结果控制
2. Control according to the analysis results
每提高0.1N 酸浓度，每升槽液添7.93ml 37%的HCl 。
Add 7.93ml 37% HCl per liter tank solution as each increase of 0.1N acid concentration.
每提高0.1N 氯化物浓度，每升槽液添5.28 克的SBT-204 。
Add 5.28g SBT-204 per liter tank solution as each increase of 0.1N chloride concentration
根据比重补加
3. Add according to specific gravity
比重
Specific gravity |
SBT-204补加量
SBT-204 additional amount |
| 18Be(1.14) |
nil |
| 17Be(1.13) |
20g/L |
| 16Be(1.12) |
40g/L |
Cu2+≥1.0g/L更换槽液。
4. Replace the tank solution when Cu2+≥1.0g/L.
六、分析方法
VI. Analysis Methods
(一).当量浓度
(I) Equivalent concentration
步骤
1. Steps
取样5mL, 加DI水稀释至100mL
(1) Get 5mL sample and add de-ionized water to 100mL.
(2)加10滴PP 指示剂
(2) Add 10 drop PP indicator
(3)以0.1N NaOH 标准液滴定至粉红色
(3) 0.1N NaOH standard solution is titrated to pink
计算
2. Calculation
例：N = N of NaOH x mL of NaOH / 5
Example: 0.12N =0.1 N of NaOH x 6.0 mL of NaOH / 5
强度(%) = N * 830
3. Strength (%) = N * 830
分析补加公式
4. Analysis of additional formula
补加物料204(L) : (标准值—分析值)×槽积×1.63
Additional material 204 (L): (standard value- analysis value) × tank volume×1.63
铜含量
(II) Cu content
步骤
1. Steps
取样25mL,加DI水稀释至100mL
(1) Get 25mL sample and add deionized water to dilute to 100mL
加25mLpH 10缓冲液
(2) Add 25mL buffer solution of PH value10
加5滴PAN指示剂
(3) Add 5 drops PAN indicator
以0.1M EDTA-2Na 标准液滴定至黄色
(4) 0.1M EDTA-2Na standard solution is titrated to yellow
计算
2. Calculation
Cu (g/L) = M of EDTA× mL. of EDTA×63.54÷25
例 :
Example:
1.27(g/L) = 0.05M of EDTA×10mL of EDTA×63.54÷25
三、 添加方法
III. Additional methods
每处理50BSM ，补充204 1.1Kg HCL 100mL
Add 1.1Kg 204 and 100mL of HCL as per treatment of each50BSM. |
