Product added to compare
Product Compare added Product Compare
回到首页
显示全部分类 偶氮染料合成过程中的 pH 测量 返回

过程分析

偶氮染料合成过程中的 pH 测量

pH measurement during dye synthesis of azo dyes with Knick’s Ceramat fitting

Azo dyes make up the largest group of synthetic dyes by number. They are used as food dyes, artists’ colors, basic colors for four-color printing (yellow and magenta), as well as textile dyes on a large scale. More than 350,000 tons of azo dyes are used worldwide for the dyeing of natural fibers.

化工

Keyfacts Application

Sector

Azo dye production 24/7

Application

cCare - fully automated sensor maintenance for dye syntheses in which virtually all essential reaction steps are pH-dependent, so that optimization of the of the product yield based on a reliable and low-maintenance pH measurement.

Measured Parameter

pH

Key Requirements

The extreme conditions for the measuring point are as follows:

  • pH = 1, hydrochloric
  • Temperature = 90°C,
  • Pressure = 6 bars.
  • The pH electrodes have a service life of 8 h up to several weeks.

Measurement requirements

Dye syntheses in modern plants run around the clock in four shifts. Virtually all essential reaction steps are pH-dependent so that the optimization of product yield is based on a reliable, low-maintenance pH measurement. The diazotation reaction requires much hydrochloric acid and is therefore correspondingly corrosive. The reactors are protected by an enamel coating, the coupling reactors also by a rubber coating.

The extreme conditions for the measuring point are as follows:

  • pH = 1
  • Temperature = 90 °C
  • Pressure = 6 bar.

The pH electrodes have a service life of eight hours up to several weeks. Automation of these measuring points with conventional retractable fittings is only possible when Hastelloy C4 is used. Nevertheless, these expensive fittings require high maintenance effort. The fitting must be removed and serviced several times a year.

Solution

The Ceramat WA150 retractable fitting together with the Unical 9000 automatic cleaning and calibration system allows complete automation of this difficult measuring point with maximum availability. The Ceramat fitting consists of a corrosion-proof, ultrahard, superpolished, rotating ceramic part and a corrosion-resistant, carbon-reinforced, non-moved plastic housing made of PEEK.

Why Knick?
After 24 months run time the Ceramat does not show any wear on seals, probe housing, or other parts.

Matching Products

WA150 Ceramat Retractable Fitting | Ceramic lock-gate sealing | Pneumatic | Carbon-fiber-reinforced PVDF or PEEK
WA150 Ceramat Retractable Fitting | Ceramic lock-gate sealing | Pneumatic | Carbon-fiber-reinforced PVDF or PEEK
商品编码:

WA150

Related Industries and Applications

化工
化学工业的特点在于应用极其繁多，通常在有毒和易爆区域进行操作。
制浆造纸
Many measuring points in pulp production are positioned in environments where the presence of technical personnel must be restricted to a minimum. Due to the aggressive process media with high solids...
换热器破裂检测
Cooled steam precipitates as condensate with a high level of purity and therefore low conductivity. Since increased conductivity is an indication of contamination, measuring the conductivity of condensate is a reliable method for…
监测冷却塔
Cooling towers are used in a range of industrial sectors for diverting process heat from cooling circuits. Mineral deposits and corrosion reduce efficiency and lead to the premature wear of system components…

Chemical Industry Brochure

Overview of specific applications and product solutions in various fields of industrial chemistry.

Download now

Blog Articles on this Subject

2月 2024

Process Analytics

Uniclean700, Launch

Uniclean 700 Series - Modular control system for automated sensor cleaning
With the Uniclean 700 series, Knick is introducing a modular control system, that can be installed very quickly and cost-effectively as a flexible entry-level solution for automated sensor cleaning.

12月 2023

Company

|

Interface Technology

|

Process Analytics

Knick Austria - direct customer contact in Austria from 2024
Reorganization of sales in Austria and new contacts in the field of process analytics and interface technology

4月 2023

Process Analytics

Launch, Fitting, WA111

Robust WA111 Retractable Fitting Made of Plastic for Highly Corrosive Operating Conditions
The plastic WA111 retractable fitting is a robust and cost-effective solution for corrosive processes and environments. It is equipped with a secure lock function and multiple nozzles for thorough sensor cleaning.

4月 2023

Process Analytics

Launch, Fitting, WA155

成功的聯合專案： 尼克公司開發了特殊的塞拉馬特 WA 155 可伸縮配件， 用於 SOPAT 的光學探頭
污染過程中光學探頭的自動清潔：尼克斯和 SOPAT 與 Ceramat 客戶應用的聯合專案

4月 2023

Process Analytics

Conductivity, Phamacy, pH

pH and conductivity measurement in vaccine production
Pharmaceutical contract manufacturer relies on Knick's transmitters for modular production plants for Covid-19 vaccines.

4月 2023

Process Analytics

Conductivity, Sensor, SE625

Sturdy 2-Electrodes Conductivity Sensor SE625 with Coaxial Electrodes made of Titanium
The SE625 ensures reliable and accurate determination of the conductivity of ultrapure water in the semiconductor industry.

1月 2023

Process Analytics

ARD75

Sensor Adapter with Lock Function Enables Safe and Thorough Cleaning
Sensor adapter with locking gate for safety and thorough cleaning of sensors in the immersion fitting ARD75 without the need

11月 2022

Process Analytics

Protos II 4400, Module

Up to six Sensors on one Transmitter Protos II 4400 via Modul MSU4400-180
Users can now connect up to six Memosens sensors simultaneously.

8月 2022

Process Analytics

Achema, Exhibition

ACHEMA 2022 - Knick at the world forum for the process industry
In August 2022, the international process industry met at the ACHEMA. Knick presented the cCare system and industrial applications in a new concept.

6月 2022

Process Analytics

pH, Sensor, SE555, ORP

Combined pH- and ORP-Sensor SE555X/*-AMSN
Combined pH and ORP measurement in one sensor SE555 saves place and equipment costs for demanding requirements in the chemical industry, the food sector and for hygienic applications.

4月 2022

Process Analytics

MemoTrans

MemoTrans MT201N: 适用于 Memosens 传感器的超紧凑型变送器
新式超紧凑型变送器 MemoTrans MT201 可以直接插入到连接件内的 Memosens 传感器上，并通过 4-20 mA HART 协议进行通信。适用于 pH 值、氧化还原、氧及电导率传感器、节省空间的解决方案。

2月 2022

Process Analytics

Protos II 4400, Stratos Multi, Software, ProgaLog

ProgaLog 4000 电脑端参数设置工具
仅利用一款参数设置工具 ProgaLog 4000，即可对 Stratos Multi 与 Protos II 4400 全系列模块化配置式变送器进行便捷的离线参数设置、设置保存、复制用于其他变送器以及记录备审。

2月 2022

Process Analytics

Stratos Multi, Transmitter

采用 Profinet 技术的新型 Stratos Multi E461N 变送器
新型 Stratos Multi E461N 多参数变送器的 Profinet 接口可实现从现场层直至常见过程控制系统的全程过程变量的通信与预测性维护。

1月 2022

Process Analytics

Memosens

Memosens 2.0: Evolution of digital data transfer
As one of the two initiators of Memosens, Knick is constantly developing the technology.

11月 2021

Process Analytics

Conductivity, Sensor, Ex, SE656, SE655

SE655X 数字式和 SE656X 数字式 - 具有防爆认证的数字式电导率传感器
采用 Memosens 协议的 SE655X 数字式和 SE656X 数字式电导率传感器现已推出防爆认证版本。其材质和结构形式特别适用于化工、造纸和纸浆行业以及工业废水监测。

11月 2021

Process Analytics

Exhibition, Switzerland, Ilmac

ILMAC 2021 in Basel - Trade Show Review by Knick Schweiz AG
Knick Schweiz AG exhibited at ILMAC in Basel and gives a brief review of what it's like to have finally met customers at the show again.

10月 2021

Process Analytics

Stratos Multi, Transmitter, Ex

Stratos Multi E401X - 用于易爆区域的多参数变送器
Knick 成熟的分析测量仪器家族中，现又全新增添了 Stratos Multi，可用于易爆区域。

5月 2021

Process Analytics

Transmitters, Stratos Multi

使用配备 EtherNet/IP 协议的 Stratos Multi E471 进行过程优化
EtherNet/IP communication protocol allows the transmitter to be easily integrated into Industrial Ethernet networks as PCS.

5月 2021

Process Analytics

Launch, Conductivity, Sensor, SE656

新型数字式电导率传感器 SE656N
New toroidal Digital Conductivity Sensor with a large measuring range and consisting of PFA for using in aggressive media

3月 2021

Process Analytics

Protos II 4400, Profinet

Transmitter for the process industry with PROFINET module
The PROFINET industrial Ethernet standard is becoming an increasingly important aspect of process engineering in the “Industry 4.0” environment.

7月 2020

Process Analytics

Launch, Fitting, ARD170

适合移动应用场景的高品质浸入式连接件
Knick Elektronische Messgeräte GmbH & Co. KG 公司向市场上推出的 ARD 170 是一款高品质浸入式连接件，用于移动式测量 pH 值、电导率和溶解氧。在进行结构设计时，特别注意简单灵活的操作方式。

7月 2020

Process Analytics

Fitting, ARD50, ARD75

导电版模块化浸入式连接件
Knick Elektronische Messgeräte GmbH & Co. KG 公司借助浸入式连接件 ARD 50 EL 和 ARD 75 EL 在自己的液体分析连接件产品组合中增加了导电 (EL) 版。这两种工业连接件具有模块化结构，可以广泛选择各种专用传感器。

4月 2020

Process Analytics

Launch, Transmitters, Stratos Multi

New multiparameter transmitter Stratos Multi
Knick is launching the the next generation in its Stratos analyzer product line.

2月 2018

Process Analytics

Fitting, Sensor

How to get the sensor into the process
Sensors as the direct interface to the process must be exactly matched to the chemistry of the measured medium and to the prevailing pressure and temperature conditions.

4月 2017

Process Analytics

MemoRail Modbus

Powerful compact analyzer boosts performance while reducing costs
It has long been common practice when taking pH/ORP, conductivity, and oxygen measurements that a fixed analyzer be mounted near the sensor. The analyzer serves several purposes.

2月 2017

Process Analytics

Conductivity

High-Precision Conductivity Measurement at Extreme Temperature Differences
Pharmaceutical manufacturer, EVER Pharma Jena uses the extremely robust conductivity sensors SE605(H) and SE680 with Memosens technology from Knick.

11月 2016

Process Analytics

Transmitter, FF, Profibus, HART

The Big Three of the Process Industry: HART, FF, Profibus
Our Knick multi-parameter analyzers are now available with Profibus and FF interfaces. Even for hazardous areas.