Chlor-alkali Electrolysis
6Pages

• Highly corrosion resistant • Raw to ultra-pure NaCI, NaOH, NaOCI, H2SO4, HCl, wet and dry CI2 gas • -75 to +400 °F (-60 to +200 °C) • Cost, reliability and environmental advantages over metal and sealed equipment

Chlor-alkali electrolysis Specialist for corrosive fluids For more than 5 decades Richter has been the specialist for corrosive and highly corrosive fluids in chemical, pharmaceutical, environmental and industrial applications. Numerous innovations have been driving the standard keeping Richter at the pole position when corrosion matters. Within the chemical industry, chlor-alkali electrolysis has become Richter’s most extensive field of application with installations around the globe, from brine handling through chlorine drying to caustics. Expertise is what counts: • Richter’s focus on...

Chlor-alkali electrolysis Lined magnetic drive pumps Almost all applications: purified, ultrapure, chlorinated and depleted brine, H2SO4, HCl, NaOH > 32%, NaOCl and slightly solids laden fluids • PFA/PTFE and PE-UHMW lined, non-metallic • Flows to 600 m3/h (2650 USgpm), -60 to 200 °C (-75 to 400 °F) • Dry-run proof SAFEGLIDE® PLUS SSiC bearings • Ideal for plant standardization through a minimum of different designs and brands • No mechanical seal, thus almost no maintenance required • Much better corrosion resistance than Duplex, Hastelloy®, titanium, nickel and much easier to handle than...

Lined shut-off + control ball valves For all fluids within a chloralkali plant incl. wet and dry Cl2 gas and liquid Cl2, except of raw brine with high share of solids • Sizes to 200 mm (8”) to ISO/DIN + ASME/ANSI • -60 to 200 °C (-75 to 400 °F), maintenance-free stem seal • Clean Air Act (German TA Luft) Lined safety relief valves Pressure safe-guarding of electrolysis cell rooms • Set pressures from 100 mbar (0,145 psi) to 13 bar (190 psi) • Bellows-sealed, -60 to 180 °C (-75 to 360 °F) • Special chlorine service designs The #1 PFA/PTFE lined safety valve worldwide! Lined bellows-sealed...

Chlor-alkali electrolysis Indicates typical installations of Richter products Richter pumps, shut-off, control and safety relief valves in ... ... Membrane Plants Shut-off + control valves Strainer Safety relief valves ... Diaphragm Plants (simplified process diagram) Water Salt Water Salt Brine saturation Depleted Brine (simplified process diagram) Brine saturation Caustic solution Sludge treatment Clean brine Hydrochloric acid Chlorate elimination Sludge treatment Filtration Purified brine Wet chlorine gas Heat exchange Hydrochloric acid Ultra-pure brine Water Salt Electrolyser Caustic...

Chlor-alkali electrolysis Why work with 4, 5 or more designs and brands each of pumps and valves? Less is more! Standardize on fluoropolymer PFA/PTFE lined pumps + valves in chlor-alkali plants! (instead of pumps and valves made of special metals) Feature Benefit Note! • Full chemical resistance to all fluids • Full temperature coverage • Choice of designs • Antiadhesive surfaces • Proven products, standard and customized • Chlor-alkali specific solutions • Handle almost all fluids • Single sourcing • Plant standardization • Reduced inventory • Increased flexibility • Significantly...