Direct Sourcing Catalog
Featured Calcium Chloride & Salt Processing Machinery
Advanced continuous evaporation, industrial drying units, and material transfer modules engineered for heavy halogen-salt operations.
Evaporation & Concentration Plant Equipment
China Dihydrate Calcium Chloride Drying Equipment
Anhydrous CaCl2 Fluidized Bed Drying System
Double Roll Crusher for Salt Washing Plants
Cold-Rolled Continuous Screw Flight Blades
Turnkey Industrial Salt Washing Line
Screw Conveyor Drive Shaft & Auger Shaft Head
Industry Macro View
Global Calcium Chloride Ecosystem: Trends & Demand Drivers
Calcium chloride (CaCl2) serves as an essential chemical inorganic compound driving diverse industries from winter road maintenance to ultra-deep oilfield operations and green mining reclamation.
4.8%
Projected Market CAGR (2024–2032)
5.2M
Global Metric Tons Annual Output
77-94%
Solid Purity Grades Achieved
38%
Thermal Energy Recovery Ratio
High-Concentration Drilling Fluids
The global oil and gas revival demands solids-free, heavy completion brines (11.5–12.5 lb/gal). Liquid CaCl2 provides critical density control and osmotic hydration inhibition against shale destabilization in complex downhole drilling wells.
Infrastructure De-Icing & Dust Suppression
Unlike standard rock salt (NaCl), dihydrate and anhydrous calcium chloride pellets exhibit an exothermic dissolving reaction active down to -25°F (-32°C). This thermal capability makes high-yield manufacturing plants indispensable across northern latitudes.
Circular Byproduct Valorization
Stricter ecological mandates are driving petrochemical, soda ash (Solvay process), and lithium refinery operators to transform caustic calcium chloride effluent into salable commercial-grade flakes, reducing environmental liability into recurring enterprise revenue.
Field Implementation
Localized Industrial Engineering Scenarios
Every chemical plant has distinctive regional feedstock challenges. We engineer calcium chloride lines tailored to distinct chemical ecologies across the globe.
Subsurface Brines & Salt Lake Refining
Commonly encountered in North America, Western China, and Central Asia. The crude brine contains heavy sulfates, magnesium, and boron. Ruitu integrates selective lime milk precipitation and clarifying separation stages prior to multi-effect falling film evaporation, protecting downstream equipment from severe scale deposition.
Limestone-Hydrochloric Acid Synthesis
Commonly adopted in markets rich in byproduct HCl from chlor-alkali or organic fluorine synthesis (Europe, Southeast Asia). Ruitu builds anti-corrosion digestion towers lined with specialized PTFE/PO, utilizing limestone dissolution, gas-liquid neutralization, and hydrogen peroxide oxidation to remove trace heavy metals before granulation.
Solvay Distiller Waste Liquid Recovery
In classical ammonia-soda plants, distiller effluent contains 9-11% CaCl2 alongside NaCl and suspended CaCO3. Our specialized clarification, mechanical vapor recompression (MVR), and thermal rotary drum crystallizers recover clean table salt and high-grade calcium chloride dihydrate (77% flake or 94% prill).
Engineering Blueprint
Technical Architecture: From Brine to High-Purity Solids
From raw feed analysis to the final automated bagging warehouse, our holistic manufacturing and thermal design principles ensure minimal utility consumption and robust run-time reliability.
01. Feed Preparation & Heavy Impurity Removal
Feed chemistry analysis dictates the chemical neutralization process. Acidic feed is neutralized using calcium hydroxide or calcium carbonate slurries. Air oxidation or hypochlorite addition oxidizes soluble ferrous ions (Fe2+) into ferric hydroxide precipitates, followed by solid-liquid separation via plate-and-frame filtration to protect evaporator tubes from scaling.
02. Thermal Evaporation & Continuous Concentration
Low-grade feed (15–30% CaCl2) enters multi-effect falling film evaporators or energy-efficient MVR systems fabricated from titanium Grade 2 or Hastelloy C276. Solution concentration progresses incrementally to 42–45% for direct commercial liquid delivery, or to 68–72% molten phase for solid pellet manufacturing.
03. Crystallization, Flaking & Fluidized Bed Granulation
High-temperature concentrate is processed through chilled internal drum flakers to manufacture dihydrate flakes (74–77%), or injected into specialized fluid bed spray granulators. Here, hot flue gas from industrial hot air furnaces dehydrates moisture to produce high-density spherical dihydrate or anhydrous CaCl2 (94%+ purity).
04. Anti-Corrosion Material Selection
High-temperature calcium chloride brine represents one of the most corrosive media in chemical processing, susceptible to pitting and stress corrosion cracking. Ruitu incorporates PO/PE linings, specialized carbon steel with welded PTFE flow pathways, and titanium tube bundles to ensure prolonged structural longevity.
Strategic Capability
China Supply Chain Resilience & Ruitu Manufacturing Edge
Based in the Binhai Economic and Technological Development Zone in Weifang, Shandong, Ruitu is positioned in the world's most concentrated hub for salt, bromine, and marine chemical engineering.
28,000 m² Integrated Manufacturing Base
Unlike engineering brokers, Ruitu fabricates all critical process hardware in-house—including double-roll crushers, industrial rotary drums, hot air drying furnaces, pressure vessels, and fluoropolymer-lined valves—ensuring strict quality oversight and rapid production timelines.
Subsea & Chemical Clustered Cluster
The Weifang coastal industrial belt provides immediate access to specialty alloy mills, advanced laser precision machining, and specialized fluoropolymer lining suppliers. This proximity lowers raw material procurement costs and guarantees on-time delivery across complex bill-of-materials.
Cost-to-Performance Optimization
Achieve Tier-1 international design standards and robust process execution at a capital expenditure (CAPEX) 35% to 50% lower than traditional Western engineering providers, combined with significantly accelerated engineering fabrication turnaround.
Total EPC Delivery
Full Lifecycle Support & Global Compliance Guarantees
From raw brine chemical assay to site commissioning, we handle project risks under a single, unified EPC contract.
Process Audit & Lab Pilot Testing
Every proposal begins with bench-scale laboratory chemical testing of your feed liquid, establishing saturation points, scaling tendencies, and accurate energy balances.
Codes & Global Certifications
All pressure vessels, heat exchangers, and electrical control switchboards are fabricated to meet CE (PED), ASME Section VIII, and ATEX/IECEx hazardous-zone explosion-proof standards.
On-Site Erection & Commissioning
Our senior mechanical, electrical, and process engineers deploy on site to oversee mechanical assembly, pipeline hydro-testing, DCS integration, and ramp-up until guaranteed daily nameplate yield is reached.
Lifecycle Buy-Back & Spares
We supply replacement wearing parts (screw flights, gaskets, impellers, liners), and offer output buy-back agreements or decommissioning support where contracted.
Component & Anti-Corrosion Systems
Specialized Process Equipment & High-Corrosion Hardware
From lined storage vessels to high-integrity valves and mechanical conveyors, our auxiliary portfolio handles aggressive chloride atmospheres.
Custom PTFE Lined Sight Glass Pot
PTFE-Lined Corrosive Media Control Valve
China Heavy-Duty Screw Conveyor Auger Feeder
Stainless Steel Screw Flight Separator
China Chemical PO/PE Lined Storage Tank
Thermal Falling Film Concentration Evaporator
High-Pressure PTFE Lined Flanged Tee
Chemical Grade PTFE Lined Steel Elbow
Technical FAQ
Frequently Asked Engineering Questions
Common technical and contractual inquiries addressed directly by our senior process engineers.
What feedstocks can Ruitu calcium chloride processing systems handle?
Our plants process natural subsurface brines, salt lake water, Solvay distiller waste, hydrochloric acid synthesis byproducts, and industrial wastewater from epichlorohydrin (ECH) or lithium refining. Process chemistry is customized based on a complete chemical assay of the customer's incoming feed.
What solid calcium chloride forms and purities can your drying and flaking lines produce?
We deliver production systems for 74–77% dihydrate flakes, 77% dihydrate granules, 94% anhydrous pellets/powder, and purified food/USP grade calcium chloride. Particle sizing, density, and residual moisture are controlled via automated PLC loops on our dryers and flakers.
How does Ruitu mitigate the severe corrosion risks typical of hot CaCl2 solutions?
We select materials based on temperature and concentration. High-temperature evaporation bodies utilize Titanium Gr.2 or Hastelloy C276. For transfer lines and secondary storage, we utilize carbon-steel components lined with virgin PTFE or seamless rotomolded PO/PE, balancing structural strength and chemical resistance.
What energy recovery technologies are integrated to reduce thermal steam consumption?
We integrate Mechanical Vapor Recompression (MVR) systems and multi-effect (typically 3- to 4-effect) counter-current falling film configurations. Latent heat from evaporated steam is recovered to preheat incoming raw feed, reducing live steam demand per ton of output by up to 40% compared to legacy flash concentrators.
What engineering documentation and technical support are provided under turnkey EPC delivery?
A turnkey contract includes Process Flow Diagrams (PFD), Piping & Instrumentation Diagrams (P&ID), 3D Equipment Layouts, Foundation Civil Guidance, Operating Manuals, DCS logic source code, and comprehensive on-site installation, commissioning, and operator certification.
How do I request a preliminary engineering proposal and plant budget estimate?
Contact us at [email protected] or +86-152 6561 1319 with your feed analysis (CaCl2 %, pH, trace impurities), desired production output (tons/day), preferred end product (liquid, flake, or anhydrous), and available energy sources (steam, natural gas, power). Our process team will return an initial balance sheet within 3 to 5 business days.