Crystallization Vessel for Chemical Manufacturing

Product Specifications

Technical details and manufacturing context for Crystallization Vessel

Definition

Within an industrial system, the Crystallization Vessel serves as the critical containment unit where supersaturated solutions or melts are processed under controlled conditions to promote the nucleation and growth of solid crystals. It is engineered to manage key crystallization parameters such as temperature, pressure, agitation, and residence time, ensuring the production of crystals with desired purity, size distribution, and morphology for downstream separation, purification, or product formation stages. The vessel is typically constructed from materials such as stainless steel (e.g., 316L), glass-lined steel, or Hastelloy, selected based on process compatibility and corrosion resistance. Its design incorporates features for heat transfer, agitation, and slurry handling, with options for mechanical seals to prevent leakage. The vessel operates by containing a feedstock solution or melt and inducing supersaturation through controlled cooling, evaporation, or anti-solvent addition. This drives nucleation and crystal growth, with agitation maintaining homogeneity and controlling crystal size. The vessel's design must accommodate specific process parameters, including nominal capacity (500–10000 L), design pressure (0.6–1.6 MPa per GB/T 150), design temperature (-20–200 °C), stirring speed (50–500 rpm), motor power (5.5–45 kW), heating/cooling rate (0.5–5 °C/min), jacket volume (100–2000 L), material grade (316L/304 per ASTM A240), surface roughness (≤0.4 μm Ra per ISO 4287), sealing type (mechanical seal per API 682), operating voltage (380 V ±10% per IEC 60038), and weight (1500–15000 kg). These values are reference ranges and must be verified for the specific model and application. The vessel is a component within a larger industrial system, and its selection requires consideration of process requirements, material compatibility, and operational safety. Verification of model-specific values and standards with the legal manufacturer or supplier is essential before procurement or use.

Working Principle

The vessel physically operates by containing a feedstock solution or melt. Through controlled cooling, evaporation, or the addition of an anti-solvent, the solubility limit of the target solute is exceeded, creating a supersaturated state. This drives the physical process of nucleation, where crystal seeds form, followed by crystal growth as more solute deposits onto these seeds. Agitation (e.g., via an internal stirrer) is often employed to maintain homogeneity, control crystal size, and prevent fouling on the vessel walls. The vessel's design manages heat transfer for temperature control and may include features for slurry handling and crystal discharge.

Common Materials

Stainless Steel (e.g., 316L), Glass-Lined Steel, Hastelloy

Technical Parameters

Parameter	Typical range	Notes & selection driver
Nominal Capacity	500–10000 L	Select based on batch size and production scale.
Design Pressure	0.6–1.6 MPa	Higher pressure requires thicker wall and cost increase.GB/T 150
Design Temperature	-20–200 °C	Crystallization typically below 100°C, but cleaning may require higher.
Stirring Speed	50–500 rpm	Critical for crystal size distribution; speed range depends on impeller type.
Motor Power	5.5–45 kW	Depends on viscosity and volume; ensure sufficient torque for slurry.
Heating/Cooling Rate	0.5–5 °C/min	Controlled cooling is essential for uniform crystal growth.
Jacket Volume	100–2000 L	Larger jacket provides more uniform temperature control.
Material Grade	316L/304	316L for corrosion resistance; 304 for cost saving.ASTM A240
Surface Roughness	≤0.4 μm Ra	Smooth surface prevents crystal adhesion and facilitates cleaning.ISO 4287
Sealing Type	Mechanical seal	Prevents leakage and contamination; double seal for hazardous media.API 682
Operating Voltage	380 V ±10% V	Three-phase AC; other voltages available on request.IEC 60038
Weight	1500–15000 kg	Affects installation and foundation requirements.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Vessel Shell/Body Part
Provides the primary containment for the process material and withstands operational pressure and temperature.

Material: Stainless Steel, Glass-Lined Steel, or Corrosion-Resistant Alloy
Jacket Part
An external or internal layer through which a heat transfer fluid (e.g., steam, cooling water) circulates to control the temperature of the vessel contents.

Material: Stainless Steel
Agitator/Stirrer Assembly Optional
Mixes the vessel contents to ensure uniform temperature and concentration, promote crystal growth, and prevent sedimentation.

Material: Stainless Steel shaft with appropriate impeller (e.g., pitched blade, anchor)
Baffles Optional Part
Internal vertical plates that disrupt rotational flow from the agitator, improving mixing efficiency and heat transfer.

Material: Stainless Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Crystallization Vessel.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Automated Batch Crystallization System

View system integration details

Manufacturers of Crystallization Vessel

Manufacturer profiles associated with Crystallization Vessel.

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Frequently Asked Questions

What materials are commonly used for the Crystallization Vessel?

Common materials include stainless steel (e.g., 316L), glass-lined steel, and Hastelloy. The choice depends on process compatibility, corrosion resistance, and cost. Verify material grade and suitability with the manufacturer.

What is the typical design pressure range?

The design pressure range is 0.6–1.6 MPa, as per GB/T 150. Higher pressures require thicker walls and increase cost. Confirm the required pressure for your application with the supplier.

How does agitation affect crystal size distribution?

Agitation maintains homogeneity and controls crystal size. Stirring speed ranges from 50–500 rpm, depending on impeller type. Proper agitation prevents fouling and ensures uniform growth. Verify optimal speed for your process.

What standards are referenced for the vessel?

Referenced standards include GB/T 150 for pressure, ASTM A240 for material grade, ISO 4287 for surface roughness, API 682 for sealing, and IEC 60038 for voltage. These are verification references, not certifications. Confirm compliance with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 10 bar (gauge)
flow rate:	0.5 to 5 m³/h
temperature:	-20°C to 200°C
slurry concentration:	Up to 40% solids by weight

Crystallization Vessel

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards