Used Stanland Glassblowing / Lakes Silver Vacuum-Jacketed Oldershaw Distillation Column

1-Inch ID Borosilicate Glass Fractional Distillation Column | 10 Theoretical Stages | Spherical Joints

• Manufacturer: Stanland Glassblowing / Lakes

• Condition: Used (Fully Inspected)

• Plate Count: 10 Theoretical Stages

• Joint Configuration: 35/25 Top and 35/25 Bottom Spherical Ball Joints

• Thermal Protection: Silvered Vacuum Jacket with Corrugated Expansion Bellows

Overview

Achieve superior separation of liquid mixtures with the precision of a classic Oldershaw design. The Used Stanland Glassblowing / Lakes 10-Plate Oldershaw Distillation Column is a highly efficient, laboratory scale fractional distillation apparatus engineered to precisely separate chemical mixtures based on exact boiling point differences.

Constructed from premium borosilicate glass, this column features a series of perforated plates (trays) and downcomers. An Oldershaw column works by creating a counter current flow of vapor and liquid, where rising vapor contacts the descending liquid on the perforated plates. Each plate acts as an individual theoretical stage, maximizing vapor-liquid contact to ensure exceptional fractionation efficiency. Coupled with a silver coated vacuum jacket and 35/25 spherical ball joints, this column offers both unmatched thermal stability and stress free mechanical assembly.

Master Technical Specifications

Core Engineering Advantages

10 Theoretical Stages for Sharp Fractionation

The internal architecture relies on the highly efficient Oldershaw design. Each of the 10 perforated plates functions as a discrete theoretical stage. The unique design of these plates ensures an even distribution of vapor and liquid phases. As ascending hot vapors interact with the descending liquid reflux, components with lower boiling points vaporize and rise, while those with higher boiling points remain in the liquid phase. This maximizes vapor liquid contact and yields exceptionally high-purity distillate fractions.

Silvered Vacuum Jacket for Thermal Stability

Maintaining a stable temperature gradient throughout the column is essential for achieving precise separations. This column features a vacuum jacket designed to minimize heat loss, which promotes highly efficient heat and mass transfer. To further enhance this effect, the jacket is treated with a specialized silver coating. The primary function of this silvering is to drastically reduce heat transfer by thermal radiation, ensuring the column operates under near adiabatic conditions.

Corrugated Expansion Bellows

Subjecting vacuum-jacketed glassware to high thermal gradients can cause stress fracturing due to differential expansion rates between the inner heated column and the cooler outer jacket. This Stanland Glassblowing / Lakes column is engineered with corrugated expansion bellows integrated into the outer jacket, absorbing this thermal expansion and ensuring a long service life during high temperature distillation cycles.

35/25 Spherical Ball Joints (Flexible Assembly)

Unlike standard rigid taper joints, the 35/25 spherical ball joints on this column allow for slight rotational and angular adjustments during assembly. This flexibility is critical when building complex distillation trains, as it eliminates rigid mechanical stress. When paired with appropriate O-rings and pinch clamps, these spherical joints provide an exceptional, grease free vacuum seal.

Typical Laboratory Applications

This 10-plate Oldershaw column is well suited for high precision workflows requiring both thermal stability and flexible assembly:

• High-Vacuum Distillation: Utilizing the 35/25 ball joints for tight, leak-free vacuum seals.

• Solvent Purification & Recovery: Reclaiming high purity solvents from reaction mixtures.

• Complex Apparatus Integration: Building distillation trains that require angular deflection to fit within specific fume hood constraints.

• Petrochemical Fractionation: Conducting research on distillation techniques and parameters.

• Specialty Chemical R&D: Simulating chemical processes to evaluate the feasibility of separation by distillation.

Complete Your Chemical Processing Workflow

Integrating this specialized ball-joint column into your process is seamless. To build a highly efficient, comprehensive chemical separation workflow, HiTechTrader provides a wide array of compatible laboratory infrastructure.

Browse our selection of used laboratory equipment for matching 35/25 boiling flasks, condensers, and spherical joint clamps. Secure precise fluid transfer with our precision laboratory pumps, and ensure maximum facility safety with our containment and safety equipment.

For larger-scale synthesis and automated setups, pair this column with our extensive inventory of chemical processing equipment, including high-pressure laboratory reactors and pilot-scale Parr reactors. Finally, validate the absolute purity of your distillate fractions using our robust analytical instruments, featuring top-tier used GC-MS systems.

Buy the Used Stanland Glassblowing / Lakes Oldershaw Column

HiTechTrader offers this used Stanland Glassblowing / Lakes 35/25 Ball Joint 10-Plate Silver Vacuum-Jacketed Oldershaw Distillation Column for laboratories requiring uncompromising separation efficiency and flexible assembly at a fraction of the cost of new specialty glassware.

Contact HiTechTrader today to:

• Confirm Specs and request formal pricing.

• Discuss compatible 35/25 distillation accessories, flasks, and pinch clamps.

• Arrange for secure domestic or international freight shipping.

FAQs

What is an Oldershaw distillation column?

An Oldershaw column is a specialized fractional distillation column designed for laboratory scale operations. Constructed from high quality borosilicate glass, it features a series of internal perforated plates (trays) and downcomers. Each plate acts as an individual theoretical stage, maximizing vapor liquid contact to precisely separate complex chemical mixtures based on exact boiling point differences.

Why does a vacuum jacketed Oldershaw column have a silver coating?

The silver coating on a vacuum jacketed Oldershaw column serves primarily to reduce heat transfer by thermal radiation. While the vacuum jacket minimizes heat loss through conduction and convection, the reflective silver layer acts as a thermal mirror. This ensures the column operates under stable, near adiabatic conditions, which is essential for accurate, reproducible fractional distillation.

What is the advantage of a corrugated vacuum jacket?

A corrugated vacuum jacket, or expansion bellows, absorbs the mechanical stress caused by thermal expansion. When hot liquids flow through a vacuum jacketed column, the inner glass expands faster than the cooler outer jacket. The bellows flex to accommodate this difference, significantly reducing the risk of glass fracturing and extending the lifespan of the distillation equipment.