Get a Quote

Standard Practice for Recovery of Asphalt from Solution ...

3.1 The solution of solvent and asphalt from a prior extrac-tion is distilled by partially immersing the rotating distillation ask of the rotary evaporator in a heated oil bath while the solution is subjected to a partial vacuum and a ow of nitrogen gas or carbon dioxide gas. The recovered asphalt can then be subjected to testing as ...

Process for concentrating sulfuric acid in an evaporator ...

A process for concentrating sulfuric acid which comprises: (a) introducing an aqueous feed sulfuric acid into an evaporator; (b) heating the feed sulfuric acid in said evaporator to a temperature sufficient to evaporate the water and form a vapor rich in water and leave a concentrated bottoms product rich in sulfuric acid; (c) passing the vapor ...

Home Environmental Health Safety UCI

A rotary evaporator (rotovap) is a fast and effective method of removing solvent from a flask. ... NEVER use a rotovap to concentrate a solution that may contain explosive peroxides or produce explosive peroxides upon concentration. For example, ethers (glyme, THF, diethyl ether, dioxane) can form explosive peroxides when exposed to air, stored ...

Concentration Using Rotary Evaporator

A rotary evaporator (rotovap) is a fast and effective method of removing solvent from a flask. A rotovap removes solvent by reducing the pressure within the flask using a vacuum, rotating the sample to increase its effective surface area, and heating the solution.

Rotary Evaporator Cooking Process / Applications - WKIE Lab

Applications of rotary evaporator cooking. 1. It is used in modern kitchens to concentrate blood orange flavors by removing water, obtaining the purest and freshest flavors. 2. It is also used in the extraction of different flavors of interest, from blended herbs, alcohol, and fruits at very low temperatures. 3.

Technical Considerations for Use of Oligonucleotide ...

Aug 06, 2020 The maximum concentration of API solution achieved during manufacture by the authors to date is 160 mg ASO/g solution. It may be possible to achieve higher concentrations; however, this has not yet been proven. For TFE processes, cycle times and total evaporation times will be dependent on batch size, concentration factor, and evaporation …

Laboratory Rotary Evaporation Solutions Convincing ...

BUCHI offers dedicated solutions for laboratory rotary evaporation whether you operate in RD or quality control. Based on our experience and knowledge we offer tailor-made solu-tions to cover a wide range of distinct needs and achieve highest convenience. Laboratory Rotary Evaporation Solutions Convincing solutions from the market leader

Rotary Evaporation - an overview ScienceDirect Topics

Concentrate the culture extracts 50–100-fold via rotary evaporation. Stop if precipitate forms. 2. Add methanol (90% final, v/v). Salts usually precipitate. 3. Filter the precipitate. Use 31 P NMR spectroscopy to ensure that the phosphonates are still present in the filtrate.

Training Paper - Distillation with a Rotary Evaporator

Concentration of solutions and suspensions2 Crystallization or recrystallization3 Synthesis4 and purifying of fine chemicals Soxhlet extraction5 Powder and granules drying Recycling of solvent Selecting the correct rotary evaporator 3.3.2 Sealing system 3.2.2 Heat transfer medium 3.2.1 Heating bath Tel.: 016/73 55 72 Fax: 016/73 55 87 [email protected]

Concentrators LabTech

Concentrators Concentrators (aka nitrogen evaporators or nitrogen blowdown concentrators) are a valid alternative to rotary evaporation mainly in case of small volumes (under 50 mL) and a large quantity of samples. Request a quote Documentation View 360 Safety, productivity, flexibility and reliability

Lab Rotary Evaporator - WIGGENS

Description. The rotary evaporator Strike 285 combines excellent operating characteristics and high performance levels, all in an ergonomic design, offering excellent separation, concentration and purification solutions. All Functions can be viewed and monitored on the large and clear Touch Screen display, the parameters can be set by touch ...

Understanding Concentration and Evaporation Technology ...

Feb 06, 2013 The centrifugal evaporation technique accommodates a wide range of solvents and can concentrate, dry to a film, or freeze-dry samples. Advanced centrifugal evaporation systems can achieve rapid freeze-drying by concentrating the majority of a larger volume before freeze-drying the final few milliliters of sample.

Rotary Evaporation - Science topic - ResearchGate

Feb 25, 2022 My humble advise is re-do the assay, but this time after drying the fruit waste, grind and macerate (at least 48hours). Then filter and concentrate using rotary evaporation to obtain an extract...

3 common fruit juice concentrate process technologies

In this regard, the concentration process must be carried out under low temperature. The most popular fruit juice process technology are vacuum concentrate method, concentration by refrigeration, membrane technology concentration. Besides, in fruit juice concentration process, aroma recovery is an influential step we can’t ignore.

How do I evaporate water and ethanol using a rotary ...

Jan 20, 2022 The procedure we used in a paper states that after evaporate the organic part of the solvent, add 3 mL methanol into sample and be ready for HPLC injection. However, after waiting for more than...

Concentration of apple juice using a vacuum microwave ...

Jan 24, 2017 Abstract This study was evaluated the use of a novel concentration technique, a vacuum microwave evaporator (VME) ... The apple juice concentrate was produced by VME, a rising film evaporator (RFE), and a rotary evaporator (RE) at the optimum process conditions. The results show that the evaporation rate of VME was three times higher than that ...

A Reliable Hybrid Adsorbent for Efficient Radioactive ...

Jan 28, 2016 After that bis(2-chloroethyl)ether (28.6 g, 200 mmol) was added into the mixture and stirred at room temperature for 24 h. Then the mixture solution was cooled at 0C and methanol (10 mL) was added in this stage. The organic solution was evaporated using rotary evaporation and the residue compound was dissolved in dichloromethane and water.

Evaporation filtration and crystallisation CPD RSC ...

May 23, 2018 As a sugar solution is boiled, the water evaporates and the concentration of the sugar increases. As the boiling point is dependent on sugar concentration, the temperature of the solution increases steadily as concentration increases, from the ‘soft ball’ (fudge) concentration (85%) to ‘hard crack’ (toffee, 99%).

Enhancement of rotary evaporation on the purification of ...

Nov 01, 2021 In this work, rotary evaporation is added and combined with AC, calcium hydroxide and xylanase treatment, which aim to promote purification of PHL and increase the yield of XOS DP 2–4. Properties and removal of saccharides, lignin, acetic acid and furfural in PHL during the concentration process of rotary evaporation are investigated. 2.

Sample Preparation Processing

RocketTM Evaporator, enable rapid concentration of larger volumes at the speed of a rotary evaporator. Such systems operate without the solvent bumping and consequent need for continual monitoring associated with rotary evaporators. Blow-Down Evaporation In these evaporator systems, an inert gas such as nitrogen is blown down through needles

Rotary Evaporation to Remove Solvent Organic Chemistry ...

Rotary evaporation is a technique commonly used in organic chemistry to remove a volatile solvent from a non-volatile compound of interest. Invented by Lyman C. Craig in 1950 the rotary evaporator, or rotovap, gently removes solvents from compounds using heat combined with reduced pressure to evaporate, dry, and purify samples for further downstream use.

Rotary Evaporation: Laboratory Applications - Scitek

Rotary Evaporation. Rotary evaporators are commonly used in chemistry related environments for the efficient and gentle removal of solvents from samples by evaporation under vacuum. The evaporator consists of a heating bath with a rotating flask, in which the liquid is distributed as a thin film over the hot flask wall surfaces so it can ...

Product Laboratory Rotary Evaporator STRIKE Series

Rotary Evaporator STRIKE series; Condenser; Evaporating flask: 50, 100, 250, 500, 1000 mL; Collecting flask: 250, 500, 1000 mL; Anti-sprinkling bubble; Cooling capacity of Chiller: 300W (20℃ ) Vacuum pump (8 mbar, 34 L/min) ST380 Vacuum controller; Adapter and Joint clips . PACKAGES 4. Scope of Delivery. Rotary Evaporator STRIKE series; Condenser

Effect of Rotary Evaporator Water Bath Temperature on ...

Sep 19, 2018 To clarify the influence of water bath temperature on the decompression and concentration efficiency of a rotary evaporator, accurate control of the water bath temperature is required. Therefore, the water bath temperature control system of a rotary evaporator was studied using the recovery rate of phthalate esters (PAEs) as the indicator. The results …

Understanding Evaporation and Concentration Technologies ...

Such systems operate without the solvent bumping and consequent need for continual monitoring associated with rotary evaporators. Blow-Down Evaporation In these evaporator systems, an inert gas such as nitrogen is blown down through needles onto samples in tubes, vials or microplates to create a flow over the liquid surface.

Concentrating Sulfuric Acid Through Evaporators

That is why a large amount of concentrated sulfuric acid is formed. Importance of Evaporators The concentration of. All for Joomla All for Webmasters. Alaqua 7004 Boulevard East, Suite 28A,Guttenberg, NJ USA 07093 +(00-1 ... ALAQUA supply solutions equipment worldwide to meet your processing requirements, offering Forced Circulation ...

Wiggens Strike 285 Rotary Evaporator (Slanting glassware ...

The rotary evaporator Strike 285 combines excellent operating characteristics and high performance levels, all in an ergonomic design, offering excellent separation, concentration and purification solutions. ... concentration and purification solutions. All Functions can be viewed and monitored on the large and clear Touch Screen display, the ...

Vacuum evaporators concentrators water ... - Pentacque srl

Vacuum evaporation systems are the most advanced technical solution to the problem of raw material recovery and the treatment of products with high concentration of pollutants.. The basis of the operating principle of vacuum concentrator evaporation systems is to use a heat source to evaporate the incoming liquids, this evaporation or distillation of the liquid is greatly amplified …

Rotary Evaporator Selection Guide - INTEK GROUP

When deciding on the best solution for your rotary evaporation needs, you should think about ... cooling solution without the necessity for a constant supply of cooling water. This configuration is common for the production of tinctures, yielding a thick concentrate that is considerably pure with relatively little solvent use. Cold finger ...

ROTARY EVAPORATORS EVAPORATION SOLUTIONS

With an innovative and ergonomic design, the EV series rotary evaporators include color digital display to monitor and control rotation speed and temperature, motorized vertical lift, evaporation flasks, on line sample adding through PTFE valve and can be completed with the LabTech vacuum and cooling accessories to reach top efficiency of process.

Contact Us
advanced technology

High-tech Zone, Zhengzhou, China

Inquiry Online
Related Post
Leave Us Message
customer service img

We immediately communicate with you

Get Quote Online

If you have any needs or questions, please click on the consultation or leave a message, we will reply to you as soon as we receive it!

<script type="text/javascript" src="https://s9.cnzz.com/z_stat.php?id=1281096741&web_id=1281096741"></script>