wet chemical refining

Caustic Scrubber Designs for H2S Removal from Refinery …

Caustic Scrubber Designs for H 2S Removal from Refinery Gas Streams . 1 Abstract . Caustic scrubbing is a technology that has been used for the removal of H 2S and other acid species from gases in different industries for many years.

Chemical Refining - Chemical Refinery, Refinery Chemical ...

High level of chemical refining technology is used for chemical refining by our company. We offer highly productive chemical refining technology to our clients at the industry leading prices. These advanced technologies help meet bulk requirements of our …

Wet Chemicals | Linde Gas

Our wet chemical portfolio includes a full range of acids, solvents, oxidizers, bases, mixed acids, and buffered oxide etchants in a range of purity levels down to sub-100 parts per trillion (ppt). AUECC is also the first choice for wet chemicals among solar cell manufacturers.

Wet Chemical Gold Refining Plant – Kemplant

The purpose of this study was to evaluate the feasibility of Rand Refinery's proposed Wet Chemical Gold Refining Plant. The proposed plant design would entail the use of modern hydrometallurgical processing and refining of gold bullion to a 99.99% product and briefly, the process consisted of a number of steps such as Atomisation, Dissolution and Precipitation to recover the 99.99% product.

Home - North West Refining

50% owner of the NWR Sturgeon Refinery. We are committed to the environment and Alberta's Energy Future. Refining our Alberta Bitumen into higher value finished products. World's only refinery designed from the ground up to incorporate gasification and a carbon capture and storage solution.

Pgm refining | Johnson Matthey

Chemical Leaching The two bullion feeds then move to our chemical leaching plant where they undergo multiple leachings to further concentrate the pgms into solution. The silver based bullion is suspended in concentrated acid to slowly leach the silver, platinum and palladium into solution and separate out any gold, which is sent for further ...


WET-Treat® 10090 DEMULSIFIER Removing oil in water emulsions. WET-Treat® 10100 NEUTRALIZING AMINES Used to neutralize acidity in oil production, in oil refining and in petrochemical processes. WET-Treat® 10200 FILMING CORROSION INHIBITORS Prevent corrosion in oil production, tanks, pipelines, oil refining and petrochemical processes. WET ...

Wet Hydrogen Sulfide (H2S) Cracking | Inspectioneering

Wet Hydrogen Sulfide (H 2 S) Damage is a common problem in the oil & gas and petrochemical/chemical manufacturing industries. It can occur when carbon-steel equipment becomes exposed to wet H 2 S service environments, and it can come in several different forms. Wet H 2 S corrosion can be a particularly dangerous form of corrosion because damage caused by it takes place …

PAMP | Refinery

Current platinum group metals (PGM) refining capacity exceeds 30-metric tons per year. Methods include electrolysis, wet chemical chlorination (aqua regia), and wet chemical parting. All mine doré and scrap material can be refined up to '999.99' (five-nines) purity, to meet specific industrial needs such as electronics and fine jewelry ...

Mechanical Contractor for the Industrial, Refining ...

Spaeder offers in-house fabrication services for high-quality, lower-cost solutions for the industrial, refining, and chemical industries. Spaeder's fabrication shop is staffed by qualified American Society of Mechanical Engineers (ASME) certified welders and equipped with the industry's latest technology.

Wet Gas Scrubber - thewastewaterblog.com

Dec 19, 2016· Refinery Wet Gas Scrubber This may seem a little odd, perhaps, but there is one unit process in particular that I really enjoy evaluating and that is wet gas scrubbers at refineries. Of most interest to me is the choice of chemistry used to settle solids (catalyst fines) in the scrubber blowdown.

Physical Refining – Degumming | Oil Palm Knowledge Base

Dec 26, 2015· Physical refining was utilized as early as 1930 as a process for the preneutralization of products with a high initial FFA content. In this case, preneutralization was followed by caustic refining. Later, it was found possible to physically refine lauric oils and tallow if the proper pretreatment was applied before steam distillation. Physical refining became…


The factory's refining capacity exceeds 450-metric tons for gold, 600-metric tons for silver and 30-metric tons for PGM per year. Methods include electrolysis, wet chemical chlorination (aqua regia), and wet chemical parting. Our experienced staff endeavour to deliver superior flexibility, fast turnaround and competitive pricing.

Improved cleaning method safely removes pyrophoric iron ...

Home; Improved cleaning method safely removes pyrophoric iron sulfide. Philip A. Vella Carus Chemical Co. LaSalle, Ill. Refinery process and storage equipment often becomes contaminated with ...

Large Scale Gold Refining By the Aqua Regia Acid Method

A Precious Metals Recycling Company For more than 45 years, Metallix Refining has been the leader and innovator in the precious metals recycling industry. Metallix purchases, recycles, and refines gold, silver, platinum, palladium, and rhodium. We serve small businesses to large corporations in a variety of industries globally. Schedule A Pick-Up You're In Control of Your Scrap […]

Catalytic reforming - Wikipedia

Catalytic reforming is a chemical process used to convert petroleum refinery naphthas distilled from crude oil (typically having low octane ratings) into high-octane liquid products called reformates, which are premium blending stocks for high-octane gasoline.

chemical list for refining gold - BINQ Mining

May 09, 2013· aqua regia gold refining. for low cost separation of gold, silver, platinum and palladium … aqua regia process and its many derivations is the refining of metallic gold scrap as well as … nitric acid during gold reduction may be very much limited by chemical pretreatment. »More detailed

Assay Techniques - Doral Refining Corp

The gold refining technique described here is the rather ancient wet chemical method whereby the gold-bearing scrap is dissolved. The gold solution is then filtered and the jewelers bench dirt, sandpaper grit, etc remains on the filter as a solid sludge, together with …

Refining - How It Works - Colt Refining & Recycling

Our refining facility was built from the ground up! It is designed specifically to meet and exceed your expectations. Our diverse operations include Thermal Reduction, Milling, Sifting, Induction Melting, Blending, Shred & Sampling as well as Chemical Processing.

Crude Oil Refining and Petrochemicals Operations | total.com

Our refining and petrochemicals operations transform crude oil and natural gas into finished products or intermediates, which are then used to manufacture chemicals. Our industrial know-how, our teams' expertise and our strategic partners all play a key role in this process. We operate responsibly worldwide.


REFINING METHOD CHEMICAL PHYSICAL. This refining process can treat almost any kind of edible oils and fats but it involves the produc-ALKALI ... In both systems (cold refining and wet dewaxing) the oil is cooled at 7 ÷ 8°C and then sent to crystallizers where it remains from 8 to 12 hours.

6. Wet processing | Textile Technology

Textile wet processing Textile wet processing is the process that use in any finishing treatment. Where, this process is applied on textile in form of liquid with involves some for chemical action on the textile. Examples: bleaching, printing, dyeing and printing. …

Chemical cleaning and degassing refinery equipment - EPTQ

Chemical cleaning and degassing refinery equipment The safe removal of volatile hydrocarbons, hydrogen sulphide gas and pyrophoric iron sulphide from refinery equipment before inspection is indispensable. A chemical cleaning programme reduces downtime and the need for mechanical cleaning I n petroleum refineries, distillation and

Refining of Edible oils: Edible Oil Processing

Jul 21, 2012· Two processes have been developed for the refining of edible oils and fats, i.e. physical and chemical refining; the decision which process to use depends on the types and qualities of the crude oil to be processed (Figure 1).The names physical and chemical refining come from the process technology used to remove the Free Fatty Acids (FFA) that are responsible for the oil acidity.

Chemical Processing - How Oil Refining Works - HowStuffWorks

Alteration. Sometimes, the structures of molecules in one fraction are rearranged to produce another. Commonly, this is done using a process called alkylation.In alkylation, low molecular weight compounds, such as propylene and butylene, are mixed in the presence of a catalyst such as hydrofluoric acid or sulfuric acid (a by-product from removing impurities from many oil products).

Refining - valcambi.com

Valcambi's state-of-the-art refining facilities deliver the highest purity precious metals recovered from a wide range of feed materials, from primary doré supplied by mining companies to industrial scraps and recycled jewellery as well as precious metals invested and owned by …

What is physically refining of edible oils? - Quora

Edible/vegetable oil refining is a step by step process. Refining removes phospholipids, pigments, off-flavors, free fatty acids and other impurities in the crude oil. The entire vegetable oil refinery plant process comprises degumming/neutralizat...

Scrubber - Wikipedia

Scrubber systems (e.g. chemical scrubbers, gas scrubbers) are a diverse group of air pollution control devices that can be used to remove some particulates and/or gases from industrial exhaust streams. The first air scrubber was designed to remove carbon dioxide from the air of an early submarine, the Ictineo I, a role for which they continue to be used today.

Wet Chemical - Metallix Refining

Metallix' wet chemical department processes cyanide and acid solutions that contain precious metals Cyanide We purchase precious metal bearing cyanide solutions containing gold and silver. The precious metals are recovered electrolytically onto metal cathodes or through precipitation. Acid In our high-grade refining department, we use certain acid formulations to dissolve, separate ...

Refining – SAXONIA

The refining of precious metals creates considerable value. Trust is an essential condition for successful cooperation. SAXONIA therefore guarantees maximum transparency in the separation process, total accuracy in analysis and absolute care in the environment-friendly recovery of your precious metals.

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