Mercury Catalyst Activated Carbon
Mercury catalytic activated carbon is a kind of activated carbon impregnated with a certain amount of HGCL mercuric chloride, which can be used as a catalyst in the production of polyvinyl chloride (PVC) synthesis process.
What is Mercury Catalyst Activated Carbon?
Mercury catalyst is a catalyst, which is a catalytic substance that can speed up chemical reactions, control the direction of reactions and the composition of products without affecting chemical equilibrium.
Mercury-catalyzed activated carbon is activated carbon loaded with a certain amount of mercuric chloride HgCl2, and it looks no different from activated carbon. Usually, coal-based granular activated carbon and coconut shell granular activated carbon are used as base carbon. The impregnation amount of mercuric chloride is usually 4.5%-5.5% or 10.5%-11.5%, which can be adjusted according to customer needs.
Mercury-catalyzed activated carbon is mainly used for catalyst loading in the polyvinyl chloride synthesis process in the petrochemical industry.
Mercury Catalyst Activated Carbon Main Uses
- Used in the synthesis of PVC raw materials to reduce production costs and environmental pollution for companies producing PVC raw materials.
- Accelerate the production of PVC and resin.
What is PVC?
Polyvinyl chloride (PVC) is the largest general-purpose synthetic resin material in China. It has excellent heat resistance, wear resistance, chemical corrosion resistance and other characteristics. It is widely used in industry, construction, agriculture and other industries. Mercury chloride catalytic activated carbon (commonly known as mercury catalytic activated carbon) acts as a catalyst for the synthesis of vinyl chloride (VCM) from acetylene (C2H2) and hydrogen chloride gas in the production of PVC by calcium carbide method.
Mercury Catalyst Activated Carbon Preparation Process
Activated carbon preparation
Select high-strength, large-specific-surface-area activated carbon to remove impurities and ash. The activated carbon is repeatedly boiled and washed in a solution of high-purity hydrochloric acid desalted water, then dehydrated and dried to give it a larger porosity.
Pickling
Pickle the activated carbon to remove metal molecules (such as iron molecules: mercuric chloride HgCl2 can react with any metal, so the iron content is also important).
During the pickling process, the metal molecules are converted into chlorides to avoid mercuric chloride reduction reactions. (Attention: The purity and moisture of mercuric chloride HgCl2 also affect the quality)
Impregnation
Use high-purity (≥99%) mercuric chloride HgCl2 to prepare a very low-concentration mercuric chloride solution with high-purity hydrochloric acid and desalted water. Soak the activated carbon in the impregnation agent and then dry it. The mercury is evenly impregnated through three cycles of “soaking-dehydration-drying”.
Package
After the mercury content of the activated carbon meets the standard, it is screened and packaged.
Heycarbons Mercury Catalyst Activated Carbon Uses
Acetylene (C2H2) chlorination reaction (PVC production):
Mercury catalyst activated carbon formula: Acetylene and hydrogen chloride are catalyzed by mercuric chloride to produce vinyl chloride.
- This reaction produces vinyl chloride (VCM), which is the main raw material of PVC (polyvinyl chloride) plastic.
Application areas:
- Plastic industry: production of PVC pipes, films, cables, packaging materials, etc.
- Construction industry: used to manufacture corrosion-resistant pipes, door and window frames, etc.
Function:
- Increase acetylene conversion rate and make the reaction more efficient.
- Applicable to gas phase reaction process, reduce by-products and improve the purity of vinyl chloride.
Methyl Chloride Synthesis
Mercury-catalyzed activated carbon can be used for the chlorination of ethanol or methanol to produce chloromethane and its derivatives, such as
- Methyl chloride (CH₃Cl): can be used to produce silicone, medicine, dyes, etc.
- Dichloromethane (CH₂Cl₂), chloroform (CHCl₃), carbon tetrachloride (CCl₄): as solvents or chemical raw materials.
Other organic chlorination reactions
Mercury-catalyzed activated carbon can be used in other chlorination processes, such as:
- Benzene chlorination reaction: preparation of chlorinated aromatics (such as chlorobenzene C₆H₅Cl).
- Alcohol chlorination reaction: used to produce chlorohydrin compounds.
Heycarbons Mercury Catalyst Activated Carbon Product
Heycarbons Mercury Catalyst Activated Carbon
Mercury catalyst activated carbon uses coal pelletized activated carbon as a carrier, mercuric chloride as the main active component, adds anti-toxic and mercury-fixing additives, and is produced by liquid membrane impregnation and low-temperature and low-humidity drying process. Its performance is greatly improved compared with the old mercury catalyst.
Coconut shell granular Activated carbon for high-mercury chloride catalyst carrier is refined by physical activation method. It is black granular, non-toxic and tasteless, with well-developed pores and reasonable distribution of three types of pores. It is widely used in catalyst carriers in synthetic industries, phosgene synthesis, high-mercury chloride catalyst carriers, chlorine-containing catalysts for rare metal purification, synthetic vinyl acetate and other polymerization, oxidation, halogenation reaction catalyst carriers, etc.
How is mercury used as a catalyst?
Heycarbons Mercury Catalyst Activated Carbon is used as a catalyst in the synthesis process of polyvinyl chloride production by the acetylene method. Its usage is generally: the synthesis reaction temperature is controlled at 100-180℃, the flow rate is controlled at 50-100M³/h, the molecular ratio of acetylene (C2H2) to hydrogen chloride (HCl) is controlled at 1:1.05-1.10; the purity of acetylene (C2H2) is ≥98.5%; the purity of hydrogen chloride (HCl) is ≥93%. In addition, it can also be determined by the user according to his own process rules and procedures.
Heycarbons COCO Mercury Catalyst Activated Carbon Customer Case
Below are the requirements of Heycarbons’ a customer.
The following table introduces the specifications of mercury catalytic activated carbon and the parameters of the base carbon used, that is, coconut shell activated carbon.
Mercury Catalytic Activated Carbon Specification
| Project | Specification | |
|---|---|---|
| Appearance | Black flake particles | |
| Carrier | Coconut shell activated carbon | |
| HgCl2, % | High mercury content | 10.5-11.5 |
| Low mercury content | 4.5-5.5 | |
| Moisture, w% | ≤0.3 | |
| Packing density, g/l | 450-550 | |
| Mechanical strength, % | ≥98 | |
| Breakage rate during processing, w% | ≤2 | |
| Particle size distribution | ＞5mm | ＜5 |
| 2.5-5mm | ＞92 | |
| ＜2.5mm | ＜3 | |
Base Carbon-Coconut Shell Activated Carbon Specification
| Project | Specification | |
|---|---|---|
| Moisture, w% | ≤8 | |
| Strength, w% | ≥98 | |
| Surface density, g/l | 450-550 | |
| Water capacity, w% | ≥66 | |
| Iodine adsorption rate, mg/g | ≥1100 | |
| Ash, w% | ≤3 | |
| Thickness, mm | ≥2 | |
| Particle size distribution, w% | ＞5mm | ＜5 |
| 2.5-5mm | ＞92 | |
| ＜2.5mm | ＜3 | |
| Flake-free (flakes are removed by air separation) | ||
Heycarbons Coal Mercury Catalyst Activated Carbon Specification
In addition to coconut shell mercury catalyzed activated carbon, heycarbons also produces coal-based mercury catalyzed activated carbon. You can learn about its specifications from the table below. Of course, Heycarbons can also customize mercury catalyst activated carbon according to your needs
| Project | High Mercury Catalyst | Environmentally friendly low mercury catalyst |
|---|---|---|
| Appearance | Black pellet | Black pellet |
| HgCl2 content (wt) | 10.5%-12.5% | 4.0%-6.5% |
| Moisture (wt) | ≤0.3 | ≤0.3 |
| Packing density | 590-650g/L | ≤580g/L |
| Mechanical strength | ≥98% | ≥95% |
| Particle size | 2.5-4.0mm (Customizable) | 2.5-4.0mm (Customizable) |
Custom Heycarbons Activated Carbon Solution
Heycarbons provides a full range of activated solutions at competitive prices.
What Clients Say on Our Activated Carbon
Custom Heycarbons Activated Carbon
Heycarbons has proudly served the activated carbon industry with high-quality products since 2005, Heycarbons can customize your coal activated carbon for your project.
- Customize different raw materials according to different applications.
- Cost-effective solutions customized according to customer applications. such as impregnated Alkaline or acidic substances, with CuO, MgO , KI
- Customized size, CTC, iodine value, ash, H2S working capacity, etc.
Call Us
+86-180 3788 5195
Our Email
info@heycarbons.com
Heycarbons Other Activated Carbon Solutions
Drinking Water treatment
Heycarbons provide 8*16, 8*30, 12*40, 30*60, 50-150 mesh high iodine value low ash granular carbon for water treatment and water device – CTO, UDF.
Waste water Treatment
Heycarbons supply of granular and powdered activated carbon for wastewater treatment to remove COD, BOD, heavy metals, organics, iodic acid, odors, hydrocarbons, color, etc.
VOCs Removel
Our activated carbon can help remove volatile organic compounds (VOCs) from the air by removing contaminants and impurities.
Gold Recovery
Provides high iodine 6-12, 8-16mesh coconut shell granular carbon for gold mining. (CIC, CIP, CIL)
Air Purification
Heycarbons provide 4mm, 0.9-8mm pelleted and impregnated pellet activated carbon, and granular carbon for various exhaust gas treatment, vapor recovery, VOCs removal, biogas H2S removal, etc.
Solvent Recovery
Heycarbons provide EAC carbon for high-end air purification or various gas solvent recovery, such as benzene, toluene, and other solvents, Dichloromethane solvent recovery, and tape factory solvent recovery.
Catalyst Carrier
A special process, adding a Special substance in Pellet (Extruded) activated carbons, also named Catalytical activated carbons, used for acid gas treatment such as H2S, water washing regeneration, high strength
Food Purificaion Decolorization
Heycarbons provide 8*16, 8*30, 12*40 mesh bituminous or briquetting activated carbon for food and water decolorization and purification, such as Sugar, MSG, Juice and wine, Edible oil, glycerin, Sewage decolorization, Corn starch sugar, amino acid, etc.
Steps to Custom Heycarbons Activated Carbon
Consultation
By understanding your needs and requirements, our salesmen work with you to submit the appropriate activated carbon solution.
Quotation
Heycarbons expert customer service will provide you with a free quote based on your requirements as well as product specifications and quantities.
Production
Heycarbons has sufficient inventory and strong production capacity, and will report production progress to you from time to time.
Shipping
Heycarbons know you need to receive the product as soon as possible, after rigorous quality checks and protective packaging, by fedex shipping.
Are You Looking for Activated Carbon Manufacturers?
Contact us for design assistance, free quote, and expert advice today.
Your inquiry will be replied within 24 working hours, and we respect your privacy.
