A company in Recycling Technologies primarily develops and utilizes advanced methods, machinery, and technology to convert waste materials into reusable materials, fuels, or other forms of energy. These companies focus on innovations that can improve waste management, reduce environmental pollution, and contribute to sustainability. Services may include recycling plastic, metal, electronic waste, organic waste, and other types of materials. Such companies may also be involved in research and policy advocacy, and may offer consultation services to other businesses looking to improve their own recycling practices.

1. Mechanical Recycling: This is the conventional method where waste materials are manually sorted, cleaned, shredded, and then melted to produce new products.  

2. Chemical Recycling: This method uses chemicals to break down waste materials into raw materials. This tech is often used for recycling plastics.  

3. Biomass Conversion: In this method, organic waste materials are converted into energy-rich substances through different processes like gasification, pyrolysis, and anaerobic digestion.  

4. Energy Recovery: This technology converts waste materials into usable heat, electricity, or fuel through different processes like combustion, gasification, and pyrolysis.  

5. Thermal Recycling: In this recycling technology, burnable waste material is incinerated at high temperatures.  

6. Hydrometallurgical Recycling: It uses aqueous solutions and chemical reactions to recover valuable metals from electronic waste.  

7. Bioleaching/Biotechnological: This method uses microorganisms to recycle waste materials.  

8. Composting: It treats organic wastes with the help of microorganisms that decompose organic matter and transform into nutrient-rich compost.  

9. Plasma Arc Recycling: It uses a high-energy, artificially created plasma zone to convert waste into molecular-sized gas, essentially converting waste to fuel or synthetic gas.  

10. In-vessel Composting: It involves putting organic waste within a drum, silo, concrete-lined trench or similar ‘vessels’.  

11. Landfill Mining: It is a process of excavating and recycling solid waste deposited in landfills.  

12. Water Recycling: This is the process of treating wastewater through several stages and converting it into potable water.  

13. Electronic Waste Recycling: This involves the collection of electronic waste (from computers, smartphones, etc.) and recovery of reusable, valuable materials within.  

14. Feedstock Recycling: This method depolymerizes waste synthetic polymers (like plastics) into their lower molecular weight monomers.  15. Precious Metal Recovery: This involves separating precious metals from waste materials, particularly electronic waste.

Selecting a recycling technology vendor for decarbonizing your company involves various steps:  

1. Identify Your Needs: These will depend on your industry, production methods, carbon emissions, and recycling capabilities. Remember to consider both your current and future needs.  

2. Do Your Research: Start by investigating vendors that specialize in your industry. Check their experience, credibility, reviews, and client testimonials. Additionally, look into any technological advancements or innovation they have demonstrated.  

3. Compare Services: Shortlist vendors that meet your criteria. Compare their technologies, services, prices, support, etc. Look for vendors who provide services like carbon footprint auditing or counseling to determine the best recycling technology for your specific situation.  

4. Check Compatibility: Ensure the vendor's technology is compatible with your existing systems, or if not, include costs for necessary hardware or software updates in your considerations.  

5. Environmentally Friendly: Check the vendor’s environmental credentials - they should operate using environmentally friendly practices themselves.  

6. Site Visit or Demo: Request to visit their facilities or ask for a technology demonstration. This will help you understand the process they use and determine if it's suitable for your business.  

7. Evaluate their Commitment: Assess whether the vendor shows a strong commitment to customer satisfaction and service.  

8. Ask for Proposals: Ask potential vendors for proposals and quotes. Make sure to discuss details like pricing, timelines, service level agreements, etc.  

9. Test and validate: Identify a vendor who can provide a proof of concept or pilot project before full-scale implementation.  

10. Budget Compatibility: Consider a vendor who offers solid solutions within your budget but avoid compromising on quality for low-cost solutions.  

11. Training and Support: Find out what type of training and support they provide for the implementation of their technology.  12. Compliance: Ensure that the recycling technology proposed by the vendor complies with all local, national, and international regulations around waste management, emissions, and environmental protection.  13. Consult the professionals: Engage environmental consultants or professionals to review the vendor's proposal and technology. These professionals can provide an independent perspective.  Take your time to thoughtfully weigh the options. A recycling technology vendor can be a long-term partner in your company’s journey towards decarbonization. Remember to prioritize a partner that adheres to circular economy principles and has a strong commitment towards the environment.