Recommandations du fabricant de néopentylglycol

Recommandations du fabricant de néopentylglycol

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Neopentyl glycol (NPG) is an important chemical building block used in a variety of industries such as coatings, adhesives, lubricants, plastics, and more. As a manufacturer of NPG, following best practices and recommendations around production methods, quality control, storage and transportation, and working with clients can help ensure efficient operations that meet industry standards. This blog post will provide an overview of key recommendations for NPG manufacturers.

Méthodes de production

Fabricant de néopentylglycol

Selecting the appropriate production method is the first key step for NPG manufacturers. The common routes for manufacturing NPG industrially are:

  • Hydrogenation of hydroxypivalic acid (HPA)
  • Conversion of pentaerythritol to NPG
  • Hydrogenolysis of neopentyl glycol esters

Each method has its own advantages and limitations regarding yield, cost efficiency, complexity, etc. We recommend for manufacturers to assess their technological capabilities, desired production volume and quality, available feedstocks, and budget to determine the optimal production route.

Table 1 compares the major NPG production methods:

HPA hydrogenationHigh, ~90%LowPreferred for large scale
Pentaerythritol conversionModerate, 70-85%HighMultiple steps, purification intensive
Neopentyl ester hydrogenolysisLow, <70%ModerateLimited commercial use

Contrôle de qualité

Maintaining high product quality should be a priority. Key quality control parameters that NPG manufacturers need to implement testing for include:

  • Purity – GC-FID testing ensures purity above 99%
  • Water content – Karl Fischer titration, limit to <0.1%
  • Appearance – Clear liquid, no sediment or color
  • Acid value – Titration method, maximum 0.01 mg KOH/g

We also recommend putting controls around packaging to avoid contamination. Conducting periodic quality audits internally and by accredited third-party agencies also adds credibility.

Table 2 outlines the key quality metrics and frequency of testing advised:

PuretéGC-FIDEach batch
Water contentKarl Fischer TitrationWeekly
Acid valueTitrationMonthly
ApparenceVisual inspectionEach batch

Storage and Transportation

Proper storage and transportation of NPG is critical to maintain product integrity through the supply chain. We recommend NPG manufacturers follow these key guidelines:


  • Use stainless steel or epoxy-lined carbon steel tanks
  • Maintain nitrogen atmosphere and breathing quality air space
  • Control temperature between 18-40°C


  • Use stainless steel rail cars, tank trucks and isotainers
  • Ensure containers are purged with nitrogen prior to filling
  • Seal containers tightly to avoid exposure to atmosphere

Adhering to these materials, environmental controls, and containment measures helps preserve quality and prevent degradation issues.

Working with Customers

qu'est-ce que le néopentyl glycol

Developing strong working relationships with customers is also key for NPG manufacturers. Some best practices around customer interactions include:

  • Provide product specifications transparently
  • Outline quality control and assurance testing details
  • Offer technical services and support as needed
  • Host site visits to build relationships

Additionally, clearly communicating delivery lead times, minimum order quantities, and pricing upfront ensures smooth transactions. Gathering feedback from customer satisfaction surveys also helps improve processes.

Conclusion:Neopentyl Glycol Manufacturer

By following the recommendations around utilizing efficient production methods, implementing rigorous quality control testing, properly storing and transporting products, and building positive customer relationships, NPG manufacturers can achieve success through delivering high quality products and services. Maintaining safety and environmental standards is also essential. With attention to these critical areas, NPG manufacturers can thrive even in a highly competitive business landscape. Reevaluating and enhancing operations using latest technological innovations should be a key focus area as well.


Here are some frequently asked questions NPG manufacturers receive?

What is the typical lead time for NPG orders? Lead time can range from 2-6 weeks depending on production scheduling and order size. We advise customers to forecast demand early.

What logistics services do you offer?

We assist with loading/unloading, provide tracked transportation via tank containers to customer sites globally, and can help with customs clearance.

What technical support is available?

Our R&D scientists and engineers can help customize NPG grades for specific applications and provide guidance around safe handling and troubleshooting issues.

Do you offer sample sizes for testing?

Yes, we offer NPG samples ranging from 0.5 kg up to 10 kg for customer product qualification.

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