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EP0710686A2 - Polyols and process for their preparation .

EP0710686A2 - Polyols and process for their preparation .

A process for the production of polyols in the form of bifunctional aromatic polyester alcohols from PET waste and waste from PET production is described.

PRELIMINARY FEASIBILITY REPORT (PFR) POLYOL/PROPYLENE .

PRELIMINARY FEASIBILITY REPORT (PFR) POLYOL/PROPYLENE .

Currently there is limited production of Polyols/Propylene Glycol (PG) in India due to limited availability of an important intermediate Propylene Oxide (PO), which requires Propylene feedstock. PO is the intermediate which is mainly used for production of Polyols (73%) and Propylene Glycol (14%).

anace PURe technology

anace PURe technology

Acidolysis is a process in which carboxylic acids are used at high temperatures to chemically "break" the polyurethane chain and convert it back into reactive raw material that can be used for the same application.The process is particularly suitable for the reuse of flexible foams since the resulting recycled polyol has a very low OH number, which is a requirement for use in flexible foams.

PET/polyester polyol equipment - anace

PET/polyester polyol equipment - anace

PET-Polyol Equipment. PET/polyester polyol equipment. . The preparation of polyester polyols is based on the reaction of di- or polyfunctional carboxylic acids and alcohols at temperatures up to 230 ° C (450 ° F). Depending on the raw materials used, the polyols produced may have low or high functionality and be aliphatic or aromatic. .

saturated polyester polyol reactor

saturated polyester polyol reactor

Polyester polyol turnkey solution on chemical machinery . The whole set of resin plant includes reactor, vertical fractionating column, horizontal condenser, water storage tank, oil spill tank and piping .

saturated polyester polyol reactor

saturated polyester polyol reactor

POLYETHER POLYOLS PRODUCTION Basis and Purpose . polyether polyols manufacturing units (PMPU). Polyether polyols are defined as the products formed by the reaction of ethylene oxide (EO), propylene oxide (PO), or other cyclic ethers with compounds having one or more reactive hydrogens (i.e., a hydrogen atom bonded to nitrogen, sulfur, oxygen, phosphorus, etc.).

anace PURe technology

anace PURe technology

Acidolysis is a process in which carboxylic acids are used at high temperatures to chemically "break" the polyurethane chain and convert it back into reactive raw material that can be used for the same application.The process is particularly suitable for the reuse of flexible foams since the resulting recycled polyol .

Polyester Polyols - an overview | ScienceDirect Topics

Polyester Polyols - an overview | ScienceDirect Topics

Polyols can be either polyether polyols or polyester polyols. Polyether polyols are made by the reaction of epoxides with compounds having active hydrogen atom. Polyester polyols are made by the polycondensation reaction .

20l polyol reactor

20l polyol reactor

Two phosphorylated polyols were prepared: Polyol-P1, with 5% weight of phosphoric acid and molar ratio O epoxide /H 3 PO 4 = 7.8 and Polyol-P2, with 10% weight of phosphoric acid and molar ratio O epoxide /H 3 PO 4 = 3.9. After finishing the addition, the reaction mixture was put under reflux with mechanical stirring at 370 rpm, for 4 h, at the .

Your specialist for PUR - H&S Anlagentechnik

Your specialist for PUR - H&S Anlagentechnik

Polyester polyol reactors (PET/PA) H&S technology for generating aromatic polyester polyols (APP) from polyethylene terephthalate (PET) as well as phthalic acid anhydride (PA) is based on the glycolysis method. Process sequence and duration (polyol generating based on PET) Raw materials required for the processes • Polyethylene terephthalate .

US6048907A - Apparatus and method for converting .

US6048907A - Apparatus and method for converting .

An apparatus for converting PET into polyester polyols including a reactor vessel having an interior volume, a stirring member rotatably mounted inside the reactor vessel and adapted to stir contents of the reactor vessel, a rotation device connected to the stirring member and adapted to rotate the stirring member in the reactor vessel, and a heater interactive with the interior of the reactor .

Recent Developments in the Chemical Recycling of PET

Recent Developments in the Chemical Recycling of PET

Reaction scheme for PET synthesis. BHET is first formed from the reaction of either (a) TPA and EG, or (b) DMT and EG, and (c) eventually polymerized to PET. As a thermoplastic polyester resin, PET exhibits interesting physical and chemical properties. It is an amorphous glass-like materi al in its purest form.

Polyol Production Plant - Chemical Process Plants

Polyol Production Plant - Chemical Process Plants

POLYOL PRODUCTION PLANTS Polyol production plants will be designed specifically according to usage area of required product such as, PU waste materials, PET / PSA, polyesters such as PLA and PHB, as well as bio monomers. All the specifications and requirements are taken into consideration and well implemented from development all the way through to plant commissioning.

Green Polyol - .GLOBAL

Green Polyol - .GLOBAL

Green polyol (GP) is manufactured by IQS Innovations in Bucharest from recycled PET utilising a patented Microwave Reactor Process. PET (polyethylene terephthalate), is a form of polyester that is is extruded or molded into plastic bottles and containers for packaging foods and beverages.

Our Products | Arropol

Our Products | Arropol

In this process, PET from re-constituted post-consumer or post-industrial PET carpet fiber is depolymerized and re-processed into a polyol. Our polyols have been tested and approved for use in urethane underlayment for various hard surface flooring installations, shoe footpad inner liners, spray foam and other urethane applications.

Recent Developments in the Chemical Recycling of PET

Recent Developments in the Chemical Recycling of PET

Reaction scheme for PET synthesis. BHET is first formed from the reaction of either (a) TPA and EG, or (b) DMT and EG, and (c) eventually polymerized to PET. As a thermoplastic polyester resin, PET .

Petopur to make 4 ktpa of polyols from PET

Petopur to make 4 ktpa of polyols from PET

The main unit of the plant is a reactor where PET is converted into an APP, Petopur added. In the process PET is fed into the reactor from above and weighed. The process quantity is then added to the reactor, heated and mixed mechanically by means of an agitator, while DEG (diethylene glycol) is being fed in to produce the polyol.

Multirange synthesis for producing polyol - News at .

Multirange synthesis for producing polyol - News at .

The third reactor type H&S offers is a PU reactor that breaks down PU waste at the PU processor to polyol in order to re-introduce the material into the cycle. Read more: Machines 471 Technologies 281 Polyethylene terephthalate (PET) 163

Polyester Polyols - an overview | ScienceDirect Topics

Polyester Polyols - an overview | ScienceDirect Topics

Polyols can be either polyether polyols or polyester polyols. Polyether polyols are made by the reaction of epoxides with compounds having active hydrogen atom. Polyester polyols are made by the polycondensation reaction of multifunctional carboxylic acids and polyhydroxyl compounds. They can be further categorized according to their end use.

polyurethane Suppliers & Manufacturers - Page 16

polyurethane Suppliers & Manufacturers - Page 16

Product/Service:Polyurethane,Polyol,Prepolymer,Reactor,Footwear,Shoesole,Slipper,Know-How,Turkey,Istanbul,Resin,Systemhouse,PU, pilot reactor,pet recycling reactor for rigid polyurethanes,polyol blender,heating oil generator,PU Resin Reactor,Reactor For PU Flexible Foam,Soy Polyol Reactor,PU Adhesive Reactor,PU Adhesive Reactor,Reactor For One .

Polyester Polyols: Synthesis and Characterization of .

Polyester Polyols: Synthesis and Characterization of .

tent. In the case of TPA-DEG polyols, this is achieved with TPA and DEG in about a 1:2 molar ratio and by targeting the monomer, 1,n 1. Free DEG remaining in such statistical polyol mix-tures acts as a liquidifier and helps to minimize the content of free carboxylic acid that is detri-mental to the reaction with isocyanate and foam formation.

saturated polyester polyol reactor

saturated polyester polyol reactor

Polyester polyol turnkey solution on chemical machinery . The whole set of resin plant includes reactor, vertical fractionating column, horizontal condenser, water storage tank, oil spill tank and piping (dilution kettle).All parts of the equipment that contact with the material are all made by stainless steel.

Polyethylene terephthalate - Wikipedia

Polyethylene terephthalate - Wikipedia

PET consists of polymerized units of the monomer ethylene terephthalate, with repeating (C 10 H 8 O 4) units. PET is commonly recycled, and has the number "1" as its resin identification code (RIC). Depending on its processing and thermal history, polyethylene terephthalate may exist both as an amorphous (transparent) and as a semi-crystalline .

Our Products | Arropol

Our Products | Arropol

In this process, PET from re-constituted post-consumer or post-industrial PET carpet fiber is depolymerized and re-processed into a polyol. Our polyols have been tested and approved for use in urethane underlayment for various hard surface flooring installations, shoe footpad inner liners, spray foam and other urethane applications.

Polyether Polyols & Polyester Polyols - Nexant Training

Polyether Polyols & Polyester Polyols - Nexant Training

Polyether Polyols & Polyester Polyols. There are two main classes of polyols used in polyurethanes: polyether polyols and polyester polyols. Although both polyether polyols and polyester polyols are used in coating, adhesive, sealant and elastomer applications (collectively referred to as CASE), polyether polyols are more often used in flexible foam, while polyester polyols are more commonly .

Your specialist for PUR - H&S Anlagentechnik

Your specialist for PUR - H&S Anlagentechnik

Polyester polyol reactors (PET/PA) H&S technology for generating aromatic polyester polyols (APP) from polyethylene terephthalate (PET) as well as phthalic acid anhydride (PA) is based on the glycolysis method. Process sequence and duration (polyol generating based on PET.

(PDF) Polyester Polyols from Waste PET Bottles for .

(PDF) Polyester Polyols from Waste PET Bottles for .

terephthalate (PET) or polyester copolymers with various glycols (e. g. PET-N) or carboxylic acids (e. g. PET -G) of various colours and forms make new paths of .

Polyurethanes - Essential Chemical Industry

Polyurethanes - Essential Chemical Industry

If the polyol has two hydroxyl groups and is mixed with either TDI or MDI, a linear polymer is produced. For example, a linear polyurethane is produced by reaction with a diisocyanate and the simplest diol, ethane-1,2-diol, a condensation polymerization occurs: A much used polyurethane is made from TDI and a polyol derived from epoxypropane:

Top 10 Polyether Polyol Manufacturers in the World 2018 .

Top 10 Polyether Polyol Manufacturers in the World 2018 .

Sep 17, 2018 · In the modern economic age, polyols have emerged as a lucrative and indispensable class of industrial chemicals.According to Technavio's latest industry research report on this topic, the global polyol market was worth over US 20 billion at the end of 2017, while the world's top 10 polyether polyol manufacturers are dominating the market with some of the highest polyol productions every year.

Fabricante De Reactor De Poliol Pet - Buy Reactor De .

Fabricante De Reactor De Poliol Pet - Buy Reactor De .

Fabricante De Reactor De Poliol Pet, Find Complete Details about Fabricante De Reactor De Poliol Pet,Reactor De Poliol Pet,Reactor De Poliol Pet,Reactor De Flujo Superior 5000a from Mixing .