Zhishang Chemical

Welcome to Zhishang Chemical      +86-176 5311 3209     sales20@sdzschem.com

Zhishang Chemical

Butyl Glycol CAS 110-63-4

Molecular Formula: C4H10O2

Formula Weight: 90.12

ZSpharmac: Butyl Glycol Supplement

Share on facebook
Facebook
Share on twitter
Twitter
Share on linkedin
LinkedIn
Share on pinterest
Pinterest
Share on whatsapp
WhatsApp
Share on email
Email
Product Name: Butyl Glycol
CAS No: 110-63-4
Purity: 99%

Basic Info

Product Name:Butyl Glycol
Other Names:1,4-Butanediol
CAS:110-63-4
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Clear Colorless Liquid
EINECS No.:203-786-5
Storage:Store Below +30°C.
Provide:Butyl Glycol MSDS;
Butyl Glycol COA

What is Butyl Glycol?

Butyl Glycol (chemical formula: HOCH2CH2CH2CH2OH) is one of the isomers of butanediol, the terminal dihydroxyl substitution of butane, and is a colorless viscous liquid at room temperature.
Industrially, Butyl Glycol is prepared by reacting acetylene with two molecules of formaldehyde to generate 1,4-butynediol and then hydrogenating it. It can also be obtained by gas-phase hydrogenation of anhydrides or esters of succinic or maleic acid.
Butyl Glycol is mainly used in industry as a solvent for plastic and fiber production and as a raw material for other chemical products. At high temperature and in the presence of phosphoric acid, Butyl Glycol was dehydrated and cyclized to form tetrahydrofuran (THF); at 200 °C and catalyzed by ruthenium catalyst, Butyl Glycol was dehydrogenated to form γ-butyrolactone (GBL). Both are quite important industrial solvents and synthetic precursors. In addition, the production of engineering plastics polybutylene terephthalate (PBT) also requires Butyl Glycol.

Butyl Glycol Properties:

Melting point 16 °C (lit.)
Boiling point 230 °C (lit.)
density 1.017 g/mL at 25 °C (lit.)
vapor density 3.1 (vs air)
vapor pressure <0.1 hPa (20 °C)
refractive index n20/D 1.445(lit.)
Fp 135 °C
storage temp. Store below +30°C.
form Liquid
pka14.73±0.10(Predicted)
color Clear colorless
OdorOdorless
PH7-8 (500g/l, H2O, 20℃)
explosive limit1.95-18.3%(V)
Water Solubility Miscible

 

Butyl Glycol Uses

  1. Butyl Glycol is used as a solvent and a wetting representative, and also is likewise made use of in the manufacture of plasticizers, pharmaceuticals, polyester resins, polyurethane materials, and so on.
  2. Butyl Glycol is made use of as a chromatographic reagent and likewise in natural synthesis.
  3. Butyl Glycol is very versatile. In the USA as well as Western Europe, majority is made use of to produce tetrahydrofuran, adhered to by gamma-butyrolactone and also polybutylene terephthalate, a swiftly developing design plastic; Butyl Glycol as a chain extender and polyester The raw material is used for the manufacturing of polyurethane elastomers and also versatile polyurethane foams; the esters gotten from Butyl Glycol are excellent plasticizers for cellulose, polyvinyl chloride, polyacrylates and also polyesters. Butyl Glycol has good hygroscopicity and versatility, can be made use of as gelatin conditioner and water absorbent, cellophane and various other unused paper treatment representative. It can likewise be made use of to prepare N-methylpyrrolidone, N-vinylpyrrolidone and also other pyrrolidone by-products, and additionally utilized to prepare vitamin B6, pesticides, herbicides and also solvents, plasticizers, lubricants, moisturizing agents for various procedures, gentleness, adhesives as well as brighteners for the electroplating market.
  4. Butyl Glycol is a reagent for chemical analysis as well as is utilized as a fixed service for gas chromatography. Utilized as solvent, non-toxic antifreeze, food emulsifier, hygroscopic representative, for organic synthesis. Drug and also food markets.
  5. Butyl Glycol solvent. Moistening agent. Intermediates of plasticizers. Crosslinking representative for the manufacture of polyurethane elastomers. Organic Synthesis. Manufacture of tetrahydrofuran.

Butyl Glycol Production Process

Also known as acetylenic aldehyde method, this process is a traditional method for producing BDO, and is divided into classical method and improved method.

(1) Classical method

At high pressure (13.8-27.6 MPa) and 250-350 °C, acetylene is reacted with formaldehyde in the presence of a catalyst (usually cuprous acetylene and bismuth on a silica support), and then the intermediate is separated by Raney nickel catalyst. The typical theoretical yield of the whole process (calculated as acetylene) is 91% by hydrogenation of l,4-butynediol to BDO. The characteristic of the classical method is that the catalyst and product do not need to be separated, and the operating cost is low. However, the partial pressure of acetylene is high, and there is a danger of explosion. The safety factor of the reactor design is as high as 12 to 20 times, the equipment is large and expensive, and the investment is high; shortening and yield reduction.

(2) Improvement method

In the first step, acetylene and formaldehyde are placed in a reactor composed of several medium-slurry bed reactors in series, and an improved Cu catalyst is used to react at 79-90 ° C and 0.12-0.13 MPa to form butynediol. After filtration, the catalyst and the reactant are separated and left in the reactor, and the liquid-phase material flows out of the reactor for purification and enters the next reactor. The conversion rate of formaldehyde in this reaction was 98%, and the yield of 1,4-butynediol was 95%.

In the second step, a modified Pd/C catalyst is used in the slurry bed, and butynediol is hydrogenated at 60-70 °C and 2.0-2.5 MPa to form butenediol and BDO, and then in a packed reactor, with Ni is used as a catalyst to hydrogenate butenediol to form BDO at 120-150 ℃. Finally, BDO is purified by distillation and thin-film evaporation, and the purity of BDO is ≥99%. The technical characteristics of the improved method are:

a. Using an improved Cu catalyst, low-pressure operation, the decomposition pressure of acetylene itself does not exceed 0.14MPa, which simplifies the additional safety facilities and saves the high-pressure container and compressor;

b. The reactor is equipped with a special filtration system to facilitate the separation of catalyst and reactant in the reactor;

c. Butynediol is hydrogenated to form butenediol and BDO by using an improved Pd/C catalyst, and butenediol is converted to BDO by hydrogenation using Ni as a catalyst;

d. The feed composition is flexible, the formaldehyde content in the formaldehyde solution can be 2-10%, and the acetylene feed does not need to be diluted with inert gas. It is estimated that the operating cost and investment are reduced by 10-20% compared with the classical method.

The process was successfully developed by Japan’s Mitsubishi Chemical Corporation in the 1970s. Do it in 3 steps:

(1) Using Pd-Te/activated carbon as a catalyst at a temperature of 60 °C and a pressure of 6.9 MPa, butadiene undergoes an acetyl oxidation reaction with acetic acid and oxygen to generate 1,4-ethylenediacetoxy in a fixed bed reactor base-2-butene;

(2) Under the same temperature and pressure, the reaction solution after removing acetic acid is catalytically hydrogenated in a fixed-bed reactor to generate 1,4-ethanediacetoxybutane;

(3) BDO and 1-acetoxy-4-hydroxybutane are obtained by hydrolysis with cation exchange resin, and the latter is cyclized into THF by deacetoxylization with ion exchange resin. Typical theoretical yields (based on butadiene) are 80% to 85%. The technological characteristics of the method are that the raw material used is rich in resources, there is no potential safety hazard, and the yield of intermediate products and products is high; changing the hydrolysis conditions can adjust the production ratio of BDO and THF.

The process was developed by the Japanese Kuraray Company, and Lionel, which mainly produces propylene oxide, obtained the patent license of the technology and built a factory in Texas, USA. The process route is as follows: propylene oxide catalyzes isoformation of allyl alcohol, hydroformylation of allyl alcohol in the presence of a rhodium catalyst, and hydrogenation of the product in the presence of a Raney nickel catalyst to form BDO, with a typical theoretical yield of 93% . The process has low investment, simple process, high utilization value of by-products, rhodium-based catalyst can be recycled, long life, high yield of Butyl Glycol, low steam consumption, hydroformylation and hydrogenation are liquid-phase reactions, changing the process load Easy, characteristics such as Butyl Glycol output can be adjusted according to the market. The economics of the process depend to a large extent on the price of the raw material propylene oxide.

The process is a production method combining the gas-phase oxidation method for producing maleic anhydride from n-butane and the hydrogenation technology of maleic anhydride. The n-butane is oxidized under the catalyst of vanadium and phosphorus mixed oxide to generate maleic anhydride, which is then quenched with water to obtain maleic acid, which is then catalytically hydrogenated in a fixed bed reactor to generate BDO. This process eliminates the dehydration, purification and esterification processes of maleic anhydride, and reduces the main process from 8 to 4, thus shortening the entire process, reducing the number of equipment, reducing investment costs by 20%, and saving production costs by 25~ 40%. The process has few by-products, and almost all maleic anhydride can be converted into BDO. In the process of hydrogenation, recovery and purification, THF can also be produced by properly adjusting the process conditions.

The Ding Yi has three steps:

(1) Under the action of a catalyst, n-butane is oxidized into maleic anhydride by air, and then under the action of a catalyst, the maleic anhydride undergoes an esterification reaction with ethanol to generate diethyl maleic anhydride;

(2) Diethyl maleic anhydride is hydrogenated under the action of a catalyst to generate BDO, γ-butyrolactone and THF;

(3) Separation and purification of reaction products. By adjusting the process conditions, the ratio of BDO, γ-butyrolactone and THF can be changed.

The BDO production of this process has a cost advantage, so many new devices have been constructed using this process in recent years, which is also the main development trend of the BDO production process.

Butyl Glycol Method

There are greater than 20 sort of Butyl Glycol manufacturing approaches, but only 5 to 6 kinds are in fact created industrially. Currently, the main approaches of automation consist of boosted Reppe technique, maleic anhydride hydrogenation technique, maleic anhydride esterification hydrogenation approach, propylene oxide method and also Diene method.

It was first developed by German Reppe in the 1930s to synthesize 1,4-butynediol with acetylene as well as formaldehyde as basic materials, and afterwards militarize hydrogenation to synthesize 1,4-butanediol. Companies such as BASF, ISP as well as Dupont This technique has actually been made use of at all times, and the present domestic manufacturing companies primarily use the acetylene approach. Shanxi Sunway Group Co., Ltd. in my country embraces the enhanced GAF low-pressure slurry butanediol production process, and utilizes calcium carbide acetylene as resources to generate butanediol by low-pressure slurry bed Reppe method.

In the 1970s, Mitsubishi Chemical Corporation of Japan efficiently established the butadiene acetoxy procedure path making use of butadiene and also acetic acid as raw materials, and also developed numerous sets of manufacturing units in Japan, South Korea, Taiwan and various other places. Afterwards, Japan’s Tokuyama Soft drink Company successfully created and industrialized the butadiene chlorination approach, which chlorinated butadiene in gas stage at 260-300 ° C to produce 3,4-dichlorobutene-1 and 1, 4-Dichlorobutene-2, the former is utilized in the production of neoprene, the last is prepared by hydrolysis, 1, Butyl Glycol.

The British Davy (now Kvaerner) business has established a maleic anhydride esterification and hydrogenation method. First, maleic anhydride is esterified with a monohydric alcohol to form maleic acid diester, and after that it undergoes catalytic hydrogenation at 150 ~ 240 ℃ and 2.5 ~ 5MPa. Obtain Butyl Glycol. Shandong Shengli Oilfield Petrochemical Co., Ltd. presented the modern technology of maleic anhydride esterification as well as hydrogenation to create 1,4-butanediol from British Davy Business. One more hydrogenation process using maleic anhydride as basic material was established by Japan’s Mitsubishi Corporation. Initially, in the existence of Ni-Re driver, the response pressure is 0.08 MPa, and the reaction temperature level has to do with 260 ° C, and also maleic anhydride is hydrogenated to create Y-butyrolactone. and tetrahydrofuran, and then use K2O as co-catalyst molybdenum-chromium catalyst to catalyze the hydrogenation of Y-butyrolactone at 10Mpa as well as 250 ℃ to generate Butyl Glycol. The primary advantage of this technique is that crucial fine Chemicals tetrahydrofuran as well as gamma-butyrolactone.

Kuraray Company of Japan and Arco Firm of the United States have actually created a method for producing Butyl Glycol with propylene oxide as resources. Initially, allyl alcohol is made by isomerization of propylene oxide. Allyl alcohol is hydrogenated in fluid phase under the activity of rhodium-based catalyst. Formylation generates 4-hydroxybutyraldehyde, which is after that hydrogenated to form Butyl Glycol.

In the 1990s, Lyondell (previously Arco Chemical Business) in the USA efficiently created the allyl alcohol production process utilizing propylene oxide as resources, and constructed a 50,000-ton/ year production plant in Texas, United States. Dalian Chemical Industry Co., Ltd., Taiwan The 130,000-ton-scale butanediol plant of Co., Ltd. adopts the propenyl alcohol technique. In the 1990s, British BP as well as German Lutchi Company collectively created the Geminox process with C4 portion as resources, that is, n-butane is first oxidized to maleic anhydride, after that hydrated to maleic acid, and then hydrogenated to get Butyl Glycol, which simplifies the procedure. process, to ensure that the manufacturing cost is lowered and more affordable.

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.

Service

Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.

 

After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.

FAQ

Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.

 

HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?

You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.

Shipping

1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

Get Butyl Glycol Quotation