Safety and Quickly High Purity 1.4-Butanediol/Bdo CAS 110-63-4

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Uses:1,4-Butanediol is used to produce polybutyleneterephthalate, a thermoplastic polyester;and in making tetrahydrofuran, butyrolactones,and polymeric plasticizers.

Production Methods:Methods of manufacturing:

The most prevalent 1,4-BD production route worldwide is BASF's Reppe process, which reacts acetylene and formaldehyde. Acetylene reacts with two equivalents of formaldehyde to form 1,4-butynediol, also known as but-2-yne- 1,4-diol. Hydrogenation of 1,4-butynediol gives 1,4-butanediol. 1,4-BD is also made on a large industrial scale by continuous hydrogenation of the 2-butyne- 1,4-diol over modified nickel catalysts. The one-stage flow process is carried out at 80 - 160 deg C and 300 bar.

Mitsubishi uses a three-step process:

(1) the catalytic reaction of butadiene and acetic acid yields 1,4-diacetoxy-2-butene;

(2) subsequent hydrogenation gives 1,4-diacetoxybutane; and

(3) hydrolysis leads to 1,4-butanediol.