answersLogoWhite

0

Answer to question: How lignin can be separated from black liquor

Bountiful Applied Research has a proprietary process for this application. For explanation of process, see BARC-USA web page: http:/www.barc-usa.com.

The separation process is patented, and a follow-on process improvement is in process of being patented (patent applied).

The simple process is addition of a polymer to the alkali black liquor, which carries lignin in colloidal dispersion. After treatment with polymer, the black liquor is brought to low pH (approximately 2.5) where lignin separates with clear supernatant liquor remaining.

With use of phosphoric acid to acidify (noting the dilute phosphoric acid is regenerated), alkali chemicals can be recycled with causticizing, same as process used with conventional recovery process in the paper industry. More detailed information (power-point slide presentation and other) can be provided by contacting hcooper@barc-usa.com.

Harrison Cooper

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

Where can you buy black currant liquor in Atlanta GA?

Black currant liquor is often called cassis or creme de cassis. You can usually find that in any liquor store.


Dose black velvet liquor have caffeine in it?

No, Black Velvet has no caffeine.


Why is there liquor?

There is liquor because it makes people a lot of money. This country tried to ban liquor before and it did not work. Banning liquor just created a black market and more crime.


Black Market?

deal in illegally, such as arms or liquor


What is the term given to substance produce by thr paper industry that is harmful to organisms?

The substance produced by the paper industry that is harmful to organisms is called "black liquor." It is a byproduct of the pulping process and contains toxic chemicals such as lignin and hemicellulose, which can be harmful if not properly treated before being released into the environment.


What is the source of lignin in soil?

The source of lignin in the soil is dead plants.


If phyloroglucin contains lignin?

One of the things that phyloroglucin contains is lignin.


What is the name of a Half black and half white bottle liquor?

Sheridans


Why is it surprising to find lignin in aquatic plants?

Lignin is a biopolymer that gives support to vascular plants, and is thought to have evolved after aquatic plants took on land. many aquatic plants produce lignin or lignin-like polyphenols however. There is still debate on distinguishing terrestrial from aquatic plant lignin.


What has the author Franciska Sundholm written?

Franciska Sundholm has written: 'EPR studies of compounds related to lignin' -- subject(s): Lignin, Electron paramagnetic resonance 'Syntheses of lignin model compounds and assignment of their infra-red spectra' -- subject(s): Lignin


Separate the colors from black?

Colors from black can be separated by a process called Chromatography.


What form of lignin is used in paper?

Kraft lignin is the form of lignin commonly used in paper making. It is a byproduct of the kraft pulping process that breaks down wood fibers to extract cellulose for paper production. Kraft lignin provides strength and structure to paper products.