sulfate process

sulfate process
noun
: an alkaline process for making pulp from wood chips in which the cooking liquor contains chiefly sodium hydroxide together with considerable amounts of sodium sulfide derived from the reduction of sodium sulfate added during the recovery process

* * *

Chem.
a process for making wood pulp by digesting wood chips in an alkaline liquor consisting chiefly of caustic soda together with sodium sulfate. Also called kraft process.

* * *

sulfate process,
a papermaking process in which wood chips are converted into pulp by cooking under pressure in a solution consisting of sodium sulfide, sodium hydroxide, and water.

Useful english dictionary. 2012.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • sulfate process — Chem. a process for making wood pulp by digesting wood chips in an alkaline liquor consisting chiefly of caustic soda together with sodium sulfate. Also called kraft process. * * * …   Universalium

  • sulfate pulp — noun : wood pulp prepared by the sulfate process * * * wood pulp made by the sulfate process …   Useful english dictionary

  • sulfate paper — noun : unbleached or bleached paper made wholly from sulfate pulp * * * paper made from sulfate pulp. * * * sulfate paper, any paper of various grades and types made from pulp produced by the sulfate process, as kraft and other stocks intended… …   Useful english dictionary

  • sulfate pulp — wood pulp made by the sulfate process. * * * …   Universalium

  • sulfate reduction — (sul feīt) The process of sulfate use as an oxidizing agent, which results in the accumulation of reduced forms of sulfur such as sulfide, or incorporation of sulfur into organic molecules, usually as sulfhydryl groups …   Dictionary of microbiology

  • Iron(II) sulfate — Other names Ferrous sulfate; green vitriol; iron vitriol; copperas; melanterite; szomolnokite …   Wikipedia

  • Kraft process — The Kraft process (also known as Kraft pulping or sulfate process) describes a technology for conversion of wood into wood pulp consisting of almost pure cellulose fibers. The process entails treatment of wood chips with a mixture of sodium… …   Wikipedia

  • kraft process — Chem. See sulfate process. * * * Chemical method for producing wood pulp using caustic soda and sodium sulfide as the liquor in which the pulpwood is cooked to loosen the fibres. The process (from German kraft, strong ) produces particularly… …   Universalium

  • kraft process — Chem. See sulfate process …   Useful english dictionary

  • Mannheim process — Process type Chemical Industrial sector(s) Chlor Alkali industry Feedstock sodium chloride, sulphuric acid Product(s) hydrogen chloride The Mannheim process is an important method for the manufacture of hydrogen chloride and sodium sulfate from… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”