Invention Grant
US08366877B2 Lipohydrophilic glycerol based polymers as digestion aids for improving wood pulping processes
有权
亲水性亲油甘油基聚合物作为改进木材制浆工艺的消化助剂
- Patent Title: Lipohydrophilic glycerol based polymers as digestion aids for improving wood pulping processes
- Patent Title (中): 亲水性亲油甘油基聚合物作为改进木材制浆工艺的消化助剂
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Application No.: US12720973Application Date: 2010-03-10
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Publication No.: US08366877B2Publication Date: 2013-02-05
- Inventor: Prasad Y. Duggirala , Xiaojin Harry Li
- Applicant: Prasad Y. Duggirala , Xiaojin Harry Li
- Applicant Address: US IL Naperville
- Assignee: Nalco Company
- Current Assignee: Nalco Company
- Current Assignee Address: US IL Naperville
- Agent Benjamin E. Carlsen; Andrew D. Sorensen
- Main IPC: D21C3/00
- IPC: D21C3/00 ; D21C3/26

Abstract:
The invention provides a method of improving the digestion of wood chips into pulp. The method involves: adding a liphohydrophilic glycerol-based polymer additive to a solution used in the digestion process. This additive is unexpectedly effective at facilitating digestion. The branched and ether structure of the additive allows it to withstand the harsh nature of a highly alkaline environment. In addition, it is more soluble in high pH than other surfactants. The structure, resistance, and particular balance between hydrophobic and hydrophilic regions, causes the additive to increases the interaction between the wood chips and the digestion chemicals. This in turn reduces the costs, the amount of additive needed, and the amount of reject wood chunks that result from the digestion process.
Public/Granted literature
- US20110220307A1 LIPOHYDROPHILIC GLYCEROL BASED POLYMERS AS DIGESTION AIDS FOR IMPROVING WOOD PULPING PROCESSES Public/Granted day:2011-09-15
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