A kind of wood dissolving pulp ash remover and ash removal method
A technology of dissolving pulp and treatment agent, applied in the field of wood dissolving pulp ash removal and wood dissolving pulp ash removal agent, can solve the problem that the average degree of polymerization of dissolving pulp has little influence, the average degree of polymerization of dissolving pulp has great influence, and the ash removal rate is low, etc. problems, to avoid the reduction of cellulose polymerization degree, low acid dosage, and simple process flow
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0029] The process of the invention is used to treat the bleached poplar veneer dissolving pulp, the average degree of polymerization of the poplar veneer dissolving pulp is 490, the whiteness is 81%ISO, and the ash content is 0.77%.
[0030] Step 1: Take 15g of dry poplar veneer dissolving pulp, optimize the amount of penetrant to 0.02%, adjust the slurry concentration to 8% with distilled water, rub it by hand for 1 minute, seal the plastic bag, and put the plastic bag into constant temperature water Bath, control the constant temperature water bath temperature T=30°C, and the treatment time is 10 min;
[0031] The second step is: add the mixed acid treatment agent to the wood dissolving pulp treated with the penetrant, the optimal dosage of the mixed acid treatment agent is 0.9%, rub the plastic bag by hand for 1 minute, seal the plastic bag, and then put the plastic bag Put it into a constant temperature water bath, control the temperature of the constant temperature water...
Embodiment 2
[0035] The process of the invention is used to treat the bleached willow dissolving pulp. The average polymerization degree of the bamboo willow dissolving pulp is 513, the whiteness is 85%ISO, and the ash content is 0.87%.
[0036] Step 1: Take 15g of dried bamboo willow dissolving pulp, optimize the amount of penetrant to 0.03%, adjust the concentration of the pulp to 8% with distilled water, rub it by hand for 1 minute, seal the plastic bag, and put the plastic bag into a constant temperature water bath , control the constant temperature water bath temperature T=30℃, and the treatment time is 10 min;
[0037] The second step is: add the mixed acid treatment agent to the wood dissolving pulp treated with the penetrant, the optimal dosage of the mixed acid treatment agent is 0.8%, rub the plastic bag by hand for 1 minute, seal the plastic bag, and then put the plastic bag Put it into a constant temperature water bath, control the temperature of the constant temperature water ...
Embodiment 3
[0041] The process of the invention is used to treat the bleached eucalyptus dissolving pulp. The average degree of polymerization of the eucalyptus dissolving pulp is 713, the whiteness is 86% ISO, and the ash content is 0.57%.
[0042] Step 1: Take 15g of dry eucalyptus wood dissolving pulp, optimize the amount of penetrant to 0.04%, adjust the pulp concentration to 8% with distilled water, rub it by hand for 1 minute, seal the plastic bag, and put the plastic bag into a constant temperature water bath , control the constant temperature water bath temperature T=30℃, and the treatment time is 10 min;
[0043] The second step is: add the mixed acid treatment agent to the wood dissolving pulp after the penetrant treatment, the optimal dosage of the mixed acid treatment agent is 0.7%, rub the plastic bag by hand for 1 minute, seal the plastic bag, and then put the plastic bag Put it into a constant temperature water bath, control the temperature of the constant temperature water...
PUM
| Property | Measurement | Unit |
|---|---|---|
| whiteness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More