Pretreatment with alkali before chlorination was studied in bleached acid sulfite poplar pulp production.
对酸性亚硫酸盐法杨木浆的氯化前碱处理进行了研究。
The active cooking chemicals in the sulfite process are sulfur dioxide, sulfurous acid, and calcium bisulfite.
亚硫酸盐法制浆过程中活性化学物质是二氧化硫、硫酸以及酸性亚硫酸钙。
A method for synthesizing sodium sulfoacetic is discussed, which sodium sulfoacetic is synthesized with sodium sulfite and ethyl monochloro acetate, with sodium sulfite and chloroacetic acid.
主要分别介绍用亚硫酸钠与氯乙酸乙酯合成磺酸乙酸钠和亚硫酸钠与氯乙酸合成磺酸乙酸钠。
The effect of combination of L-ascorbic acid with cysteine and sodium sulfite on anti-browing of green tea liquor was better than that of single compound of L-ascorbic acid.
抗坏血酸与半胱氨酸和亚硫酸钠组合处理对绿茶水的保质效果优于L-抗坏血酸单独处理。
We investigate the bleaching of neutral sulfite reed pulp by peroxy acetic acid (PAC).
对过醋酸（PAC）漂白中性亚硫酸盐苇浆进行了实验研究。
Based on trials, acid, alkali and oxidant, as bond-breaker existed certain limits, while the reductant with hydrophobic group combined with sulfite can obtain ideal effect and lower cost.
带巯基的还原剂和亚硫酸盐拼用，可获得理想的效果，且成本不高；
This text studied the technology about sodium sulfite and L-ascorbic acid restrain Maillard reaction which produces pigment accompanied with hydrolysis of casein.
本文探讨了亚硫酸钠和L-抗坏血酸抑制酪蛋白在水解过程中发生褐变的技术。
This paper studied the TCF bleaching of rice straw ammonium sulfite pulping, which contains of oxygen-alkali bleaching, acid treatment and hydrogen peroxide bleaching.
研究了稻草亚铵浆的氧碱漂白、酸预处理和过氧化氢补充漂的三段漂白。
The preparation methods of hexadecylguanidium sulfite from hexadecylamine and aminoiminomethanesulfonic acid was studied.
研究了以十六胺和三氧化硫脲为原料制备十六胍亚硫酸盐的方法。
The sulfite oxidation process under acid condition to treat concentrated H 2SO 4 bearing wastewater from pharmaceutical production is described.
讨论了利用亚硫酸盐做氧化剂，在酸性条件下氧化处理制药厂的高浓度含硫废水。
The process is carried out by using Soxhlet set, as experiment unit, with methyl sulfonic acid as a catalyst and magnesium sulfite as dehydrating agent, giving 97.
报道了合成乳酸丁酯的新方法 ，以乳酸和正丁醇为原料 ，在甲基磺酸催化下以亚硫酸镁为脱水剂 ，用索氏提取器进行回流合成。
Dodecyl guanidine hydrogen sulfite has been synthesized from dodecyl amine and aminoiminomethanesulfonic acid.
用三氧化硫脲和十二胺为原料合成了重十二胍亚硫酸盐 。
Dodecyl guanidine hydrogen sulfite has been synthesized from dodecyl amine and aminoiminomethanesulfonic acid.
用三氧化硫脲和十二胺为原料合成了重十二胍亚硫酸盐 。
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