蒸煮所用酸液是一种含有过量硫酸的酸性亚硫酸钙的溶液。
The cooking liquor, called acid, is thus a solution of calcium which contains an excess of sulfurous acid.
亚硫酸盐浆：把木片在亚硫酸钙溶液内加压蒸煮而成的酸性浆。
Sulphite pulp: Acid pulp made from wood chips cooked under pressure in a solution of bisulphite of lime.
介绍了亚硫酸钙氧化为石膏的反应机理及影响反应过程的某些因素。
The paper introduces the reaction mechanism of oxidating sulfurous acid calcium to gypsum and some factors to influence the reaction process.
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。
The active cooking chemicals in the sulfite process are sulfur dioxide, sulfurous acid, and calcium bisulfite.
分别采用重量法、蒸馏法和X射线荧光光谱法测定含亚硫酸钙的脱硫灰中硫含量。
The traditional chemical analysis, distillation method and XRF were used to measure the sulfur content in desulphurize slag contained calcium sulfate.
研究结果表明：亚硫酸钙对C_4AF有缓凝作用，而对C_3A基本不具缓凝作用；
The results showed that CaSO3 had retarded setting action on C4AF but didn't influent C3A;
因为水晶解决的他们大号和结构，石膏脱水更比亚硫酸钙晶体，降低的副产品处理设备尺寸的要求。
Because of their larger size and structure, gypsum crystals settle and dewater better than calcium sulfite crystals, reducing the required size of by-product handling equipment.
射线荧光光谱法通过建立标准曲线后，可以准确而又快速地检测脱硫灰中亚硫酸钙及硫酸钙总的硫含量。
The XRF method based on standard curve could determine the total sulfur content in desulphurize slag accurately and rapidly.
研究结果表明： 亚硫酸钙含量较多的脱硫灰可用作水泥的调凝剂，并且与二水石膏复掺后的效果更好。
The results obtained showed that the desulphurization residues containing a number of CaSO_3 may be used as a retarder, and be better by adding with gypsum.
吸收塔再循环水箱的规格选择要适当，以便为亚硫酸钙氧化成硫酸钙，石膏结晶，降低流液过饱和等提供充足的时间。
The size of the absorber recycle tank will be determined to provide sufficient retention time for oxidation of calcium sulfite to sulfate, gypsum crystallization and desupersaturation of the liquid.
在实验室电炉静置煅烧条件下，研究了硫酸钙和亚硫酸钙、含亚硫酸钙的脱硫灰和石膏在水泥熟料煅烧过程中硫的逸放。
The sulfur emissibility during burning cement clinker with calcium sulfate, calcium sulfite gypsum and desulphurize slag that consist of CaSO3 separately were studied in laboratory electric stove.
结果表明：以GB/T176—1996《水泥化学分析法》和GB/T5484—2000《石膏化学分析法》中的基准法即重量法不能准确测定含亚硫酸钙的脱硫灰中的硫含量；
The results showed that the gravimetric method commanded by GB/T176-1996 and GB/T5484-2000 was inaccurate to measure the sulfate content while the distillation method was comparatively accurate.
结果表明：以GB/T176—1996《水泥化学分析法》和GB/T5484—2000《石膏化学分析法》中的基准法即重量法不能准确测定含亚硫酸钙的脱硫灰中的硫含量；
The results showed that the gravimetric method commanded by GB/T176-1996 and GB/T5484-2000 was inaccurate to measure the sulfate content while the distillation method was comparatively accurate.
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